防掉套铣技术在地热定向井中的应用  

Application of Washover Technique to Geothermal Directional Well

作　　者：高文彬[1] 申法忠[1] 

机构地区：[1]华北石油管理局第二钻井工程公司新技术推广站

出　　处：《石油钻探技术》1996年第2期18-19,共2页Petroleum Drilling Techniques

摘　　要：ＷＲ４５－２Ｄ井是一口地热开发定向并，起钻工井深５８６．９７ｍ处发生键槽卡钻。在用地面下去器下击无效的情况下，采用防掉套铣矛套铣一次成功。本文较详细地介绍了该井卡钻事故处理的作业难点、技术要点及效果分析。The well (WR 45-2D ) is a geothermal development directional well. A keyseat sticking happened at the depth of 586. 97m, which can not be released by running bumper jars. However, the use of washover proved to be very successful. The paper presents in denal the operational difficulties of freeing stuck pipe, technical priciples and effect evalutions.

关 键 词：卡点测量 爆炸松扣 防掉套铣矛 定向钻井 

分 类 号：TE243[石油与天然气工程—油气井工程]