挤注增注技术的研究及应用

Study and application on injection technology by squeezing

随着新寨作业区的不断投产投注,在注水井投注过程中,出现了很多注水井注不进去的现象或注水压力特别高。针对这一问题,通过研究和借鉴其它增注技术,对注水井在近井地带,由于钻井、射孔或试油过程中被污染,造成地层堵塞,注不进去水,研究应用挤注增注技术,使地层能量得不到及时补充,同时,影响注水开发效果。

With the continuous production and injection in xinzhai operational zone,and while injection wells are injecting,many phenomena have emerged,for instance,water usually can＇t be injected into the wells,or injection pressure is vey high.aimed at such problems,we study it and draw on the experience of other injection-augmentation technologies,As to these formation blockings happened near the injection wells,which may caused by the contamination during drilling,perforation and well testing,we study on the injection by squeezing and magnifying, which can＇t supply sufficient energy to the formation on time, meanwhile it also affects the injection effect.