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Book Chapter

History of Exploration and Commercialization of the Giant Pinedale Tight Gas Sand Field, Sublette County, Wyoming

By
Stephen R. Kneller
Stephen R. Kneller
Ultra Petroleum Corporation, Denver, Colorado, U.S.A. Retired
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J. Paul Matheny
J. Paul Matheny
QEP Energy, Denver, Colorado, U.S.A. Retired
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Richard G. Albertus
Richard G. Albertus
Ultra Petroleum Corporation, Denver, Colorado, U.S.A. (1996–1999)
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Elliott A. Riggs
Elliott A. Riggs
Fossil Associates, Denver, Colorado, U.S.A. Deceased
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Published:
January 01, 2014

Abstract

Pinedale field, located in Sublette County, Wyoming, is one of the largest natural gas fields in the United States. The discovery and commercialization of this field covers a period of nearly 60 years. During this time, many different companies and people were involved in bringing Pinedale to the point of commercial production. The field produces from the Upper Cretaceous Lance Formation on the Pinedale anticline. The Lance Formation is a series of stacked sandstones interbedded with siltstone, mudstone, and shale. The sandstones typically average about 7% porosity with permeabilities in the single-digit micro-Darcy range. In much of the Pinedale field, the Lance reservoir section is over 5500 ft (1700 m) thick, and it is typically overpressured throughout the section. The commercialization of the field was made possible through the convergence of a better understanding of the geology of the reservoir rocks and the nature of the field’s structure as revealed through the use of modern three-dimensional (3-D) geophysical data. This understanding permitted the development and utilization of modern drilling and completion practices that were developed during the drilling of the adjacent Jonah field and that continue to evolve today.

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Contents

AAPG Memoir

Pinedale Field: Case Study of a Giant Tight Gas Sandstone Reservoir

Mark W. Longman
Mark W. Longman
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Stephen R. Kneller
Stephen R. Kneller
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Thomas S. Meyer
Thomas S. Meyer
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Mark A. Chapin
Mark A. Chapin
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American Association of Petroleum Geologists
Volume
107
ISBN electronic:
9781629812717
Publication date:
January 01, 2014

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