中国石化页岩气超长水平段水平井钻井技术新进展与发展建议  

New Progress and Development Proposals of Sinopec’s Drilling Technologies for Ultra-Long Horizontal Shale Gas Wells

作　　者：袁建强 YUAN Jianqiang(Sinopec Oilfield Service Corporation,Beijing,100020,China)

机构地区：[1]中石化石油工程技术服务股份有限公司,北京100020

出　　处：《石油钻探技术》2023年第4期81-87,共7页Petroleum Drilling Techniques

基　　金：中国石化十条龙项目“复兴侏罗系陆相页岩油气水平井钻完井技术”(编号:P21078-6)资助。

摘　　要：为实现页岩气超长水平段水平井高效开发,中国石化围绕页岩气地质选区评价、装备配套、降摩减阻、低成本高效地质导向、钻井参数分层优化、长寿命高效破岩工具及高效固井等技术进行攻关研究,成功实施了水平段长度超过2700 m的水平井15口、超过3000 m的水平井5口,初步形成了4000 m页岩气超长水平段水平井钻井技术,有力支撑了东胜区块、焦石坝区块等页岩气的高效开发。概述并分析了中国石化页岩气超长水平段水平井钻井技术的新进展,分析认为,与国外相比,中国石化页岩气超长水平段水平井钻井技术仍存在较大差距,因此建议重点攻关地质选区及评价、关键提速工具、高效钻井液体系、降摩减阻和套管下入与长效封固等关键工具与技术,为实现超长水平段水平井安全高效钻井提供技术支撑。In order to achieve the efficient development of ultra-long horizontal shale gas wells,Sinopec made breakthroughs in technologies such as evaluation of geological area selection,supporting equipment,friction reduction,low-cost and efficient geo-steering,layered optimization of drilling parameters,long-life and efficient rock breaking tools,and efficient cementing,etc.As a result,15 horizontal wells with a horizontal section of more than 2700 m and 5 wells with a horizontal section exceeding 3000 m have been drilled.The technical system for the drilling of horizontal shale gas wells with an ultra-long horizontal section of 4000 m was formed preliminarily.The above have provided strong support for efficient shale gas development in the Dongsheng Block and the Jiaoshiba Block.However,there is still a big gap between Sinopec’s shale gas ultra-long horizontal well drilling technologies and those of foreign countries.Hence,it was suggested that breakthroughs should be mainly made in tools and technologies including the selection and evaluation of geological areas,key speed-up tools,efficient drilling fluid systems,friction reduction techniques,and casing running and long-term cementing technologies,etc.In this way,it would provide technical support for realizing safe and efficient ultra-long horizontal well drilling.

关 键 词：页岩气水平井 超长水平段 钻井技术 技术进展 发展建议 中国石化 

分 类 号：TE243[石油与天然气工程—油气井工程]