偏重钻具防斜机理分析及应用  

Investigation of Deviation Prevention Mechanism of Unbalanced Drill Tools and Its Applications

作　　者：张桂林[1,2] 刘同富[1,2] 张延明 

机构地区：[1]胜利石油管理局生产管理部 [2]胜利石油管理局钻井五公司技术部

出　　处：《石油钻探技术》1999年第1期18-20,共3页Petroleum Drilling Techniques

摘　　要：介绍了胜利油田胜北断裂带和坨胜永断裂带两个地层倾角为３０°～５０°区块上的钻井情况，分析了偏重钻具的结构及防斜、纠斜原理。５口井的现场应用表明，该偏重钻具能有效地解决大倾角地层钻井中易发生井斜的问题，值得推广应用。Drilling activities are introduced in two blocks with formation dip 30°￣50°, the structure features and deviation prevention mechanism of two unbalanced drill tools are analyzed. Application results in 5 wells show the tools can solve the problem of well deviation encountered in formations with big dip and is worth wide application.

关 键 词：偏重钻铤 井斜 井斜控制 纠斜 钻具组合 胜利油田 

分 类 号：TE26[石油与天然气工程—油气井工程] TE921.207