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The AAPG/Datapages Combined Publications Database
West Texas Geological Society
Abstract
An Overview of Dissolution Porosity Development in the Deep-
Burial
Environment, with Examples from Carbonate Reservoirs in the Permian Basin
Abstract
Porosity in carbonate reservoir rocks is known to result from subaerial meteoric exposure in the eogenetic environment. However, enhancement of pre-existing porosity or creation of new porosity also occurs by dissolution in the deep-burial, meso-genetic 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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