水平井、筛管完井修井作业启示

The Inspiration from Operation of Work-Over Job in Horizontal and Screen Liner Completion Well

水平井有利于多采油,油层中流体流入井中的流动阻力小,生产能力比普通直井、斜井高。水平井由于井眼轨迹的特殊性,其施工风险和难度都高于普通井。筛管完井具有不用射孔、试油工艺简单的优点,但修井作业难度大,易污染油层。以DG2H井为例对水平井、筛管完井修井技术进行了深入探讨,为今后此类井修井提供了借鉴。

Horizontal well makes for more oil production,and flowing resistance force of fluid flowing into well-bore in oil reservoir is small,and productivity in which are higher than that in ordinary well or inclined well.Because of particularity of hole trajectory in horizontal well,its construction risk and difficulty are heavier than in ordinary well.Screen liner completion has advantages without perforation and with simple oil production tech,but it is more difficult to operate about work-over job,and easy to pollute oil reservoir.For example of DG2H well,the tech is deeply approached that is operation about work-over job in horizontal well and screen liner completion,and provides references for work-over job in this kind of wells in future.