--> ABSTRACT: Re-evaluation of Williston Basin Potential Paleozoic Source Rocks and Petroleum Systems, by D. M. Jarvie and R. F. Inden; #91021 (2010)

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Re-evaluation of Williston Basin Potential Paleozoic Source Rocks and Petroleum Systems

JARVIE, DANIEL M., and RICHARD F. INDEN

Potential Paleozoic petroleum source rocks and petroleum systems have been expanded recently to include 10 potential source units and petroleum systems. These results are based on recent investigations of well samples including cuttings and core from across the basin as well as published findings. Potential and effective source rocks include the following: (1) Pennsylvanian Heath Formation (Tyler), (2) Mississippian Ratcliffe Member of the Charles Formation (Charles), (3) Mississippian Mission Canyon Formation (Mission Canyon), (4) Mississippian Upper, Middle, False Bakken, and Scallion Members of the Lodgepole Formation (Lodgepole), (5) Devonian-Mississippian Bakken Formation (Bakken and Lodgepole), (6) Devonian Winnipegosis Formation (Winnipegosis, Interlake), and (7) Ordovician Red River Formation (Red River, Big Horn, Deadwood?). These prospective systems have source rocks with varying potential and decomposition kinetics. These differences suggest multiple oil windows depending on the rate of decomposition of the difference source rocks. These differences are documented by measured decomposition kinetics on source rocks, laboratory-generated petroleum from these rocks, and calculated oil expulsion temperatures from whole oil light hydrocarbon data.

AAPG Search and Discovery Article #91021©1997 AAPG Annual Convention, Dallas, Texas.