脱砂 meaning in Chinese

sand strip

Water shutoff agent dsz - a is composed of inorganic particle . its specialities are low cost , easily flow , high strength and long valid period . the agent suits non - selective water shutoff in sand formation . dsz - a not only can plug high water - bearing formation , but also can plug case leakage . dsz - a has been applied on site and gotten good effect . it is a agent which has wide prospect
中原油田渗透率低,储层埋藏深,温度高,压裂改造难度大.针对斜井(井斜30 )压裂存在早期脱砂的情况,开展了相关专题研究.通过近两年的实践探索,基本解决了斜井压裂改造的难题,施工成功率达98 % ,效果也大幅度提高.文中介绍了中原油田斜井压裂成功的典型做法,对其它油田的斜井压裂改造有借鉴作用