发明名称 |
Methods and systems to remove particle-motion-sensor noise from vertical-velocity data |
摘要 |
Methods and systems that remove particle-sensor noise from measured vertical-velocity wavefield are presented. A approximate vertical- velocity data is computed from pressure data and vertical-velocity data at receiver coordinates of a seismic data acquisition system. The pressure data is composed of a pressure signal component and pressure-sensor noise and the vertical-velocity data is composed of a vertical-velocity signal component and particle-motion-sensor noise. A filter that gives a minimum difference between the vertical-velocity data and the approximate vertical-velocity data at each receiver coordinate is computed. Vertical-velocity data composed of the vertical-velocity signal component and approximate particle-motion-sensor noise based on the pressure-sensor noise is convolved with the filter at each receiver coordinate. |
申请公布号 |
NO20151049(A1) |
申请公布日期 |
2016.03.01 |
申请号 |
NO20150001049 |
申请日期 |
2015.08.19 |
申请人 |
PGS GEOPHYSICAL AS |
发明人 |
ORJI OKWUDILI CHUKS;ASGEDOM ENDRIAS GETACHEW;SÖLLNER WALTER |
分类号 |
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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