井下电动钻具的现状及发展  

PRESENT SITUATION AND DEVELOPMENT TRENT OF DOWNHOLE ELECTROMOTIVE DRILL

作　　者：刘春全[1] 徐茂林[2] 汤平汉[3] 

机构地区：[1]西南石油大学机电工程学院 [2]辽河油田物资公司 [3]中国石油塔里木油田分公司

出　　处：《钻采工艺》2008年第5期115-117,124,共4页Drilling & Production Technology

摘　　要：井下电动钻具不靠钻井液驱动,因此具有比井下涡轮钻具和井下螺杆钻具广的使用范围;井下电缆的使用,为井下信息的传递提供了平台;比采用涡轮钻具和螺杆钻具更低的钻井成本使其具有良好的应用前景;日趋完善的井下电动钻具技术为其发展奠定了基础。驱动井下动力钻具的能量通过钻井液、空气或电缆传递。目前国内使用最多的井下动力钻具是由钻井液驱动的,气动井下动力钻具近年来才在国内开始应用。尽管电动井下动力钻具的发明已有100多年历史,但由于受到技术水平的限制,井下动力钻具直到最近几年才引起国际钻井界的关注。文章介绍的是俄罗斯(前苏联)及美国在井下电动钻具方面的研究和使用资料。Because of downhole electromotive drill doesn' t depend on slurry to driving,therefore,it has the more wide range of application than screw drill and turbo drill.The using of down-hole cable provided a platform for the transmission of information.The drilling cost is lower than the cost of using screw drill and tur-bo drill,so the downhole electromotive drill has a good application prospect.The technology of downhole electromotive drill which is gradually maturing lay the foundation for its development.The pa-per introduced the research and application of downhole electromo-tive drill in Russia and USA.

关 键 词：电动钻具 结构 工作原理 

分 类 号：P634[天文地球—地质矿产勘探]