天然气工业2017，Vol.37Issue(4)：1-8,8.DOI:10.3787/j.issn.1000-0976.2017.04.001
深井超深井钻完井技术现状、挑战和“十三五”发展方向
Technologies in deep and ultra-deep well drilling: Present status, challenges and future trend in the 13th Five-Year Plan period (2016-2020)
摘要
Abstract
During the 12th Five-Year Plan period (2011-2015),CNPC independently developed a series of new drilling equipment,tools and chemical materials for deep and ultra-deep wells,including six packages of key drilling equipments:rigs for wells up to 8 000 m deep,quadruple-joint-stand rigs,automatic pipe handling devices for rigs for wells being 5 000/7 000 m deep,managed pressure drilling systems & equipments,gas/fuel alternative combustion engine units,and air/gas/underbalanced drilling systems;seven sets of key drilling tools:automatic vertical drilling tools,downhole turbine tools,high-performance PDC bits,hybrid bits,bit jet pulsation devices,no-drilling-surprise monitoring system,& casing running devices for top drive;and five kinds of drilling fluids and cementing slurries:high temperature and high density water-based drilling fluids,oil-based drilling fluids,high temperature and large temperature difference cementing slurry,and ductile cement slurry system.These new development technologies have played an important role in supporting China's oil and gas exploration and development business.During the following 13th Five-Year Plan period (2016-2020),there are still many challenges to the drilling of deep and ultra-deep wells,such as high temperatures,high pressures,narrow pressure window,wellbore integrity and so on,as well as the enormous pressure on cost reduction and efficiency improvement.Therefore,the future development trend will be focused on the development of efficient and mobile rigs,high-performance drill bits and auxiliary tools,techniques for wellbore integrity and downhole broadband telemetry,etc.In conclusion,this study will help improve the ability and level of drilling ultra-deep wells and provide support for oil and gas exploration and development services in China.关键词
深井/超深井/钻井/技术/进展/挑战/规划/中国石油天然气集团公司Key words
Deep well/Ultra-deep well/Drilling techniques/Progress/Challenge/Strategy/CNPC引用本文复制引用
汪海阁,葛云华,石林..深井超深井钻完井技术现状、挑战和“十三五”发展方向[J].天然气工业,2017,37(4):1-8,8.基金项目
国家自然科学基金石油化工联合基金重点支持项目“深层高温高压油气井安全高效钻完井基础研究”(编号:U1562212)、国家科技重大专项“大型油气田及煤层气开发”课题20“深井超深井钻井关键技术与装备”(编号:2016ZX05020-003). （编号:U1562212）
