Reservoir Quality and Its Control Factors of Complex Fault Block Reservoir in Continental Faulted Basin, Case Study in the Wang Guantun Area, Bohai Bay Basin, China

Continental faulted basins are widely distributed in eastern China. Many of these basins, which the faults block oil and gas reservoirs, have been explored. The heterogeneity reservoirs fault is very strong, shich restricts further efficient development kinds fields. In this study, porosity permeability tests, use thin sections rock, mercury injection experiment CT scan were used to investigate reservoir quality characteristics control factors. results showed that content quartz, feldspar, debris rock had a significant function on reservoir. Reservoir performance improved with increase quartz feldspar content, worsened content. Taking Ek1 Wang Guantun area as specific research object, we developed following understanding. On one hand, main compaction study was mechanical compaction. When rate greater than 60%, inversely proportional rate. other dissolution pores relatively area, types intragranular intergranular pores. surface pore over 9.2%, increased significantly porosity. This greatly range.