ABSTRACT
In this paper, we systematically analyzed and evaluated the damage factors of the target reservoir of adjusting wells of the Weizhou 12-1 oil field. Moreover, we put forward the suggestions for the completion of fluid system optimization and the measures on the release of production capacity and optimized the major treating agent. Furthermore, we evaluated the performance of the optimized completion fluid system. The results showed that the main damage factors in drilling and completion were low-permeability water lock and reservoir water sensitivity. The optimized completion fluid system has the characteristics of good dissolution, strong anti-swelling, low corrosion, and good anti-water lock. The optimized single fluid has good reservoir protection and reservoir reconstruction performance. The suggestions on the drilling and completion fluid system for adjusting wells of Weizhou 12-1 oil field are conducive to fully releasing production capacity.
