【摘要】：為了進一步弄清冀中坳陷不同類型凹陷地層巖性油氣藏的分布規(guī)律與控制因素,根據(jù)各凹陷獨特的地質(zhì)結(jié)構(gòu)和沉積特征,將其細(xì)分為繼承型、偏移型和早盛型等3類。通過不同凹陷地層巖性油氣藏的分布特征,指出繼承型凹陷勘探面積最大、勘探前景最好,偏移型凹陷勘探潛力居中,而早盛型凹陷成藏條件相對較差,同時指出沉積體系與構(gòu)造背景配置在緩坡帶、陡坡帶和洼槽區(qū)等不同區(qū)帶均可形成不同類型的地層巖性油氣藏分布聚集區(qū)。主控因素分析認(rèn)為,地層超剝帶、巖相過渡帶、湖岸線變遷帶均是形成多種巖性或地層圈閉的有利區(qū)帶,不同類型的砂巖儲集體發(fā)生巖性、物性及接觸關(guān)系等變化強烈,為地層巖性圈閉發(fā)育提供了有利條件;有利成巖相帶和有利巖相帶共同控制了地層巖性油氣藏"甜點"的成群成帶富集,"五帶"附近是深化地層巖性油氣藏勘探的重要方向。
[Abstract]:In order to further understand the distribution and controlling factors of lithologic reservoirs in different types of sag in Jizhong depression, according to the unique geological structure and sedimentary characteristics of each sag, it can be divided into three types: inherited type, migration type and early flourishing type. According to the distribution characteristics of lithologic reservoirs in different sag, it is pointed out that the inherited sag has the largest exploration area, the best exploration prospect, the middle exploration potential of the migration depression, and the relatively poor reservoir forming condition in the Zusheng sag. At the same time, it is pointed out that different types of stratigraphic lithologic oil and gas reservoirs can be formed in different zones such as gentle slope zone, steep slope zone and depression zone. According to the analysis of main controlling factors, stratigraphic overstripping zone, lithofacies transitional zone and lacustrine line transition zone are all favorable zones for forming various lithology or stratigraphic traps. The lithology, physical properties and contact relationship of different types of sandstone reservoirs are changed strongly. The favorable diagenetic facies belt and favorable lithofacies belt together control the accumulation of stratigraphic lithologic reservoir "desserts" in groups, and the vicinity of "five zones" is the important direction to deepen the exploration of stratigraphic lithologic reservoirs.
【作者單位】： 中國石油大港油田分公司;中國石油華北油田分公司勘探開發(fā)研究院;中國石油大學(xué)(北京)地球科學(xué)學(xué)院;
【基金】：國家重大科技專項“冀中坳陷增儲領(lǐng)域精細(xì)地質(zhì)評價與勘探實踐”(編號:2011ZX05006-005-003) 中國石油股份有限公司重大科技攻關(guān)項目“成熟盆地油氣成藏機制與精細(xì)勘探目標(biāo)評價”(編號:2011D-0703)聯(lián)合資助
【分類號】：P618.13

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相關(guān)期刊論文 前8條

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