An Overview of Dissolution Porosity Development in the Deep-Burial Environment, With Examples from Carbonate Reservoirs in the Permian Basin

Basic Information
Author: Mazzullo, S.J. , Harris, P.M.
Description:Porosity in carbonate reservoir rocks is known to result from subaerial meteoric exposure in eogenetic environment. However, enhancement of pre-existing porosity or creation of new porosity also occurs by dissolution in the deep-burial, mesogenetic environment. Except for porosity along stylolites and hydraulic fractures, pore types formed by mesogenetic dissolution mimic those created in the eogenetic environment. Mesogenetic dissolution likely is effected by fluids, charged with organic acids, carbon dioxide, and hydrogen sulfide, generated relatively late in the history of subsiding basins during organic matter maturation in source rocks and hydrocarbon degradation. The many examples of mesogenetic dissolution porosity known in carbonate reservoir rocks in the Permian Basin attest to the significance of deep-burial diagenesis in reservoir development.
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Geographic Extent
North Bounding Latitude: 33.853
South Bounding Latitude: 30.081
East Bounding Longitude: -101.008
West Bounding Longitude: -103.75