旋流扶正器导流能力评价  

EVALUATING FLOW-DIVERSION OF CEMENTING TURBULATOR

作　　者：舒秋贵[1] 周申立[1] 柳世杰[2] 

机构地区：[1]西华师范大学 [2]四川石油管理局

出　　处：《天然气工业》2007年第9期59-61,共3页Natural Gas Industry

基　　金：国家自然科学基金项目(编号:90610013);西华师范大学科研启动基金项目(编号:04B035)的资助

摘　　要：固井作业中,首要解决的是注水泥顶替泥浆的问题。如果水泥浆未能"替净"环空泥浆,再好的水泥浆体系也根本不起作用。使用旋流扶正器既可提高套管的居中度,又可对流体进行导流而形成螺旋流,还可以提高环空水泥浆对泥浆的顶替效率。为此,采用理论与实验相结合的方法,深入研究了评价旋流扶正器的导流能力的合理指标,在此基础上研究了旋流扶正器的导叶叶型、导流角、导叶高度,以及旋流扶正器的长度等结构参数对导流能力的影响。During cementing operations, the major issue to be addressed is the displacement of drilling fluid by cement slurry. If the drilling fluid in the annulus cannot be completely displaced, even the best cement slurry cannot provide high cementing quality. The turbulator can be used to improve the centralization of the casing strings, to allow the fluid to form spiral flow, as well as to improve the displacement efficiency. In this paper theoretic study and experimental study have been combined to conduct an in-depth study on appropriate criterion of the flow diversion of spiral turbulator, based on which the effects of blade type, blade diversion-angle, blade height of the turbulator, and the length of the turbulator on flow diversion are investigated.

关 键 词：固井 注水泥 旋流扶正器 导流能力 顶替 

分 类 号：TE256[石油与天然气工程—油气井工程]