汶川地震断裂带科学钻探一号孔(WFSD-1)定向钻进技术的应用  

Application of Directional Drilling Technology in the Hole WFSD-1 of Wenchuan Earthquake Fault Scientific Drilling Project

作　　者：吴金生[1] 宋军[1] 尤建武[2] 曹其友[2] 张文英[1] 

机构地区：[1]中国地质科学院探矿工艺研究所,四川成都611734 [2]四川省地质矿产勘查开发局四○三地质队,四川峨眉山614200

出　　处：《探矿工程（岩土钻掘工程）》2009年第12期20-22,共3页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：科技部科技支撑计划专项"汶川地震断裂带科学钻探(WFSD)"项目之"科学钻探与科学测井"课题

摘　　要：汶川地震断裂带科学钻探1号孔(WFSD-1)发生的孔内事故钻具无法进行处理,需进行定向钻进(侧钻)绕过事故钻具,用LZ-89型连续造斜器在580.07 m水泥孔底上侧钻,用3 h 20 min造斜进尺3 m就偏出新孔转入正常钻进。介绍了该次定向钻进(侧钻)的技术要点。In the complicated formation, 2 drill strings were broken in the hole WFSD - 1 and 2 fishers were lost in it. Directional drilling was conducted to pass by the accident drilling tools. LZ - 89 continuous whipstock was used for sidetracking at the bottom of the cement hole with the depth of 580. 07m. A new hole was generated after 3m directional drilling in more than 3 hours. The paper introduced technical points of the directional drilling （sidetracking）.

关 键 词：科学钻探 汶川地震断裂带 孔内事故 连续造斜器 侧钻 

分 类 号：P634.7[天文地球—地质矿产勘探]