| Characteristics analysis on high density spatial sampling seismic data |
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| 作者姓名： | Cai Xiling Liu Xuewei Deng Chunyan Lv Yingme |
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| 作者单位： | [1]China University ofGeosciences, Beijing 100083,China. [2]Research Institute of Bureau of Geophysical Prospecting, CNPC, Zhuozhou 072750, China. |
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| 摘 要： | China＇s continental deposition basins are characterized by complex geological structures and various reservoir lithologies. Therefore, high precision exploration methods are needed. High density spatial sampling is a new technology to increase the accuracy of seismic exploration. We briefly discuss point source and receiver technology, analyze the high density spatial sampling in situ method, introduce the symmetric sampling principles presented by Gijs J. O. Vermeer, and discuss high density spatial sampling technology from the point of view of wave field continuity. We emphasize the analysis of the high density spatial sampling characteristics, including the high density first break advantages for investigation of near surface structure, improving static correction precision, the use of dense receiver spacing at short offsets to increase the effective coverage at shallow depth, and the accuracy of reflection imaging. Coherent noise is not aliased and the noise analysis precision and suppression increases as a result. High density spatial sampling enhances wave field continuity and the accuracy of various mathematical transforms, which benefits wave field separation. Finally, we point out that the difficult part of high density spatial sampling technology is the data processing. More research needs to be done on the methods of analyzing and processing huge amounts of seismic data.
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| 关 键 词： | 高密度空间采样 对称采样 静校正 噪声压制 波场分离 数据处理 地震勘探 |
| 收稿时间： | 2005-10-25 |
| 修稿时间： | 2005-10-252005-12-12 |
Characteristics analysis on high density spatial sampling seismic data |
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| Cai Xiling Liu Xuewei Deng Chunyan Lv Yingme.Characteristics analysis on high density spatial sampling seismic data[J].Applied Geophysics,2006,3(1):48-54. |
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| Authors: | Cai;Xiling;Liu;Xuewei;Deng;Chunyan;Lv;Yingme |
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| Abstract: | |
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| Keywords: | high density spatial sampling symmetric sampling static correction noise suppression wave field separation and data processing |
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