The Optimization of Sand Control Completion in Bohai Bay

Abstract The application of moderate sand control technology in the area of Bohai Bay has achieved significant success in recent years, but the problems that some wells receive high sand production rate and the sand is uncontrollable still exist. As a result, how to choose a reasonable way of sand control becomes urgent when it comes to field work. Analyzing the design basis of domestic and international sand control method and combining with an indoor large-scale model experiment of sand production, the authors proposes the theoretical basis for the selection of moderate sand control technique: three main parameters as uniformity coefficient (UC), shale content (Vsh), and water swelling property of clay mineral. The design of sand retention precision is mainly according to median grain diameter (D50) of formation sand. On the basis of analyzing the reservoir characteristics and evaluating the productivity under different sand control methods for the typical oil fields in Bohai Bay, the authors present se...