| 辽河断陷西部凹陷沙三段沉积相及相模式 |
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| 引用本文： | 张震,鲍志东,童亨茂,王勇.辽河断陷西部凹陷沙三段沉积相及相模式[J].高校地质学报,2009,15(3). |
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| 作者姓名： | 张震 鲍志东 童亨茂 王勇 |
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| 作者单位： | 1. 中国石油大学资源与信息学院,北京,102200;中国石油大学油气资源与探测国家重点实验室,北京,102200
2. 中国石油大港油田博士后工作站,天津,300280 |
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| 基金项目： | 中国石油天然气油气勘探超前共性科技项目 |
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| 摘 要： | 西部凹陷沙河街组三段沉积厚度大,分布范围广是深层储层的重要组成部分.通过对沙三段岩芯、钻/测井和地震资料的研究,识别出冲积扇、扇三角洲、近岸浊积扇、远岸浊积扇、断槽重力流水道、滑塌浊积扇及湖泊等7种沉积相类型,其中扇三角洲和浊积扇中各砂体微相的相互重叠构成区内最好的储层;该区沙三段沉积时期主要发育5套沉积体系,以冲积扇-扇三角洲一湖底扇沉积体系为主;在沙三段早中期,湖盆为水进沉积序列.西斜坡发育的扇三角洲和远岸浊积扇的砂体逐渐东移,展布范围逐渐扩大.而东陡坡扇三角洲中各亚相相带逐渐变窄,近岸浊积扇砂体呈长条状展布;到沙三段晚期.湖盆为水退沉积序列,西斜坡砂体展布范围、砂体厚度基本继承了前期的特征,东陡坡扇三角洲内各亚相相带逐渐变宽,并且向湖盆凹陷中心推进;沉积相带展布与迁移特征反映了古地形、边界同生断层、湖平面的相对变化以及物源的供给量等因素对沉积格局的控制.
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| 关 键 词： | 沉积相 沉积模式 沙三段 西部凹陷 辽河断陷 |
Sedimentary Facies and Facies Model of the 3~(rd) Member of Shahejie Formation in the Western Sag,Liaohe Fault Basin |
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| ZHANG Zhen,BAO Zhi-dong,TONG Heng-mao,WANG Yong.Sedimentary Facies and Facies Model of the 3~(rd) Member of Shahejie Formation in the Western Sag,Liaohe Fault Basin[J].Geological Journal of China Universities,2009,15(3). |
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| Authors: | ZHANG Zhen BAO Zhi-dong TONG Heng-mao WANG Yong |
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| Institution: | 1.School of Resources and Information;China University of Petroleum;Beijing 102200;China;2 .State Key Laboratory of Petroleum Resource and Prospecting;3 .Working Station for Postdoctoral Scientific Research;PetroChina Dagang Oilfield Company;Tianjin 300280;China |
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| Abstract: | The sandbodies in the 3rd Member of Shahejie Formation in Western Sag with a huge sedimentary thickness and a wide distribution are the most important reservoirs for petroleum accumulation in the deeply buried sequences in Liaohe basin.Based on core,drilling,logging and seismic data,seven types of sedimentary facies are identified in this area,i.e.,alluvial fan,fan delta,beachy turbidite fan,off-shore turbidite fan,fault trough gravity flow channel,slump turbidite fan and lacustrine facies,in which the mult... |
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| Keywords: | sedimentary facies depositional model the 3rd Member of Shahejie Formation Western Sag Liaohe fault basin |
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