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Book Chapter

Understanding Controls on Production Optimization in the Bakken Petroleum System, Williston Basin: A Geologic Study of Shale Heterogeneities at the Field Level

By
Corbin W. Crews, II
Corbin W. Crews, II
Department of Earth and Atmospheric Sciences University of Houston Houston, Texas
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Published:
January 01, 2014

Abstract

It is widely recognized that shale resource plays such as the Bakken Petroleum System, in the Williston Basin, North America, are significantly more spatially complex over nearly every geological parameter than previously understood. For example, closely spaced Bakken wells can have much different production rates over their lifetime, despite very similar completion strategies. In ultra-low porosity and permeability regimes typical of shale resources plays, the variations in rock characteristics from well to well may be below the resolvable scales of seismic reflection and well data. These undetectable variations can lead to variations in organic content or elasticity that in turn affect production. I attempt to address differences in first year cumulated production from wells in the Red Sky survey area of the Ross Field, North Dakota, using results from core studies on bulk mineralogy, clay content, thermal maturity, and in situ stress. These data allow me to make assessments of brittleness and ultimate fracability of wells having differing production histories of closely spaced wells within Ross Field.

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Contents

GCSSEPM

Sedimentary Basins: Origin, Depositional Histories, and Petroleum Systems

James Pindell
James Pindell
Houston, Texas
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Brian Horn
Brian Horn
Houston, Texas
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Norman Rosen
Norman Rosen
Houston, Texas
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Paul Weimer
Paul Weimer
Houston, Texas
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Menno Dinkleman
Menno Dinkleman
Houston, Texas
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Allen Lowrie
Allen Lowrie
Houston, Texas
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Richard Fillon
Richard Fillon
Houston, Texas
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James Granath
James Granath
Houston, Texas
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Lorcan Kennan
Lorcan Kennan
Houston, Texas
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SEPM Society for Sedimentary Geology
Volume
33
ISBN electronic:
978-0-9836097-9-0
Publication date:
January 01, 2014

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