Three New Exploration and Development Concepts for Compartmented Basins. AnnualReport, July 1993-June 1994

摘要

Research continued in our three major areas of investigation: (1) fault-associated seals and reservoirs, (2) seal rupture and compartment leakage, and (3) compartment auto-isolation. A dual-component (feldspar and chert) geochemical system is proposed for the generation and preservation of porosity in chert-rich reservoirs along the Wichita fault zone. Similar cementing patterns evident in fault-associated Atokan and Morrowan rocks suggest a strong tectonic influence on fluid migration and porosity occlusion. Depositional facies, composition and texture strongly influence the location, type, and thickness of seal zones in auto-isolated compartmentalized reservoirs. Permian-age reservoirs in the Cement field contain chemically similar oils that were derived from a common deeper source.