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OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey

North Dakota Geological Survey · Jun 1, 2005 · 33 slides

Investor presentation from the Shale Experts oil & gas presentation and slide database. Every page is imaged and its text indexed for search across operators, plays, basins and time.

Slides

  1. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 1
    Overview of Bakken Stratigraphy and Mini-Core Workshop Julie A. LeFever North Dakota Geological Survey
  2. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 2
    Stratigraphy False Bakken Mississippian Lodgepole Formation Pelmatozoan limestone upper Bakken Formation middle lower Devonian Sanish Three Forks Formation
  3. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 3
    75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Bakken Formation Middle Member Contour Interval 5 ft
  4. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 4
    Divide Re Burke Bottineau n vill e Williams Mountrail McHenry Ward Northern Play McKenzie McLean Dunn Oliver Billings Bakken Areas of Interest Stark Southern Play
  5. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 5
    Stratigraphy Central Bakken Basin in North Dakota South Mississippian Lodgepole Formation North Upper Shale Member Bakken Formation Transitional Facies L5 Mississippian Lithofacies 4 Lithofacies Central Basin…
  6. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 6
    Stratigraphy Bakken Limit in North Dakota South North Mississippian Lodgepole Formation Upper Shale Member Bakken Formation Transitional Facies L5 Mississippian Lit Upper (Productive) ho fa Devonian ci es…
  7. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 7
    GR Res
  8. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 8
    Lithofacies of the Middle Member Upper Shale Lithofacies 7 - Siltstone Lithofacies 4 Interbedded Dark Grey Shale and Buff Silty Sandstone Lithofacies 3 - Sandstone Lithofacies 2 Interbedded Dark Grey Shale and Buff Silty…
  9. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 9
    Upper Shale Lithofacies 5 Lithofacies 4 Lithofacies 3 Conoco, Inc. 17 Watterud A Lithofacies 2 Lithofacies 1 Shell Oil Co. Lower Shale 32-4 Young Bear
  10. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 10
    Upper Shale Lithofacies 5 Lithofacies 4 Lithofacies 3 Meridian Oil, Inc. 44-27 MOI Lithofacies 2 Lithofacies 1 Shell Oil Co. 32-4 Young Bear Lower Shale
  11. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 11
    Duncan Petroleum Corp. 1 Rose SENE Sec. 2, T.153N, R.94W. Three Forks Formation Apple-green & tan Interbedded shales, dolostones, siltstones, and sandstones 250 feet thick Subtidal to supratidal
  12. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 12
    Duncan Petroleum Corp. 1 Rose SENE Sec. 2, T.153N, R.94W. Sanish Sand medium brown, highly burrowed argillaceous siltstone to very fine-grained sandstone pyrite is common near lower shale dolomitic cement 0 24 ft thick…
  13. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 13
    Three Forks Formation-Lower Bakken Shale Contact Oryx Energy Co. - 1-27 Stenejhem HD AHEL - Nevins 1 H8 NESE Sec. 27, T150N, R97W SESW Sec. 13, T23N, R56W 10992.2 ft
  14. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 14
    Duncan Petroleum Corp. 1 Rose Lower Bakken Shale SENE Sec. 2, T.153N, R.94W. 10575.5 ft 10575.5 ft
  15. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 15
    Shell Oil Company 10469 32-4 Young Bear SWNE Sec. 4, T.148N, R.92W. Lower Bakken Shale - Lithofacies 1 Contact unconformable lags conformable
  16. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 16
    10468 Shell Oil Company 32-4 Young Bear SWNE Sec. 4, T.148N, R.92W. Lithofacies 1 Argillaceous siltstone Massive with scattered fossils crinoids and brachiopods Abundant pyrite 1.5 to 6 ft thick
  17. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 17
    Shell Oil Company 32-4 Young Bear SWNE Sec. 4, T.148N, R.92W. Lithofacies 2 10459 Argillaceous siltstone to very-fine grained sandstone with small clay drapes Burrowed with scattered crinoids and brachiopods Calcite cement 0…
  18. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 18
    Shell Oil Company 32-4 Young Bear SWNE Sec. 4, T.148N, R.92W. Upper Lithofacies 2 Porosity Zone 10454 Argillaceous siltstone to very-fine grained sandstone with rare clay drapes Heavily burrowed Calcite cement Mappable on…
  19. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 19
  20. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 20
    10456 ft Upper Lithofacies 2 10462 ft Lower Lithofacies 2
  21. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 21
    Oryx Energy Co. 1-27 Stenejhem HD NESE Sec. 27, T150N, R97W Lithofacies 3 Very fine- to fine-grained sandstone Massive, cross-bedded, to thinly laminated may have load or channel features Calcite cement (occasionally pyrite) 0…
  22. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 22
    Exeter Exploration Company 8-30 Schmitz SENE Sec. 30, T.152N, R.85W. Lithofacies 3 Very fine- to fine-grained sandstone Massive, cross-bedded, to thinly laminated may have load or channel features 10849 Calcite cement, in…
  23. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 23
    Conoco Oil Company 17 Watterud A SESW Sec. 11, T.160N, R.95W. Lithofacies 3 Argillaceous siltstone to very fine- grained sandstone Thinly laminated, irregularly or wavy laminated Not cemented or dolomitic 0 to 6.5 ft thick
  24. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 24
  25. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 25
    Oryx Energy Company 1-27 Stenejhem HD NESE Sec. 27, T.150N, R.97W. Central Basin Lithofacies Sequence of argillaceous siltstones, fine- grained sandstones, and dark grey shales Laminated, cross-bedded, to highly disturbed Not…
  26. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 26
    Conoco Oil Company 17 Watterud A SESW Sec. 11, T.160N, R.95W. Lithofacies 4 alternating sequence argillaceous siltstone, fine-grained sandstone, dark grey shale laminae thinly laminated, parallel or slightly undulatory local…
  27. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 27
    Conoco Oil Company 17 Watterud A SESW Sec. 11, T.160N, R.95W. Lithofacies 4 alternating sequence of grey siltstone, brown/black shale, and very fine-grained sandstone basal beds thinly laminated with burrows argillaceous…
  28. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 28
    Shell Oil Company 32-4 Young Bear SWNE Sec. 4, T.148N, R.92W. Lithofacies 5 medium to light grey argillaceous siltstone massive to wispy laminated brachiopods through entire section, crinoids and bryozoan fragments in the…
  29. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 29
    Meridian Oil Company 4-27 MOI SESE Sec. 27, T.143N, R.102W. Upper Bakken Shale - Lithofacies 5 Contact conformable unconformable lag
  30. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 30
    10446 ft Lithofacies 3 10451 ft Central Basin Facies
  31. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 31
    Texaco, Inc - 1-5 Thompson Upper Bakken Shale Canada na ntana Monta HF/E Mo M VF/E Shell Oil Co. - 32-4 Young Bear North Dakota Montana
  32. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 32
    Conclusions Lithofacies are present basinwide Multiple potential pay sections within the middle member Additional productive sections Sanish section Three Forks Formation Lower Lodgepole Primary reservoir porosity may be enhanced…
  33. OVERVIEW OF BAKKEN STRATIGRAPHY AND MINI CORE WORKSHOP – North Dakota Geological Survey – slide 33
    Conclusions Fractures enhance the potential for production Numerous subtle changes in lithology

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