NEW REGIONAL RESERVOIR PLAY CHARACTERIZATION PROGRAMS

IN TEXAS & NEW MEXICO

at the Bureau of Economic Geology

Principal Investigators: Stephen C. Ruppel & Robert G. Loucks

• GEOLOGICAL SYNTHESIS OF THE PALEOZOIC OF THE PERMIAN BASIN (PBGSP)

• CARBONIFEROUS GAS SHALE RESOURCES IN TEXAS (CGSR)

GEOGRAPHIC SCOPE

Permian Basin study area

Barnett shale study area

PROGRAM GOALS

• Produce a detailed, comprehensive history of Paleozoic depositional and reservoir systems in the Permian Basin

• Create spatially integrated data bases of depositional, stratigraphic, lithologic, and petrophysical properties

TARGET RESOURCES

• Development Target: : 23 billion barrels of mobile oil remaining in existing reservoirs

• Exploration Target: 3.5 billion barrels of undiscovered oil and NGL resources

VALUE

• Provide fundamental stratigraphic and reservoir-specific data in a readily accessible and useable format.

• Integrated data will decrease the risk and increase the efficiency of exploitation

• Integrated data will define new opportunities for drilling.

• Integrated data will form the basis for new engineering approaches and completion practices

SOURCE DATA

• Reservoir studies

• Cores

• Wireline logs

• 3D & 2D seismic

• Outcrop studies

• Published reports

• Company data

• NEW STUDIES

DELIVERABLES

• Text: Written synthesis of history, stratigraphy, facies, structural history, and reservoir development in Permian Basin.

• Data: ARC/INFO GIS-based regional structure maps, facies maps, cross sections, core descriptions and data, outcrop descriptions and sections, core data, reservoir data, production data, publications, etc for each play.

TEXT

• First-year report on depositional history and stratigraphy of the Cambrian-Permian

• Incremental play reports as completed.

DELIVERABLE DATA

• Regional structure and facies maps

• Regional cross sections

• Core descriptions and data

• Core photographs

• Reservoir cross sections

• Reservoir models

• Outcrop models

• Depositional facies models

• Seismic models

• Production data

• Publications

• Geothermal gradient maps

• Organic geochemistry data

• Fracture data

• Biostratigraphic data

• Production data

• Rock mechanics data

PBGSP Barnett/Woodford

REGIONAL STRUCTURE MAPS Woodford Structure

FACIES MAPS

.

SA

GB 1

Top GB

GB 2

GB 3

Mcknight

Holt/Leonardian 8

Holt/Leonardian 7

Glorieta

7680' 3260'4050'2120'3630'40504050'4840'8100'10940'5260'

5500

5000

4500

4000

3500

Eastland 39

5500

5000

4500

4000

3600

Gulf 835

5500

5000

4500

4000

3600

Forest 1

5500

5000

4500

4000

3600

Eastland 1

5500

5000

4500

4000

3600

Arco 9

5500

5000

4500

4000

3600

Arco 11

5500

5000

4500

4000

3600

Arco 51

3700

4000

4500

5000

Arco 87

4500

4000

5000

5500

Arco 14

5900

5800

5700

5600

5500

5400

5300

5200

5100

5000

4900

4800

4700

4600

4500

4400

4300

4200

4100

4000

3900

3800

3700

A 13

5500

5000

4500

4000

3600

Arco M-1

3700

4000

4500

5000

5500

ARCO CompanyRuth G. Palmer #13

FosterEctor County, TX, Elevation = 2955'

Sec. 45, BLK 42, T-1-S

ARCO CompanyMarcus Gist #14

JohnsonEctor County, TX, Elevation = 2957'

Sec. 44, BLK 42, T-1-S

ARCO CompanyJ. L. Johnson "O" #8

North Cowden CanyonEctor County, TX, Elevation = 2976'

Sec. 42, BLK 42, T-1-S

ARCO CompanyJ. L. Johnson "B" #51

Johnson & Johnson (Holt)Ector County, TX, Elevation = 2989'

Sec. 37, BLK 43, T-1-S

ARCO CompanyJ. L. Johnson "B" #87 WIW

JohnsonEctor County, TX, Elevation = 3000'

Sec. 37, BLK 43, T-1-S

ARCO CompanyJohnson Deep Unit #9Johnson (Holt-Penn)

Ector County, TX, Elevation = 2998'Sec. 39, BLK 43, T-1-S

ARCO CompanyJohnson Deep Unit #9Johnson (Holt-Penn)

Ector County, TX, Elevation = 'Sec. 34, BLK 43, T-1-S

ARCO CompanyJ. L. Johnson M-1

JohnsonEctor County, TX, Elevation = 3024'

Sec. 40, BLK 43, T-1-S

Forest Oil CompanyJ. L. Johnson Jr. #1

WildcatEctor County, TX, Elevation = 3043'

Sec. 41, BLK 43, T-1-S

Eastland CompanyJohnson #39

DonnellyEctor County, TX, Elevation =

Sec. 37, BLK 44, T-1-S

Gulf Oil CompanyC. A. Goldsmith #835

WildcatEctor County, TX, Elevation = 3080'

Sec. 38, BLK 44, T-1-S

ARCO CompanyJohnson Deep Unit #11

Johnson (Holt)Ector County, TX, Elevation = 3001'

Sec. 38, BLK 43, T-1-S

OXY Johnson Unit

REGIONAL CROSS-SECTIONS

•Sequence stratigraphic framework•systems tracts•bounding surfaces/unconformities

•Unit correlations•Facies correlations

•Unit correlations•Facies correlations•Payzone continuity•Wireline attributes

OUTCROP MODELS

DEPOSITIONAL MODELS

RESERVOIR MODELS

CORE DESCRIPTIONS

CORE PHOTOGRAPHS

Ooid/skeletal Lime Grainstone

Separate Vug Porosity

Porosity: 23.1 %; Permeability: 17 md

Sample Porosity Grain Remarks

Number From To Horz (md)Horz - 90

(md) Vert (md) %Density (gm/cc) Vertical Fracture

1 6,720.0 6,721.0 0.0900 0.0700 0.0200 4.9 2.84002 6,721.0 6,722.0 0.6000 0.2200 0.0700 3.3 2.7700

6,722.0 6,723.03 6,723.0 6,724.0 0.1300 0.1200 0.0300 2.2 2.83004 6,724.0 6,725.0 0.1100 0.1000 0.0500 3.0 2.83005 6,725.0 6,726.0 0.0700 0.0500 0.0400 1.9 2.80006 6,726.0 6,727.0 1.3000 1.0000 0.0400 3.7 2.80007 6,727.0 6,728.0 0.0500 0.0400 0.0100 6.2 2.8400 Vertical Fracture Present8 6,728.0 6,729.0 39.0000 1.0800 23.0000 3.8 2.86009 6,729.0 6,730.0 0.0500 0.0500 0.0010 6.7 2.8400

10 6,730.0 6,731.0 0.0900 0.0900 0.0500 6.7 2.840011 6,731.0 6,732.0 0.0400 0.0300 0.0200 1.1 2.830012 6,732.0 6,733.0 0.0300 0.0300 0.0200 2.0 2.830013 6,733.0 6,734.0 0.0900 0.0500 0.0200 1.3 2.840014 6,734.0 6,735.0 0.0500 0.0500 0.0100 4.3 2.850015 6,735.0 6,736.0 0.0700 0.0500 0.0300 3.0 2.820016 6,736.0 6,737.0 0.1800 0.1800 0.0400 3.3 2.830017 6,737.0 6,738.0 0.0800 0.0600 0.0200 2.0 2.820018 6,738.0 6,739.0 0.0500 0.0500 0.0200 1.9 2.810019 6,739.0 6,740.0 0.1700 0.1400 0.0500 2.4 2.800020 6,740.0 6,741.0 0.1000 0.0800 0.0200 2.6 2.780021 6,741.0 6,742.0 0.0500 0.0500 0.0300 1.0 2.820022 6,742.0 6,743.0 0.0700 0.0600 0.0200 1.4 2.820023 6,743.0 6,744.0 0.1100 0.0400 0.0700 1.9 2.830024 6,744.0 6,745.0 0.0900 0.0600 0.0400 2.6 2.810025 6,745.0 6,746.0 0.2700 0.0600 0.0300 3.1 2.840026 6,746.0 6,747.0 0.0200 0.0100 0.0010 9.3 2.840027 6,747.0 6,748.0 0.0200 0.0200 0.001 5.0 2.840028 6,748.0 6,749.0 0.0600 0.0300 0.001 8.3 2.840029 6,749.0 6,750.0 0.0400 0.0400 0.001 11.5 2.830030 6,750.0 6,751.0 2.8000 0.3600 0.001 10.9 2.840031 6,751.0 6,752.0 62.0000 20.0000 0.0100 10.8 2.820032 6,752.0 6,753.0 0.5700 0.0200 0.001 4.0 2.800033 6,753.0 6,754.0 0.0900 0.0900 0.0200 2.2 2.8200

Depth (feet) Permeability

CORE ANALYSIS DATA

F2G

San Andres Formation

F3

Sun Moss # 1574200

4300

4400

4400

4500

4600

Unocal Moss Unit # 9-17

4500

4600

4700

4500

4700

4600

4700

4600

4500

4800

4700

4600

Unocal Moss Unit # 16-14 Unocal Moss Unit # 8-12 Unocal Moss Unit # 6-16 Unocal Moss Unit # 6-20

4650'

4600'

4550'

4500'

4700'

Hdgrnd

4750'

4700'

4650'

4600'

4550'

4500'EFF1

Fo

W E

F1F2G

F

H

H

Grayburg4BGrayburg4AGrayburg3Grayburg2

Grayburg1Guadalupian13

E

F3

3,700 ' 2,700 '

F0

3,500 ' 3,400 ' 2,300 '

FINAEmmonsUnit

UNOCALMossUnit

PhillipsSouth CowdenUnit CoreSan Andres/GrayburgDepositional Axis

South Cowden Field

Clear ForkPlatform Margin

FINAColbertUnitTidal FlatSiltstone/SandstoneFusulinid WackestonePeloid Wackestone-Packstone

Mudstone

Intraclast Packstone-GrainstonePeloid-Ooid Grain-Dominated Packstone-Grainstone

ExplanationFCorrelation MarkersSequence BoundaryHigh-frequency Cycles

0 1000 20000 300 600FtMeters

60402000Ft00

10M V.E. = 12.5 XScale

Bureau ofEconomicGeology

Queen FormationGuadalupian16Ex E0

Ex

RESERVOIR CROSS-SECTIONS

•Cycle stratigraphic framework•Facies stacking patterns•Reservoir architecture

•Payzone continuity•Wireline attributes

Yates

Queen

Grayburg

U San Andres

NW SE

Clear Fork

500 ms

1000 ms

1 mile

L

M

Lowstand wedgeGlorieta platform margin

Grayburg reservoir

SEISMIC SECTIONS

PRODUCTION DATA

Ellenburger

Kerans, Charles, 1988, Karst-controlled reservoir heterogeneity in EllenburgerGroup carbonates of West Texas: American Association of P etroleumGeologists Bulletin, v. 72, no. 10, p. 1160–1183.

Kerans, Charles, 1989, Karst-controlled reservoir heterogeneity and an examplefrom the Ellenburger Group (Lower Ordovician) of W est Texas: TheUniversity of T exas at Austin, Bureau of Economic Geology Report ofInvestigations No. 186, 40 p.

Kerans, Charles and L ucia, F. J., 1989, Recognition of sec ond, third, andfourth/fifth order scales of cyclicity in the El Paso Group and their relationto genesis and architecture of Ellenburger reservoirs, in Cunningham, B.K., and Cromwell, D. W., eds., The lower Paleozoic of West Texas andsouthern New Mexico—modern exploration concepts: Permian BasinSection, Society of Economic Paleontologists and MineralogistsPublication No. 89-31, p. 105–110.

PUBLICATIONS

DATA DELIVERY FORMATS

• Written summary reports on each play– Digital & paper delivery

• Digital data (GIS ARC-View)– CD format– Online web-based (ARC-IMS)

FUNDING• DOE: $800k

• Industry Sponsors

• Bureau of Economic Geology Leveraging– RCRL– STARR

• Current Funding Level: ~ $400k /year

BENEFITS OF SPONSORSHIP

• Exclusive priority access to data products and deliverables for minimum of 1 year.

• Access to data digitally as it becomes available.

• Input as to focus and deliverables of project.

• Direct access to project staff.

• Attendance at annual project meetings.

PROJECT START DATE AND TERM

• Start: January 1, 2005

• Initial term: 3 years

• Continuation based on funding availability.

COST OF SPONSORSHIP

• Basic Sponsorship: $19,000 (annual)

• Two-year Sponsorship: $37,000

• Three-year Sponsorship: $54,000

PROJECT STAFF

• BEG Full-time Staff: Steve Ruppel (PI) Bob Loucks (PI, STARR)

Sedimentologists - Stratigraphers - 8PetrophysicistStructural Geologist Reservoir engineers - 2

• UT Students

• Collaborating Staff (non-BEG)BiostratigrapherOrganic Geochemist

PROJECT CONTACTS

• Steve Ruppel– 512-471-2965– Stephen.ruppel@beg.utexas.edu

• Bob Loucks– 512-471-0366– Bob.loucks@beg.utexas.edu