中国陆相致密油开采技术发展策略思考  

Technical Strategy Thinking for Developing Continental Tight Oil in China

作　　者：张映红[1] 路保平[1] 陈作[1] 蒋海军[1] 

机构地区：[1]中国石化石油工程技术研究院,北京100101

出　　处：《石油钻探技术》2015年第1期1-6,共6页Petroleum Drilling Techniques

基　　金：中国工程院战略研究课题"中国致密油发展战略研究";中国石化科技创新基础研究项目"中国石化致密油工程技术发展策略研究"(编号:P14143)联合资助

摘　　要：中国陆相致密油藏主要有咸化湖、淡水湖两种基本类型。其中,咸化湖致密油成藏组合多为毯式结构,储层主要为细碎屑岩/碳酸盐岩复合体,可压性接近北美海相致密油藏,但原油流动性较差、储层非均质性较强;淡水湖致密油成藏组合为箱式或毯式结构,储层主要为砂岩及含油页岩,可压性较差、工程参数敏感性较强、流动机制及压力系统复杂。在分析中国陆相致密油藏开采技术现状与问题的基础上,指出应采用"油藏导向、基础先行,逆向思维、辩证施治,注重原创、集成配套,由易到难、滚动发展"的开发策略,且不同类型致密油藏应采用不同开发模式,需重点对陆相致密油藏甜点描述与评价、协同地质导向、增大储层接触面积钻井、精细复合压裂、致密油原位改质、提高采收率技术等关键技术进行攻关研究。China＇s continental tight oil reservoirs were mainly two types that originated from saline lake and fresh water lake.The saline lake tight oil reservoir looks like blanket structure,which composed fine clastic rock with carbonate.Its compressibility was close to that of North American marine tight oil reservoir,with poor fluidity of crude oil and strong heterogeneity of formation.The fresh water lake tight oil reservoir likes blanket or box structure,including mainly sandstone and shale,with poor compressibility,varied pore pressures and different fluidity of crude oil,more sensitive to engineering parameters.On the basis of analyzing the developing status and problems of China＇s continental tight oil,aproposal was presented for development of tight oil that＂taking the reservoir engineering as guidance,with good foundation,reversed thinking,diagnosis and treatment,continuous innovation,a complete of technologies integrated,rolling development of it from easy to difficult operations＂.Different types of tight oil reservoirs should be developed in different modes.The key technologies should be researched,including sweet point description and evaluation,the theory of drilling the limit,coordinated with geo-steering drilling,fine composite fracturing,the performance of tight oil changed inside the reservoir,integration of fracturing and production,etc.

关 键 词：陆相致密油 地质特征 发展策略 关键技术 中国 

分 类 号：TE348[石油与天然气工程—油气田开发工程]