| 非对称走时克希霍夫叠前时间偏移方法在塔河地区的应用 |
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| 引用本文： | 姜大建,宇俊瑞,张改兰,李燕.非对称走时克希霍夫叠前时间偏移方法在塔河地区的应用[J].物探与化探,2011,35(5):643-647. |
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| 作者姓名： | 姜大建 宇俊瑞 张改兰 李燕 |
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| 作者单位： | 中国石油化工股份有限公司石油勘探开发研究院,北京,100083 |
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| 摘 要： | 针对塔河油田"复式"成藏组合所具有的油气圈闭类型复杂、储层厚度薄、构造幅度小、岩性横向变化大和非均质性强等特点,采用非对称走时克希霍夫叠前时间偏移方法进行数据处理。与常规叠后时间偏移和弯曲射线克希霍夫叠前时间偏移相比,非对称走时克希霍夫叠前时间偏移成果剖面绕射波归位合理,断层、断点清晰,不整合面成像及奥陶系内幕碳酸盐缝洞体反射结构更加清楚,横向分辨率进一步提高。
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| 关 键 词： | 速度模型 非对称走时 叠前时间偏移 地震成像 |
THE APPLICATION OF ASYMMETRIC TRAVEL TIME KIROCHHOFF PRE-STACK TIME MIGRATION IN THE TAHE OILFIELD |
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| JIANG Da-jian,NING Jun-rui,ZHANG Gai-lan,LI Yan.THE APPLICATION OF ASYMMETRIC TRAVEL TIME KIROCHHOFF PRE-STACK TIME MIGRATION IN THE TAHE OILFIELD[J].Geophysical and Geochemical Exploration,2011,35(5):643-647. |
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| Authors: | JIANG Da-jian NING Jun-rui ZHANG Gai-lan LI Yan |
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| Institution: | JIANG Da-jian,NING Jun-rui,ZHANG Gai-lan,LI Yan (Exploration & Production Research Institute,SINOPEC,Beijing 100083,China) |
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| Abstract: | In recent years,pre-stack time migration has developed rapidly in various fields.The composite reservoir in the Tahe oilfield is complicated in type of hydrocarbon trap,thin in reservoir thickness,low in amplitude of structure,laterally variable in lithology,and strong in heterogeneity.Compared with poststack time migration and conventional bend-ray Kirochhoff pre-stack time migration,the imaging resulting from asymmetric travel time Kirochhoff pre-stack time migration is clearer in images of faults,breakpo... |
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| Keywords: | velocity model asymmetric travel time prestack time migration seismic imaging |
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