文档介绍：国外控制压力钻井新技术及其应用
摘要:随着已发现油气资源的日渐衰竭,对更深更复杂地层的勘探开发活动越来越多,而在钻探这些深层复杂地层时,常常出现许多如井涌、井漏、有害气体泄漏、卡钻、起下钻时间过长等钻井复杂问题,根据国内外石油专业人员估计,通过常规钻井方法,不能开发的油气资源达70%左右,因此先进的钻井新工艺新技术是推动油气勘探开发工作快速发展的重要手段之一。对此如果在钻进过程中对井下压力实施有效控制则可以较好地解决这些复杂情况。控制压力钻井(MPD)技术就是可以缓解上述复杂情况的有效方法。本文通过调研分析总结,主要介绍了控制泥浆帽压力钻井技术(CMC),双梯度钻井技术(DGD)和钻井液微流量控制钻井技术(MFC)三种控压钻井技术。并且分析了其技术原理,相应的钻井装备以及各自的技术优越性,给我国压力管理钻井技术提供了较好的理论支持。
关键词: 控压钻井,控制泥浆帽压力钻井技术,双梯度钻井技术,钻井液微流量控制钻井技术,优点
Foreign Managed Pressure Drilling New Technology and Its Application
Yuan Jian bo1
( University of Petroleum (Beijing), Changping Beijing 102249)
Abstract: With increasing oil and gas resources have been found failure, deeper and plex formation on the exploration and development activities are more and plex in the drilling of these deep strata, it is often the emergence of many such wells Chung, circulation, hazardous gas leakage, sticking, drill too long since plex issues such as drilling, according to professional estimates of oil at home and abroad, by conventional drilling method, not the development of oil and gas resources 70% and therefore the new technology of advanced drilling technology is to promote the rapid development of oil and gas exploration and development one important means. If this process of drilling of the well pressure to implement effective control can better address plexities. Controlled pressure drilling (MPD) technology can ea