Research on performance of LXX flushing fluid

In order to improve the cementation of cement annulus and formation, realizing effective interlayer good packer, maintaining the normal production of oil well and the smooth implementation of the follow-up measures to increase production, various properties of slurry need to be improved during cementing. In this article, the flushing fluid formula is determined through a large number of laboratory experiments. The washing efficiency of flushing fluid is more than 80% towards low solid phase mud cake. Moreover, it is found that the active material of the fluid is effectively reserved on the surface of the core through the micro analysis, which forms some "active wedges" and improves the cementation ability of interface effectively.