| 发明名称 | Wavefield deghosting | ||
| 摘要 | A technique includes receiving sensor acquired data, which includes pressure data representative of at least one pressure measurement of a wavefield and particle motion data representative of at least one particle motion measurement of the wavefield. The technique includes filtering the pressure data and the particle motion data with a plurality of directional filters to provide a plurality of filtered datasets. The filtered datasets are associated with different directional ranges. The technique includes estimating an angle of incidence for at least one of the directional ranges based at least in part on at least one of the filtered datasets; and processing the acquired data to determine at least one of an upgoing component of the wavefield and a downgoing component of the wavefield based at least in part on the at least one estimated angle of incidence. | ||
| 申请公布号 | US9274239(B2) | 申请公布日期 | 2016.03.01 |
| 申请号 | US201313739877 | 申请日期 | 2013.01.11 |
| 申请人 | WesternGeco L.L.C. | 发明人 | Vassallo Massimiliano;Van Manen Dirk-Jan;Rentsch-Smith Susanne;Christie Philip A. F. |
| 分类号 | G01V1/38;G01V1/36 | 主分类号 | G01V1/38 |
| 代理机构 | Abimbola Bukoye | 代理人 | Abimbola Bukoye |
| 主权项 | 1. A method comprising: receiving sensor acquired data including pressure data representative of at least one pressure measurement of a wavefield and particle motion data representative of at least one particle motion measurement of the wavefield, wherein the wavefield results from energy from at least one energy source, the energy propagating into a subsurface three-dimensional geologic formation; filtering the pressure data and the particle motion data with a plurality of directional filters to provide a plurality of filtered datasets, the filtered datasets being associated with different directional ranges; estimating an angle of incidence for at least one of the directional ranges based at least in part on at least one of the filtered datasets; scaling at least one dataset of the plurality of filtered datasets based at least in part on the angle of incidence estimated for at least one of the directional ranges; and processing the acquired data to determine at least one of an upgoing component of the wavefield and a downgoing component of the wavefield based at least in part on the at least one estimated angle of incidence and based at least in part on a result of the scaling. | ||
| 地址 | Houston TX US | ||