Bakken/TorquayBakken/TorquayDevelopment: Development:

AA Manitoba UpdateManitoba Update

Dan Dan BarchynBarchyn

OutlineOutlineHistory of History of Bakken/TorquayBakken/Torquay Development in Development in ManitobaManitobaExamples of different play types:Examples of different play types:

Daly Pools: Finding sweet spots in an area of Daly Pools: Finding sweet spots in an area of ubiquitous oil saturation.ubiquitous oil saturation.BirdtailBirdtail: Structural and : Structural and stratigraphicstratigraphic closures in a closures in a regionally wet sand.regionally wet sand.Sinclair: Reservoirs below the unconformity.Sinclair: Reservoirs below the unconformity.

BakkenBakken Oil System:Oil System:What we still don’t know (but would like to!).What we still don’t know (but would like to!).

HistoryHistoryCalifornia Standard 1954: California Standard 1954:

First completion attempt at Daly 13First completion attempt at Daly 13--1414--99--28.28.NewscopeNewscope 1985: 1985:

Kola Pool Discovery: Daly area developmentKola Pool Discovery: Daly area developmentNorthrockNorthrock 1996: 1996:

BirdtailBirdtail Pool Discovery: Extends fairway Pool Discovery: Extends fairway updipupdipTundra 2003: Tundra 2003:

Sinclair Pool Discovery: Sinclair Pool Discovery: TorquayTorquay (Three Forks) (Three Forks) productionproduction

Current Production (Nov./04):Current Production (Nov./04):1014 1014 bopdbopd from 193 wells from 193 wells

Time (y ears)1985 200587 89 91 93 95 97 99 01 03

015

0015

030

045

060

075

090

010

5012

0013

50

Calndr-Day Av g OIL Bbl

020

02 0

4 06 0

8 01 0

01 2

01 4

01 6

01 8

0

Well Count count

Cum GAS 0.0 McfCum OIL 3,940,192.4 BblCum WTR 6,323,542.8 Bbl

Data As Of :WellCount:

2004-11 (MB)254/255

HISTORICALBAKKEN/TORQUAY PRODUCTION

MANITOBA1972-092004-11

From:To:

T6

T7

T8

T9

T10

T11

T12

T13

T14

T15

T16

R17W1R18R19R20R21R22R23R24R25R26R27R28R29R30R31R32R33R34

Bakken Subcrop

Birdtail

Daly

Rocanville

Sinclair

Sask Man Bakken Producing Areas

T6

T16

R17R29

Daly AreaDaly AreaMajor Major LodgepoleLodgepole pool discovered in 1950.pool discovered in 1950.BakkenBakken oil charge throughout area (40 degree API).oil charge throughout area (40 degree API).Production performance determined by reservoir quality Production performance determined by reservoir quality in Middle in Middle BakkenBakken sandstone.sandstone.“Sweet Spots” trend north“Sweet Spots” trend north--south parallel to depositional south parallel to depositional strike.strike.Kola (Kola (BakkenBakken A) Pool ultimate recovery = 2 A) Pool ultimate recovery = 2 mmbblsmmbblsMajor pools are under Major pools are under waterfloodwaterflood..Production is commonly commingled with overlying Production is commonly commingled with overlying LodgepoleLodgepole..Underlying Underlying TorquayTorquay beds are productive in S. Ebor area.beds are productive in S. Ebor area.

Daly Area

31 3631 3631 361 36

16

31 36

16

31 36

16

31 36

16

31 36

16

31 36

16

31 36

16

31 36

16

31 36

61616161

Kola

S. EborCromer

T10

T9

R29 R28

Bakken Producers Highlighted

Kola Pool Detail

A A’

T10

31 36Sand Thick

Sand Thick

R29

T10

850

D3_forks

MbkknM_ss

MbkknU_sh

4489

100/03-33-010-29W1/00

Kola Area Log

Phi.(avg) = 17% K(avg) = 12 md Net Pay = 5 m

850

TD 886.0m

D3_forks

MbkknM_ss

MbkknU_sh

850

TD 878.0m

D3_forks

MbkknM_ss

MbkknU_sh

Mbs_ls

850

TD 884.0m

D3_forks

MbkknM_ss

MbkknU_sh

4428

100/09-32-010-29W1/00A

4574

100/05-33-010-29W1/00

<=750.3m=>

4461

100/09-33-010-29W1/00

<=1205.2m=>A'

Kola Area: Stratigraphic Section

Datum

Time (years)1996 200597 98 99 00 01 02 03 04

110

100

Prdcg-Day Avg OIL Bbl

110

100

Percent: WTR Cut %

1010

010

00

Monthly Hours hrs

Cum GAS 0.0 McfCum OIL 111,050.9 BblCum WTR 4,650.2 Bbl

Data As Of:From:

To:

2004-11 (MB)1996-022004-11

INDIVIDUAL PRODUCTIONTundra Kola Unit No. 2100/05-33-010-29W1/00

Capable Of Oil ProdDALY (01)BAKKEN A (60A)

Status:Field:Pool:

Kola Production Profile

Time (years)1998 200599 00 01 02 03 04

110

100

Prdcg-Day Avg OIL Bbl

110

100

Percent: WTR Cut %

1010

010

00

Monthly Hours hrs

Cum GAS 0.0 McfCum OIL 78,902.5 BblCum WTR 4,063.4 Bbl

Data As Of:From:

To:

2004-11 (MB)1998-022004-11

INDIVIDUAL PRODUCTIONKola Unit No. 2 HZNTL

100/06-33-010-29W1/00

Capable Of Oil ProdDALY (01)BAKKEN A (60A)

Status:Field:Pool:

Kola Horizontal Production Profile

Time (years)1987 200589 91 93 95 97 99 01 03

110

100

Prdcg-Day Avg OIL Bbl

110

100

Percent: WTR Cut %

1010

010

00

Monthly Hours hrs

Cum GAS 0.0 McfCum OIL 81,309.5 BblCum WTR 113,467.0 Bbl

Data As Of:From:

To:

2004-11 (MB)1987-072004-11

INDIVIDUAL PRODUCTIONTundra Kola Unit No. 1 Prov.

100/16-20-010-29W1/00

Capable Of Oil ProdDALY (01)BAKKEN A (60A)

Status:Field:Pool:

Kola Waterflood Response

750

800

D3_forksMbkknM_ss

Mbs_ls

Mcromer

Mcruik_cr

Mcruik_sh

Mdaly_M

4989

100/11-23-009-28W1/00

Daly Area: Commingled Completion

BirdtailBirdtail AreaAreaSmall Pools (500 Small Pools (500 mbblsmbbls.) within area of good .) within area of good quality Middle quality Middle BakkenBakken sand. sand. Identifiable downIdentifiable down--dip water legs.dip water legs.Shallow depth (520m), 36 Shallow depth (520m), 36 degreedegree API oil.API oil.Under Under waterfloodwaterflood..Trapping appears to be a combination of Trapping appears to be a combination of structural and structural and stratigraphicstratigraphic factors.factors.

Birdtail Area

3131 3636

6

31

16

31 36

1

36

T16

R27

Birdtail Unit 1

Birdtail Unit 2

525

D3_forks

MbkknM_ss

MbkknU_sh

4714

100/01-19-016-27W1/00

Birdtail Area Log

Phi (avg) = 18% Net Pay = 3.5m

Time (years)1997 200598 99 00 01 02 03 04

110

100

Prdcg-Day Avg OIL Bbl

110

100

Percent: WTR Cut %

1010

010

00

Monthly Hours hrs

Cum GAS 0.0 McfCum OIL 32,818.5 BblCum WTR 18,744.4 Bbl

Data As Of:From:

To:

2004-11 (MB)1997-072004-11

INDIVIDUAL PRODUCTIONBirdtail Unit No. 2 Prov.100/01-19-016-27W1/00

Capable Of Oil ProdBIRDTAIL (15)BAKKEN C (60C)

Status:Field:Pool:

Birdtail Production Profile

Sinclair AreaSinclair AreaRecent (2003) discovery with currently Recent (2003) discovery with currently active development.active development.Flow unit straddles the unconformity with Flow unit straddles the unconformity with the bulk of pay found in the underlying the bulk of pay found in the underlying TorquayTorquay..Reservoir beds correlate to Christopher’s Reservoir beds correlate to Christopher’s TorquayTorquay “Unit 4”.“Unit 4”.Reservoir is a sandy carbonate (Dolomite).Reservoir is a sandy carbonate (Dolomite).Log expression is subtle and doesn’t Log expression is subtle and doesn’t explain variations in explain variations in productivity.productivity.

Sinclair Area

3131 3631 3631 3631 3636

6

31

16

31 36

16

31 36

16

31 36

16

31 36

1

36

6

31

16

31 36

16

31 36

16

31 36

16

31 36

1

36

6161616161

A3-7-8-29

T7

T8

ManitobaSask. Highlighted wells drilled since Jan. 2004

1025

T_MARKER

D3_forks

MbkknM_ss

MbkknU_sh

4666

100/03-07-008-29W1/00

Sinclair Area Log

Phi (avg) = 16% K (avg) = 3.5 md Net Pay = 6.0m

Time (years)2003 200504

110

100

Prdcg-Day Avg OIL Bbl

Monthly GAS [No Data]

110

100

Percent: WTR Cut %

1010

010

00

Monthly Hours hrs

Cum GAS 0.0 McfCum OIL 11,286.8 BblCum WTR 5,556.6 Bbl

Data As Of:From:

To:

2004-11 (MB)2003-022004-11

INDIVIDUAL PRODUCTIONTundra South Ebor

102/03-07-008-29W1/00

Capable Of Oil ProdOTHER AREAS (99)BAKKEN - THREE FORKS B (62B)

Status:Field:Pool:

Sinclair Production Profile

Sinclair – Daly Stratigraphic Section

1000

1050

Dbirdbear

T_MARKER

D3_forksMbkknM_ssMbkknU_sh

850

900

Dbirdbear

T_MARKER

MbkknM_ss

MbkknU_sh

4666

100/03-07-008-29W1/00A

4489

100/03-33-010-29W1/00

<=26454.0m=>A'

Datum

T6

T7

T8

T9

T10

T11

T12

T13

T14

T15

T16

R17W1R18R19R20R21R22R23R24R25R26R27R28R29R30R31R32R33R34

-623.2-523.2 -423.2

-423.2

-323.2-323.2

-223.2

-223.2

-223.2

-123.2

-123.2

-123.2

Rocanville-Birdtail

Daly-Sinclair

Virden-Subcrop

Birdtail-Waskada Axis

Structure on Upper Bakken

R29 R17

T6

T16

Exploration IssuesExploration IssuesThree different play types are known:Three different play types are known:

Daly: Daly: faciesfacies variations in the Middle Member define variations in the Middle Member define sweet spots in area of oil saturation.sweet spots in area of oil saturation.BirdtailBirdtail: : structual/stratigraphicstructual/stratigraphic trapping within area of trapping within area of regionally wet sand.regionally wet sand.Sinclair: Sinclair: erosionallyerosionally truncated carbonate reservoirs truncated carbonate reservoirs charged from overlying younger stratacharged from overlying younger strata..

The The BakkenBakken oil systemoil systemLimited distribution of pools and shows.Limited distribution of pools and shows.Do we really understand it?Do we really understand it?

Questions for the ResearchersQuestions for the Researchers

What is the nature of and hydrodynamic history What is the nature of and hydrodynamic history of the of the BakkenBakken flow unit?flow unit?Why is there a cluster of light (40 degree API) oil Why is there a cluster of light (40 degree API) oil pools at very shallow depths on the northeastern pools at very shallow depths on the northeastern basin flank?basin flank?What is the geochemistry and thermal history of What is the geochemistry and thermal history of the “hot” Upper the “hot” Upper BakkenBakken shalesshales in the Daly area?in the Daly area?Does the conventional view of long distance Does the conventional view of long distance secondary oil migration from a basinsecondary oil migration from a basin--centered oil centered oil window still make window still make sense?sense?