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渤海湾盆地东营凹陷现河庄油田河31断块区输导体系特征与成藏规律
石油与天然气地质
2009年 30卷 第No.1期
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Title
Control effects of carrier systems on hydrocarbon pooling in the He-31 block of Xianhezhuang oilfield,the Dongying Sag of the Bohai Bay Basin
Authors
Liu Hua
Ren Jinglun
Jiang Youlu
摘要
东营凹陷现河庄油田河31区块输导体系特征及其与中浅层油气藏成藏规律的关系表明,对油气运移起重要作用的输导体系主要有断层和砂体,油气的富集不单独受控于砂体和断层的分布,断-砂时空配置关系决定了输导体系的有效性,决定了中浅层(特别是沙河街组一段)油藏的形成与分布,其中二级断层及晚期派生断层对油气的输导具有明显的控制作用,与其连通性较好的砂体是油气运移的主要指向区。
Abstract
The characteristics of carrier system and its relationship with the distribution of middle-shallow hydrocarbon pools in the He-31 block of the Xianhe oilfield in the Dongying Sag show that faults and sandbodies dominate the hydrocarbon carrier system in the block.The distribution of sandbodies and faults is not the only factor that control hydrocarbon enrichment in the study area.The spatial and temporal configurations of faults and sandbodies also control the effectiveness of carrier system,thus determine the formation and occurrence of the oil reservoirs in the middle-shallow layers(especially the Es).The second-order faults and later induced faults are important to hydrocarbon migration.At the same time,the sandbodies well connected with these faults are the main destination of hydrocarbon migration.
关键词：
断层;
输导体系;
油气运聚;
现河庄油田;
东营凹陷;
渤海湾盆地;
Keywords:
fault;
carrier system;
petroleum migration and accumulation;
Xianhezhuang oilfield;
Dongying Sag;
Bohai Bay Basin;
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