冀中坳陷饶阳凹陷浅水曲流河三角洲沉积体系——以赵皇庄——肃宁地区沙一段为例  

Depositional system of shallow-water meandering river delta:a case from the first member of Shahejie Formation in Zhaohuangzhuang-Suning area of Raoyang Sag,Jizhong Depression

作　　者：朱茂 朱筱敏[2] 曾洪流 董艳蕾[2] 刘畅[2] 郑荣华 

机构地区：[1]中国石油杭州地质研究院,杭州310023 [2]中国石油大学(北京)地球科学学院,北京102249 [3]Bureau of Economic Geology,Jackson School of Geosciences,The University of Texas at Austin [4]中国石油华北油田分公司勘探开发研究院,河北任丘062552

出　　处：《岩性油气藏》2017年第2期59-67,共9页Lithologic Reservoirs

基　　金：国家自然科学基金项目"陆相坳陷湖盆浅水三角洲地震沉积学模型"(编号:41272133);华北油田校企合作项目"2012年饶阳凹陷赵皇庄东-肃宁地区地震沉积学工业化应用研究"(编号:HBYT-2012-JS-188)联合资助

摘　　要：冀中坳陷饶阳凹陷沙河街组沙一段是该区主要含油层系之一。为了落实沙一段砂体展布特征,明确该区下一步勘探方向,综合岩心、测井及三维地震等资料,开展饶阳凹陷赵皇庄—肃宁地区沙一段沉积体系研究。结果表明:沙一段沉积时期,赵皇庄—肃宁地区主要发育浅水曲流河三角洲,湖盆面积小,水体浅、能量弱,湖岸线迁移频繁;湖平面的周期振荡造成了岩性呈砂泥岩互层状、泥岩颜色为红黑相间的特征;浅水曲流河三角洲的水下分流河道极为发育,并且三角洲前缘分流河道易遭受不同程度的席状砂化,平面上呈网状分布。整体而言,沙一段发育的分流河道砂体平面分布广、纵横叠置,是有利的储集体。The first member of Shahejie Formation （Esl） is one of the main oil-bearing series in Raoyang Sag, Jizhong Depression. In order to define the reservoir distribution and exploration prospects, The sedimentary sys- tem of Esl in Zhaohuangzhuang-Suning area of Raoyang Sag were studied based on the data of cores, logging and seismic. The results show that shallow-water meandering river delta is widely developed during the Es~ depo- sitional stage, which is characterized by small lake basin, shallow water, low water energy and frequent migra- tion of lake strandline. Periodic oscillation of lake level resulted in the interbeds of sandstone and mudstone, and the alternation of red and black mudstones. The sheeted net-shaped subaqueous distributary channel is well developed in the shallow-water meandering river delta. The distributary channel sandbodies are widely distributed and vertically superimposed. These features are favorable for reservoir space.

关 键 词：浅水曲流河三角洲 分流河道 冀中坳陷 沙一段 赵皇庄—肃宁地区 

分 类 号：TE121.3[石油与天然气工程—油气勘探]