P-SV Wave Identification Technique by Velocity Scanning for Multiwave Multi-Component Seismic Data
详细信息
- 责任者：Liu Cai (College of Geoexploration Science and Technology ; Jilin University ; Changchun 130026 ; China) ; Yang Qingjie
- 刊名：Geophysical Prospecting for Petroleum
- 出版年：2013
- 卷期：52(4)
- 关键词：多波地震勘探 ; multiwave seismic exploration
- 页码：p.383-387
- 图表：illus., 17 refs.
- 分类号：1600
- issnNo：ISSN1000-1441
- isbnNo：CN32-1284/TE
摘要
The data acquired by multi-wave multi-component seismic exploration involves abundant wavefield information,which can be used for obtaining the information of P-SV wave.We proposed a velocity scanning method to separate the P-wave and P-SV wave from multi-wave multi-component data.In terms of P-wave velocity and zero-offset time,we derive the corresponding S-wave velocity expression.By S-wave velocity scanning,a series of P-SV time-distance curve is obtained.Then the P-SV time-distance curve is proceeded correlation match with multi-wave seismic data.When the correlation degree reaches to the maximum,the scanned S-wave velocity is most accurate,and then the best P-SV waveform is obtained,therefore,the P-wave and P-SV wave can be separated.The method is applied on the identification of P-SV wave in numerical simulated seismic records and achieves good wavefield separation result.
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