随钻测量中井下大功率发电技术的研究与试验  

Research and Experiment of Downhole Powerful Generator for Measurement While Drilling

作　　者：李林 张连成 魏志刚 王磊[1] 范锦辉 

机构地区：[1]中国石油钻井工程技术研究院,北京100083

出　　处：《石油钻探技术》2008年第5期24-27,共4页Petroleum Drilling Techniques

基　　金：国家高技术研究发展计划("863"计划)"气体钻井与装备"研究课题(编号:2006AA06A103)之"电磁波随钻测量(EM-MWD)"子课题的部分内容

摘　　要：随着随钻测量和井下导向控制技术的发展,随钻测量仪器和控制工具的功能越来越强,作为井下主流电源的电池已难于满足随钻测量仪器和控制工具对电力的需求。研究分析发现,用大功率发电机作井下电源是解决电力供给的较好方法。介绍了一种可匹配EM-MWD或其它随钻测量仪器和控制工具的井下大功率涡轮发电机。该发电机由发电机本体、涡轮驱动器和无接触传动机构3部分组成,在钻井液排量大于22 L/s、额定输出电流为5 A时,设计输出功率大于600 W。在全排量的试验中,当排量在28 L/s时输出功率达到了1 100 W。试验结果表明,该发电机达到了设计的要求。根据试验中采集的数据,分析了该发电机实际的工作特性。With the development of downhole steering and measurement while drilling （MWD）, functions of MWD and steering tools become stronger and stronger; as the main downhole power source, the battery can hardly meet requirements for working. Researches suggest that powerful generator can be an alternative to provide down hole power. This paper introduces a high-power turbine generator suitable to EM-MWD and other MWD apparatus. The generator consists of generator body, turbine drive and non touch transmissions. It can output up to 600 W at 22 L/s of drilling fluid flux and 5 A of electric current. During test, the output reached 1 100 W. at full flow out of 28 L/s. The results show that the generator reached designed requirements. Actual working characteristics of this generator were analyzed in this paper.

关 键 词：随钻测井 涡轮发电机 导向钻井 电磁辐射 

分 类 号：TE271[石油与天然气工程—油气井工程]