高温地热发电钻井技术进展  

Advances in the Drilling Technologies for High Temperature Geothermal Power

作　　者：查永进 冯晓炜[2] 葛云华 陈志学[1,2] 

机构地区：[1]中国石油集团钻井工程技术研究院,北京100195 [2]中国石油大学(北京)石油工程学院,北京102249

出　　处：《科技导报》2012年第32期51-54,共4页Science & Technology Review

基　　金：国家科技重大专项(2011ZX05021)

摘　　要：超高温钻井技术是高温地热发电的关键技术,钻井技术的突破将有力地促进中国深层高温地热发电产业快速发展。本文分析了高温地热钻井的主要技术难点,包括高温井控、超高温钻井液、高温固井与成井、高温钻井工具与仪器、高温井眼轨道测量与控制、高温条件下破岩效率等。针对这些难点,国内外形成的技术对策包括高温井钻井安全控制、抗高温固井水泥浆、抗高温井下工具、井眼轨道监测与控制、抗高温钻头技术与提高钻速等,最后简单叙述了肯尼亚深层超高温地热钻井实例。Ultra high temperature drilling is the key technology of high temperature geothermal power generation, the breakthrough of which will enhance the development of the deep high-temperature geothermal power generation industry. We analyze the major technical problems of high temperature geothermal drilling, which include high-temperature well control, ultra high temperature drilling mud, high-temperature well cementing and completion, tools and instruments that suit for the high temperature condition, high temperature well trajectory ~o^asurements and control, rock-breaking efficiency in high temperature condition, and so on. As for those problems, the experts both at home and aboard have developed many technological responses, such as, the safety well control of the high temperature geothermal drilling, anti-high-temperature cement, anti-high-temperature down-hole tools, well trajeetory monitor and control, anti- high-temperature drill bits and drilling rate, and so on. It is also provided an example of the deep high-temperature geothermal drilling in Kenya at last.

关 键 词：高温地热 地热钻井 地热发电 高温岩体 超高温 

分 类 号：TK529[动力工程及工程热物理—热能工程] P634[天文地球—地质矿产勘探]