海陆对比看南黄海海相中—古生界的生储盖组合特征

发布时间：2019-01-07 16:13

【摘要】：作为下扬子主体的南黄海盆地发育分布广泛、厚度大且较全的中—古生代海相地层,通过对比扬子陆域的烃源岩、储层及盖层特征,结合南黄海盆地近几年采集的地震剖面、钻井资料以及陆上野外露头资料,总结和分析了南黄海海相中—古生界的生储盖组合特征。南黄海海相地层发育下寒武统荷塘组/幕府山组、下志留统高家边组、下二叠统栖霞组和二叠系龙潭—大隆组4套烃源岩,对比扬子区陆域烃源岩特征,确定为较好的烃源岩。苏北—南黄海盆地储集层以碳酸盐岩为主,发育白云岩孔隙储层、礁滩相储层、风化壳储层和裂隙储层4种类型。研究认为南黄海发育扬子陆区已发现的典型油气藏的成藏层位,海相地层发育3套区域性的盖层和3套完整的生储盖组合,具有很好的油气远景。
[Abstract]:The South Huang Hai basin, which is the main body of Lower Yangtze, is widely distributed, thick and complete in the Mesozoic and Paleozoic marine strata. By comparing the source rocks, reservoirs and caprocks of the Yangtze land area, combined with the seismic profiles collected in recent years in the South Huang Hai Basin, Drilling data and outcrop data on land are summarized and analyzed in this paper. Four sets of source rocks are developed in the marine strata of southern Huang Hai: Hetang formation / shunfushan formation of Lower Cambrian Series, Gaojiabian formation of Lower Silurian Series, Qixia formation of Lower Permian and Longtan Dalong formation of Permian system. Compared with the characteristics of source rocks in continental area of Yangtze area, they are determined to be better source rocks. Four types of reservoir are mainly carbonate rock, dolomite pore reservoir, reef and beach facies reservoir, weathering crust reservoir and fissure reservoir. It is considered that three sets of regional caprocks and three sets of intact reservoirs and caprock assemblages are developed in the marine strata of the typical oil and gas reservoirs in the Yangtze land area developed by southern Huang Hai, which has a good prospect of oil and gas.
【作者单位】：国土资源部海洋油气资源与环境地质重点实验室青岛海洋地质研究所;海洋国家实验室海洋矿产资源评价与探测技术功能实验室;
【基金】：国土资源部项目(XQ-2005-01,2009GYXQ10) 中国地质调查局项目(GZH200800503,121201005000150008) 山东省博士后创新基金“南黄海盆地二叠系上统相震约束储层表征研究”(201602004)资助
【分类号】：P618.13

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