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

发布时间：2018-05-03 13:03

本文选题：浅水曲流河三角洲 + 分流河道　；参考：《岩性油气藏》2017年02期

【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。
[Abstract]:Shahejie formation of Shahejie formation in Raoyang depression of Jizhong depression is one of the major oil-bearing strata in this area. In order to carry out the distribution characteristics of sand bodies in the first member of Shahejie formation, to make clear the next exploration direction in this area, and to synthesize the data of core, logging and 3D seismic data, the sedimentary system of the first member of Shahejie formation in Zhaowangzhuang Suning area of Raoyang depression is studied. The results show that the shallow meandering river delta is mainly developed in the Zhaowangzhuang-Suning area during the sedimentary period of the first member of Shahejie formation, the lake basin area is small, the water body is shallow, the energy is weak, and the shoreline migration is frequent, and the periodic oscillation of the lake plane results in the lithology of sandstone and mudstone interbedded. The color of mudstone is red and black, the subaqueous distributary channel in the shallow meandering river delta is very developed, and the distributary channel in the front of the delta is prone to different degree of sheet sand, and it is distributed in a network on the plane. As a whole, the distributary channel sand body developed in the first member of the sand section is a favorable reservoir because of its wide plane distribution and vertical and horizontal superposition.
【作者单位】：中国石油杭州地质研究院;中国石油大学(北京)地球科学学院;Bureau
【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
【分类号】：P618.13

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