摘要
我国于2010年实施第一口页岩气井压裂,历经10年的发展,已经成为全球第二个掌握页岩气开发核心技术的国家,实现了页岩气压裂技术从无到有、从跟跑到部分领跑的发展跨越,创建形成了适合于我国中浅层海相页岩气开发的压裂理论与技术体系。为了助推我国页岩气产量实现新的跃升,在梳理中美两国页岩气压裂技术发展进程的基础上,全面回顾了我国在页岩气压裂基础理论与优化设计方法、液体体系、压裂工具及工艺技术方面的发展历程与进展现状,总结了压裂甜点识别、缝网扩展模拟与调控、岩体水化与返排控制、缝网体积评价表征等基础理论与优化方法的研究成果;论述了滑溜水压裂液体系、少水或无水新型压裂液的研制与应用;评价了可钻复合桥塞、可溶性桥塞、大通径桥塞和套管固井滑套等分段压裂工具的发展与自主研发水平;阐述了现场工艺技术的实施状况,包括早期实施的常规分段分簇压裂到目前的“密簇”压裂、暂堵压裂等。在此基础上,系统分析了目前我国页岩气压裂技术面临的挑战,展望了相关技术的发展方向。结论认为,我国需要持续开展适合于国内深层—超深层海相页岩气、陆相—海陆过渡相页岩气的压裂理论与技术方法攻关研究,以支撑和助推未来我国页岩气高效开发。
The first fractured shale gas well of China was constructed in 2010.After 10 years of development,China has become the second country that possesses the core technology of shale gas development around the world,realized the shale gas fracturing techniques from zero to one and from lagging to partially leading,and constructed the fracturing theory and technology system suitable for middle-shallow marine shale gas exploitation.In order to provide beneficial guidance for the efficient exploitation of shale gas in China in the future,this paper comprehensively reviews development history and status of domestic fundamental theories,optimized design methods,fluid systems,tools and technologies of shale gas fracturing and summarizes the research results in fundamental theories and optimized design methods,such as fracturing sweet-spot cognition,fracture network propagation simulation and control,rock hydration and flowback control,and SRV(stimulated reservoir volume)evaluation and characterization.The development and application of slick-water fracturing fluid system and new fracturing fluid with little or no water is discussed.The development and independent research&development level of multi-stage fracturing tools are evaluated,including drillable composite plug,soluble plug,large-diameter plug and casing cementing sleeve.The implementation situations of field technologies and processes are illustrated,including the early conventional multi-stage multi-cluster fracturing and the current"dense cluster"fracturing and temporary plugging fracturing.Based on this,the current challenges to domestic shale gas fracturing technologies are analyzed systematically,and the development direction of related technologies is forecast.In conclusion,it is necessary for China to continuously research the fracturing theories,technologies and methods suitable for domestic deep and ultra-deep marine shale gas,continental shale gas and transitional shale gas to facilitate the future efficient development of shale gas in China.
作者
赵金洲
任岚
蒋廷学
胡东风
吴雷泽
吴建发
尹丛彬
李勇明
胡永全
林然
李小刚
彭瑀
沈骋
陈曦宇
尹庆
贾长贵
宋毅
王海涛
李远照
吴建军
曾斌
杜林麟
ZHAO Jinzhou;REN Lan;JIANG Tingxue;HU Dongfeng;WU Leize;WU Jianfa;YIN Congbin;LI Yongming;HU Yongquan;LIN Ran;LI Xiaogang;PENG Yu;SHEN Cheng;CHEN Xiyu;YIN Qing;JIA Changgui;SONG Yi;WANG Haitao;LI Yuanzhao;WU Jianjun;ZENG Bin;DU Linlin(State Key Laboratory of Oil&Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China;Sinopec Research Institute of Petroleum Engineering,Beijing 100101,China;Sinopec Exploration Company,Chengdu,Sichuan 610041,China;Sinopec Jianghan Oilfield Company,Wuhan,Hubei 430000,China;Shale Gas Research Institute,PetroChina Southwest Oil&Gasfield Company,Chengdu,Sichuan 610051,China;CNPC Chuanqing Drilling Engineering Co.,Ltd.,Chengdu,Sichuan 610051,China;Sinopec Chongqing Fuling Shale Gas Exploration and Development Co.,Ltd.,Chongqing 408014,China;PetroChina Coalbed Methane Co.,Ltd.,Beijing 100028,China;Gepetto Oil Technology Co.Ltd.,Beijing 100102,China;Orient Baolin Technology Development<Beijing>Co.,Ltd.,Beijing 100083,China)
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2021年第8期121-142,共22页
Natural Gas Industry
基金
国家重点基础研究发展计划(973计划)“中国南方海相页岩气高效开发的基础研究”(编号:2013CB228004)
国家自然科学基金重大项目“页岩油气高效开发基础理论”(编号:51490653)
四川省科技支撑计划项目“页岩气水平井压裂技术研究与现场试验”(编号:2015SZ0003)
国家科技重大专项“涪陵页岩气压裂技术研究”(编号:2016ZX05060-016)
国家科技重大专项“涪陵页岩气复杂裂缝形成条件压力分析及SRV评估分析”(编号:2016ZX05060-018)
国家科技重大专项“页岩气水平井体积压裂及排采技术研究与试验”(编号:2016ZX05062-004)
中国石油大庆油田科研项目“海拉尔布达特组缝网压裂机理研究”(编号:DQYT-0516002-2011-JS-67)等。
关键词
中国
页岩气
缝网压裂
压裂理论
压裂技术
液体与工具
深层—超深层海相页岩气
陆相—海陆过渡相页岩气
China
Shale gas
Network fracturing
Fundamental theory
Fracturing technology
Fluid and tools
Deep/ultra-deep marine shale gas
Terrestrial/marine-terrestrial transitional shale gas
作者简介
赵金洲,1962年生,教授,本刊编委,主要从事油气藏压裂酸化理论与应用方面的科研和教学工作,现任西南石油大学校长。地址:(610500)四川省成都市新都区新都大道8号。ORCID:0000-0003-1686-1828。E-mail:zhaojz@swpu.edu.cn;通信作者:任岚,1979年生,教授,博士,主要从事油气藏压裂酸化理论与应用方面的科研和教学工作。地址:(610500)四川省成都市新都区新都大道8号。ORCID:0000-0002-4234-4413。E-mail:renlanswpu@163.com。
