Silo Field Niobrara Reservoir Modeling - UW towler_silo 2.0.pdf · Production Well in Niobrara 121...

Silo Field Niobrara Reservoir Modeling

Brian F. TowlerTony (Panqing) Gao

Silo Field (10 miles northeast of Cheyenne)

Discovered in 1983

Mostly oil in SE Wyoming,mostly natural gas nearDenver

Similar characteristics toother successful shale playsin the US

Hydrocarbon self sourcing

A cyclist cruises past a Niobrara outcrop along Colorado Highway 7, north of Boulder.

Taken by Lowell Georgia, 2010

Coexist with agricultural operations

1000

10000

100000

1000000

Jan-8

3

Jan-8

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Jan-8

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Jan-8

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Jan-8

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Jan-8

9

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0

Jan-9

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Jan-9

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Jan-9

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Jan-9

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Jan-9

9

Jan-0

0

Jan-0

1

Jan-0

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Jan-0

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Jan-0

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Jan-0

5

Jan-0

6

Jan-0

7

Jan-0

8

Jan-0

9

Jan-1

0Fi

eld

Rat

e (

STB

/mo

)

Date

Silo Field Production

Oil

Water Production

Water Injection

OPERATOR WELLS OPERATOR WELLS

FOUNDATION ENERGY MANAGMENT LLC 41 CHESAPEAKE OPERATING INC 2

ANADARKO E AND P COMPANY LP 21 DAVIS OIL COMPANY 2

CIRQUE RESOURCES LP 13 GOLDEN BUCKEYE PETROLEUM CORP 2

PALADIN ENERGY PARTNER LLC 9 GROSS TODD 2

KACHINA EXPLORATION INC 8 MARTIN EXPLORATION 2

PETROLEUM MANAGEMENT LLC 8 SILVERADO OIL INC 2

H & R WELL SERVICES INC 7 WILSHIRE ENTERPRISES INC 2

NOBLE ENERGY INC 7 BUCHANAN WAYMAN W 1

UNIOIL 7 CIMARRON OPERATING 1

BP AMERICA PRODUCTION COMPANY 6 CONTINENTAL RESOURCES INC 1

FORCENERGY ONSHORE INC 5 CROW CREEK OPERATING CO 1

KC RESOURCES INC 5 GREAT WESTERN RESOURCES INC 1

STONE ENERGY LLC 5 PATINA OIL & GAS CORPORATION 1

EXXON MOBIL CORPORATION 4 RESOURCE TECHNOLOGY CORPORATION 1

Z & S CONSTRUCTION CO INC 4 REX ENERGY ROCKIES LLC 1

COWAN OIL COMPANY 3 SNYDER OIL CORPORATION 1

OPERATORS IN SILO

OPERATOR WELLS

ANADARKO E AND P COMPANY LP 10

CONTINENTAL RESOURCES INC 1

CROW CREEK OPERATING CO 1

EXXON MOBIL CORPORATION 1

FOUNDATION ENERGY MANAGMENT LLC 10

KACHINA EXPLORATION INC 1

KC RESOURCES INC 2

PALADIN ENERGY PARTNER LLC 3

PETROLEUM MANAGEMENT LLC 1

SNYDER OIL CORPORATION 1

WILSHIRE ENTERPRISES INC 2

DEVELOPMENT OPERATORS IN SILO (1994-1995)

Items Number

Wells in Silo 176

Production Well in Niobrara 121

Digital Log Obtained 85/121

Vertical Well Log Obtained 46/85

Core Analysis 2

DPHI DT GR ILD LLD LLS NPHI RHOB SFLA SP

16/85 7/85 82/85 34/85 1/85 2/85 18/85 14/85 33/85 34/85

Log Data Density

Data Collection

Well location with Horizontal wells

2120097

2120198

21202282120244

2120260

2120284

2120285

2120287

2120292

2120293

2120294

2120296

2120299

2120303 2120304

2120310

2120312

21203162120318

2120319

2120323

2120325

2120326

2120328

2120331

2120334

2120336

2120337

21203382120340

2120343

2120346

2120349

2120350

2120351

2120353

2120354

2120356

2120359

2120360

2120361

2120362

2120363

2120364

2120372

2120377

2120378

160000 180000 200000 220000 240000

160000 180000 200000 220000 240000

-520000

-500000

-480000

-460000

-440000

-420000

-520000

-500000

-480000

-460000

-440000

-420000

0 10000 20000 30000 40000 50000ft

1:238419Country

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License

Model name

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Contour inc

User name

Date

Signature

1:238419

Administrator

01/12/2011

Map

GR SFLA GR SFLA GR SFLA GR

2120097

2120198

21202282120244

2120260

2120284

2120285

2120287

2120292

2120293

2120294

2120296

2120299

2120303 2120304

2120310

2120312

21203162120318

2120319

2120323

2120325

2120326

2120328

2120331

2120334

2120336

2120337

21203382120340

2120343

2120346

2120349

2120350

2120351

2120353

2120354

2120356

2120359

2120360

2120361

2120362

2120363

2120364

2120372

2120377

2120378

160000 180000 200000 220000 240000

160000 180000 200000 220000 240000

-520000

-500000

-480000

-460000

-440000

-420000

-520000

-500000

-480000

-460000

-440000

-420000

0 10000 20000 30000 40000 50000ft

1:238419Country

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Model name

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Signature

1:238419

Administrator

01/12/2011

Map

North South

GR SFLA GR SFLA GR SFLA GR SFLA

2120097

2120198

21202282120244

2120260

2120284

2120285

2120287

2120292

2120293

2120294

2120296

2120299

2120303 2120304

2120310

2120312

21203162120318

2120319

2120323

2120325

2120326

2120328

2120331

2120334

2120336

2120337

21203382120340

2120343

2120346

2120349

2120350

2120351

2120353

2120354

2120356

2120359

2120360

2120361

2120362

2120363

2120364

2120372

2120377

2120378

160000 180000 200000 220000 240000

160000 180000 200000 220000 240000

-520000

-500000

-480000

-460000

-440000

-420000

-520000

-500000

-480000

-460000

-440000

-420000

0 10000 20000 30000 40000 50000ft

1:238419Country

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License

Model name

Horizon name

Scale

Contour inc

User name

Date

Signature

1:238419

Administrator

01/12/2011

Map

West East

GR SFLA ILD GR SFLA ILD

2120097

2120198

21202282120244

2120260

2120284

2120285

2120287

2120292

2120293

2120294

2120296

2120299

2120303 2120304

2120310

2120312

21203162120318

2120319

2120323

2120325

2120326

2120328

2120331

2120334

2120336

2120337

21203382120340

2120343

2120346

2120349

2120350

2120351

2120353

2120354

2120356

2120359

2120360

2120361

2120362

2120363

2120364

2120372

2120377

2120378

160000 180000 200000 220000 240000

160000 180000 200000 220000 240000

-520000

-500000

-480000

-460000

-440000

-420000

-520000

-500000

-480000

-460000

-440000

-420000

0 10000 20000 30000 40000 50000ft

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Model name

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Date

Signature

1:238419

Administrator

01/12/2011

Map

2120097

212019821202282120244

2120260

2120284

2120285

2120287

2120292

21202932120294

2120296

21202992120303

2120304

2120310

2120312

2120316

21203182120319

2120323

2120325

2120326

2120328

2120331

2120332

2120334

2120336

2120337

2120338

2120340

21203432120346

2120349

2120350

21203512120353

2120354

2120356

2120359

2120360

2120361

2120362

2120363

2120364

2120372

2120377

2120378

440000 460000 480000 500000 520000

440000 460000 480000 500000 520000

-24

00

00

-22

00

00

-20

00

00

-18

00

00

-16

00

00

-24

00

00

-22

00

00

-20

00

00

-18

00

00

-16

00

00

0 500010000150002000025000m

1:694773Country

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Model name

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Signature

1:694773

Administrator

11/06/2010

Map

GR SFLA ILD GR SFLA ILD

2120097

2120198

21202282120244

2120260

2120284

2120285

2120287

2120292

2120293

2120294

2120296

2120299

2120303 2120304

2120310

2120312

21203162120318

2120319

2120323

2120325

2120326

2120328

2120331

2120334

2120336

2120337

21203382120340

2120343

2120346

2120349

2120350

2120351

2120353

2120354

2120356

2120359

2120360

2120361

2120362

2120363

2120364

2120372

2120377

2120378

160000 180000 200000 220000 240000

160000 180000 200000 220000 240000

-520000

-500000

-480000

-460000

-440000

-420000

-520000

-500000

-480000

-460000

-440000

-420000

0 10000 20000 30000 40000 50000ft

1:238419Country

Block

License

Model name

Horizon name

Scale

Contour inc

User name

Date

Signature

1:238419

Administrator

01/12/2011

Map

GR SFLA ILD GR SFLA ILDGR

2120097

2120198

21202282120244

2120260

2120284

2120285

2120287

2120292

2120293

2120294

2120296

2120299

2120303 2120304

2120310

2120312

21203162120318

2120319

2120323

2120325

2120326

2120328

2120331

2120334

2120336

2120337

21203382120340

2120343

2120346

2120349

2120350

2120351

2120353

2120354

2120356

2120359

2120360

2120361

2120362

2120363

2120364

2120372

2120377

2120378

160000 180000 200000 220000 240000

160000 180000 200000 220000 240000

-520000

-500000

-480000

-460000

-440000

-420000

-520000

-500000

-480000

-460000

-440000

-420000

0 10000 20000 30000 40000 50000ft

1:238419Country

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Model name

Horizon name

Scale

Contour inc

User name

Date

Signature

1:238419

Administrator

01/12/2011

Map

)17.23(083.0 GRI

shV

minmax

min

GRGR

GRGRIGR

IGR = gamma ray index

GR = gamma ray reading of formation

GRmin = minimum gamma ray (clean sand or carbonate)

GRmax = maximum gamma ray (shale)

Log Interpretation

Larionov - Tertiary rocks:

Shale volume

)(fDmaD

shDmaDshV

fDmaD

DENmaDD

2

22ND

Light hydrocarbon

Porosity

n

m

t

ww

R

RaS /1)(

where:

Sw=water saturation of the uninvaded zone

Rw=resistivity of formation water at formation temperature

Rt=true formation resistivity (i.e., deep induction or deep laterolog corrected for invasion)

φ=porosity

a=tortuosity factor

m=cementation exponent

n=saturation exponent

Water Saturation

)1(

1 2/

d

clw

n

w

m

en

w

cl

d

cl

t VaR

SS

R

V

R

Generally，m＝n＝2，d＝1～2

cl

cl

me

w

sh

sh

me

w

shtm

e

ww

R

VaR

R

VaR

RR

aRS

2)

2( 2

If a＝0.8，m＝2, So

])(5

[4.0 2

2

2sh

sh

sh

sh

wt

e

e

ww

R

V

R

V

RR

RS

Simandoux

Archie

Log Interpretation

2

4.4136.0

wirrSK

K=permeability in millidarcys

Φ=porosity

Swirr=water saturation (Sw) of a zone at

irreducible

water saturation

Permeability

Log Interpretation

Timur

Wyllie and Rose

23250

wirrSK

Original 3D, normal vertical scale

Vertically amplified 3D, 10 times

Zone 5

DX 150 feet

DY 150 feet

NX 718

NY 502

NZ 25

Cells 9010900

Model Dimension

Niobrara TopNia-A

Niobrara TopNia-B1

Niobrara TopNia-B2

Niobrara TopNia-B2Below

Niobrara TopFT Hayes

Niobrara TopCodell

FT Hayes TopNia-A

FT Hayes TopNia-B1

FT Hayes TopNia-B2

FT Hayes TopNia-B2Below

FT Hayes TopFT Hayes

FT Hayes TopCodell

GAUSSIAN RANDOM FUNCTION SIMULATION

SEQUENTIAL GAUSSIAN SIMULATION

POROSITY Nia-A

FT Hayes Top



POROSITY Nia-B1

FT Hayes Top



POROSITY Nia-B2

FT Hayes Top



POROSITY

Nia-B2Below

FT Hayes Top



POROSITY

FT Hayes

Poro-Gaussian Random

Poro-Sequential Gaussian

FT Hayes Top



WATER SAT(ARCHIE MODEL)

Nia-A

FT Hayes Top




Nia-B1

FT Hayes Top




Nia-B2




Nia-B2Below




FT Hayes

Sw-Gaussian Random

FT Hayes Top



PERMEABILITY(Wyllie and Rose)

Nia-A

FT Hayes Top




Nia-B1

FT Hayes Top




Nia-B2

FT Hayes Top




Nia-B2Below

FT Hayes Top




FT Hayes

Sw-Gaussian Random

STATIC MODELING: MORE LOGS, particularly porosity logsDEVIATION DATA (HORIZONTAL WELLS)

PVT DATA:RS, VISCOSITY, FVF, AND GRAVITY FOR OIL, GAS, WATER

SCAL DATA:RELATIVE PERMEABILITY CURVES， CAP PRESSURES

INITIAL DATANO PRESSURE DATA AVAILABLE YET

Data Still Needed

Silo Field Niobrara Reservoir Modeling - UW towler_silo 2.0.pdf · Production Well in Niobrara 121...

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