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The AAPG/Datapages Combined Publications Database

Williston Basin Symposium

Abstract

SKGS-AAPG

Fifth International Williston Basin Symposium, June 14, 1987 (SP9)

Pages 242 - 252

KNUTSON FIELD AND ITS RELATIONSHIP TO THE MISSION CANYON OIL PLAY, SOUTH-CENTRAL WILLISTON BASIN

ROBERT W. BOGLE, Diamond Shamrock Exploration Company, 370 17th Street, Suite 2900, Denver, Colorado 80202
WILLIAM B. HANSEN, Division of Mineral Resources, U.S. Bureau of Land Management * P.O. Box 36800, Billings, Montana 59107

ABSTRACT

Knutson Field lies on the Billings-Golden Valley County line adjacent to the western border of Theodore Roosevelt National Park. The field was discovered by Diamond Shamrock Exploration Company in 1983 with the completion of a 9325' Mission Canyon well. As of January 1, 1987, sixteen wells were producing 2583 BOPD and 7948 BWPD, and had made 1,993,073 BO and 4,374,170 BW. The field should ultimately recover in excess of 4 MMBO.

Three factors affect accumulation of oil in the two pools of Knutson field, as well as in two Rider field wells to the south: 1) a north plunging anticlinal nose; 2) a NE-SW-trending pinchout of the Mission Canyon dolomitic reservoir; and 3) mobile Mission Canyon ground water flowing from the southwest. Furthermore, these factors to varying degrees affect all Mission Canyon oil fields of the south-central Williston Basin.

Due to the high cost of drilling and operating wells in this area, future exploration for similar reservoirs must take into account all three of the above factors.

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