发明名称 |
SYSTEM AND METHOD FOR SEISMIC WAVEFIELD SEPARATION |
摘要 |
A system and method of creating a filter for use with locally dense seismic data is disclosed. The method includes obtaining survey geometry characteristics from a locally dense seismic survey. A filter is designed which uses spatial derivatives of the wavefield of order between (1) and the maximum order of spatial derivatives of the wavefield that can be estimated within a group. The filter can be designed so as to separate up/down going components, p/s components, or both up/down and p/s components. Partial derivatives in space and time of the wavefield can be calculated, using, for example, a taylor series expansion as an approximation. The seismic data is filtered by combining estimated near surface material properties, the seismic data, and the calculated partial derivatives.
|
申请公布号 |
WO0153854(A1) |
申请公布日期 |
2001.07.26 |
申请号 |
WO2001GB00186 |
申请日期 |
2001.01.19 |
申请人 |
SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;ROBERTSSON, JOHAN, OLOF, ANDERS;CURTIS, ANDREW |
发明人 |
ROBERTSSON, JOHAN, OLOF, ANDERS;CURTIS, ANDREW |
分类号 |
G01V1/20;G01V1/28;G01V1/30;G01V1/36;(IPC1-7):G01V1/36 |
主分类号 |
G01V1/20 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|