The New Bakken Play in Eastern Montana* Stephen A. Sonnenberg1 Search and Discovery Article 10424 (2012)** Posted July 16, 2012 *Adapted from oral presentation at AAPG Annual Convention and Exhibition, Long Beach, California, USA,…
like a traditional carrier bed. Structures in this area may be needed for trapping. Source beds still appear to be mature, based on resistivity, however. This area northwest of the BFFS has Three Forks potential. Selected References…
http://geology.mines.edu/Bakken/NETL_DOE/Fall_Consortium_Meeting/Theloy_Facies%20variability.pdf Volker, J., 2011, Expanding the Bakken, Part 3, Williston and Alberta Basins Regional Map: Hart Energy Developing Unconventional Oil…
The New Bakken Play in Eastern Montana Stephen A. Sonnenberg Colorado School of Mines
The Bakken Petroleum System of the Williston Basin: a Tight Oil Resource Play SASKATCHEWAN MANITOBA Viewfield Area -5000 Parshall Limit of Area Bakken Fm. Nesson Anticline B-SD Area Elm NORTH Billings Coulee Nose…
Modified from LeFever 1992; Anna, 2009
NDIC (2010) estimated ultimate +++++ production Bakken Petroleum System: ++++++ CHARLES ++ + Bakken: 2.1 Billion barrels Three Forks: 1.9 Billion MADISON GROUP barrels MISSISSIPPIAN MISSION USGS 2008 CANYON Technically…
USGS 2008
Bakken Petroleum System Reservoirs: Source Beds: Middle Bakken & Three Forks Upper & Lower Bakken Shales what was made in the Bakken, stayed in the Bakken PS
Volker, 2011
Structure Bakken CI: 50 ft
South North Lodgepole UBS MB E/F MB D MB A-C LBS TF D TF C Three Forks TF B TF A Nisku
New Plays Elm Coulee extensions Middle Bakken north-central area Upper and Middle Three Forks north area Middle Bakken and Three Forks Wolf Creek Nose area Poplar Dome area False Bakken source rocks, south of Elm Coulee
Painted Poplar Woods Dome Operators: Brigham EOG Structure Whiting Continental Bakken XTO CI: 50 ft Enerplus Burlington 25 miles Oasis
Murray, 1968 Comments on the Bakken shales: any restricted reservoir in direct contact with either of the two shale units should be productive anywhere in the deeper part of the basin, regardless of structural position one of the…
500 1000 SHALLOW LOW RESISTIVITY TREND Suggested BAKKEN SUBSURFACE TEPMERATURE, F SUGGESTED TEMPERATURE OF HYDROCARBON GENERATION AT 1650F temperature of HC 1500 generation = 165oF or 74oC 2000 2500 3000 25…
Limit Lower Bakken Shale High Paleogeothermal Gradient Area Lower Bakken Res Limit Middle Bakken Upper Bakken Res Structure Bakken Formation CCA Limit Upper Bakken Shale 50 miles Modified from Hester and Schmoker,…
Correlation cross-section Harvey Gray Big Sky 1 9,010 ft 9,884 ft UBS 9885t F Subtidal 9015 E3 9890 E3 E2 Intertidal 9020 E2 9895 E1 E1 D Upper Intertidal D C4 9025 9900 C5 C3 Intertidal 9030 9905 C1 C4 C3 B Subtidal…
Depositional Environment: Shallow Shelf F E E1 sea level rise E1 F E D D C C B sea level drop B A A after Walker and Plint (1992) from Smith and Bustin, 1996 Theloy, 2010
Depositional Environment: Shallow Shelf
Harvey Gray 9,010 ft 9015 E3 9020 E2 E1 9025 D C5 9030 C4 C3 9035 C2 9040 B 9045 A3 A2 9050 A2 LBS 9055 Isopach Middle Bakken A-C Theloy, 2011 TF- C Contour interval: 5 ft
9,010 ft 9015 E3 9020 E2 E1 9025 D C5 9030 C4 C3 9035 C2 9040 B 9045 A3 A2 9050 A2 LBS 9055 TF- C Isopach Middle Bakken D Theloy, 2011 Contour interval: 5 ft
9,010 ft 9015 E3 9020 E2 E1 9025 D C5 9030 C4 C3 9035 C2 9040 B 9045 A3 A2 9050 A2 LBS 9055 TF- C Isopach Middle Bakken E&F Theloy, 2011 Contour interval: 5 ft
Lodgepole UBS Middle Bakken LBS TF-D TF-C TF-B TF-A Isopach Upper Three Forks Birdbear/Nisku Contour interval: 5 ft
Lodgepole UBS Middle Bakken LBS TF-D TF-C TF-B TF-A Isopach Middle Three Forks Birdbear/Nisku Contour interval: 10 ft
Meissner, 1978 Relationship between source-rock maturity, hydrocarbon generation, geopressuring and fracturing suggest an opportunity in exploration for unrecognized and unlooked-for unconventional accumulations of potentially…
Summary NE Montana Mature source rocks over large area Favorable facies present in Middle Bakken and Three Forks New Bakken drilling north of Elm Coulee with good initial potentials Elm Coulee extensions Wolf Creek, Poplar areas…
Colorado School of Mines Bakken Consortium Mike Johnson Consulting Geologist
Bakken/Three Forks Tight Oil Resource Play Bakken Research Consortium Steve Sonnenberg ssonnenbmines. edu