The balanced-pressure cementing designs are done for different kinds of casing cementing operations in Lu 9 Region. The technical measures to increase displacement efficiency are given and discussed for the wells with weak formations.
给出并讨论了低压易漏井提高注水泥顶替效率的工艺技术措施。
参考来源 - 低压易漏、易窜井固井技术研究与应用·2,447,543篇论文数据，部分数据来源于NoteExpress
套管偏心是影响顶替效率的关键因素。
The casing offcenter is a key factor to effect the displacing efficiency.
使用螺旋流顶替理论能克服这一缺点，大大改善顶替效率。
Adopting helical flow displacement theory can overcome the disadvantage and greatly improve the displacement efficiency.
水泥浆环空流动的壁面剪应力是影响顶替效率的关键因素。
The wall shear stress caused by cement slurry flowing in the annular space is a key element that affects the displacing efficiency.
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