|
|
 |
|||||||||||||||||
|
|||||||||||||||||
 |
|||||||||||||||||
| JOURNAL HOME | HELP | CONTACT PUBLISHER | SUBSCRIBE | ARCHIVE | SEARCH | TABLE OF CONTENTS |
1 Geological Survey of Canada, 3303-33rd Street, Northwest, Calgary Alberta, T2L 2A7, Canada; Zhuoheng.Chen{at}nrcan-rncan.gc.ca
2 Geological Survey of Canada, 3303-33rd Street, Northwest, Calgary Alberta, T2L 2A7, Canada; kosadetz{at}nrcan.gc.ca
3 Geological Survey of Canada, 3303-33rd Street, Northwest, Calgary Alberta, T2L 2A7, Canada; cjiang{at}ucalgary.ca
4 Geological Survey of Canada, 3303-33rd Street, Northwest, Calgary Alberta, T2L 2A7, Canada; mali{at}nrcan.gc.ca
Zhuoheng Chen obtained his Ph.D. from the Norwegian University of Science and Technology in 1993 and held a position as an associate professor at China University of Petroleum (Beijing) before joining the Geological Survey of Canada in 1998. His research interests include petroleum resource assessment (methods and applications), petroleum systems, and basin analysis.
Kirk Osadetz graduated from the University of Toronto (B.Sc., 1978; M.Sc., 1983). He manages the Earth Science Sector Gas Hydrates Fuel of the Future Program and is the head of the Laboratory Services Subdivision at the Geological Survey of Canada in Calgary. He is active regarding petroleum resource evaluation and has research interests in gas hydrates, tectonics, and thermochronology. He worked previously at Gulf Canada Resources Inc. and PetroCanada Resources Inc. in Calgary.
Chunqing Jiang holds a Ph.D. in organic geochemistry. He has more than 15 years of experience in analytical and interpretive petroleum geochemistry related to petroleum exploration and production in China, Australia, and Canada. He is a senior lab scientist at Gushor Inc. and the Petroleum Reservoir Group of the University of Calgary. He has worked with Humble Geochemical Services, the Geological Survey of Canada, and PetroChina.
Maowen Li has been a research scientist with the Geological Survey of Canada since 1995. Since he received his Ph.D. in organic geochemistry from the University of Melbourne in 1991, he has conducted petroleum system studies in China, North Sea, Southeast Asia, North America, and Central Africa. His interest is in the study of petroleum system models and petroleum exploration strategies.
ABSTRACT
There are two opposing schools of thought that infer either the Bakken Formation or the Lodgepole Formation as the primary source rock for the Madison-reservoired oils in the Canadian Williston Basin. A recent geochemical study revealed evidence indicating the existence of significant mixing of Bakken and Lodgepole oils in the Madison reservoirs. To investigate the geographic distribution of the oil compositions, we employed a multivariate statistical method to extract source and maturity-specific geochemical signatures from a geochemical data set for spatial analysis. Oil mixing appears to be geographically dependent and restricted by a northeast-southwest–striking zone (Torquay-Rocanville trend) in southeast Saskatchewan. Thus, fracture or fault systems are inferred to have provided high-permeability zones allowing Bakken-derived oil to migrate upward across the Lodgepole Formation. The areas without significant fault or fracture systems favor lateral oil migration along porous beds, restricting Bakken-derived oil accumulation to pools in Bakken reservoirs and Lodgepole-derived oils to occur primarily in overlying reservoir beds of the Madison Group.
| JOURNAL HOME | HELP | CONTACT PUBLISHER | SUBSCRIBE | ARCHIVE | SEARCH | TABLE OF CONTENTS |
