国外控制压力钻井新技术和其应用.doc

国外控制压力钻井新技术及其应用 摘 要：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关键词：Foreign Managed Pressure Drilling New Technology and Its Application Yuan Jian bo1 (1.China University of Petroleum (Beijing), Changping Beijing 102249) Abstract: With increasing oil and gas resources have been found failure, deeper and more complex formation on the exploration and development activities are more and more complex 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 the complex 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 these complexities. Controlled pressure drilling (MPD) technology can ease the complexity of the situation is an effective method. This paper analyzed and summarized research, mainly introduced to control the pressure mud cap drilling technology (CMC), dual-gradient drilling (DGD) and the fluid flow control micro-drilling technology (MFC) of three controlled pressure drilling technology. And analysis of the technology principle, the appropriate drilling equipment, and their technical superiority, stress management to Chinas drilling technology provides a better theoretical support. Keywords: Managed Pressure Drilling , Controlled Mud Cap ,Dual Gradient Drilling, Micro Flow Control System,Advantage 1 引言 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 图1控制泥浆帽钻井系统基本配置 图2控制泥浆帽钻井设备安装及工艺流程 2.2 控制泥浆帽钻井的主要装备 控制泥浆帽钻井技术（CMC）是在常规控压钻井技术发展的基础上开发的新技术，因此它所采用的主要设备也是其它常规控压技术中的关键设备。如：旋转控制装置、节流器、以及其它已开发并主要用于欠平衡钻井作业的专用设备，这些对于控制泥浆帽钻井技术具有独特的作用。控制泥浆帽钻井的设备装置需要一个小直径高压隔水管、一个分离系统、一个独立的水下泥浆举升泵系统以及一个有效的随钻环空压力测量系统。除了上面讲