| 东海西湖凹陷平湖构造带异常压力与油气成藏 |
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| 引用本文： | 张先平,张树林,陈海红,叶加仁.东海西湖凹陷平湖构造带异常压力与油气成藏[J].海洋地质与第四纪地质,2007,27(3):93-97. |
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| 作者姓名： | 张先平 张树林 陈海红 叶加仁 |
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| 作者单位： | 1. 中国地质大学,资源学院,武汉,430074
2. 中国地质大学,国家重点实验室,武汉,430074 |
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| 基金项目： | 国家自然科学基金项目(40172051) |
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| 摘 要： | 东海陆架盆地西湖凹陷平湖构造带深部普遍发育异常高压,对研究区的异常压力的分布特征、主导成因及其对油气成藏的影响进行了系统研究。平湖构造带深部储层和泥岩现今普遍发育超压,且不同区带超压主导成因不同;超压对有机质的热演化和烃类的生成无明显影响,对储集层物性有保存和改善作用,对油气运聚先起动力作用促进再运移,后起封堵作用形成聚集,对深部泥质盖层起超压封盖作用。
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| 关 键 词： | 平湖构造带 异常高压 油气成藏 西湖凹陷 |
| 文章编号： | 0256-1492（2007）03-0093-05 |
| 收稿时间： | 2007-03-07 |
| 修稿时间： | 2007-03-072007-05-16 |
ABNORMAL PRESSURE AND RELATED RESERVOIR FORMATION IN THE PINGHU STRUCTURAL BELTS OF XIHU DEPRESSION, EAST CHINA SEA |
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| ZHANG Xian-ping,ZHANG Shu-lin,CHEN Hai-hong,YE Jia-ren.ABNORMAL PRESSURE AND RELATED RESERVOIR FORMATION IN THE PINGHU STRUCTURAL BELTS OF XIHU DEPRESSION, EAST CHINA SEA[J].Marine Geology & Quaternary Geology,2007,27(3):93-97. |
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| Authors: | ZHANG Xian-ping ZHANG Shu-lin CHEN Hai-hong YE Jia-ren |
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| Institution: | 1. Faculty of Earth Resources, China University of Geosciences, Wuhan 430074,China; 2 .State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074,China |
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| Abstract: | Overpressure is generally developed in deep layer in Pinghu structural belts of Xihu depression,East China Sea Shelf Basin.Distribution characteristics,dominant factors of overpressure formation and their effects on the reservoir formation are systematicaly studied in this paper.The result shows that overpressure is generally developed in reservoir and mudstone of deep layer in the Pinghu structural belts,and the dominant factors of overpressure formation are different in related subunits;overpressure has no obvious effect on the thermal evolution of organic matter,but has contributed to the physical property of reservoirs;overpressure firstly accelerated hydrocarbon remigration in the early stage,but sealed off hydrocarbon to accumulate in the original place in the late period;overpressure enhanced sealing ability of deep mud cap rocks. |
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| Keywords: | Pinghu structural belts overpressure reservoir formation Xihu Depression |
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