万米超深层油气钻完井关键技术面临挑战与发展展望  

Challenges and Development Prospects of Oil and Gas Drilling and Completion in Myriametric Deep Formation in China

作　　者：孙金声 刘伟 王庆[1,2] 黄洪春 纪国栋 SUN Jinsheng;LIU Wei;WANG Qing;HUANG Hongchun;JI Guodong(CNPC Engineering Technology R&D Company Limited,Beijing 102206,China;National Engineering Research Center of Oil&Gas Drilling and Completion Technology,Beijing 102206,China)

机构地区：[1]中国石油集团工程技术研究院有限公司 [2]油气钻完井技术国家工程研究中心 [3]中国工程院

出　　处：《钻采工艺》2024年第2期1-9,共9页Drilling & Production Technology

基　　金：中国石油天然气集团公司项目“万米超深层油气资源钻完井关键技术与装备研究”(编号:2022ZG06)。

摘　　要：万米超深层油气科学探索是践行国家“四深”探测计划的重要任务,也是推动实现我国能源战略接替、保障国家能源安全的重要举措。现有钻井工程技术对于实现钻达万米超深层的地质目标,存在众多瓶颈难题,包括:超大吨位钻具提升、极限深度井身结构拓展、超深特深层高效破岩提速、多因素耦合井壁稳定控制、耐超高温高压井下工具等,亟需在12 000 m自动化钻机、P110钢级膨胀管、减振增能工具、超高温高压井壁稳定与钻井液降摩阻技术、耐高温螺杆、机械式随钻测斜仪等关键核心攻关突破。因此中国石油深入开展研究,并在2023年启动了两口万米深地科探井任务,进一步加速相关技术研发进程,取得阶段性成果,正逐步形成“打成、打快、打好”万米超深层油气钻井技术体系,助力我国早日实现油气工程技术制高点、石油科技高水平自立自强。It is one of the important tasks for the national Four-Deep exploration plan to conduct scientific exploration of ultra deep oil and gas at myriametric deep,as well as an important measure to promote the strategic replacement of China′s energy and ensure national energy security.The available drilling engineering technology can hardly achieve the geological goal of drilling up to 10,000 meters deep,and there are many bottleneck problems,including lifting of ultra large tonnage drilling tools,expansion of extreme-deep wellbore structure,efficient rock breaking and ROP optimization in ultra deep&ultra-deep layers,multi-factor coupling control of wellbore stability,and downhole tools resistant to high temperature&high pressure.There is an urgent need to make breakthroughs in the key core technologies such as 12,000 meter automated drilling rigs,P110 steel grade expansion pipes,vibration reduction and energy enhancement tools,ultra-high temperature and high-pressure wellbore stability and drilling fluid friction reduction technology,screws resistant to high-temperature,and mechanical inclinometers while drilling.Therefore,CNPC has conducted in-depth research and started two exploration wells over 10,000 meters depth in 2023,in order to further accelerate the research and development process of related technologies and achieve phased achievement.A 10,000-meter ultra deep oil and gas drilling technology system is gradually forming featured by successful drilling,fast drilling and high-quality drilling,helping China achieve the commanding height of oil and gas engineering technology and high-level self-reliance and self-reliance in petroleum technology as soon as possible.

关 键 词：万米超深层 深地 科探井 超高温高压 

分 类 号：TE24[石油与天然气工程—油气井工程]