Study on Development Law of Complex Fluvial Reservoir under Water

The Bozhong oilfield (Hereinafter referred to as BZ oilfield) is a typical representative of complex fluvial reservoirs in the Bohai Sea, located southern with an average porosity 30.3% and permeability 643 × 10-3 μm2, belonging medium high reservoir, reservoir has good connectivity, underground crude oil viscosity 5 mPa·s. There are many plane fault blocks, longitudinal well section long, so oil-water relationship very complex. With further development oilfield, vertical horizontal movement law, residual distribution potential unclear, resulting rapid bottom water coning, unbalanced injection production increasingly prominent contradictions among layers, planes layers oilfield. Through numerical simulation analysis comparison displacement law recovery degree under different influence conditions, this paper studies effect actual sand body conditions such types, methods layout positions, takes appropriate for which great significance improve