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| 大王北洼陷浅水漫湖砂质滩坝沉积微相特征 | |
| 引用本文： | 冯兴雷,马立祥,邓宏文,涂智杰,林会喜.大王北洼陷浅水漫湖砂质滩坝沉积微相特征[J].地质科技情报,2009,28(1). |
| 作者姓名： | 冯兴雷 马立祥 邓宏文 涂智杰 林会喜 |
| 作者单位： | 1. 中国地质大学研究生院,武汉,430074 2. 中国地质大学资源学院,武汉,430074 3. 中国地质大学能源学院,北京,100083 4. 中国石油化工股份有限公司胜利油田分公司地质科学研究院,山东,东营,257015 |
| 基金项目： | 中国石油化工股份有限公司胜利油田分公司项目 |
| 摘 要： | 通过岩心精细的观察,结合测井、三维地震以及岩石鉴定分析等资料的综合研究发现,大王北洼陷沙二段盆地断坳期为浅水漫湖砂质滩坝沉积,可分为:滩、坝主体、坝侧缘、坝间4种沉积微相,其中坝主体的成分成熟度和结构成熟度较高,且坝主体砂层最厚,滩、坝侧缘和坝间砂体次之.另外,沙二段时期盆地内河流三角洲不发育,大量坝砂呈条带状沿岸或斜交岸线发育,滩砂呈席状大面积覆盖于盆内与坝砂和其他沉积砂体相连,构成了洼陷"满盆砂"的浅水漫湖沉积的特征.这些砂体规律性地分布于洼陷内,并且与油源邻近(沙三段中部油页岩),是有利的油气储集体,与油气富集密切相关. |
| 关 键 词： | 浅水漫湖 砂质滩坝 微相 沉积模式 |
Microfacies Characters of Sandy Beach and Bar in Shallow Water Over-lake,with an Example from the Dawangbei Sag |
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| FENG Xing-lei,MA Li-xiang,DENG Hong-wen,TU Zhi-jie,LIN Hui-xi.Microfacies Characters of Sandy Beach and Bar in Shallow Water Over-lake,with an Example from the Dawangbei Sag[J].Geological Science and Technology Information,2009,28(1). | |
| Authors: | FENG Xing-lei MA Li-xiang DENG Hong-wen TU Zhi-jie LIN Hui-xi |
| Institution: | 1a.Graduate School;1b.Faculty of Earth Resources;China University of Geosciences;Wuhan 430074;China;2.School of Energy Resources;Beijing 100083;3.Geological Research Institute of Shengli Oilfield Branch Corporation;SINOPEC;Dongying Shandong 257015;China |
| Abstract: | The careful observations of core data,logging and 3D-seismic and petrographic analysis reveal that the 2nd member of the Shahejie Formation in the Dawangbei Sag consists of sandy beach and bar of shallow water over-lake.The sandy beach and bar of shallow water over-lake can be divided into four microfacies:beach,key bar,side-portion of bar and between-portion of bar.Among them,the key bar has a very high textural maturity and compositional maturity and a little thicker than beach,side-portion of bar and bet... |
| Keywords: | shallow water over-lake sandy beach and bar microfacies sedimentary model |
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