Application of Temporarily Blocking Technique in 1st District Sandstone Reservoir of Center Sungar

Abstract:

The frame grains and filling grains were designed by using temporary shield blocking techniques, taking account of heterogeneous apertures and following the reservoir features of Sangong Structure in 1st district of Sungar. The drilling fluid formula was optimized after indoor test. The techniques gained very good application results in 1st district of center Sungar. The permeation recovery rate reached over 95%. The surface ratio of test well all were negative.