摘要
“深海一号”二期工程深水高压气田钻完井作业面临水下井口集中、干涉风险高,深层地质条件复杂、可钻性差,压力窗口窄、井控挑战大,高温高压、长效生产保障难等多重挑战。为此,开展了集中式水下井口规模化作业、深水深层钻完井提速、深水高压井安全控制、深水长效生产保障等技术攻关,形成了以安全、提速、长效生产为核心的深水高压气田钻完井技术。该技术在“深海一号”二期工程12口开发井的现场应用表明,与一期工程相比,钻井速度大幅提升,作业效率全面提升,项目工期大幅缩短,有力支撑了“深海一号”二期工程深水高压气田的顺利投产。“深海一号”二期工程的顺利完成,标志着我国自营深水钻完井技术实现了重大突破,也为国内外深水高压气田开发提供了借鉴。
The drilling and completion operations in deepwater oil and gas wells of the“Deep Sea No.1”Phase Ⅱ project face multiple challenges such as concentrated underwater wellheads,high interference risks,complex deep geological conditions,poor drillability,narrow pressure windows,difficult well control,high-temperature and highpressure,and difficulties in ensuring long-term production.To this end,technical researches on large-scale operation in centralized underwater wellheads,drilling speed increase in deep water and deep layer,deepwater high-pressure well safety control,and deepwater long-term production guarantee were carried out,and key technologies of drilling and completion in deepwater high-pressure gas fields with safety,speed increase,and long-term production as the core were formed.On-site applications in 12 development wells of the“Deep Sea No.1”Phase Ⅱ project demonstrate that the drilling speed has been greatly improved,and the operating efficiency has been comprehensively enhanced compared with that in the Phase Ⅰ project.The project duration has been greatly shortened,which strongly supports the smooth production of the deepwater high-pressure gas field of the“Deep Sea No.1”Phase Ⅱ project.The successful completion of the“Deep Sea No.1”Phase Ⅱ Project marks a great breakthrough in self-operated deepwater drilling and completion technologies in China and provides technical reference for the development of deepwater hightemperature and high-pressure gas fields in China and abroad.
作者
刘书杰
黄熠
陈浩东
罗鸣
蒋东雷
LIU Shujie;HUANG Yi;CHEN Haodong;LUO Ming;JIANG Donglei(Hainan Branch,CNOOC China Limited,Haikou,Hainan,570312,China)
出处
《石油钻探技术》
北大核心
2025年第3期20-29,共10页
Petroleum Drilling Techniques
基金
国家重点研发计划项目(编号:2022YFC06500)
中国海油“十四五”集团公司重大科技项目“深水超深水油气钻采和海洋工程技术”(编号:KJGG2021-0200)联合资助。
关键词
深水油气
高压油气田
工程技术
深海一号
二期工程
deepwater oil and gas
high-pressure oil and gas fields
engineering technology
Deep Sea No.1
Phase II project
作者简介
刘书杰(1966-),男,河南许昌人,1989年毕业于石油大学(华东)钻井工程专业,2002年获石油大学(北京)油气井工程专业硕士学位,2016年获中国石油大学(北京)安全工程与技术专业博士学位,正高级工程师,主要从事海上钻完井技术研究与管理工作。系本刊编委。E-mail:liushj@cnooc.com.cn。
