中国岩性油气藏区带类型、地质特征与勘探领域  

Play types, geologic characteristics and exploration domains of lithological reservoirs in China

作　　者：陶士振[1] 袁选俊[1] 侯连华[1] 朱如凯[1] 杨帆[1] 李昌伟[1] 王岚 张国生[1] 李欣[1] 王颖[2] 孙国欣[3] 卫延召[1] 

机构地区：[1]中国石油勘探开发研究院 [2]中国石油吉林油田公司 [3]中国石油大庆油田有限责任公司

出　　处：《石油勘探与开发》2016年第6期863-872,939,共11页Petroleum Exploration and Development

基　　金：国家科技重大专项(2011ZX05001-001);中国石油科技项目(2014B-0608;2014B-0307)

摘　　要：通过松辽盆地断陷和坳陷、鄂尔多斯盆地中生界坳陷、渤海湾盆地断陷和坳陷、准噶尔盆地中生界坳陷、川西前陆盆地、塔里木克拉通盆地等4大类原型盆地36个典型油气藏解剖和大油气区成藏条件分析,从油气聚集区域和勘探选区的角度,完善岩性油气藏区带分类方案体系。揭示了3类斜坡、3种凹陷中心、3种成藏组合、多种成因类型的岩性油气藏成藏特征和主控因素。基于不同类型大油气区成藏机制与富集规律认识,建立烃源条件、断层及输导体系、储集条件、储盖组合、流体性质和时空匹配等岩性油气藏区带6大类评价指标、参数体系及分级标准。结合油气形成演化的埋藏史、生油史、成岩史、构造史、圈闭史和成藏史等"六史"综合评价研究,进行岩性油气藏区带评价优选。评价预测松辽和渤海湾盆地富油气凹陷中浅层斜坡带、鄂尔多斯盆地中生界、准噶尔盆地二叠系—侏罗系等未来主要石油勘探领域,资源规模约(42~67)×108 t,以及松辽盆地深层火山岩、准噶尔盆地石炭系、塔里木盆地和四川盆地寒武系、四川盆地二叠系—三叠系台缘台内礁滩等未来主要天然气勘探领域,资源规模约(1.5~2.0)×1012 m^3。By dissecting thirty-six representative oil-gas reservoirs and analyzing accumulation conditions of giant oil and gas provinces in four prototype basins, including the Songliao Rift and Depression Basin, the Mesozoic Ordos Depression Basin, the Bohai Bay Rift and Depression Basin, the Mesozoic Junggar Depression Basin, the West Sichuan Foreland Basin and the Tarim Craton Basin, the hydrocarbon plays classification scheme of lithological reservoirs is established and improved from the perspective of oil-gas accumulation zone and exploration area selection. The results revealed the accumulation characteristics and controlling factors of lithological reservoirs of multiple origins in three kinds of slopes, three kinds of sag centers and three kinds of hydrocarbon accumulation assemblages. Based on the understandings on reservoir formation mechanisms and enrichment regularities of different hydrocarbon provinces, six major assessment indexes, parameter system and grading standard of lithological plays are established, including hydrocarbon source rock condition, transportation pathway, reservoir condition, reservoir-cap assemblage, fluid property, and time-space configuration etc. Through comprehensive analysis of burial history, hydrocarbon-generation history, digenesis history, tectonic history, trap-forming history and accumulation history, plays of lithological reservoirs are evaluated and optimized. The results show the middle-shallow layers in the slope zones of the Songliao and Bohai Bay Basins oil-rich sags, the Mesozoic in the Ordos Basin, the Permian-Jurassic in the Junggar Basin, etc. are the major oil exploration areas in the future, with oil resources of about 42×10^8 t–67×10^8 t; the deep volcanic rocks of the Songliao Basin, the Carboniferous of the Junggar Basin, the Cambrian of the Tarim and Sichuan Basins, the Permian-Triassic reefs and shoals within the platform and on the platform margin of the Sichuan Basin are the major gas exploration areas in the future, with the gas resources of about 1.5

关 键 词：岩性油气藏 岩性圈闭 区带类型 区带评价方法 聚集规律 勘探领域 

分 类 号：TE122[石油与天然气工程—油气勘探]