紊流顶替和接触时间对顶替效率的影响  

The Effects of Flow Pattern and Contact Time on Cementing Displacement

作　　者：张兴国[1] 许树谦[1] 陈若铭[1] 齐静[1] 

机构地区：[1]新疆石油管理局钻井工艺研究院,新疆克拉玛依834000

出　　处：《西部探矿工程》2005年第2期74-76,共3页West-China Exploration Engineering

摘　　要：通过室内实验,研究了紊流顶替及接触时间对注水泥顶替效率的影响。研究结果表明,提高紊流顶替的紊流程度,延长接触时间,均有助于提高顶替效率,但顶替效率并不随接触时间的延长而持续增加,因此,无须为追求接触时间而过分加大冲洗液、隔离液及水泥浆的量,以同时兼顾整个固井工程设计的其它技术经济指标。s: the effects of cementing displacing flow pattern and contact time on cementing displacement have been studied experimentally. The study shows the flow pattern and contact time have bad effects on cementing displacement: the higher the degree of turbulent flow displacing and the longer the contact time, the better the displacement. So, in order to improve the displacement, the degree of the turbulent flow displacing and the contact time should be increased as well as possible on the condition that the hole is safe and stable.

关 键 词：固井 注水泥 套管居中度 顶替效率 

分 类 号：TE254.1[石油与天然气工程—油气井工程]