Print this pageAbstract: Role of Mineralogy During Steam-Induced Diagenesis in Sandstone Reservoirs
PENNELL, DAWNE A. and ROBERT A. HORTON, JR., Department of Geology, California State University, Bakersfield, California 93311
Summary
This study assesses the role of mineralogy on artificial diagenesis during steam injection. Kern River oil field reservoir sands consist of arkosic arenites derived from plutonic (granitic) sources. Lithic grains are mainly granitic. The major effect of steam injection in these sands has been dissolution of grains and the creation of secondary porosity. In contrast, Potter sands in Midway-Sunset oil field had mixed plutonic-volcanic sources and contain abundant volcanic-lithic grains. In these sands there has been significant alteration of volcanic grains and pseudomatrix including changes in clay mineralogy, porosity, and pore-space morphology.
AAPG Search and Discovery Article #90937©1998 AAPG Annual Convention and Exhibition, Salt Lake City, Utah