Bakken/Torquay Development: A Manitoba Update. Dan Barchyn

Transcription

1 Bakken/Torquay Development: A Manitoba Update Dan Barchyn

2 Outline History of Bakken/Torquay Development in Manitoba Examples of different play types: Daly Pools: Finding sweet spots in an area of ubiquitous oil saturation. Birdtail: : Structural and stratigraphic closures in a regionally wet sand. Sinclair: Reservoirs below the unconformity. Bakken Oil System: What we still don t know (but would like to!).

3 History California Standard 954: First completion attempt at Daly Newscope 985: Kola Pool Discovery: Daly area development Northrock 99: Birdtail Pool Discovery: Extends fairway updip Tundra 2003: Sinclair Pool Discovery: Torquay (Three Forks) production Current Production (Nov./04): 04 bopd from 93 wells

4 Data As Of: (MB) WellCount: 254/ Calndr-Day Av g OIL Bbl HISTORICAL BAKKEN/TORQUAY PRODUCTION MANITOBA Time (y ears) Cum GAS 0.0 Mcf Cum OIL 3,940,92.4 Bbl Cum WTR,323,542.8 Bbl From: To: Well Count count

5 T R29 R7 T Rocanville Birdtail T Bakken Subcrop T5 T4 T3 T2 Daly T T0 T9 T8 Sinclair T7 T R34 R33 R32 R3 R30 R29 R28 R27 R2 R25 R24 R23 Sask Man Bakken Producing Areas R22 R2 R20 R9 R8 R7W

6 Daly Area Major Lodgepole pool discovered in 950. Bakken oil charge throughout area (40 degree API). Production performance determined by reservoir quality in Middle Bakken sandstone. Sweet Spots trend north-south parallel to depositional strike. Kola (Bakken( A) Pool ultimate recovery = 2 mmbbls Major pools are under waterflood. Production is commonly commingled with overlying Lodgepole. Underlying Torquay beds are productive in S. Ebor area.

7 Daly Area R29 R Kola T S. Ebor Cromer T Bakken Producers Highlighted

8 Kola Pool Detail A A Sand Thick 3 3 T0 T0 Sand Thick R29

9 Kola Area Log 00/ W/ MbkknU_sh MbkknM_ss D3_forks Phi.(avg) = 7% K(avg) = 2 md Net Pay = 5 m

10 Kola Area: Stratigraphic Section A 00/ W/00 <=750.3m=> 00/ W/00 <=205.2m=> 00/ W/00 A' 4428 Mbs_ls MbkknU_sh MbkknU_sh 850 MbkknU_sh Datum MbkknM_ss MbkknM_ss MbkknM_ss D3_forks D3_forks D3_forks TD 88.0m TD 878.0m TD 884.0m

11 Kola Production Profile Data As Of: From: To: (MB) INDIVIDUAL PRODUCTION Tundra Kola Unit No. 2 00/ W/00 Status: Field: Pool: Capable Of Oil Prod DALY (0) BAKKEN A (0A) Time (years) Prdcg-Day Avg OIL Bbl Cum GAS 0.0 Mcf Cum OIL,050.9 Bbl Cum WTR 4,50.2 Bbl Percent: WTR Cut % Monthly Hours hrs

12 Kola Horizontal Production Profile Data As Of: From: To: (MB) INDIVIDUAL PRODUCTION Kola Unit No. 2 HZNTL 00/ W/00 Status: Field: Pool: Capable Of Oil Prod DALY (0) BAKKEN A (0A) Time (years) Prdcg-Day Avg OIL Bbl Cum GAS 0.0 Mcf Cum OIL 78,902.5 Bbl Cum WTR 4,03.4 Bbl Percent: WTR Cut % Monthly Hours hrs

13 Kola Waterflood Response Data As Of: From: To: (MB) INDIVIDUAL PRODUCTION Tundra Kola Unit No. Prov. 00/ W/00 Status: Field: Pool: Capable Of Oil Prod DALY (0) BAKKEN A (0A) Time (years) Prdcg-Day Avg OIL Bbl Cum GAS 0.0 Mcf Cum OIL 8,309.5 Bbl Cum WTR 3,47.0 Bbl Percent: WTR Cut % Monthly Hours hrs

14 Daly Area: Commingled Completion 00/ W/ Mdaly_M Mcruik_sh 750 Mcruik_cr Mcromer 800 Mbs_ls MbkknM_ss D3_forks

15 Birdtail Area Small Pools (500 mbbls.) within area of good quality Middle Bakken sand. Identifiable down-dip dip water legs. Shallow depth (520m), 3 degree API oil. Under waterflood. Trapping appears to be a combination of structural and stratigraphic factors.

16 Birdtail Area Birdtail Unit 2 T Birdtail Unit R27

17 Birdtail Area Log 00/ W/ MbkknU_sh MbkknM_ss D3_forks 525 Phi (avg) = 8% Net Pay = 3.5m

18 Birdtail Production Profile Data As Of: From: To: (MB) INDIVIDUAL PRODUCTION Birdtail Unit No. 2 Prov. 00/ W/00 Status: Field: Pool: Capable Of Oil Prod BIRDTAIL (5) BAKKEN C (0C) Time (years) Prdcg-Day Avg OIL Bbl Cum GAS 0.0 Mcf Cum OIL 32,88.5 Bbl Cum WTR 8,744.4 Bbl Percent: WTR Cut % Monthly Hours hrs

19 Sinclair Area Recent (2003) discovery with currently active development. Flow unit straddles the unconformity with the bulk of pay found in the underlying Torquay. Reservoir beds correlate to Christopher s Torquay Unit 4. Reservoir is a sandy carbonate (Dolomite). Log expression is subtle and doesn t explain variations in productivity.

20 Sinclair Area T8 A T Sask. Manitoba Highlighted wells drilled since Jan. 2004

21 Sinclair Area Log 00/ W/00 4 MbkknU_sh MbkknM_ss D3_forks T_MARKER 025 Phi (avg) = % K (avg) = 3.5 md Net Pay =.0m

22 Sinclair Production Profile Data As Of: From: To: (MB) INDIVIDUAL PRODUCTION Tundra South Ebor 02/ W/00 Status: Field: Pool: Capable Of Oil Prod OTHER AREAS (99) BAKKEN - THREE FORKS B (2B) Time (years) Prdcg-Day Avg OIL Monthly GAS Bbl [No Data] Cum GAS 0.0 Mcf Cum OIL,28.8 Bbl Cum WTR 5,55. Bbl Percent: WTR Cut % Monthly Hours hrs

23 Sinclair Daly Stratigraphic Section A 00/ W/00 <=2454.0m=> 00/ W/00 A' MbkknU_sh MbkknM_ss D3_forks MbkknU_sh MbkknM_ss Datum 850 T_MARKER T_MARKER 050 Dbirdbear Dbirdbear 900

24 T T7 T8 T9 T0 T T2 T3 T4 T5 T R7W R8 R9 R20 R2 R22 R23 R24 R25 R2 R27 R28 R29 R30 R3 R32 R33 R Rocanville-Birdtail Daly-Sinclair Virden-Subcrop Birdtail-Waskada Axis Structure on Upper Bakken R29 R7 T T

25 Exploration Issues Three different play types are known: Daly: facies variations in the Middle Member define sweet spots in area of oil saturation. Birdtail: structual/stratigraphic trapping within area of regionally wet sand. Sinclair: erosionally truncated carbonate reservoirs charged from overlying younger strata. The Bakken oil system Limited distribution of pools and shows. Do we really understand it?

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