深水窄压力窗口控压钻井技术进展及应用  

Innovations in Managed Pressure Drilling Technology Solution to Deepwater Narrow Pressure Window

作　　者：张钦岳 殷志明 李滨 Zhang Qinyue;Yin Zhiming;Li Bin(CNOOC International Ltd.,Beijing 100027;CNOOC Research Institute Co.,Ltd.,Beijing 100027)

机构地区：[1]中国海洋石油国际有限公司,北京100027 [2]中海油研究总院有限责任公司,北京100028

出　　处：《石化技术》2021年第4期101-106,共6页Petrochemical Industry Technology

基　　金：国家重点研发计划(项目编号:2017YFC0804500);中海油科技项目“海上精准控压钻井技术研究及工程示范”、“深水钻井大数据深度挖掘及软件测试应用”联合资助。

摘　　要：深水钻井通常都面临恶劣海洋环境、海底低温高压、窄压力窗口、浅层地质风险、作业成本高等严峻挑战。为了解决深水钻井中遇到最具挑战的窄压力窗口难题,业界提出并发展了控制压力钻井技术。主要介绍了控制压力钻井技术概念以及在深水钻井中应用的几类控制压力钻井系统,包括表层动态压井钻井系统、连续循环钻井系统、环空压力动态控制钻井系统、双梯度钻井系统、泥浆帽钻井系统等。最后,通过介绍控压钻井系统在中海油墨西哥湾盐下超深水井的实际成功应用,为后续其他深水项目提供一定的借鉴。Deepwater drilling has always accompanied by some severe challenges like harsh marine environment,high pressure low temperature at seabed,narrow PPFG window,shallow geo-hazard,high operation cost etc.In order to tackle the narrow PPFG window issue,managed pressure drilling(MPD)technology has been developed decades ago.This paper introduces the concept of MPD technology as well as several types of MPD systems in deepwater drilling applications like dynamic kill drilling system,continuous circulation drilling system,Dynamic Annular Pressure Control system,dual gradient drilling systems,mud cap drilling system etc.And the paper presented the success application of MPD technology in one of the CNOOC’s sub salt ultradeepwater wells in GOM which may give some reference for future deepwater projects.

关 键 词：深水钻井 窄压力窗口 控制压力钻井 盐下超深水 

分 类 号：TE52[石油与天然气工程—油气田开发工程]