注水井分层测压技术探讨

Discussion about Techniques of Separate Pressure Test for Water-Injection Wells.

将带有仿存储式电子压力计的堵塞器投入到水井对应的配水器内 ,实现分层段井下关井测压 ,可减小井筒续流影响 ,使测压资料更符合实际。简述了仿存储式电子压力计的结构及工作原理 ,对分层测压资料与全井测压资料进行了对比分析 ,认为分层测压可以有效地防止井筒储集和水嘴的影响 。

Wellbore storage can be diminished if a blanking plug with pseudo storage electric pressure gauges was launched into water prorator of the objective water well to perform downhole shutdown for pressure separate test. Structure and operate principle of the blanking plug are introduced briefly. Contrast and analyses are presented between the separate test data the unite test data. It is shown that wellbore storage and the influence of water nozzle has been reduced. It is clear that thin layer pressure can be better measured correspondingly.