| 东海陆架多次波特点及去除策略 |
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| 引用本文： | 王惠东, 潘军, 颜中辉, 刘鸿, 杨佳佳. 东海陆架多次波特点及去除策略[J]. 海洋地质前沿, 2017, 33(4): 64-70. doi: 10.16028/j.1009-2722.2017.04011 |
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| 作者姓名： | 王惠东 潘军 颜中辉 刘鸿 杨佳佳 |
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| 作者单位： | 1.中国石油大学(华东), 青岛 266580; 2.国土资源部海洋油气资源与环境地质重点实验室, 青岛 266071; 3.中国地质调查局青岛海洋地质研究所, 青岛 266071; 4.青岛海洋科学与技术国家实验室海洋矿产资源评价与探测技术功能实验室, 青岛 266071 |
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| 基金项目： | 国家自然科学基金(41406071);中国地质调查项目(DD20160153) |
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| 摘 要： | 在东海陆架地区的地震资料中存在着多种类型的多次波，使得地震资料难以真实地反映地下地质信息，必须在地震资料处理过程中加以去除。根据多次波的不同特点，采用了3种技术方法组合去除的策略：采用SWD技术去除东海陆架普遍发育的与海底相关的短周期多次波；SRME技术对强波阻抗界面产生的近道多次波压制效果明显；抛物线Radon变换可以较好地解决中远偏移距的长周期多次波。通过对东海陆架大量多道地震资料的处理，采取3种技术方法的优化组合基本上都可以取得较好的处理效果。
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| 关 键 词： | 东海陆架 多次波 SWD SRME 抛物线Radon |
| 收稿时间： | 2016-12-30 |
CHARACTERISTICS OF THE MULTIPLES IN THE EAST CHINA SEA AND ELIMINATION METHOD |
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| WANG Huidong, PAN Jun, YAN Zhonghui, LIU Hong, YANG Jiajia. CHARACTERISTICS OF THE MULTIPLES IN THE EAST CHINA SEA AND ELIMINATION METHOD[J]. Marine Geology Frontiers, 2017, 33(4): 64-70. doi: 10.16028/j.1009-2722.2017.04011 |
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| Authors: | WANG Huidong PAN Jun YAN Zhonghui LIU Hong YANG Jiajia |
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| Affiliation: | 1.China University of Petroleum, Qingdao 266580, China; 2.Key laboratory of Marine Petroleum Resourcs and Environment Geology, Ministry of Land andResources, Qingdao 266071, China; 3.Qingdao Institute of Marine Geology, CGS, Qingdao 266071, China; 4.Function Laboratory for Marine Mineral Resource Geology and Exploration, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China |
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| Abstract: | Many types of multiples are observed in the seismic profiles from the East China Sea shelf area, which have brought up a lot of difficulties for geological interpretation. According to the different characteristics of multiples, three methods are proposed in this paper for multiple attenuation. The SWD approach is used to remove the short-period multiples of the sea bottom. The SRME technique is effective for suppressing the near-offset multiple of the strong wave impedance interface. The parabolic Radon transform can attenuate the long-period multiple of far-offset. In the processing of a large number of multi-channel seismic data of the East China Sea shelf, the optimal combination of the three techniques is recommended for better effect. |
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| Keywords: | East China Sea shelf multiples SWD SRME parabolic Radon transform |
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