雪峰山西侧地区埃迪卡拉系层序格架下的生储盖组合特征
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中国地质调查局项目“桑植—石门及邻区油气地质综合调查及地层对比研究”(1212011220745)资助。


Source-reservoir-cap rock combination based on sequence framework of the Ediacaran system in western Xuefeng Mountain area
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    提要:采用“从岩相到米级旋回,从沉积相到层序划分”的层序地层研究方法,详细划分和描述了雪峰山西侧地区埃迪卡拉系区域上可以较好对比的2个二级层序和7个三级层序。并从层序格架出发,以储层为中心、重点研究储层和烃源岩的时空分布,综合考虑影响成藏的烃源岩和盖层与储集层的匹配关系,将埃迪卡拉系碳酸盐岩油气生储盖组合划分为界面型、海侵型和高位型3种类型。研究结果显示研究区受层序界面控制的生储盖组合具备最优越的原始地质条件,高位型组合通常与岩溶或界面型组合共生,也是构成有效性明显的一类生储盖组合。

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    Abstract:This paper divided and depicted in detail two second-order sequences and seven third-order sequences which are regionally well correlatable according to the Ediacaran system, by employing the research method of sequence stratigraphy “from lithofacies to meter-scale cycle,from depositional facies to sequence classification”. With the reservoir as the center, the authors mainly studied the temporal and spatial distribution of source rocks and reservoirs based on sequence framework, and comprehensively considered the matching relationship of source rocks and cover rock affecting reservoir formation. The source-reservoir-cap rock combinations in carbonate rock of the Ediacaran system were divided into 3 types, i.e., boundary type, transgression type and high water type. The findings indicate that the source-reservoir-cap rock combinations associated with sequence boundary in the study area have the most superior initial geological condition, the high water type is usually combined with the karst or boundary type, thus serving as another source-reservoir-cap rock combination with obvious effectiveness.

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李旭兵 赵 灿 刘 安 危 凯 李继涛. 雪峰山西侧地区埃迪卡拉系层序格架下的生储盖组合特征[J]. 中国地质, 2013, 40(5): 1493-1504.
LI Xu-bing, ZHAO Can, LIU An, WEI Kai, LI Jitao. Source-reservoir-cap rock combination based on sequence framework of the Ediacaran system in western Xuefeng Mountain area[J]. Geology in China, 2013, 40(5): 1493-1504(in Chinese with English abstract).

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  • 在线发布日期: 2013-10-22
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