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Challenges of Full-Field Modeling a Giant Oil and Gas Field: Prudhoe Bay Field, North Slope of Alaska

By
James D. Copen
James D. Copen
BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, Alaska 99519-6612
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Stephan Bergbauer
Stephan Bergbauer
BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, Alaska 99519-6612
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Eric Ding
Eric Ding
BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, Alaska 99519-6612
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Steve Jones
Steve Jones
BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, Alaska 99519-6612
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Jon Konkler
Jon Konkler
BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, Alaska 99519-6612
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Sholan Ramnath
Sholan Ramnath
BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, Alaska 99519-6612
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Joe Dozzo
Joe Dozzo
International Reservoir Technologies, Inc. 300 Union Blvd., Suite 400 Lakewood, Colorado 80228
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Mark H. Scheihing
Mark H. Scheihing
ConocoPhillips Inc. 600 North Dairy Ashford Houston, Texas 77079
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Ron D. Thompson
Ron D. Thompson
ConocoPhillips Inc. 600 North Dairy Ashford Houston, Texas 77079
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Lisa M. Towery
Lisa M. Towery
BP America, Inc. 501 Westlake Park Blvd. Houston, Texas 77079
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Published:
December 01, 2006

Abstract

Prudhoe Bay Field, the largest non-heavy-oil field in North America, has produced about 11 billion of 25 billion barrels of oil-in-place since production began in 1977. Co-owners ExxonMobil, ConocoPhilfield simulation modellips, and BP made the decision to build a new full-field model to evaluate future development decisions in the field. Requirements for the full-field, 12-component reservoir simulation model included a model size limit of about one million active cells and an areal grid block resolution of 5 acres (467ft/142m X 467ft/142m) and 10 to 15 feet (3.0m to 4.6m) vertically. The model incorporates approximately 2600 wells (about 1000 of which are horizontal), 1800 faults, all productive reservoir zones and other important geological controls on fluid flow such as shales and conglomeratic thief zones. A team composed of BP’s Alaskan geological, geophysical, petrophysical, and reservoir engineering staff; geocellular modelers from the three partner companies; and a consultant reservoir simulation engineer was assembled to build the model. The inclusion of operating company geoscience and engineering staff contributed specific expertise in the geology and reservoir engineering of Prudhoe Bay Field. The inclusion of multiple geocellular modeling staff contributed “best practices” from each partner company and also allowed key parts of the model, such as the structural framework and properties model, to be built concurrently, thus saving substantial time. The inclusion of the consultant reservoir simulation engineer having extensive experience with previous Prudhoe Bay full-field models provided continuity with prior modeling efforts.

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GCSSEPM

Reservoir Characterization: Integrating Technology and Business Practices

Roger M. Slatt
Roger M. Slatt
Houston, Texas
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Norman c. Rosen
Norman c. Rosen
Houston, Texas
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Michael Bowman
Michael Bowman
Houston, Texas
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John Castagna
John Castagna
Houston, Texas
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Timothy Good
Timothy Good
Houston, Texas
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Robert Loucks
Robert Loucks
Houston, Texas
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Rebecca Latimer
Rebecca Latimer
Houston, Texas
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Mark Scheihing
Mark Scheihing
Houston, Texas
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Hu Smith
Hu Smith
Houston, Texas
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SEPM Society for Sedimentary Geology
Volume
26
ISBN electronic:
978-0-9836096-4-3
Publication date:
December 01, 2006

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