| 东海盆地西湖凹陷地层剥蚀厚度研究 |
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| 引用本文： | 王震,张明利,武法东,王子煜,王林生. 东海盆地西湖凹陷地层剥蚀厚度研究[J]. 新疆石油地质, 2005, 26(2): 175-177 |
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| 作者姓名： | 王震 张明利 武法东 王子煜 王林生 |
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| 作者单位： | 1.中国地质大学, 北京 100083;2.中国石化 石油勘探开发科学研究院,北京 100083;3.石油大学, 北京 102249 |
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| 摘 要： | 中国东海盆地西湖凹陷晚中生代末期以来,经历了裂陷、拗陷和区域沉降3个阶段,形成T02(上新统底)、T42(中新统底）、T03(渐新统底）等多个广泛分布的区域性不整合面（地震反射界面）,地层遭受了强烈剥蚀。对用地质对比法求取地层剥蚀厚度的基本原理和计算方法作了简要介绍,以东海西湖凹陷26条主测线剖面为例,分析了地层剥蚀对油气成藏的影响,对这一方法的适用性作了探讨。
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| 关 键 词： | 东海盆地 西湖凹陷 地层剥蚀 不整合 对比 |
| 文章编号： | 1001-3873(2005)02-0175-03 |
| 收稿时间： | 2004-07-19 |
| 修稿时间： | 2004-07-19 |
A Study on Stratigraphic Erosion Thickness in Xihu Sag, the East China Sea Basin |
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| WANG Zhen,ZHANG Ming-li,WU Fa-dong,WANG Zi-yu,WANG Lin-sheng. A Study on Stratigraphic Erosion Thickness in Xihu Sag, the East China Sea Basin[J]. Xinjiang Petroleum Geology, 2005, 26(2): 175-177 |
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| Authors: | WANG Zhen ZHANG Ming-li WU Fa-dong WANG Zi-yu WANG Lin-sheng |
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| Affiliation: | 1. China University of Geosciences, Beijing 100083, China;2. Research Institute of Petroleum Exploration and Development, Sinope，Beijing 100083, China;3. University of Petroleum, Beijing 102249, China |
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| Abstract: | Since Late Cretaceous, Xihu sag in the East China Sea basin underwent chasmic stage, depression stage and regional subsiding stage, shaping several extensive regional unconformities (seismic reflection interfaces) such as T20(bottom of Pliocene), T24 (bottom of Miocene), T30 (bottom of Oligocene), causing intensively stratigraphic erosion. This paper presents the basic principle and approach for calculating the stratigraphic erosion thickness by means of geologic analogy method, analyzes the affect of the erosion on oil-gas accumulation by taking 26 major seismic line profiles in xihu sag as examples, and probes into the applicability of this approach. |
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| Keywords: | East China Sea basin Xihu sag stratigraphic erosion unconformity correlation |
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