| 发明名称 | Device and method for directional designature of seismic data | ||
| 摘要 | Computing device, computer instructions and method for directional designature of seismic data d with a given source directivity. The method includes obtaining directional operators r; calculating a model u with a modified source directivity based on (1) seismic data d, and (2) an operator that is a combination of the directional operators r and a reverse transform operator L; using the model u to obtain seismic data dfree with modified source directivity; and generating a final image of the subsurface using seismic data dfree. | ||
| 申请公布号 | US9395457(B2) | 申请公布日期 | 2016.07.19 |
| 申请号 | US201313927566 | 申请日期 | 2013.06.26 |
| 申请人 | CGG SERVICES SA | 发明人 | Poole Gordon |
| 分类号 | G01V1/38;G01V1/36 | 主分类号 | G01V1/38 |
| 代理机构 | Patent Portfolio Builders PLLC | 代理人 | Patent Portfolio Builders PLLC |
| 主权项 | 1. A method for source directivity compensation of seismic data d with a given source directivity related to a subsurface, the method comprising: obtaining directional operators r, wherein a directional operator converts a desired zero-phase wavelet to a source signature, for a given shot; calculating with a computing device a model u with a modified source directivity based on (1) the seismic data d, and (2) an operator that is a combination of the directional operators r and a reverse transform operator L; using the model u to obtain seismic data dfree with modified source directivity; and generating an image of a geophysical structure in the subsurface using seismic data dfree. | ||
| 地址 | Massy FR | ||