xxx ISBN: 978-1-61782-393-0

SPE/IADC Drilling Conference and Exhibition 2011

Amsterdam, The Netherlands 1-3 March 2011

Volume 1 of 2

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TABLE OF CONTENTS

VOLUME 1

SPE/IADC 138001 High Performance Wellbore Departure and Drilling System for Accessing New Target ..................................................................................................................................................................................... 1

Charles Dewey, Shantanu Swadi, Shelton Alsup, Praful Desai

SPE/IADC 138852 Novel Solution to Cement Strength Retrogression ........................................................................... 10Sarah Gibson

SPE/IADC 138922 Rigorous Identification of Unplanned and Invisible Lost Time for Value Added Propositions Aimed at Performance Enhancement .......................................................................................................... 17

Hermann Spoerker, Gerhard Thonhauser, Eric Maidla

SPE/IADC 138960 Reducing Safety Incidents by Lifting Single Joints of Drill Pipe with a New Design of Elevator ............................................................................................................................................................................ 26

Alan Law, Jon Turnbull, Thomas Redlinger, Melissa Frilot, Gary Brady

SPE/IADC 139122 Wellbore Positioning Practices and Challenges in Africa ................................................................ 36Gary Skinner

SPE/IADC 139161 Psychological Effect on HSE Behaviour - New Initiative from a Drilling Team ............................ 44Mohannad Al-Mehailani, Khaled Al-Hindi, Ashis Gohain, Saleh Muqeem, Safi Akhtar, Abdulwahab Al-Rakdan

SPE/IADC 139403 Continuous Motion Rig. A Detailed Study of a 750 Ton Capacity, 3600 m/hr Trip Speed Rig .............................................................................................................................................................................. 52

Mads Grinrod, Helge Krohn

SPE/IADC 139408 Approaching the Technical Limit: Mature Basin Benefits from Influx of Advanced Drilling Rigs/Tool Technology ............................................................................................................................................ 62

Hugo Marquez, Marcelo Crovetto

SPE/IADC 139410 A Historical Review of Drill Pipe Capabilities and the Triggers for Change ................................. 74Thomas Redlinger, John McCormick

SPE/IADC 139493 Emergency Severance of Casing for Deepwater Operations: A Design Build and Test Programme of Novel Technologies............................................................................................................................. 86

N. Richmond, N.J. Bamford, A.S. Bamford

SPE/IADC 139511 Drill Pipe Cutting At Ultra High Pressure: A Proven Capability For Stuck Pipe Hazards............................................................................................................................................................................... 102

John “J.W.” Segura

SPE/IADC 139534 Preliminary Test Results of Nano-based Drilling Fluids for Oil and Gas Field Application ......................................................................................................................................................................... 112

Md. Amanullah, Mohammad K. Al-Arfaj, Ziad Al-Abdullatif

SPE/IADC 139623 Drilling Fluid Design Enlarges the Hydraulic Operating Windows of Managed Pressure Drilling Operations ............................................................................................................................................ 121

Doug Oakley, Lee Conn

SPE/IADC 139628 Challenging Multilateral and Completion Design for a Deepwater Well in Italy: Decision Support through Risk Analysis ......................................................................................................................... 128

C. Repetto, C. Sanasi, S. Di Vincenzo, C. Cordeddu, G. Ricci Maccarini, M. Tufo, J. Michelez, N. Rossi

SPE/IADC 139683 New Technology, Which Enables Closed, Looped Drilling (MPD) from Mobil Offshore Drilling Units (MODU)...................................................................................................................................... 139

Jan Atle Andresen, Tom Askeland

SPE/IADC 139708 Wellbore Stability Modeling and Real-Time Surveillance for Deepwater Drilling to Weak Bedding Planes and Depleted Reservoirs.............................................................................................................. 145

James Lang, Shuling Li, Jincai Zhang

SPE/IADC 139762 Intergranular Cracking of Oil Field Tubular Components Resulting from the Tempering Process ............................................................................................................................................................ 163

Srinivasa Koneti, Samit Gokhale, Thomas Wadsworth

SPE/IADC 139766 Casing Burst Stresses in Particulate-Filled Annuli: Where’s the Cement?.................................. 176Issa A. Kalil, Albert R. McSpadden

SPE/IADC 139769 Coating Optimized for Abrasion and Fatigue Resistance for Use in Extreme Well Geometries.......................................................................................................................................................................... 195

John McCormick, Joe Le, Chad Evans

SPE/IADC 139773 Overcoming Challenges for Drilling High-Dogleg-Severity Curves.............................................. 204S. Janwadkar, O. Hummes, A. Peter, M. Freeman, S. Privott, D. Greene, C. Loesel

SPE/IADC 139785 Fatigue-Based Tubular Connection Performance for a CSS Operation....................................... 222S-Y. Hsu, K.H. Searles, A.W. Aylor

SPE/IADC 139817 One Sack Rapid Mix and Pump Solution to Severe Lost Circulation........................................... 232Dennis K. Clapper, Joseph J. Szabo, Steven Spence, Mike Otto, Brian Creelman, Tom G. Lewis Jr., Gary McGuffey

SPE/IADC 139824 Lateral Buckling – The Key to Lockup ........................................................................................... 244Robert F. Mitchell, Tore Weltzin

SPE/IADC 139826 Breakout Torque: Hypothesis, Investigation, and Evaluation....................................................... 274J.N. Brock, A. Muradov, S.S. Youngson, C. Brooks, M.L. Payne

SPE/IADC 139829 Casing Design with Flowing Fluids .................................................................................................. 296Robert F. Mitchell

SPE/IADC 139830 Axial Excitation as a Means of Stick Slip Mitigation - Small Scale Rig Testing and Full Scale Field Testing ..................................................................................................................................................... 304

Ian Forster

SPE/IADC 139839 Mitigating Stick-Slip In Deep Drilling Based On Optimization Of PDC Bit Design ................... 332G. Pelfrene, H. Sellami, L. Gerbaud

SPE/IADC 139841 A Systematic Approach to Performance Drilling in Hard Rock Environments .......................... 344Mark Dykstra, Barry Schneider, Jose Mota

SPE/IADC 139842 Drilling Performance Improvement in the Haynesville Shale Play ............................................... 360Rich Billa, Jose Mota, Barry Schneider, Mike Weissman

SPE/IADC 139845 Can Safety Improvement Increase Drilling Efficiency?................................................................. 366David Pavel, Said Boutalbi, Brian Grayson

SPE/IADC 139848 Integrated Drilling Optimization and Downhole Drilling Dynamics Enables PDC Bits to Drill in the Colorado Region of the San Juan Unconventional Gas Basin ........................................................ 374

Tony Pink, Lisa Harrell, Danny Perez, John Carrico, Paul Mackinnon

SPE/IADC 139849 Real-Time Optimization of Drilling Parameters by Autonomous Empirical Methods .............................................................................................................................................................................. 386

W.L. Koederitz, W.E. Johnson

SPE/IADC 139855 The First Successful Short-Radius Re-Entry Well in Deep Gas Drilling in Saudi Arabia ................................................................................................................................................................................. 402

Shaker Al-Khamees, Hope Okwa, Jaywant Verma, Sukesh Ganda

SPE/IADC 139870 Operator’s Recommendation for a Uniform Dull Grading System for Fixed Cutter Hole Enlargement Tools.................................................................................................................................................... 412

L. Ulvedal, J.D. Enterline, D. Scott, S. Radford, J. Clinkscales, L. Shale, M. Croxton

SPE/IADC 139888 Condition Based Maintenance: A New Early Leak Detection System for Mud Pumps ................................................................................................................................................................................. 420

Age Kyllingstad, Pal Jacob Nessjoen

SPE/IADC 139893 Underreamer Dynamics .................................................................................................................... 433B. Meyer-Heye, H. Reckmann, G-P. Ostermeyer

SPE/IADC 139897 Increased Rate of Penetration Through Automation ..................................................................... 442J. Dunlop, R. Isangulov, W.D. Aldred, H. Arismendi Sanchez, J.L. Sanchez Flores, J. Alarcon Herdoiza, J. Belaskie, J.C. Luppens

SPE/IADC 139909 Remotely Operated Top-Drive Casing-Running System Combined with New Cement Head Enables Major Oil Company to Improve Zonal Isolation and Cement Bonding with Enhanced Safety and Efficiency in Caspian Sea ............................................................................................................. 453

Tracy Cummins, Egill Abrahamsen, Ian Killoh

SPE/IADC 139910 Rebuilding a Tool Joint: Best Practices to Avoid Failure .............................................................. 458Grant Pettit, Samit Gokhale

SPE/IADC 139922 The Next Generation Top Drive and Lessons Learned from the TDX-1250 ................................ 466Jay Pickett, Justin Saski, Robert Luher, Andre Cantrell, Brett Wallihan

SPE/IADC 139925 Controlling Well Path Trajectory with Rate of Penetration Modulation ..................................... 474S.R. Farley, C.A. Maranuk, B.J. Hronek, C. Jasper

SPE/IADC 139926 Fluid Hammer Drives Down Well Costs.......................................................................................... 484Robert Staysko, Brenda Francis, Brad Cote

SPE/IADC 139929 First Application of Heat-Activated, Rigid Rapid-Fluid System in Deepwater Environment in Mexico Helps to Cure Severe Loss of Circulation: A Case History ................................................... 490

Jorge Castro, Luis Solis, Javier Urdaneta, Victor Arreola

SPE/IADC 139932 Drilling Highly Depleted Formations with Engineered Particle Non-Aqueous Fluids (EP-NAF): South China Sea.................................................................................................................................. 497

Michael R. Niznik, Adela Lawrence, Sabine C. Zeilinger

SPE/IADC 139939 Collapse Prediction Methodology for the Solid Expandable Tubulars ......................................... 506J. Agata, E. Tsuru, M. Sawamura, H. Asahi, H. Tsugihara

SPE/IADC 139943 Automation of the Drilling Fluid Mixing Process, Field Experiences and Development from North Sea Operations........................................................................................................................ 513

Ove Kvame, Bjarne Blom-Jensen, Yngve Bastesen, Jan Erik Sandvik

SPE/IADC 139944 On Interaction Buckling in Platform Conductors .......................................................................... 523A.J. Adams

SPE/IADC 139953 Remote Communication Techniques from Surface to Downhole Tools........................................ 545P. Joseph, L.E. Mendez, D. Dolyniuk

SPE/IADC 139954 Exploration Drilling Campaigns - Optimized Drilling Performance Using Drilling Consortium Management.................................................................................................................................................. 550

Bjorn Thore Ribesen, Kjell Arild Horvei, Tove Magnussen, Arild Saasen, Tormod Veiberg

SPE/IADC 139956 Field Experience with an Active Stick-Slip Prevention System ..................................................... 562Pal Jacob Nessjoen, Age Kyllingstad, Piero D’Ambrosio, Isaac S. Fonseca, Alexis Garcia, Bruno Levy

SPE/IADC 139989 Conventionally Undrillable Open Fractured Reservoir, Drilled Using Managed Pressure Drilling Technology ........................................................................................................................................... 572

I. Hamoudi, K. Kartobi, H. Qutob, M. Arnone, F. Torres, N. Barakat

SPE/IADC 139996 Development of an Innovative Model-Based Stick/Slip Control System....................................... 585Jens Rudat, Dmitriy Dashevskiy

SPE/IADC 140010 Passive Inflow Control Devices and Swellable Packers Control Water Production in Fractured Carbonate Reservoir: A Comparison with Slotted Liner Completions .................................................. 597

Kim Sam Youl, Widayat Suhana, Rhandy Regulacion, Thomas Jorgensen

SPE/IADC 140011 Analytical and Experimental Backward Whirl Simulations for Rotary Steerable Bottom Hole Assemblies .................................................................................................................................................... 605

D.R. Stroud, L.A. Lines, D.J. Minett-Smith

SPE/IADC 140024 Achievements and Lessons Learned from a 4-Year Experience of Extended Reach Drilling in Offshore Dagang Oilfield, Bohai Basin, China ............................................................................................. 624

Rongchao Cheng, Haige Wang, Lingzhan Zou, Mingxin Zhou, Dong Sha, Chuandu Liu

SPE/IADC 140028 “Understanding XLOTs”.................................................................................................................. 638Alexander Heger, Hermann Spoerker

SPE/IADC 140044 Results of July 15, 2010 IADC Stick-Slip Mitigation Workshop ................................................... 649K.A. Womer, D.R. Torkay, G. Villanueva, T. Geehan, J. Brakel, D. Pirovolou, D. Reid, M. Killalea

SPE/IADC 140045 Real Time Pore Pressure Prediction Using LWD And Borehole Seismic Data Assists In Mitigating Risk On An Appraisal Well Offshore Malaysia .......................................................................... 661

Aqil Ahmed, Leo Anis, Scott Fey, Riasat Hussain, Helmi Rahim, Tan Boon Hua, Azlan Mohaideen

SPE/IADC 140051 Challenges Of Drilling In The Chilean Altiplano ........................................................................... 671Roberto De Angelis, Matthew Holdeman, Gary Pidcock, Warren Levy, Horacio Figueroa, Raul Lyon

VOLUME 2

SPE/IADC 140069 Exploration of the Interaction Between Drill Bit Gauge Profile and Point-The-Bit Rotary Steerable Systems.................................................................................................................................................. 679

L.A. Lines, M.L. Larronde, D.R. Stroud

SPE/IADC 140070 Maximizing Core Recovery in Lower Tertiary Through Drilling Optimization Service and Intelligent Core Bit Design ........................................................................................................................... 698

Peter Guarisco, James Meyer, Rohit Mathur, Ian Thomson, Jeremy Robichaux, Clifford Young, Edgar Luna

SPE/IADC 140073 Advanced Reservoir Navigation System and Drilling Technology Maximizes Productivity and Drilling Performance in the Granite Wash – US Midcontinent ....................................................... 706

S. Janwadkar, M. Thomas, S. Privott, R. Tehan, L. Carlson, W. Spear, A. Setiadarma

SPE/IADC 140086 Thermally Compensated Leak Detection Results in Significant Blow Out Preventer (BOP) Testing Efficiencies............................................................................................................................... 719

C.M. Franklin, T.L. Sargent, C.R. Brown, G.W. Owen, S. Griffith, J.W. Osmond, R. Cully

SPE/IADC 140113 Kick Tolerance Misconceptions and Consequences to Well Design .............................................. 730Helio Santos, Erdem Catak, Sandeep Valluri

SPE/IADC 140114 Interoperability: An Enabler for Drilling Automation and a Driver for Innovation .................. 740Andreas Sadlier, Moray Laing

SPE/IADC 140117 Cutting the Cost of HP/HT Cleanups: Novel High Density Cleanup Package Enables Brine Reclamation and Reduces Costs .............................................................................................................. 752

Michael Richmond, Alistair Hutton, Marcus Davidson, Siv Howard, Bob Frost, Stuart Leon, Marcel Jaspars

SPE/IADC 140133 Surface Hole Casing While Drilling — A Review of Five Years Experience in Gabon, West Africa ........................................................................................................................................................... 758

B. Askew, A. Phillips, J.H. Wingate

SPE/IADC 140144 Dynamic Aspects Governing Cement Plug Placement in Deepwater Wells ................................. 768P.E. Aranha, C.R. Miranda, J.V.M. Magalhaes, G. Campos, A.L. Martins, A. Braghini, M.F. Naccache

SPE/IADC 140145 Well Construction Hydraulics in Challenging Environments ....................................................... 782A.L. Martins, A.F.L. Aragao, P.E. Aranha, M.G. Folsta, A.T.A. Waldmann

SPE/IADC 140159 Analysis of Tubular Failures in Riserless Environments ............................................................... 794Robello Samuel, Rishi Adari, John Gradishar, A. Willie Iyoho

SPE/IADC 140172 Anatomy of the “Best In Class Well”: How Operators Have Organised the Benchmarking of their Well Construction and Abandonment Performance ............................................................... 805

Peter Rushmore

SPE/IADC 140181 Case Histories of Recent Field Results for Advancement in Milling of Cemented Tubulars ............................................................................................................................................................................. 824

Mohammed A. Haq, Jerry Fisher, Tom Bailey

SPE/IADC 140183 A Comparison of Collision Avoidance Calculations ....................................................................... 830Shola Okewunmi, Andrew Brooks

SPE/IADC 140192 Improving the Quality of Ellipse of Uncertainty Calculations in Gyro Surveys to Reduce the Risk of Hazardous Events like Blowouts or Missing Potential Production through Incorrect Wellbore Placement .......................................................................................................................................... 836

Roger Ekseth, John Weston, Adrian Ledroz, Barry Smart, Astrid Ekseth

SPE/IADC 140205 Quality Assurance of Wellbore Stability Analyses ......................................................................... 851Bernt S. Aadnoy

SPE/IADC 140211 Which Material is Less Resistant to Buckling: Steel, Aluminum or Titanium Drill Pipe? ................................................................................................................................................................................... 862

S. Bensmina, S. Menand, H. Sellami

SPE/IADC 140224 Documentation of Risk and Cost-reducing Potential by Utilizing an Automatic Supervision and Decision Support System During Drilling a Challenging HPHT Well .............................................. 873

Rolv Rommetveit, Sven Inge Odegard, Christine Nordstrand, Knut S. Bjorkevoll, Mikkel Fjeldheim

SPE/IADC 140228 Case History: Lessons Learned From Retrieval of Coiled Tubing Stuck by Massive Hydrate Plug When Well Testing in an Ultra-Deep Water Gas Well in Mexico.......................................................... 883

Victor Vallejo Arrieta, Aciel Olivares Torralba, Pablo Crespo Hernandez, Eduardo Rafael Roman Garcia, Claudio Tigre Maia, Michael Guajardo

SPE/IADC 140231 FMECA and Commissioning - Guidelines to Effectively Deliver Technology and Systems for Successful Drilling Automation.................................................................................................................... 891

John de Wardt, Tom Moore, Andy McKenzie

SPE/IADC 140241 Application of Tandem Rotary Steerable-Positive Displacement Motor Bottom Hole Assembly in Drilling Horizontal Wells: Case Study of Three Eastern Siberia Wells ......................................... 913

Zimuzor Okafor, Andrew Buchan, Dmitry Diyanov, Sheldon Rawlins, Grigoriy Zhadan, Yuriy Nikitenko

SPE/IADC 140242 Predicting Salt Leaching During Drilling and Cementing Operations ......................................... 936M.G. Folsta, A.L. Martins, R.F. Lomba, W.F. Cardoso Jr., C.A. Simao, I.A. Sidi, C.E. Dannenhauer

SPE/IADC 140244 Pre-perforated Liner Design and Coiled-Tubing Acidizing of Maximum-Reservoir-Contact (MRC) Wells Offshore Abu Dhabi ................................................................................................... 946

John Jorden, Alfred Jackson, Stu Keller, Chris Shuchart, J. Oliverio Alvarez, Scott Quigley

SPE/IADC 140245 Turbodrill BHA Solves Build Section Challenges, Anadarko Basin ............................................. 956Craig Staley, Greg Bruton, Mark Natanael, Jason Kelley, Ross Milne

SPE/IADC 140249 Acquiring Formation Pressure Measurements in Challenging Borehole Conditions .................. 965M. Piber, S.C. Ash, J. Hemsing, R.S. Kuchinski

SPE/IADC 140255 Development of an Automated System for the Rapid Detection of Drilling Anomalies using Standpipe and Discharge Pressure ...................................................................................................... 974

Don Reitsma

SPE/IADC 140260 The Successful Evolution of an LWD Rotary Steerable System for Air Drilling ......................... 983Chris Hartley, Denis Weisbeck, Scott Robert, Mark Smith

SPE/IADC 140261 Liner Drilling Technology as a Mitigation to Wellbore Ballooning - A Successful Case Study in the Gulf of Mexico Shelf............................................................................................................................ 990

Steven M. Rosenberg, Deepak M. Gala

SPE/IADC 140262 Application of a New Method for Predicting Down Hole Loading of Tubulars During Expansion ............................................................................................................................................................ 1000

Merle E. Evans, John R. Setterberg

SPE/IADC 140265 Extended Reach Drilling - Offshore California. Extending Capabilities and Improving Performance .................................................................................................................................................. 1025

Neil R. Armstrong, Andrew M. Evans

SPE/IADC 140266 Deepwater DP Drilling Rigs on Shallow Water Wells, Can it Work?......................................... 1038Raj Kadiyala, Alan Whooley

SPE/IADC 140267 Integrated Downhole Isolation Valve and Managed Pressure Drilling To Facilitate Development of Sour Fractured-Limestone Gas Reservoir in East Java, Indonesia ................................................. 1050

Ganesha Rinku Darmawan, Nathaniel Buntu Sangka, Surjanto Djoko Susilo, Steve Nas, Julmar Shaun S. Toralde, Andi Eka Prasetia

SPE/IADC 140274 Merging Multilateral and Casing Exit Technologies to Increase Wellbore Junction Reliability by Reducing Rig and Openhole Exposure Times ....................................................................................... 1059

Christopher Guidry, Charles Pleasants, Joseph Sheehan

SPE/IADC 140277 New Technologies to Enhance Performance of Section Milling Operations that Reduces Rig Time for P&A Campaign in Norway ....................................................................................................... 1076

Eamonn Scanlon, Garry Garfield, Siri Brobak

SPE/IADC 140281 A New Player Entry to the Deepwater Market ............................................................................. 1086Tim Ouwerkerk

SPE/IADC 140289 ECD Management and Pore Pressure Determination with MPD Improves Efficiency in GOM Well .................................................................................................................................................. 1097

P.D. Fredericks, L. Smith, K.J. Moreau

SPE/IADC 140297 Mist Drilling in Low-Pressured, Highly Fractured Carbonates Improves Well Test Results and Fracture Identification from Image Logs.................................................................................................. 1113

Norlizah Mohd Nor, Maria Balzarini, Mustafa Siddiqui

SPE/IADC 140298 Automated Real-time Drilling Hydraulics Monitoring ................................................................ 1118P. Zoellner, Gerhard Thonhauser, M. Lueftenegger, Hermann Spoerker

SPE/IADC 140304 A Cost-Effective Alternative Method of Deploying Perforating Devices in High-Angle Wells....................................................................................................................................................................... 1128

Ryan Hord, Thad Scott, Fred Weeks, Marcel Budde

SPE/IADC 140305 An Aggressive Approach to Reducing Failure-Driven Non-Productive Time in Onshore Drilling Operations: Expanding the Quality Program.................................................................................. 1140

Jeff Everage, Shawn Altizer, Juan Veloz, Fred Kellow

SPE/IADC 140317 Extension of Gauge Length to Reduce Vibrations and Improve Drilling Performance ..................................................................................................................................................................... 1149

Gregory F. Smyth, Andrew M. Evans, Jonathan Babb, Neil Bolivar

SPE/IADC 140318 Hibernia Well Overcomes Challenges to Further Extend Worldwide Extended Reach Drilling (ERD) Envelope...................................................................................................................................... 1158

Miriam Woodfine, Neil Bolivar, Sarah Trend, Steinar Ottesen

SPE/IADC 140320 Delivering Performance in Shale Gas Plays: Innovative Technology Solutions......................... 1169Franklin Baez, Steve Barton

SPE/IADC 140324 The Continuous Measurement and Recording of Drilling Fluid Density and Viscosity............................................................................................................................................................................ 1185

A. Miller, R.C. Minton, R. Colquhoun, M. Ketchion

SPE/IADC 140326 Effective BHA Design and Vibration Modeling for Improving the Quality of Sonic Measurements .................................................................................................................................................................. 1189

Crispin Chatar, Matthew Blyth

SPE/IADC 140327 Hydrocarbon Reservoirs Where Proactive Geosteering is Most Likely to Succeed................... 1207Douglas Seifert, Roland Chemali, Michael Bittar, Gary Althoff, Amr Lotfy

SPE/IADC 140331 Case History of Innovative Plug and Abandonment Equipment and Processes for Enhanced Safety and Significant Cost Savings ............................................................................................................. 1217

Delaney Olstad, John McCormick

SPE/IADC 140332 Understanding and Managing Bottom Hole Circulating Temperature Behavior in Horizontal HT Wells - A Case Study Based on Haynesville Horizontal Wells ........................................................... 1224

Keith Trichel, John Fabian

SPE/IADC 140333 How to Accelerate Drilling Learning Curves ................................................................................ 1244Eric Van Oort, James Griffith, Barry Schneider

SPE/IADC 140337 New Sampling and Testing-While-Drilling Technology, A Safe, Cost-Effective Alternative........................................................................................................................................................................ 1254

Mark Proett, Sami Eyuboglu, Jim Wilson, Tommy Solbakk

SPE/IADC 140347 Testing the Combination of High Frequency Surface and Downhole Drilling Mechanics and Dynamics Data under a Variety of Drilling Conditions ..................................................................... 1268

Bill Lesso, Maja Ignova, Firas Zeineddine, James Burks, Brent Welch

SPE/IADC 140353 Cutting Carbonates — New Technology Delivers Step Changes in Bit Performance ............... 1281R.W. Weeden, S. Williams, F. Lugo, P. Gaduan

SPE/IADC 140357 Natural Gas as a Fuel in Drilling Operations-Analysis, Testing and Implementation ................................................................................................................................................................ 1298

David G. Hill, Jeff Johnson, John Bell, Nathan Mayer, Hugh Giberson, Ryan Hessler, Will Matthews

SPE/IADC 140365 Low Force Shear Rams: The Future is More................................................................................ 1314Frank Springett, Eric Ensley, Darrin Yenzer, Scott Weaver

SPE/IADC 140375 Enabling Technology Optimizes Dynamic Mud Weight Management and Reduces Well Cost Associated with Drilling Operations ............................................................................................................. 1323

Thomas L. Barbato, A. Serkan Cenberlitas, Deepak M. Gala

SPE/IADC 140391 Managing New Technology Introduction to Provide Maximum Benefit .................................... 1339Andy Hatch, Nicol Shepherd, Peter Diepeveen, Grant Affleck

Author Index