用井下闭环可变径稳定器控制大位移井的井眼轨迹方法研究  

Study on Extended-reach Well Trajectory Control with Downhole Close-loop Adjustable Stabilizers

作　　者：余志清[1] 

机构地区：[1]西安石油学院石油工程系,陕西西安710065

出　　处：《石油钻探技术》2001年第2期49-51,共3页Petroleum Drilling Techniques

基　　金：国家 8 63科技攻关项目!"海底大位移井井眼轨迹控制技术.可变径稳定器研制" (82 0 - 0 9- 0 1 - 2 B)部分成果论文

摘　　要：简要地介绍了可变径稳定器的结构及工作原理 ,在对带有可变经稳定器的钻具组合进行力学分析的基础上 ,着重论述了控制井眼轨迹的方法。该工具为解决我国大位移井、特别是滩海油气勘探、提高钻井机械钻速。The close-loop downhole adjustable stabilizer is the answer to the questions presented in extended-reach wells nowadays, such as how to exert WOB effectively, overcome friction, borehole purification, enhance the rate of penetration and extend the displacement, etc. The structure and principle of the downhole close-loop adjustable stabilizer is introduced in this paper. It also lays emphasis on the method of borehole trajectory control. Meanwhile, this paper presents an effective solution for extended-reach well drilling, especially for offshore drilling, enhance rate of penetration and reduce drilling costs.

关 键 词：井下闭合可变径 石油钻井稳定器 大位移井 井眼轨迹 钻具组合 

分 类 号：TE243[石油与天然气工程—油气井工程] TE921.2