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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。
Through the four major types of prototype basins such as the fault depression and depression in the Songliao Basin, the Mesozoic depression in the Ordos Basin, the fault depression and depression in the Bohai Bay Basin, the Mesozoic depression in the Junggar Basin, the foreland basin in western Sichuan and the Tarim Basin, Anatomy of 36 Typical Oil and Gas Reservoirs and Analysis of Reservoir Conditions for Large Oil and Gas Reservoirs. From the perspective of oil and gas accumulation area and prospecting area, the classification scheme system for lithologic reservoirs is improved. Three types of slopes, three kinds of depression centers, three kinds of reservoir assemblages and multiple types of lithologic reservoirs are revealed. Based on the understanding of the mechanism of accumulation and enrichment in different types of large oil and gas fields, the authors have established 6 categories of lithologic reservoir zones such as hydrocarbon source conditions, fault and transport systems, reservoir conditions, reservoir-cap assemblage, fluid properties and space-time matching Indicators, parameter system and grading standards. Combining the burial history, oil generation history, diagenesis history, tectonic history, trapping history and hydrocarbon accumulation history of the formation and evolution of oil and gas, a comprehensive evaluation of “Six Historical Studies” was made to evaluate and optimize the lithology reservoirs. It is predicted that future major petroleum exploration in the middle-shallow slope zone of the hydrocarbon-rich depression in the Songliao and Bohai Bay basins, the Mesozoic in the Ordos Basin and the Permian-Jurassic in the Junggar Basin will have a resource range of (42-67) 108 t , And the future major natural gas exploration in the deep volcanic rocks in the Songliao Basin, the Carboniferous in the Junggar Basin, the Cambrian in the Tarim Basin and the Sichuan Basin, the Permian-Triassic rim in the Sichuan Basin, and the resource scale of about 1.5 ~ 2.0) × 1012 m ~ 3.