发明公开
EP2775322A3 Apparatus and method for determination of far-field signature from variable-depth seismic data
审中-公开
装置和方法用于确定地震数据可变深度的远场特征
- 专利标题： Apparatus and method for determination of far-field signature from variable-depth seismic data
- 专利标题（中）： 装置和方法用于确定地震数据可变深度的远场特征
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申请号： EP14157489.7申请日： 2014-03-03
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公开(公告)号： EP2775322A3公开(公告)日： 2017-05-10
- 发明人: Gratacos, Bruno
- 申请人： CGG Services SA
- 申请人地址： 27, avenue Carnot 91300 Massy FR
- 专利权人： CGG Services SA
- 当前专利权人： CGG Services SA
- 当前专利权人地址： 27, avenue Carnot 91300 Massy FR
- 代理机构： Petit, Maxime
- 优先权： US201361772210P 20130304
- 主分类号： G01V1/36
- IPC分类号： G01V1/36 ; G01V1/38
摘要：
Computing device, system and method for calculating an estimate far-field signature ( ) of a seismic source. The method includes receiving (200) seismic data collected with seismic sensors (128) having a variable-depth distribution so that ghost diversity is present; stacking (202) the seismic data at the sea floor; calculating (212) in a processor (802) the estimate far-field signature ( ) based on a ghost period (t i ) and a relative amplitude (γ i ) of two traces from the seismic data; and generating a final image of sub-surface based on the estimate far-field signature ( ).
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