Abstracts

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ABSTRACT BOOKLET SIS GLOBAL FORUM 2012 MONACO, 13-15TH MARCH * Mark of Schlumberger

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GEOSCIENCES PETREL DRILLING - INNOVATIVE WELL PLANNING FOR GEOSCIENTISTS AND DRILLING ENGINEERS

A. Akamine & C. Cuihong (Schlumberger, France) ........................................................................................ 12 CAVENDISH INFILL WELL DEVELOPMENT UNCERTAINTY

A.Alexandru & P. Jeffs (RWE Dea, UK) ........................................................................................................... 13 WATER SATURATION MODELING IN KHAFJI CARBONATE RESERVOIR

M. H. Al-Otaibi & R. Khamatdinov (KJO) ........................................................................................................ 15 IMPLEMENTING PETREL'S ANT TRACKING ATTRIBUTE IN DEFINING A FRACTURE CONCEPT TO IMPROVE GAS RECOVERY FROM A CARBONATE RESERVOIR

T. Babi Puntarec, M. Plei & M. urekovi (INA, Croatia) ........................................................................... 16 COMBINING SCENARIOS AND REALIZATIONS TO FULLY EVALUATE UNCERTAINTY

M. Beardsell (Schlumberger, United Kingdom) ............................................................................................. 17 STRUCTURAL FRAMEWORK - FAULTS, SALTS & GRIDS

M. Beardsell & L. Truelove (Schlumberger, United Kingdom) ....................................................................... 18 STRUCTURAL MODELING REVISITED - EXCITING NEW DEVELOPMENTS IN BUILDING STRUCTURAL FRAMEWORKS IN PETREL

M. Beardsell (Schlumberger, United Kingdom) ............................................................................................. 19 10 YEARS OF OCEAN IN SHELL E&P; FROM LOBSTERS AND SHELLFISH TO A MARINE ECOSYSTEM

R. Bennett (Shell, Netherlands) ..................................................................................................................... 20 INTEGRATION OF OUTCROP, REMOTE SENSING AND HISTORICAL DATA IN PETREL FOR PROSPECT GENERATION IN A DATA POOR, MOUNTAINOUS TERRAIN, ONSHORE GULF OF SUEZ, EGYPT

A. Clare (Apache, Egypt) ................................................................................................................................ 21 SOME PERSPECTIVES ON GRIDS, PROPERTIES AND FLUID FLOW

C. Daly (Schlumberger, United Kingdom) ...................................................................................................... 22 REGIONAL PLAY FAIRWAY EVALUATION IN AREAS OF LIMITED SEISMIC DATA AVAILABILITY A WORKFLOW EXAMPLE FROM ABU DHABI

J. Efstathiou (Statoil, UAE) ............................................................................................................................. 23 PETREL FRONTIER EXPLORATION - BRAZIL WESTERNGECO MULTICLIENT DATA

A. Estrada (Schlumberger, Brazil) .................................................................................................................. 24 PETREL IN STATOIL EXPLORATION - RATIONALE AND IMPLEMENTATION

A. Groth (Statoil, Norway) ............................................................................................................................. 25 PETROPHYSICS IN SHELL FROM STANDARDISING TOOLS AND WORKFLOWS TO THE ROLE OF PROPRIETARY SOFTWARE DEVELOPMENT

J. Grtsch, A. van der Graaf, M. Kraaijveld & P. Zivkovic (Shell, Netherlands) .............................................. 26 PETREL WELL SECTION A MULTIDISCIPLINARY CANVAS PROVIDING INSIGHTS FOR OPTIMUM FIELD DEVELOPMENT

T. Hartman & H. Wang (Schlumberger, USA) ................................................................................................ 27 CONTINENTAL SCALE PLAY EVALUATION WITH A SHARED EARTH MODEL IN 3D: A LIVE DEMONSTRATION IN PETREL 2011

N. Harvey (Neftex Petroleum Consultants, UK)............................................................................................. 28 PRESTACK IN PETREL - A NEW INTEGRATED DIMENSION

E. Hoekstra & M. Herrara (Schlumberger, Norway) ...................................................................................... 29 QUANTITATIVE INTERPRETATION WORKFLOWS - GAINING MOMENTUM IN THE INDUSTRY AND IN PETREL

E. Hoekstra & G. van der Hoff (Schlumberger, Norway) ............................................................................... 30 STRUCTURAL AND STRATIGRAPHIC RECONNAISSANCE

E. Hoekstra & M. Herrara (Schlumberger, Norway) ...................................................................................... 31 REGIONAL GRAVITY MAGNETIC INVERSION WITH PETREL AND OCEAN FRAMEWORK

D. Huang (Jilin University, China) .................................................................................................................. 32 SCALING THE POWER OF PETREL

R. Kannan (Schlumberger, USA) .................................................................................................................... 33 UNDERSTANDING FAULT RISK IN EXPLORATION PROSPECTS CASE STUDY OF USING THE PETREL RDR PLUG-IN, DANISH CENTRAL GRABEN

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M. Kent (Maersk, Denmark) .......................................................................................................................... 34 A NEW ERA IN SEISMIC INTERPRETATION - INTERACTIVE SEISMIC RECONSTRUCTION FOR GEOLOGICALLY CONSISTENT INTERPRETATION ........................................................................................................................................

J. Klinger (Schlumberger, Norway) ................................................................................................................ 35 CONVENTIONAL GEOLOGICAL INTERPRETATION FASTER, MORE ACCURATE MAPS TO BETTER UNDERSTAND HYDROCARBON PLAYS

M. Koley & H. Wang (Schlumberger, United Kingdom) ................................................................................. 36 ENHANCING THE LIFE OF A RESERVOIR BY MAKING THE RIGHT WELL PLACEMENT DECISIONS

M. Koley & H. Wang (Schlumberger, United Kingdom) ................................................................................. 37 INTEGRATING DIFFERENT GEOSCIENCES & ENGINEERING DOMAINS FOR BETTER FIELD DEVELOPMENT DECISIONS IN A CARBONATE RESERVOIR

M. Koley (Schlumberger, United Kingdom) ................................................................................................... 38 SEISMIC GEOMECHANICS: A NEW DIMENSION FROM SEISMIC TO DRILLING

N. Koutsabeloulis (Schlumberger, United Kingdom) ..................................................................................... 39 MULTI-SCALE 3D GEOLOGICAL MODELLING OF AN OUTCROPPING ANALOGUE TO BETTER UNDERSTAND AND PREDICT FACIES GEOMETRY AND RESERVOIR QUALITY/DISTRIBUTION IN THE SUBSURFACE: THE CASE HISTORY OF OMBRINA OIL FIELD RESERVOIR AND ITS MAIELLA MOUNTAIN ANALOGUE

L. Lipparini (Medoilgas, Italy) ........................................................................................................................ 40 3D GEOSTEERING AND MWG (MODELLING WHILE GEOSTEEING) FOR COMPLEX RESERVOIR IN SAUDI ARABIA USING PETREL

S. Logan & M. Al Hamad (Saudi Aramco, Saudi Arabia) ................................................................................ 41 INTEGRATION OF FACIES ANALYSIS AND GEOSTATISTICS IN THE PETREL MODELING OF SOUTH SWAN HILLS DEVONIAN REEF RESERVOIR

S. Longfield, H. Slayman, S. Charbonneau & A. Seto (Penn West Exploration, Canada) ............................... 42 REGIONAL VELOCITIES MODELING FOR THE PALEOCANAL DE CHICONTEPEC WITH PETREL

J.G. Lopez (PEMEX, Mexico) .......................................................................................................................... 43 IMPROVED STRUCTURAL UNDERSTANDING OF THE NATURALLY FRACTURED HOTON FIELD, UK SOUTHERN NORTH SEA, USING A GEOMECHANICAL APPROACH IN PETREL

L. Maerten (Schlumberger, France) ............................................................................................................... 44 PETREL IN A GEOFRAME ENVIRONMENT QUICK ACCESS WITH MINIMAL CHANGE MANAGEMENT

G. Martayan (Schlumberger, France) ............................................................................................................ 45 SAVING TIME WITH DEPTH

H. Menkiti (WesternGeco, USA) .................................................................................................................... 46 IMPACT OF STRIKE-SLIP FAULT DISPLACEMENT OF HYDROCARBON SOURCE ROCK DEPOCENTER ON OIL FIELD DISTRIBUTION OF SALINAS BASIN, CALIFORNIA THROUGH 3D BASIN AND PETROLEUM SYSTEM MODELING

T.A Menotti, S. A. Graham & J.M. Moldowan (Stanford University, USA) .................................................... 47 MANAGEMENT OF STRUCTURAL UNCERTAINTIES WITH PETREL

T. Modiano (TOTAL, Nigeria) ......................................................................................................................... 48 RISING TO THE CHALLENGES OF THE WELLBORE - THE SIS VISION FOR TECHLOG

B. Moss (Schlumberger, United Kingdom) .................................................................................................... 49 TECHLOG - THE WELLBORE PLATFORM. BECAUSE EVERY WELL COUNTS

B. Moss & V. Vesselinov (Schlumberger, United Kingdom) ........................................................................... 50 CHARGE AND SEAL ASSESSMENT IN A STRUCTURALLY COMPLEX AREA IN VENEZUELA

M. Neumaier (Schlumberger, Germany) ....................................................................................................... 51 QUANTIFYING EXTENSION USING DYNEL 2D, AN EXAMPLE OF LATE PERMIAN TRIASSIC RIFTING OF THE SOUTH KARA BASIN, RUSSIAN ARCTIC

V.A. Nikshin (Rosneft, Russia) ........................................................................................................................ 52 A PRACTICAL MODEL FOR ORGANIC RICHNESS FROM POROSITY AND RESISTIVITY LOGS USING TECHLOG

S. Osman (Sudapet, Sudan) ........................................................................................................................... 54 SALT CANOPIES AN INTERPRETERS CHALLENGE

B. Otto (Wintershall, Germany) ..................................................................................................................... 55 TECHLOG GEOLOGY THE VALUE IN RESOLUTION

C. Parsons (Schlumberger, France) ................................................................................................................ 56

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TECHLOG, KEY PLATFORM FOR ECOPETROL CROSS SEGMENT GROWING STRATEGY C.Patino (Ecopetrol, Colombia) ..................................................................................................................... 57

PETROLEUM SYSTEMS MODELING AS A TOOL FOR THE PREDICTION OF FLUID COMPOSITION: THE PETROBRAS EXPERIENCE IN EXPLORATION

H. L. de B. Penteado & L.M. de Arajo (Petrobras, Brazil) ............................................................................ 59 ADVANCED CORE-LOG INTERPRETATION USING TECHLOG

T. Pritchard (BG Group, United Kingdom) ..................................................................................................... 60 EXXONMOBILS GLOBAL DEPLOYMENT STRATEGIES FOR PETREL

W. Ragosa (ExxonMobil, USA) ....................................................................................................................... 61 EXPLORATION RISK ASSESSMENT OF AN AREA IN GUAJIRA OFFSHORE COLOMBIA USING PETREL AS CENTRAL TECHNOLOGY

V. Ramirez, P. Correa and A.M. Lopez (Ecopetrol, Colombia) ....................................................................... 62 PETREL THE VISION CONTINUES

T. Randen (Schlumberger, Norway) .............................................................................................................. 63 FACIES AND PETROPHYSICAL MODELING USING SEISMIC ATTRIBUTES: AN EXAMPLE OF A STRATIGRAPHIC RESERVOIR

J. Rodas (Petroamazonas, Ecuador) .............................................................................................................. 64 WESTERNGECO AND STATOIL: SEISMIC PROCESSING AND DEPTH IMAGING COLLABORATION

P.Singer (Statoil, USA) ................................................................................................................................... 65 APPLICATION OF A PETROPHYSICAL GROUPING APPROACH TO CARBONATE RESERVOIR ROCK-TYPING IN A SUPERGIANT ONSHORE ABU DHABI (U.A.E) OILFIELD, BASED ON CAPILLARY PRESSURE DATA AND PROPAGATION USING SELF-ORGANIZING MAPS

M.R.P. Singh (ADCO, United Arab Emirates) ................................................................................................. 66 A NEW 3D GEOLOGICAL MODELING APPROACH FOR FRACTURED BASEMENT RESERVOIR - A CASE STUDY FROM THE NAMCONSON BASIN, SOUTHERN OFFSHORE VIETNAM

H.P. Son (CSJOC (Con Son Joint Operating Company), Vietnam) .................................................................. 67 GEOMECHANICAL INTEGRATED STUDY IN NATURALLY FRACTURED RESERVOIRS

J. Teixeira, C. Ferraris and F. Maggi (Petrobras, Bolivia) ............................................................................... 68 RAPID DATA EVALUATION OF PLAY AND PROSPECT POTENTIAL WITHIN AN OFFSHORE ACREAGE RELEASE

N. Tessen (Schlumberger, Germany) ............................................................................................................. 69 WORKFLOW INTEGRATION TO EVALUATE THE PETROLEUM SYSTEM IN SOUTH SUMATERA BASIN/INDONESIA

J.C. Tobing (Medco, Indonesia) ..................................................................................................................... 70 ADDRESSING THE CHALLENGES OF DEVELOPING SHALE RESOURCES

K. Tushingham (Schlumberger, USA) ............................................................................................................. 71 UNDERSTAND YOUR ASSETS WITH STUDIO PRODUCTIVITY TOOLS FOR PETREL

G. van der Hoff & D. Koncz (Schlumberger, Norway) .................................................................................... 72 ONGC & OVL TAP INTO INNOVATION IN INDIA VIA THE OCEAN ECOSYSTEM

N. Verma (ONGC Videsh Limited, India) ........................................................................................................ 73 INTEGRATED EXPLORATION PROSPECT GENERATION USING PETREL STRUCTURE AND FAULT ANALYSIS

P.E. Wrum (Talisman, Norway) & M. Seignole (Envision, Norway) ............................................................ 74 EFFICIENT ASSESSMENT WORKFLOWS FOR SHALE OIL & GAS RESOURCES

B. Wygrala (Schlumberger, Germany) ........................................................................................................... 75 INTEGRATING SEISMIC TECHNOLOGY & GEOLOGIC THINKING USING GEOFRAME AND PETREL IN THE EARLY EVALUATION OF RESERVOIR POTENTIALCASE STUDY ON THE JZ20-A STRUCTURE IN BOHAI BAY, CHINA

D. Zhou, Z. Zhang & J. Wang (CNOOC, China) ............................................................................................... 76

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PETROLEUM ENGINEERING PELICAN LAKE SURVEILLANCE: POLYMER FLOODED HEAVY OIL RESERVOIR

C. Alpaugh (Cenovus Energy, Canada) & M. Mohajer (Schlumberger) ......................................................... 78 DELIVERING WELL PERFORMANCE WORKFLOWS IN PETREL

M. Anderson (Schlumberger, USA) ................................................................................................................ 79 AN INTEGRATED PORTFOLIO MANAGEMENT APPROACH FOR IMPROVED BUSINESS PERFORMANCE

M. Back (Schlumberger, USA) ........................................................................................................................ 80 OPTIMIZATION OF DEVELOPMENT AND OPERATION OF UNDERGROUND GAS STORAGES WITH STATIC AND DYNAMIC MODELING

F. Bhm, J. Hllwart, A Salzwedel and H. Matthiesen (EON Gas Storage, Germany) ................................... 81 HYDROCARBON RESERVES INFORMATION MANAGEMENT SYSTEM IN TNK-BP

E. Botvinovskiy (TNK-BP, Russia) ................................................................................................................... 82 OFM 2012 - A NEW GENERATION

A. Brown (Schlumberger, USA) ...................................................................................................................... 83 OFM 2012 - A NEW GENERATION DEMONSTRATION

A. Brown (Schlumberger, USA) ...................................................................................................................... 84 AN EXPERIMENTAL BENCHMARK BETWEEN STATE OF THE ART AND NEXT-GENERATION SIMULATORS: END USERS VIEWPOINT

A.Cominelli (ENI, Italy) ................................................................................................................................... 85 ENTERPRISE PLANNING - MAXIMIZING CORPORATE PERFORMANCE WITH MERAK

D. DSouza (Schlumberger, USA) ................................................................................................................... 86 A CONCEPTUAL COMPOSITIONAL-THERMAL SECTOR MODEL FOR SUPERCRITICAL CO2 INJECTION IN NORTH KUWAIT ASSETS

M. A. Einstein (KOC, Kuwait) ......................................................................................................................... 87 EOR

A.Fil (Total, France)........................................................................................................................................ 88 PETREL RESERVOIR ENGINEERING - 2012 RELEASE HIGHLIGHTS

K. Fletcher (Schlumberger, United Kingdom) ................................................................................................ 89 NEW OFM FUNCTIONALITY: CUT-CUM METHOD

L. Frazer (ConocoPhillips, Norway) ................................................................................................................ 90 AN INTEGRATED SOLUTION TO DEVELOP UNCONVENTIONAL RESERVOIRS WITH MULTI-DOMAIN DATA AND MODELING

U. Ganguly (Schlumberger, USA) ................................................................................................................... 91 DESIGN, OPTIMIZATION AND UNCERTAINTY ANALYSIS OF COMPLEX AND MAXIMUM RESERVOIR CONTACT WELLS USING ECLIPSE AND PETREL

D. Gunasekera (Schlumberger, United Kingdom) ......................................................................................... 92 THE HESS ECONOMIC SUITE A CONTINUOUSLY EVOLVING CLOUD BASED ECONOMIC SOLUTION

B. Gurfinkel (Hess, USA) ................................................................................................................................ 93 BG GROUPS INITIAL EXPERIENCES WITH INTERSECT

S. Griffiths (BG Group, UK) ............................................................................................................................ 94 INTERSECT CHEVRON DEPLOYMENT EXPERIENCE & FUTURE PROMISE

J. Kikani (Chevron, USA) ................................................................................................................................ 95 A CASE OF INTEGRATED STUDY WITH PETREL AND ECLIPSE

W. Liu (CNOOC, China) .................................................................................................................................. 96 MERAK - ENSURING BETTER INVESTMENT DECISIONS

R. Lobrecht (Schlumberger, USA) .................................................................................................................. 97 INTEGRATED ASSET MODELER CASE STUDY VERACRUZ ASSET

J.F Martinez, A. Solis Franco & R. Ramirez (PEMEX, Mexico) ........................................................................ 98 MODELLING OF GEOTHERMAL WELL STIMULATION IN CARBONATES USING PETREL AND ECLIPSE

L. Matthes (Geoenergie Bayern, Germany) ................................................................................................... 99 SEVERNEFTEGAZPROM: USAGE OF PIPESIM HELPS TO DECREASE METHANOL USAGE

S. Medvedev (Severneftegazprom, Russia) ................................................................................................ 100

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RESERVOIR ENGINEERING PRODUCT STRATEGY T. Miller (Schlumberger, United Kingdom) .................................................................................................. 101

MAXIMIZING HEAVY OIL RECOVERY WITH ECLIPSE AND PETREL P. Naccache (Schlumberger, United Kingdom)............................................................................................ 102

SAGD RESERVOIR MANAGEMENT USING ECLIPSE THERMAL AND PETREL RESERVOIR ENGINEERING P. Naccache (Schlumberger, United Kingdom), M. Picone, H. Agustsson and A. Kjosavik (Statoil, Norway) ..................................................................................................................................................................... 103

MOVING TOWARDS DYNAMIC PLANNING T.N. Nasaruddin & R. Hashim (Petronas, Malaysia) .................................................................................... 104

FEEDBACK FROM AN EARLY INTERSECT ADOPTER E. Obi (TOTAL, France) ................................................................................................................................. 105

REPRESENTATIVE RESERVOIR MODELING OF PEMEX FIELDS USING INTERSECT R. Ortega, J. M. Amador, O. Morn, F. Garca, A. Galindo, F. Rodrguez de la Garza (PEMEX, Mexico) ...... 106

SUBSURFACE UNCERTAINTY EVALUATION OF AN OFFSHORE FIELD IN ANGOLA N. Pinheiro & N. Carvalho (Sonangol, Angola) ............................................................................................ 107

DEVELOPING UNCONVENTIONAL GAS PLAYS WITH ECLIPSE AND PETREL A.Primera (Schlumberger, United Kingdom) ............................................................................................... 108

SOFTWARE DEMONSTRATION OF THE APPLICATION OF SIS TECHNOLOGIES TO FIELD DEVELOPMENT A.Primera & D. Lucas-Clements (Schlumberger, United Kingdom) ............................................................. 109

STREAMLINE BASED GEOLOGICAL MODEL SCREENING WITH FRONTSIM AND PETREL A.Primera (Schlumberger, United Kingdom ................................................................................................ 110

THE NEW REALITY AND VISION FOR PRODUCTION ENGINEERING AND ECONOMICS S. Raphael (Schlumberger, USA) .................................................................................................................. 111

BRINGING THE POWER OF INTEGRATED ASSET MODELING ONLINE R. Sauv (Schlumberger, USA) ..................................................................................................................... 112

INTERSECT PETROBRAS EXPERIENCE T.D. Serafini de Oliveira (Petrobras, Brazil) ................................................................................................. 113

INTERSECT AND ECLIPSE RESERVOIR SIMULATION - 2012 RELEASE HIGHLIGHTS K. Shaw (Schlumberger, United Kingdom) .................................................................................................. 114

PIPESIM 2012 - A NEW GENERATION M. Shippen (Schlumberger, USA) ................................................................................................................ 115

A SOLUTION FOR BETTER HANDLING OF RESERVOIR MANAGEMENT FOR A LARGE FIELD WITH VERY LONG HORIZONTAL WELLS AND EXTENSIVE WATERFLOODING

G. Soufiah (Maersk Oil, Qatar) .................................................................................................................... 116

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OPERATIONS SAMARANG INTEGRATED OPERATIONS (IO) CONCEPTUAL DESIGN

C. Adnan Abd Razak (Petronas, Malaysia) ................................................................................................... 118 PRODUCTION & INJECTION MONITORING AND SURVEILLANCE (MYSIP) - ALIANZA CASABE

O. Agudelo, M. Amaya, G. Nunez (Casabe Alliance, Colombia) .................................................................. 119 NATIONAL PRODUCTION REPORTING AND PLANNING: A GOVERNMENT AGENCIES VISION FOR A CONSOLIDATED PRODUCTION DATABASE TO MONITOR PERFORMANCE

G.W Agusetiawan (BPMIGAS, Indonesia) .................................................................................................... 120 SCHLUMBERGER DRILLING SOFTWARE TECHNOLOGY CAPABILITIES AND VISION

A.Akamine (Schlumberger, France) ............................................................................................................. 121 AUTOMATED WELL PERFORMANCE SURVEILLANCE AND ANALYSIS

H. Al-Zaabi and A. Khatib (KOC, Kuwait) ...................................................................................................... 122 AVOCET 2012 THE SCHLUMBERGER PRODUCTION OPERATIONS SOFTWARE PLATFORM

H. Arora (Schlumberger, USA) ..................................................................................................................... 123 THE VALUE OF ONLINE ARTIFICIAL LIFT MANAGEMENT

H. Arora & A. Francis (Schlumberger, USA) ................................................................................................. 124 EFFICIENT USE OF HIGH-FREQUENCY DATA THROUGH PRODUCTION DATA MANAGEMENT SYSTEM IMPLEMENTATION

A. Creemer (Corridor Resources, Canada) & M. Mohajer (Schlumberger, United Kingdom) ..................... 125 PRODUCTION OPTIMIZATION IN PROGRESSIVE CAVITY PUMPS (PCP) USING AN EXPERT SYSTEM OF MONITORING AND DIAGNOSTICS

A.Gomez & C. Martinez (Petrocedeno, Venezuela) .................................................................................... 126 INTEGRATED SOLUTION FOR REAL TIME PRODUCTION SURVEILLANCE AND OPTIMIZATION

R. Grigorescu (Bokor Alliance, Malaysia) ..................................................................................................... 127 WELLBORE INTEGRITY GEOMECHANICS AND TRACKING WITH TECHLOG AND AVOCET

S. Kisra & C. Taylor (Schlumberger, France) ................................................................................................ 128 VX SURVEILLANCE FROM MULTIPHASE METERING DATA ACQUISITION TO PRODUCTION REPORTING OVERVIEW OF AN END-TO-END INTEGRATED WORKFLOW

C. Joly (Schlumberger, France) .................................................................................................................... 129 THE KUWAIT INTEGRATED DIGITAL FIELD JURASSIC A GAME CHANGER FOR KOC

N. Al-Mai (KOC, Kuwait) .............................................................................................................................. 130 SIAPPEP- INTEGRATED SYSTEM FOR MANAGING THE PRODUCTION IN PEP

E. Sampayo & R. Ostos (PEMEX, Mexico) .................................................................................................... 131 CASE STUDIES IN PRODUCTION OPERATIONS FOR UNCONVENTIONAL RESOURCES

S. Scillitani (Schlumberger, Malaysia) .......................................................................................................... 132 PETREL DRILLING PLANNING & OPTIMIZATION WORKFLOW

A. Seddiki (Schlumberger, United Kingdom) ............................................................................................... 133 INTEGRATING REAL-TIME DRILLING, GEOMECHANICS AND G&G INNOVATIVE SOLUTION, UNLOCKING A NOVEL DRILLING RISK MANAGEMENT TECHNIQUE

G. Silva & U. Prez (PEMEX, Mexico) ........................................................................................................... 134 PRODUCTION ALLOCATIONS DELIVERING CONSISTENCY AND VALUE TO ENGINEERING

R. Vilkki (Schlumberger, USA) ...................................................................................................................... 135

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ENABLING SOLUTIONS ASSURING HIGH QUALITY DATA IN THE STUDIO KNOWLEDGE ENVIRONMENT

V. Andresen (Schlumberger, USA) ............................................................................................................... 138 ECOPETROLS DATA MANAGEMENT VISION A CORPORATE STRATEGY TO IMPROVE E&P DECISIONS

J.H. Angarita & T. Avella (Ecopetrol, Colombia) .......................................................................................... 139 TRANSITION FROM MULTIPLE PLATFORMS TO SINGLE INTEGRATED PLATFORM TECHNOLOGY - FROM CHALLENGE TO PERFORMANCE EFFICIENCY

D. B. A. Aziz (Petronas, Malaysia) ................................................................................................................ 140 ACCELERATE KNOWLEDGE SHARING FOR BETTER QUALITY DECISIONS

F. Broussard (Schlumberger, USA) .............................................................................................................. 141 A FOUNDATIONAL APPROACH TO SUBSURFACE DATA QUALITY

M. Bryce-Borthwick (GDF Suez, United Kingdom) ...................................................................................... 142 CAIRN MAXIMIZES THE VALUE OF THEIR EXISTING TECHNOLOGY INVESTMENT WITH STUDIO

A.Chakraborty (Cairn, India) ........................................................................................................................ 143 DATA DELIVERY AS A SERVICE FOR EXPLORATION WORKFLOWS

P. Coles (Schlumberger, United Kingdom) .................................................................................................. 144 EXPLORE YOUR RESERVOIR IN THE NEW REALITY: INTEGRATION OF TOUCH TECHNOLOGY - A WORKING EXAMPLE

P. Dineen (Schlumberger, USA) ................................................................................................................... 145 IMPROVE YOUR PETRELS WELL DATA QUALITY USING THE INNERLOGIX TOOL

D. Dwihananto (Chevron, USA) ................................................................................................................... 146 ACCELERATING PETRO-TECHNICAL LEARNING IN THE E&P INDUSTRY

H. Edmundson (Schlumberger, United Kingdom) ....................................................................................... 147 MICROSOFT & SCHLUMBERGER - SEAMLESSLY UNITING THE BUSINESS AND PETROTECHNICAL WORLD

A. Ferling (Microsoft, USA) .......................................................................................................................... 148 COST EFFECTIVE DATA MANAGEMENT SOLUTIONS FOR PETREL

J.E. Fivelstad (Blueback Reservoir, Norway) ................................................................................................ 149 STUDIO ADVISOR; INTEGRATED TRAINING AND GUIDANCE WITHIN THE PETREL WORKSPACE

S. Freeman (RDR, United Kingdom) ............................................................................................................. 150 RIG SITE TO APPLICATION -END-TO-END SERVICES

P. Galinski (Schlumberger, USA) .................................................................................................................. 151 OCEAN FRAMEWORK ENABLES BORDERLESS EXTENSIBILITY OF THE PETREL E&P SOFTWARE PLATFORM

G. Gamst (Schlumberger, Norway) .............................................................................................................. 152 THE DEPLOYMENT OF A READY-TO-EXPLORE PETREL READY ENVIRONMENT AS A CRITICAL STRATEGY FOR EXPLORATION SUCCESS IN PETROLIA NORWAY

C. Guargena (Petrolia, Norway) ................................................................................................................... 153 WORKFLOW BASED TRAINING AT ARAMCO

B. Harbi (Saudi Aramco, Saudi Arabia) & X. Peltier (Schlumberger, France) ............................................... 154 WHY IMPROVE? MEASURING THE VALUE THAT DATA AND DATA MANAGEMENT DELIVER

S. Hawtin (Schlumberger, United Kingdom) ................................................................................................ 155 FROM NICHE TO CORE; SUBSURFACE SOFTWARE IN A RAPIDLY CHANGING BUSINESS

J. Hodson & A. Alexander (Centrica, United Kingdom) ............................................................................... 156 HYBRID COMPUTING: THE GAME CHANGER FOR UPSTREAM

M. Isernia (NVIDIA, USA) ............................................................................................................................. 157 A NEW OPTION FOR MANAGING DATA INTENSIVE SEISMIC WORKFLOWS

R. Johnston (Schlumberger, USA) ................................................................................................................ 158 THE NDC AS A NATIONAL SHOWCASE - IDEA TO EXECUTION

R. Johnston (Schlumberger, USA) ................................................................................................................ 159 SEISMIC DATA MANAGEMENT IN STATOIL

M. Juul (Statoil, Norway) ............................................................................................................................. 160 A NEW LOOK IN OPERATION SUPPORT CENTERS USING HYBRID VISUALIZATION SYSTEMS

D. Kedzierski (Barco, Belgium) ..................................................................................................................... 161 ASSESSING PETRO-TECHNICAL SOFTWARE TRAINING TO ACCELERATE THE VALUE OF TECHNICAL TALENT

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S. King & K. Safton (Talisman Energy, Canada) ............................................................................................ 162 HOW MAERSK EMBRACED EMERGING TECHNOLOGY TRENDS FOR EFFECTIVE DATA GROWTH MANAGEMENT OF PETROTECHNICAL WORKFLOWS

J. Knudsen (EMC, USA) ................................................................................................................................ 163 NEXT GENERATION CHANGE MANAGEMENT: BEST PRACTICES AND LESSONS LEARNED FROM A LARGE SCALE CORPORATE DEPLOYMENT OF PETREL

A.Latham & G.Smith (Chevron, USA) ........................................................................................................... 164 ENHANCED PETREL BACKUP AND RECOVERY WITH NETAPP

B. Lauritsen (Apache, USA) & O. Qazi (NetApp, USA) .................................................................................. 165 OPTIMIZED PETREL AND ECLIPSE ENVIRONMENTS AT APACHE

B. Lauritsen (Apache, USA) .......................................................................................................................... 166 THE NEW APPROACH OF TECHNICAL DATA ADMINISTRATION IN PEMEX

L. Mateos (PEMEX, Mexico)......................................................................................................................... 167 FIVE STEPS TO ASSURING SUCCESS IN PETREL DEPLOYMENTS - WORKSHOP

E. Osjord (Schlumberger, Norway) .............................................................................................................. 168 TRANSMISSIBILITY UPSCALING: A NEW INDUSTRIAL IMPLEMENTATION

P. Panfili, M. Botta, A. Cominelli (ENI, Italy) ................................................................................................ 169 NEXT GENERATION SERVERS AND WORKSTATIONS

S. Pinn (Intel, USA) & R. Bland (HP, USA) ..................................................................................................... 170 KNOWLEDGE BASED APPROACH FOR ELECTRICAL LOGS MANAGEMENT IN PEMEX DRILLING DEPARTMENT

S.T. Subiaur (PEMEX, Mexico) ..................................................................................................................... 171 A PILOT STUDY: STUDIO KNOWLEDGE DEPLOYMENT IN TURKISH PETROLEUM CORPORATION

N. Temizhan, B. N. Tademir & T. Tan (TPAO, Turkey) ............................................................................. 172 DIGITAL OILFIELD - WORKSHOP: FROM MEASUREMENTS TO DECISIONS AND CORRECTIVE ACTION

I. Traboulay (Schlumberger, USA) ............................................................................................................... 173

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GEOSCIENCES

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PETREL DRILLING - INNOVATIVE WELL PLANNING FOR GEOSCIENTISTS AND DRILLING ENGINEERS A. Akamine & C. Cuihong (Schlumberger, France) The industry today has divided well planning workflows into two separate paths with different workflows being employed by geoscientists and drilling engineers to serve different purposes. The objective of the geoscientist is to find and produce oil, while the objective of the drilling engineer is to efficiently and safely drill the well. Frequently, however, both teams pass through multiple iterations as they struggle to communicate and reconcile the geoscience and engineering objectives and requirements to create an optimal solution for the well. Petrel Drilling - the latest workflow from Petrel now uniquely combines these two workflows into one seamless process from the geophysicist, geologist, and reservoir engineer through to the drilling engineer. Providing full spatial context to drilling engineering workflows it facilitates more rapid and efficient well planning between both geoscientist and engineer. From heavy oil, to shale gas, to deepwater and conventional drilling, wells can be planned in a context that provides the information and critical insight to optimally engineer the well.

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CAVENDISH INFILL WELL DEVELOPMENT UNCERTAINTY A.Alexandru & P. Jeffs (RWE Dea, UK) The Cavendish Field is located in UKCS Southern North Sea block 43/19a (P.607) on the Northern margin of the Outer Silverpit Basin some 160 km NE of the Lincolnshire coast. The field was discovered in 1989 by Britoil exploration well 43/19-1 which tested gas from two sandstone intervals within the Namurian (Upper Carboniferous) at rates of 33 and 15 MMSCFD. The field was appraised in 1991 by BP well 43/19-2A which tested gas from Westphalian A sandstones (Upper Carboniferous) at 17 MMSCFD. An additional appraisal well drilled by Amoco (43/19a-4 & 4z) in 1996 was located downdip, on the NW flank, but failed to encounter commercial hydrocarbons and effectively delimits the field. The field development was commenced some 6 years when RWE Dea (UK) Ltd acquired a 50% interest, and Operatorship of, 43/19a in 2002. The field is named after the eminent English scientist Henry Cavendish (1731-1810) who was renowned for his experiments on separating gasses from water. The Cavendish structure lies at the NW end of the Cavendish-Caister-Murdoch Ridge and is a SW dipping rotated fault block bounded to the NE by an inverted extensional fault. The structure is dip closed down to 3,654 m tvdss to the South, West and East and sealed by a combination of an intra Westphalian shale seal and the shales and evaporites of the Permian Silverpit Formation. The Upper Carboniferous reservoir section in the pre-Permian subcrop is attributed to be of Marsdenian-Yeodonian (Namurian B to C) age passing upward into the Westphalian A. The reservoir consists of sandstones deposited in an approximately southerly prograding, fluvial-dominated deltaic setting with the source area being the Fenno-Scandian Shield to the north. The rivers are interpreted to have been of low sinuosity with a flow direction towards the south-southwest across a broad, low gradient fluvial plain. Facies distribution will have been controlled by channel avulsion and base level changes related to sea and lake level changes including periodic marine incursions that inundated the area. Distributary channel sandstones (e.g. Rough Rock) are the most important reservoir facies with subsidiary crevasse splay, crevasse channel and mouth bar sandstones also present. The sandstones are separated by shales, siltstones and coals deposited in brackish, lacustrine, inter-distributary bay, coal swamp and marine settings. Time equivalent reservoir section analogues are readily exposed in the Pennine Hills of Northern England. The principal controls on reservoir quality are facies-related depositional texture, particularly grain size and sorting, together with cementation by quartz, kandite, ferroan dolomite and the presence of illite. The better quality intervals are the medium - coarse grained, moderately - very well sorted quartz arenites of the distributary channel sandstones. They have porosities of 8-16% and permeabilities of 1-1000 mD. The crevasse-channel, crevasse-splay and mouthbar sandstones are mainly fine-medium grained and, together with the fine-medium grained distributary-channel sandstones, are moderately-well sorted and range in composition from subarkose/sublitharenite to quartz arenite. In the authigenic phase, similar levels of quartz and kandite cements are present. These facies generally display poorer reservoir quality, typically with porosities of 4-10% and permeabilities of 0.01-1 mD. Cavendish has been developed by three high angle production wells drilled through a six slot minimum facility, normally unattended installation (NUI). The first two production wells were located to twin the 43/19-1 & 43/19-2A E&A wells on the crest of the structure in order to capture the reservoir performance seen in the DSTs in those wells and minimise the risk of missing the risk of missing the target formations. The third well was located further down-flank to the south-east in a location suitable to provide additional drainage of the productive Crawshaw sands. The objective of the study was to establish a modelling workflow that can be implemented as a general standard for reservoirs in fluvial sands where the construction of a single Petrel static model is impractical as a result of the stochastic deposition of the reservoir sediments. Whilst the stochastic modelling of well performance and reserves is possible in the predevelopment phase, the use of historical production volumes and pressures to refine the Petrel model through the improvement of modelling variables will be tested. The range of potential performance of notional infill wells will be predicted from history matched models.

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The project was executed in steps, starting with screening simulation in order to determine the range of connected volume, selection of a base model, variable selection and range distribution and finalized with prediction profiles for a new infill well. Linear and quadratic proxy were built in order to understand the influential parameters on matching data, tubing head pressure and bottom hole pressure.

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WATER SATURATION MODELING IN KHAFJI CARBONATE RESERVOIR M. H. Al-Otaibi & R. Khamatdinov (KJO) Within an oil reservoir the water saturation height functions can vary strongly. In particular for carbonates these variations can be significant and difficult to estimate. The amount of hydrocarbons in a reservoir, the prediction of recoverable oil and the future plans of developing this reservoir depends on many factors, one of which is the accurate modeling of water saturation. The Khafji carbonate reservoir is a heterogeneous reservoir with two different types of oil: light oil in the top of the reservoir and heavy oil in the bottom of the reservoir. The challenge of water saturation modeling is primarily in the heavy oil zone, where conventional height function approach produces poor match against water saturation logs. Alternative method for water saturation modeling was utilized in order to obtain good match in both light oil and heavy oil columns. This presentation will describe a workflow where laboratory derived capillary pressure curves were used to establish water saturation height relationships as a function of rock type (RT). Method utilizing Flow Zone Indicators (FZI) was initially used as a basis for rock typing. Then a J-function derived from capillary pressure data for each rock type or hydraulic flow unit was used to generate saturation height function for each RT. The generated saturation undergone via several iterations to match the large span of open hole electric water saturation logs above the free-water level (FWL). The saturation profile generated by this workflow shows a good match to the measured Sw electric logs, and the calculated fluid volumes are in agreement with companys approved reserves estimation. The presentation highlights the benefits of utilization of Petrel software for the implementation of described workflow, as well as the interactivity of pre- and post-processing of the results into the required plots.

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IMPLEMENTING PETREL'S ANT TRACKING ATTRIBUTE IN DEFINING A FRACTURE CONCEPT TO IMPROVE GAS RECOVERY FROM A CARBONATE RESERVOIR T. Babi Puntarec, M. Plei & M. urekovi (INA, Croatia) This case discusses the problem of water inflow in an offshore gas carbonate reservoir and the influence of fracture networks on reservoir behavior. Gas production from the field started in 2006 and water breakthrough problems emerged on three wells in 2009, while on one well there is still no water inflow. Current recovery from carbonates reaches 30% and the intention is to analyze the possibility of intensifying gas production in order to increase the ultimate recovery. For the purpose of a better reservoir description and understanding of the possible relationship between the fracture system and water inflow, a fracture concept is created. This process entails core descriptions, petrophysical measurements, image log interpretations and advanced seismic attribute analysis within Petrel. Existing cores are not oriented and the actual position of recognized features (beds, fractures, stylolites etc.) is unknown. However, the presence of this data as well as their frequency and dip with respect to core axis is hugely valuable information. ADN image log interpretation is available for two wells. Petrophysical measurements on cores and log petrophysics are included in data synthesis. Petrel's Ant Tracking attribute enables characterization of carbonate reservoirs in terms of structural discontinuity recognition. It is analyzed on the location of each well and calibrated according to available well data. The intention is to find a correlation between detected discontinuities from this seismic attribute and reservoir characteristics. Two main orientations of discontinuity are observed; one is found mostly around the major faults and the second one is further away from fault zones. The density of discontinuities varies. The dip of extracted fault patches shows mostly vertical fractures. The fracture system is defined using the Ant Tracking attribute. A high correlation of core, log, seismic and production data is established for all wells. Vertical fractures with medium and high values from the Ant Tracking attribute detected on wells, upon reaching the GWC, certainly respond to water breakthrough. Based on these accomplished results it is suggested to avoid zones of high vertical fracture intensity as targets in carbonates. Finally, potential zones for new well locations are delineated in the field.

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COMBINING SCENARIOS AND REALIZATIONS TO FULLY EVALUATE UNCERTAINTY M. Beardsell (Schlumberger, United Kingdom) There is no more easy oil! This means when we find hydrocarbons today it is a risky business . small reservoirs, tight reservoirs, deep reservoirs the list goes on. It is therefore more important than ever to quantify the risk associated with each prospect. Practically this means evaluating the uncertainty in our reservoir models. Uncertainty in a model can be thought of as a combination of the different possible scenarios and the uncertainty within a scenario. For example there may be two possible geological hypotheses each with its own range of uncertainty on the percentage of reservoir sand. This presentation will demonstrate how Petrel can combine the scenarios and their realizations to give a combined quantification of uncertainty.

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STRUCTURAL FRAMEWORK - FAULTS, SALTS & GRIDS M. Beardsell & L. Truelove (Schlumberger, United Kingdom) 3D reservoir modeling is now an accepted standard in the process of understanding a subsurface prospect. The Petrel structural framework has been introduced in the last two years to address the need to accurately represent increasingly complex geological structures with their associated grids to enable seamless consumption of these reservoir models by reservoir simulators. This presentation will show how Petrel 2012.1 can model even the most complex structures and illustrates new ways to interpret multi-z geobodies. The presentation will be in the form of a live Petrel demonstration.

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STRUCTURAL MODELING REVISITED - EXCITING NEW DEVELOPMENTS IN BUILDING STRUCTURAL FRAMEWORKS IN PETREL M. Beardsell (Schlumberger, United Kingdom) 3D reservoir modeling is now an accepted standard in the process of understanding a subsurface prospect. As the era of easy oil is now past, increasingly complex geological structures are being modeled, which push the limits of current software functionality. Petrel 2010.1 saw the beginning of a new modeling standard introducing true, seamless, integration of geological modeling with geophysics. In addition, new methods of grid generation mean that we now send complex reservoir models to increasingly powerful reservoir simulators. Petrel 2012.1 focuses on the most challenging and structurally complex reservoirs by introducing new workflows that allow simultaneous interpretation of palaeo-depositional and deformed (present-day) domains, the introduction of conformable layer-reconstruction methodologies and unique new ways to interpret multi-z geobodies. Traditionally, many of these workflows have been the remit of specialist users, however, they are now fully integrated in Petrel. This allows G&G users to create the most structurally complex reservoir models, apply reconstruction techniques and represent the most complex geobodies before passing these seamlessly through to traditional property modeling and reservoir engineering workflows.

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10 YEARS OF OCEAN IN SHELL E&P; FROM LOBSTERS AND SHELLFISH TO A MARINE ECOSYSTEM R. Bennett (Shell, Netherlands) The presentation will look at how Shell have sailed the Ocean*, from the early efforts on the Ocean framework in late 2002, to the first deliverables from Petrel/Ocean in 2006. From there a look at a number of the technologies we have developed in Shell over the past 5 years from our early efforts on generation of synthetic seismic and fault transmissibilities to more recent work, such as developing new windows in Shell Petrel and implementation of new technologies to support advanced Shell workflows.

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INTEGRATION OF OUTCROP, REMOTE SENSING AND HISTORICAL DATA IN PETREL FOR PROSPECT GENERATION IN A DATA POOR, MOUNTAINOUS TERRAIN, ONSHORE GULF OF SUEZ, EGYPT A. Clare (Apache, Egypt) The onshore East Ras Budran Exploration Concession is located in the eastern rift shoulder of the Gulf of Suez. Over much of the concession pre-rift rocks are well exposed in a rugged hyper-arid terrain that has severely restricted the acquisition of conventional subsurface data. Acquisition of high resolution remotely sensed datasets (50 cm resolution 4 band satellite imagery and a derived 5m resolution digital elevation model) has provided the impetus to delineate comprehensive surface geological and structural maps. Historical records from the early 1900s documenting prior mapping and drilling activity have also provided a great data source for exploration in an otherwise data deprived environment. Integration of these disparate data sources in Petrel has enabled structurally robust, detailed geological prospect models to be constructed. In addition, acquisition of a single 2D seismic test line on one prospect not only enhanced the local subsurface understanding but confirmed the existing geological models accuracy.

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SOME PERSPECTIVES ON GRIDS, PROPERTIES AND FLUID FLOW C. Daly (Schlumberger, United Kingdom) In this presentation we will review gridding from the perspective of reservoir modelling and fluid flow. For quite some time, the industry standard has been to work with corner point grids built to conform to a structural model with the optional use of local grid refinement around wells. This gridding approach is well understood in terms of property population, upscaling and flow simulation. It is known to work very well in the majority of situations. However, it does have the drawback that handling very structurally complex reservoirs can prove to be difficult. An alternative, promoted by some researchers and service companies, is to use stair-stepped gridding. In this approach, the structural modelling component is somewhat decoupled from the construction of the grid. While stair stepped grids have some strong points, such as the robustness of the two point flux approximation, they by no means have a clear cut advantage over pillar grids. A particular issue for these grids is that the transformation needed to do property modelling (which always needs to be done on a flat depositional space) is more complex than for the pillar grid. We will briefly review the issues associated with this. Finally, we consider an approach under development which couples the gridding to the structural modelling more closely through the expedient of constructing the grid in the depositional space. This looks to be a promising new approach to the issue of gridding both for property population and for reservoir simulation.

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REGIONAL PLAY FAIRWAY EVALUATION IN AREAS OF LIMITED SEISMIC DATA AVAILABILITY A WORKFLOW EXAMPLE FROM ABU DHABI J. Efstathiou (Statoil, UAE)

A major strength of Petrel is the ability to quickly and efficiently interpret 3D seismic data. By using a multitude of seismic attributes spectacular images of depositional systems can be produced to guide exploration and development programs. Alternatively Petrel can also be used for regional play fairway analysis in areas with limited seismic data. An example is presented from Abu Dhabi where a detailed regional geomodel was produced solely from published literature maps and available well top information. It should be emphasized that an understanding of the local sequence stratigraphy is fundamental to building a geologically sound model. The example presented covers the entire onshore and offshore Abu Dhabi and comprises 46 layers from present day surface to Top Basement. Using this model a quick look charge and migration evaluation was performed using the Petroleum Systems Quick Look Plugin (PSQL). A play fairway analysis for the Arab (Jurassic age) and Thamama (Early Cretaceous age) reservoir is also presented.

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PETREL FRONTIER EXPLORATION - BRAZIL WESTERNGECO MULTICLIENT DATA A. Estrada (Schlumberger, Brazil) In recent years, Brazil has drawn a lot of interest due to huge pre-salt carbonate reservoirs discovered in the Santos Basin. Today the Brazil Equatorial Margin is generating new excitement, since it is analogous to recent oil field discoveries on the West African coast. Join us for a virtual tour of the Brazil, WesternGeco Multiclient seismic data available in ready-to-run Petrel projects, and see how this combination provides the ideal solution for prospect identification. A 2000 km composite seismic section extending across multiple basins, covering two hemispheres and three UTM zones will show the scalability of Petrel for regional interpretation work. Multiple geophysical data such as pre-stack seismic, CSEM and gravity & magnetics will be integrated in order to help reduce exploration risk. Finally, we will analyze a Petroleum systems model created with PetroMod, which will identify several potential leads in the Potiguar Basin.

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PETREL IN STATOIL EXPLORATION - RATIONALE AND IMPLEMENTATION A. Groth (Statoil, Norway) Petrel E&P Software Platform was introduced to seismic interpreters in Norsk Hydro in 2002, and was used extensively in Business Development projects. In 2006, Petrel was chosen to replace GeoFrame applications in Norsk Hydro, and a full implementation was initiated. Since the Norsk Hydro / Statoil merger in 2007 Petrel has mostly been used in international assets and business development projects. In 2011 it was decided to increase the number of Petrel licenses, and NCS teams as well as International asset teams were encouraged to select the tool most suitable to meet their requirements in seismic interpretation. In this talk, key features are presented to describe the basis for Petrels success as a seismic interpretation tool in Statoil. Examples from a variety of NCS and international assets collected since 2002 are presented. Important factors such as versatility and flexibility as a seismic interpretation tool have been critical in efficient exploration in a company such as Statoil, with a large number of assets and activities worldwide. The presentation focuses on why Petrel facilitates users to extract and visualize geological features of a 3D seismic survey in a manner superior to what could previously be achieved using the more traditional seismic interpretation tools. Accurate comparisons are presented, and a total of six contributing factors are identified to demonstrate some of Petrels key capabilities.

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PETROPHYSICS IN SHELL FROM STANDARDISING TOOLS AND WORKFLOWS TO THE ROLE OF PROPRIETARY SOFTWARE DEVELOPMENT J. Grtsch, A. van der Graaf, M. Kraaijveld & P. Zivkovic (Shell, Netherlands) Shell is making significant investments into its software portfolio via proprietary developments as well as via collaborating with 3rd parties in its efforts to drive technology and to standardise subsurface tools used for global E&P operations - Petrophysics is one example for this. In recent years Shell has replaced its proprietary petrophysical application LOGIC with the MS-Windows based Techlog package via close collaborations with Techsia (now SIS). Recall has been Shells standard database solution for log data for some time, but was recently also upgraded under Shell steer to cater amongst other functionality for core and geomechanical data. In order to improve data workflows Shell has financed and managed the development of the Recall Techlog connector and developed the Techlog - Petrel connector in-house (now available from SIS via Ocean Store). Only together, these tools enable seamless management of large petrophysical, geological and geomechanical data sets, particularly in times of rapidly increasing numbers of wells drilled as a result of unconventional field development. All this is part of the drive to modernise but also to standardise tools and workflows within the Group. Following global standardisation of these workflows, a next step in this evolution is Shells effort in driving proprietary customisations forward. These global deployments comprises application support, proprietary Petrophysics help files, managed Python script libraries and now also the first proprietary plug-in modules. In order to facilitate plug-in developments, Shell is collaborating closely with SIS on development of the new Ocean for Techlog SDK, similarly as done earlier for the Ocean for Petrel. Main objective is to enable rapid technology productisation and deployment internally.

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PETREL WELL SECTION A MULTIDISCIPLINARY CANVAS PROVIDING INSIGHTS FOR OPTIMUM FIELD DEVELOPMENT T. Hartman & H. Wang (Schlumberger, USA) In order to get the most value from field development it is important to be able to analyze what is going on in various aspects of a field, whether it is monitoring a well in real time, or understanding why a well is not producing as predicted. The well section canvas is an integral part of optimizing field development. Enabling integration of various types of information from different domains including wells, seismic, geological models, simulation results, and other E&P data, geoscientists can better understand the geological challenges to make more informed decisions.

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CONTINENTAL SCALE PLAY EVALUATION WITH A SHARED EARTH MODEL IN 3D: A LIVE DEMONSTRATION IN PETREL 2011 N. Harvey (Neftex Petroleum Consultants, UK) Using Neftex Earth Model content and the functionality of Petrel 2011* we are able to build 3D geological models at a scale appropriate for regional exploration. Petrel 2011 and associated Ocean Store software allow us to load and manipulate all the data required to carry out play evaluations at a continental scale, and offers an environment where all data and interpretations are fully integrated and can be viewed in both the depth and geological time domains. This not only improves efficiencies, but adds increased insight into the geological basis for petroleum system and play fairway analysis. We present a live demo of a 3D Earth Model of the Alaska, Canada and Greenland region in Petrel 2011. This portion of our global Neftex Earth Model is presented in the geological time domain and encompasses all strata from basement to surface, and covers an area of c. 5,000 by 9,000 km with a grid size of 20km. Based on our robust global sequence stratigraphic framework and a dataset based on publically available information, the model is divided into 236 sequence stratigraphic layers corresponding to key 1st, 2nd and 3rd order depositional sequences. By incorporating seismic and other data from the NPRA we show how the model can be refined and developed in the geological depth domain to provide a rapid assessment of play potential of Cretaceous sand plays on North Slope Alaska. The resulting Earth Model allows identification and visualisation of the extent of key reservoirs, seals and source rocks, greater understanding of their stratigraphic and geometrical relationships, and rapid assessment of their quality and maturity, all within a global geological framework. Common risk maps can then be generated and combined for any layer within the model, and for any play element. By continually updating the shared Earth Model behind the evaluation in the light of new data and interpretations it should be possible to keep the play assessment evergreen.

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PRESTACK IN PETREL - A NEW INTEGRATED DIMENSION E. Hoekstra & M. Herrara (Schlumberger, Norway) As the industry is increasingly exposed to higher risk exploration, such as sub-salt plays, and evermore challenging reservoir characterization studies (stratigraphic traps, unconventional reservoirs), asset teams are responding with stronger data and cross-discipline integration. Over the last few years integration with non-seismic measurements (Electro-magnetics EM, Gravity, Magnetics) and richer data representations (attribute space computations, analysis and visualization) have been extensively used. With WesternGeco technology in Petrel, prestack information can now be fully embraced in an integrated environment. This benefits depth imaging studies, where multi-measurement and multi-domain integration is critical to build structural velocity models in full geological and petroleum system context. Prestack data is also critical for seismic conditioning workflows (improving the seismic stack), AVO reconnaissance, and reservoir characterization studies. The presentation will show the values of working with prestack data in a fully integrated environment: extending conventional interpretation workflows towards seismic data processing and quantitative interpretation studies.

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QUANTITATIVE INTERPRETATION WORKFLOWS - GAINING MOMENTUM IN THE INDUSTRY AND IN PETREL E. Hoekstra & G. van der Hoff (Schlumberger, Norway) One of todays challenges in the E&P industry is the exploration and development of carbonate and unconventional reservoirs, including heavy oil, shale gas, tight reservoirs and fractured reservoirs. This requires the ability to produce accurate and increasingly complex reservoir and rock physics models. Quantitative interpretation of rock properties plays an essential role in this, linking seismic and reservoir properties. Following the recent introduction of stochastic and simultaneous inversion workflows, WesternGeco continues to integrate its proven leading edge technologies around AVO, inversion and rock physics workflows into Petrel. In the presentation we will demonstrate the strengths of using these latest AVO and inversion workflows in the Petrel E&P software platform.

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STRUCTURAL AND STRATIGRAPHIC RECONNAISSANCE E. Hoekstra & M. Herrara (Schlumberger, Norway) Reliable definition of trapping geometry, and reducing the uncertainty in the identification of stratigraphic traps, are critical elements in finding and quantifying oil and gas reserves. This presentation will demonstrate the most advanced technology to detect large-scale features in the subsurface geology to aid an accurate structural interpretation. The methods reviewed will focus on utilization of random lines in combination with the latest suite of structural attributes, which the user can operate in an interactive mode. Both the parameterization of the attributes, and the visual blending techniques, provides for fast and efficient seismic reconnaissance. GPU enabled volumetric visualization and extraction techniques aid in detailing the stratigraphical contexts in the datasets.

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REGIONAL GRAVITY MAGNETIC INVERSION WITH PETREL AND OCEAN FRAMEWORK D. Huang (Jilin University, China) SinoProbe, a mega national project in China, has been initiated to enhance understanding of deep structures of lithosphere in China since 2008 by means of various exploration methods. The data sets, including gravity and magnetic (GM) data from regional area and long seismic profiling, will be employed to represent huge area and ultra long and deep information of the targets, in which most seismic data is recorded more than 20 seconds and regional GM data obtained from thousands kilometers zones. A concept of all-in-one geological interpretation which is successfully applied in O&G industrial can be inherently utilized in SinoProbe to construct geophysical model with contributions from velocity-like model deduced from seismic data and from density and magnetic-like models from GM data. Petrel and Ocean, powerful software application and development platform created mostly for seismic data by Schlumberger with great reputation in the O&G industry, have a great potential for user to extend the utilization to deal with much deeper geophysical phenomenon. In SinoProbe study, none seismic data interpretation utilities has to be enhanced by plug into Petrel-like workflows which can be implemented by Ocean API and SDK and C# programming. A geophysical property model can be created by means of GM data constraints inversion with making use of seismic or borehole data to eliminate the none uniqueness problem. In return, boundaries of the model derived from the inversion can be applied to refine the structure of the model by seismic data, which way is able to strengthen Petrel functionality and imaging of the deep target with GM data involved. A testing result shows promising in which Moho interface is roughly outlined at about 10-12 second. Thanks to SinoProbe-09-02 for providing data for the study.

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SCALING THE POWER OF PETREL R. Kannan (Schlumberger, USA) Improve your performance and productivity within Petrel with the Studio E&P Knowledge environment. For teams who need scalability in their Petrel workflows, who need to use the most up to date information and companies who want to manage their Petrel data in one place, Studio Knowledge for Petrel will take your interpretation management and workflows to the next level providing a scalable, multi user solution for your asset teams and company.

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UNDERSTANDING FAULT RISK IN EXPLORATION PROSPECTS CASE STUDY OF USING THE PETREL RDR PLUG-IN, DANISH CENTRAL GRABEN M. Kent (Maersk, Denmark) In 2011, Maersk Oil contracted the reprocessing of seismic data for the entire Danish Central Graben. The Pre-stack Depth Migration (PSDM) data was reprocessed by WesternGeco, to help mitigate any risk associated with opportunities within the Maersk Oil operated study area. An initial screening of the seismic highlighted that the most interesting prospects would rely heavily on the ability of seismic scale faults to hold back a significant hydrocarbon column. Using Petrel 2011, in conjunction with the Structural and fault analysis (RDR) plug-in, a complete structural analysis of the identified fault system was performed. The work required careful interpretation and analysis of the 3D fault system characteristics. This was accomplished by constructing a structural framework of the fault system and assessing the likelihood of fault seal using the Structural and fault analysis (RDR) plug-in. This methodology allowed for the results to be integrated into a standard exploration risk and volume assessment workflow, enabling critical decision making on each prospect. This presentation will describe the workflow used; challenges faced and shed

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A NEW ERA IN SEISMIC INTERPRETATION - INTERACTIVE SEISMIC RECONSTRUCTION FOR GEOLOGICALLY CONSISTENT INTERPRETATION J. Klinger (Schlumberger, Norway) A geological model is always only as good as the structural and stratigraphic interpretation that has been used to build it. The QC steps in order to validate it are crucial and involve the interpreter either investing intense effort to picture the tectonic and depositional history and verifying that it is geologically feasible; or building a model and evaluate if the fault contacts and the facies distribution are plausible. Both solutions are generally very time consuming; but what if the user could, automatically and interactively, QC the veracity of their interpretation? This now becomes possible thanks to a unique and innovative integration of a geomechanical engine within the seismic interpretation workflow. The user is now able to seamlessly un-fault and un-fold one or several horizon(s). This has two immediate advantages. The first one enables the validation of the fault framework, from a geomechanical point of view; the second is the direct use of the fault network in a reconstruction process to isolate and remove the structural component from the stratigraphic interpretation. The latter allows the user to track horizons in a deformation-less environment, providing a more powerful and user friendly experience to provide far greater confidence in their interpretation.

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CONVENTIONAL GEOLOGICAL INTERPRETATION FASTER, MORE ACCURATE MAPS TO BETTER UNDERSTAND HYDROCARBON PLAYS M. Koley & H. Wang (Schlumberger, United Kingdom) Subsurface geological maps are the most important and widely used outputs to explore for and develop hydrocarbon reserves. Hence when preparing subsurface maps, it is essential to use all the available data, evaluate all possible interpretations and use accurate mapping techniques. Conventional geological interpretation workflows in Petrel not only allow the integration of geological and geophysical interpretations to derive accurate subsurface maps, but also enable rapid updating of maps such as structural or reservoir summation as new wells are drilled in the field or an existing well interpretation is modified. Instant access to accurate subsurface maps enables timely operational decisions for efficient reservoir management.

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ENHANCING THE LIFE OF A RESERVOIR BY MAKING THE RIGHT WELL PLACEMENT DECISIONS M. Koley & H. Wang (Schlumberger, United Kingdom) The goal in reservoir characterization is to establish a reservoir model based on explicitly modeling the known heterogeneities (conditioning to well observations) and using statistical algorithms to systematically simulate the spatial distribution at interwell locations. Heterogeneous reservoirs, however, can easily lead to serious discontinuities in production from well to well, whether caused by sedimentological or structural factors or both. Detailed reservoir descriptions incorporating different types of heterogeneities are needed to quantify the uncertainty and possibly reduce economic risk. The presentation is aimed at showing how geological models defined in Petrel by geostatistical distribution of well data and conditioned with seismic inversion results in a better understanding of the reservoir properties. Furthermore a detailed structural analysis enhances the knowledge of the reservoir compartmentalization and together with fluid flow simulation results help in establishing optimum well locations to effectively sweep hydrocarbons from the reservoir.

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INTEGRATING DIFFERENT GEOSCIENCES & ENGINEERING DOMAINS FOR BETTER FIELD DEVELOPMENT DECISIONS IN A CARBONATE RESERVOIR M. Koley (Schlumberger, United Kingdom) The extremely challenging task of characterizing naturally fractured carbonate reservoirs requires the construction of representative reservoir models that can correctly handle both fracture and matrix systems and their interaction. These models must accurately predict fluid flow to deliver better production performance. Data integration from multiple disciplines is critical. This presentation illustrates the workflow used to build a unified fractured reservoir model using Petrel to address these challenges; and how the multidisciplinary interpretations and models can be utilized interactively to optimize field development plans.

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SEISMIC GEOMECHANICS: A NEW DIMENSION FROM SEISMIC TO DRILLING N. Koutsabeloulis (Schlumberger, United Kingdom) Seismic geomechanics is the technology that provides a bridge between the seismic and drilling, utlizing both seismic well-based data and operator experience. Delivering 3D mud weight cubes is the latest innovation for well placement and drilling optimization, especially as drilling costs are escalating for delivering exploration wells and ERD wells in deep and ultra-deep waters.

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MULTI-SCALE 3D GEOLOGICAL MODELLING OF AN OUTCROPPING ANALOGUE TO BETTER UNDERSTAND AND PREDICT FACIES GEOMETRY AND RESERVOIR QUALITY/DISTRIBUTION IN THE SUBSURFACE: THE CASE HISTORY OF OMBRINA OIL FIELD RESERVOIR AND ITS MAIELLA MOUNTAIN ANALOGUE L. Lipparini (Medoilgas, Italy) The use of outcropping geological analogues is proven to be a robust approach to collect data, ideas and geological understanding, as well as integrate and improve the reservoir modeling of the subsurface. In this respect, Medoilgas Italia Spa, the Sapienza University of Rome and Schlumberger SIS are collaborating in a scientific project dedicated to the 3D modeling of Carbonate Oligo-Miocene Ramp deposits of the Maiella mountain outcrops, where a well-exposed example of a homoclinal carbonate ramp do allow to study in detail the depositional geometries and facies distribution. The first 3D modeling exercise was carried out with the objective of reconstructing the geometrical and facies relationships observed in the outcrops and existing in the subsurface, including a simplified 3D fault model: starting from traditional field observation (geological mapping, stratigraphic, sedimentologic and microfacies analysis), a workflow was defined to create the 3D model of the area (using Petrel software), combining various spatial data sets such as geological mapping, measured stratigraphic sections, sedimentary facies and geometries, through the following steps: Digital project building: all available data loaded and georeferenced. Topographic 3D model: DEM loaded, refined and integrated with geological transects and maps. Outcrop Stratigraphic Sections to verticalized Pseudo-wells. 3D Geological Mapping: transferring observed geological limits and faults, formation boundaries and point of

interests including dip/azimuth information into the digital model. Geometrical and structural model: combined outcrop data directly used to build a corner-point geocellular 3D

grid, incorporating faults observed in the field and surfaces, in accordance to identified stratigraphic framework.

Facies Model: facies relationships have been modeled inside the 3D geocellular grid, mainly using the object modeling methodology and deriving the main geometrical parameters from outcrop observations and the conceptual model.

The work performed, and the final Petrel 3D digital model, help in better understand the relationships between facies and the architectural framework at the basin scale and provide the base to refine and improve the modeling of subsurface analogue reservoirs: in particular some modeling solutions have been already successfully adopted during reservoir modeling of the Ombrina Mare Oligo-Miocene oil reservoir.

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3D GEOSTEERING AND MWG (MODELLING WHILE GEOSTEEING) FOR COMPLEX RESERVOIR IN SAUDI ARABIA USING PETREL S. Logan & M. Al Hamad (Saudi Aramco, Saudi Arabia) Introduction In todays oil and gas industry, aligning the knowledge of many disciplines into one platform is the prevailing direction of change. Integrated operations; collaborative workflows; seamless technologies: combining forces achieves greater efficiency, cleaner data handling, and streamlined processes. Advanced earth-modelling tools, such as Petrel* unified seismic-to-simulation software, mean users can gather and unify all the relevant data in a single application and quickly update their models. As more and more horizontal and multilateral wells are drilled within Saudi Arabia to drain reserves from thinner and more inaccessible targets, asset teams find that they have smaller margins for error to work with. The 3D Geosteering using Petrel* and modelling-while geosteering workflow is ideally suited to challenging environments, where continuous monitoring and model updating are essential to steer the well within the targeted reservoirs. The Workflow 3D Mapping

Migrating GMD Geological Model To Petrel Modeling & updating

Data Verification Updating Formation tops Loading off set wells Layering identifications Sector modeling

Well planning

Proposing & loading well plans Synthetic Logging

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INTEGRATION OF FACIES ANALYSIS AND GEOSTATISTICS IN THE PETREL MODELING OF SOUTH SWAN HILLS DEVONIAN REEF RESERVOIR S. Longfield, H. Slayman, S. Charbonneau & A. Seto (Penn West Exploration, Canada) OBJECTIVES The South Swan Hills reservoir is located in west-central Alberta, Canada. Discovered in 1957, this field, together with other Devonian carbonate reef complexes in the area, is a major source of oil in western Canada. Higher than expected oil recoveries from the field suggested an inaccurate STOIIP estimate. A geocellular Petrel model of the reef and platform was completed to accurately ascertain the STOIIP, and to optimize future development of the reservoir by identifying upswept oil zones for infill drilling. PROCEDURES The first stage of the modeling was a full field core study to determine facies types, depositional environments and the stratigraphic architecture of the reef. The core was logged over a year and a half and used to create 2D facies probability maps. These were used in Petrel in conjunction with a geostatistical algorithm to distribute each facies within the inter-well regions. This allowed the uncertainty inherent in facies mapping to be factored into the modeling, while at the same time honouring well data and facies relationships. A porosity model was generated using a geostatistical algorithm, which honored the porosity log data at the wells, the porosity distribution within each facies and, through the use of variograms, any geospatial trends. Uncertainty in the true facies, porosity and fluid saturation distribution, as well as in the oil/water contact, was then quantified in order to determine a range of possible STOIIP. RESULTS The P50 outcome or realization was selected, giving a STOIIP of 1.3 billion barrels. This volume is significantly larger when compared to previous volume estimates of the field. CONCLUSIONS A geostatistical approach to the modeling of a reservoir and estimation of volumes is a relatively new approach which may seem incompatible with traditional facies mapping. In this case, integrating the two methods has enabled an accurate estimation of STOIIP to be made. Of equal importance is the Petrel models ability to quantify and reduce uncertainty in future drilling and production operations.

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REGIONAL VELOCITIES MODELING FOR THE PALEOCANAL DE CHICONTEPEC WITH PETREL J.G. Lopez (PEMEX, Mexico) The aim of this study is to obtain a regional velocity model to integrate geological and geophysical information applying a stratigraphic methodology of the area. It is important to mention that the area of interest covers about 5600 km2 and many existing velocity models were generated locally and for those areas where no 3D seismic exist such models will be difficult to control because not seismic velocities were considered only well logs and VSP, in some cases the velocity functions were copied from one well to another. For these reason we have decided to generate a regional velocity model to help us in the mitigation of the drilling risk associated to the time to depth conversion. The only velocity models available were generated from the 3D seismic but those are separated from each other covering just a few areas of the entire area of study. The beginning of the project was only using some seismic data such as Check Shots and VSPs to start with 180 functions from validated data and 8 regional grids where used. The use of velocities like a property gave us as a result a more precise velocity model. Chicontepecs geology is very complex, then we thought in the use of main horizons along with the stratigraphy in a geo-celular model to propagate the velocities and doing a correction between the real data and the calculated data to obtain a velocity model closer to the real data. Many difficulties were faced in this project, there was not many digital data, a complex geology, different surveys, problems with data processing, old or incomplete logs, few VSPs; all these maked this regional modeling a great challenge. This methodology was also applied to other projects one for a project with an extension of 500,000 km2 in the Gulf of Mexico and the other one was for an specific area for a reservoir characterization project. The results in all these were very satisfactory with the predicted depths.

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IMPROVED STRUCTURAL UNDERSTANDING OF THE NATURALLY FRACTURED HOTON FIELD, UK SOUTHERN NORTH SEA, USING A GEOMECHANICAL APPROACH IN PETREL L. Maerten (Schlumberger, France) The Permian Hoton tight gas field lies below Zechstein salt on the eastern limb of the West-Sole salt structure in the UK sector of the Southern North Sea. The Hoton anticline is part of a structure formed by compressional inversion of earlier extensional faults. Additional to being sub-salt, the seismic imaging quality of the reservoir is further compromised by challenging overburden velocities. Production into the Hoton wells is dominated by high permeability intervals interpreted to be vast fracture networks. Models of the structural evolution of the Hoton field form the basis for the prediction of fracture networks. Owing to the compromised seismic image these models are highly uncertain, and thus several possible scenarios were tested and evaluated for their consistency. In this presentation we illustrate how geomechanical technology originally developed by Igeoss and now integrated inside Petrel are used to test various models of the tectonic evolution of the Hoton structure. We show how the technology is used to check the consistency of seismic interpretations within these models; and how, in order to constrain productivity of a potential infill well, the most appropriate forward model of the structure is used to constrain discrete fracture models of the naturally-occurring fractures.

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PETREL IN A GEOFRAME ENVIRONMENT QUICK ACCESS WITH MINIMAL CHANGE MANAGEMENT G. Martayan (Schlumberger, France) Virtually all GeoFrame customers utilize Petrel to complete the exploration workflow and to help reduce risk in their evaluations. GeoFrame users can now quickly and easily initiate a Petrel project and workflows from an existing GeoFrame interpretation project. With GeoFrame 2012, GeoFrame seismic applications (IESX and Charisma) now support the standard Petrel seismic volume format ZGY. This allows a customer to have one single common seismic volume when using either GeoFrame or Petrel. With new advances connecting Petrel directly and remotely to GeoFrame, Petrel users can now access the 3D and 2D seismic volumes without transferring them. A diverse set of interpretation data types (3D and 2D seismic interpretation, grids, and well data) can be accessed in minutes to quickly start Petrel risk-reduction workflows. Several data types can also be brought easily back into GeoFrame where the advanced new data snapshot technology of SNAPR assures a secure data environment.

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SAVING TIME WITH DEPTH H. Menkiti (WesternGeco, USA) An accurate velocity model is key to producing the best possible subsurface image. In todays depth imaging workflows, iterative tomographic updates & associated remigrations consume significant time. Reducing this cycle-time means quicker access to the final depth image as well as a better understanding of the spatial risk elements of subsurface reflectors. Through their localized seismic imaging workflow, leveraging the Petrel E&P platform & Omega seismic processing software, WesternGeco has enabled rapid decision making - to help you save time and money.

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IMPACT OF STRIKE-SLIP FAULT DISPLACEMENT OF HYDROCARBON SOURCE ROCK DEPOCENTER ON OIL FIELD DISTRIBUTION OF SALINAS BASIN, CALIFORNIA THROUGH 3D BASIN AND PETROLEUM SYSTEM MODELING T.A Menotti, S. A. Graham & J.M. Moldowan (Stanford University, USA)

The Salinas Basin, California contains a petroleum system that boasts the giant San Ardo oil field, which has been producing heavy oil since the 1940's. Yet despite its relatively long-standing history as a steady source of oil production, many aspects of the basin's geologic and petroleum system history are still poorly understood. We aim to provide plausible explanations for the unusual bimodal distribution of oil fields in the Salinas Basin: one half-billion barrel field versus six

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MANAGEMENT OF STRUCTURAL UNCERTAINTIES WITH PETREL T. Modiano (TOTAL, Nigeria) A good assessment of geosciences uncertainties is of highest importance in the E&P decision process. Uncertainties not only impact the decision to develop or not, but also the appraisal strategy, development sequence and data acquisition program. Structural uncertainties impact the geometry of horizons and faults which govern, with the fluid contacts, the envelops of hydrocarbon pools and so the Net Gross Rock Volume (NGRV). The objective of the presentation is not to discuss about the assessment of uncertain parameters but to present different approaches to assess the NGRV uncertain distribution and link it with the other geosciences uncertainties. In this presentation, we discuss about variations around a base case geometry. Management of scenarios, as picking alternatives for example, is another problem, although each one can be considered as a different base case. The uncertainty associated with faults and horizons in depth can be divided into two origins: a picking uncertainty and a velocity uncertainty. If picking uncertainty of the different horizons can be considered as independent, uncertainty attached to depth conversion correlates between horizons because they share common velocity intervals. This point is very important and ignoring it can lead to produce unrealistic horizon geometries and overestimate the uncertainty range of reservoir interval thickness. Although only one of them was really designed for addressing this topic, Petrel offers several ways to assess structural uncertainties: Uncertainty workflow manager Velocity modeling and depth conversion Local model update The presentation will present the different approaches and discuss the advantages and drawbacks of each one in terms of results, complexity, performance and integration in the whole uncertainty assessment process.

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RISING TO THE CHALLENGES OF THE WELLBORE - THE SIS VISION FOR TECHLOG B. Moss (Schlumberger, United Kingdom) The presentation explores the way in which Techlog covers many domains with interests in wellbore scale data analysis. We open with Techlog being firmly positioned as the wellbore software plat