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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract

AAPG Bulletin, V. 83 (1999), No. 9, P. 1377-1391.

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Previous HitGhostNext Hit Ranch Field, Nevada: New Discovery from Combined 3-D Seismic and Well Log Data

Scott L. Montgomery,1 Carl H. Schaftenaar,2 Jerome B. Hansen,2 andSara Holm2

©Copyright 1999.  The American Association of Petroleum Geologists.  All Rights Reserved
 

1Petroleum Consultant, 1511 18th Avenue East, Seattle, Washington 98112; e-mail: [email protected]

2Foreland Corporation, 143 Union Blvd., Suite 210, Lakewood, Colorado 80228.

ABSTRACT

Previous HitGhostNext Hit Ranch field was discovered in 1996 on the basis of a 3-D (three-dimensional) seismic survey guided by analysis of log data from nearby existing wells. The 7 mi2 (18 km2) survey had the initial goal of identifying infill opportunities in Eagle Springs field and led to the drilling of a series of new producers. Results from this activity, combined with log data from nearby Kate Spring field, enabled the mapping of an oil-bearing Paleozoic slide-block mass between the two fields. A structural high with four-way closure, roughly 40-50 ac (16-20 ha) in size, was identified and successfully drilled to open Previous HitGhostNext Hit Ranch field. Previous HitGhostNext Hit Ranch produces from fractured Devonian dolomites at depths of about 4350-4400 ft (1326-1342 m). The field has a strong water drive, an oil column of 100 ft (30 m), and estimated original oil in place (OOIP) of 2 million bbl. Production through January 1999 was 216.7 mbbl (11% OOIP) from three wells. Success at Previous HitGhostTop Ranch suggests that the updip margins of the productive slide-block mass define an excellent target for future exploration. 

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