Study Of Sidetracking Well Cementing Technology In Jidong Oildom

Because of high water cut layers, inconsistency bore frame, good cement job quality can't be acquired by routine cement method, the cement job quality in Jidong Oildom is so poor that the sidetaacking wells'production time is short universally.In this article,base on the analyse to the geologic characteristic of Jidong Oildom, optimise the cement slurry system which suit for it;and deceloped the counter pressure well cemention technology including control the"U-Tube"effect and building the pressure in annulur space which aimed to relieve the effection of the cement slutty weight loss.In field,two wells were taken effect the technology,and the cement job quality improved obviously.This technology provides a auserful device for improving the cement job quality in sidetracking well operation in Jidong Oildom.