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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 63 (1979)

Issue: 3. (March)

First Page: 484

Last Page: 484

Title: Painter Reservoir Field--Giant in Wyoming Thrust Belt: ABSTRACT

Author(s): C. F. Lamb

Article Type: Meeting abstract


Painter reservoir field is the largest of several recent Nugget Sandstone hydrocarbon discoveries in the Wyoming thrust belt province. The field is located in Uinta County, Wyoming, 5 mi (8 km) northeast of the town of Evanston. It lies on trend with the Clear Creek and Ryckman Creek accumulations, 5 and 10 mi (8 and 16 km), respectively, northeast. These features are also productive from the Nugget Sandstone.

The field discovery, Chevron-Federal 22-6A, was drilled in mid-1977 on a seismic anticlinal structure. The Nugget Sandstone was entered at 9,728 ft (2,918 m) and 1,355 ft (407 m) were penetrated to the total depth of 11,083 ft (3,325 m). After extensive testing, on October 22, 1977, potential of the well was 410 BOPD and 859 MCFGD, on 15/64-in. choke, FTP 1,275. Flow rates as high as 1,500 BOPD were recorded on larger chokes. Gravity of the oil is 48.4° API. Active development began immediately and is still in progress.

Field limits and structural configuration are not yet fully decided, but seismic and drilling data indicate an overturned fold associated with the hanging wall of the Absaroka thrust. Present drilling has established an oil and gas column of over 1,000 ft (300 m). The producing Nugget formation is a cross-bedded, quartz sandstone over 850 ft (255 m) thick with an average porosity of 12% and permeability ranging from 0 to 1,000 md. Analysis of the oil suggests a Cretaceous source.

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