Hai1Block Depth Of Flooding Composite System Research

In the waterflood development about block H1, the water-oil mobility ratio is high, the reservoir heterogeneity is strong, the contradiction between plane bed, internal and intrabed of zone is obvious. The absorbent of injection well is unbalanced in the longitudinal and plane. Producing level of the fault block is high. The distribute of remaining oil is stray. The treatment is more and more difficult. By analyzing the water drive, oil production rate, decline rate, waterflood swept area, recoverable reserves and recovery ratio forecast of block H1, to evaluate waterflood development effect of block H1. Analyzing the feasibility of from reservoir adaptiveness, injection-production pattern degree of perfection and profile control in the past. Do comprehensive and systematic study, and laboratory testing, to optimize deep profile control and displacement system. And do three pipe parallel model testing. Through on-site applications, to increase the oil production, to decrease the natural decline ratio, to stabilize the synthetical decline rate. Achieve the purpose of expanding the water drive swept range and improving the displacement efficiency. To provide technical support for the research of profile control and displacement, for waterflood development and heavy oil reservoir slowing down decline, for stabilizing and improving individual well producing rate.