发明名称 |
REMOVING IRREGULARITIES FROM SEISMIC DATA CAUSED BY TUBE WAVES |
摘要 |
Method of removing irregularities caused by tube waves from seismic data obtained in a borehole seismic survey, which method comprises the steps of ( a) obtaining a set of original seismic data; (b) subjecting the original seismi c data set to a time-shift based on an estimated tube wave velocity to align t he tube waves in time; (c) applying a structurally oriented, edge-preserving filter to the time-shifted seismic data set; (d) undoing the time shift for the time-shifted, predicted tube wave data set; (e) subtracting the predicte d tube wave data set from the original seismic data set; (f) subjecting the se t of corrected, original seismic data to a time-shift based on a tube wave velocity opposite to the velocity used in step (b); and (g) repeating steps (c), (d) and (e).
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申请公布号 |
CA2446270(A1) |
申请公布日期 |
2002.11.21 |
申请号 |
CA20022446270 |
申请日期 |
2002.05.06 |
申请人 |
SHELL CANADA LIMITED |
发明人 |
FEHMERS, GIJSBERT CHRISTIAAN;PLESSIX, RENE-EDOUARD ANDRE MICHEL;MULDER, WILLIAM ALEXANDER |
分类号 |
G01V1/36;G01V1/48;(IPC1-7):G01V1/36 |
主分类号 |
G01V1/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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