Depositional environments and sand body morphologies of the muddy sandstones at Kitty Field, Powder River Basin, Wyoming

Conference · Tue Jan 01 04:00:00 EST 1980 · Guideb. - Wyo. Geol. Assoc., Annu. Field Conf.; (United States)

OSTI ID:6525110

Larberg, G M.B.

Lower Cretaceous muddy sandstones form a stratigraphic trap at Kitty Field, Campbell County, Wyoming. Porosity and permeability are generally low, but the best reservoir develop maximum effective porosity of 17% and maximum permeability of 442 md. Reservoirs sandstones average less than 15 ft and rarely exceed 30 ft in thickness. Ultimate recovery from the field is estimated at 23 million bbl. Based on electric log character, 4 easily recognizable zones within the muddy interval at Kitty were numbered one through 4 in slabbed cores and petrographic analyses of selected core samples, suggest that sandstones in the second, third, and fourth muddy zones were deposited as part of a sequence associated with the overall transgression of the lower Cretaceous sea. Fourth zone sandstones are fluvial in origin, and were deposited in lows on the unconformable surface of the underlying skull creek shale. 18 references.

• OSTI ID: 6525110
• Report Number(s): CONF-8009331-
• Conference Information: Journal Name: Guideb. - Wyo. Geol. Assoc., Annu. Field Conf.; (United States) Journal Volume: 31
• Country of Publication: United States
• Language: English

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