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The AAPG/Datapages Combined Publications Database

West Texas Geological Society

Abstract


West Texas Geological Society Bulletin
Vol. 23 (1983), No. 1. (September), Pages 4-9

Reservoir and Clay Mineral Trends in the Morrow Formation, Southeastern New Mexico

Louis J. Mazzullo

Abstract

Sandstone gas reservoirs of the Morrow Formation of southeastern New Mexico were formed in a spectrum of terrestrial to marine depositional environments and hence are expected to show diverse depositional trends. The clay mineralogy of these sandstones, which primarily reflects variations in the source and chemistry of clay-precipitating subsurface waters, affects in various ways the deliverability of hydrocarbons from the reservoirs. Reservoir trends as well as clay mineralogy can vary drastically from horizon to horizon in a single well or within a field area. In order to effectively explore for or exploit these reservoirs, the Morrow section should not be treated as a simple, homogeneous unit, but rather should be studied on a zone-to-zone basis.


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