| 复杂表层引起的生物礁解释陷阱分析 |
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| 引用本文： | 熊晓军,贺振华,陈洪德,黄玉.复杂表层引起的生物礁解释陷阱分析[J].物探化探计算技术,2009,31(6):529-534. |
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| 作者姓名： | 熊晓军 贺振华 陈洪德 黄玉 |
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| 作者单位： | 1. 成都理工大学,地球探测与信息技术教育部重点实验室,四川,成都,610059
2. 成都理工大学,沉积地质研究院,四川,成都,610059 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 生物礁储层是良好的油气储集场所，具有高孔隙度、丰度大、产能高等特点，在油气勘探开发中占有十分重要的地位。常规的生物礁解释主要依据地震时间剖面上的外形隆起，顶底反射，上覆盖层的披覆等特征，但是在实际的生物礁解释中，还存在着很多解释陷阱。这里从常规地震资料处理误差分析的角度出发，首先提出了一种新的适用于起伏地形的波动方程地震叠后正演方法，然后通过对复杂表层条件下的生物礁模型进行地震数值模拟，重点分析了复杂表层条件可能引起的，生物礁的各种解释陷阱，如假隆起、生物礁体分布范围的变化等假象，为生物礁的识剐提供了重要的理论参考。
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| 关 键 词： | 复杂表层 生物礁 解释陷阱 地震叠后正演 地震资料处理 |
Interpretation pitfalls of reef caused by complicated surface |
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| Abstract: | Reef is a good reservoir for oil and gas with high porosity, large abundance and high capacity, and occupies an important position in the field of oil and gas exploration and development. Conventional seismic interpretation of reef is mainly according to the features in seismic time profiles, such as bulge shape, discernible reflection from top or bottom,drape structure,etc.However,there are still many interpretation pitfalls in practical seismic interpretation of reef.Based on error analysis of conventional seismic data processing with complicated surface, the paper firstly proposed a new method of post-stack seismic forward modeling, which can effectively handle complicated surface conditions. Secondly, the paper designs some typical reef models with complicated surface and obtains the seismic reflection by the new modeling method. Then, the paper analyses several kinds of possible interpretation pitfalls of reef caused by complicated surface conditions, such as false uplifted structure, variation of reef distribution,etc.,which is important theoretical reference for reef identification. |
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| Keywords: | complicated surface reef interpretation pitfall seismic post-stack modeling seismic data processing |
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