Invention Grant
- Patent Title: Device and method for optimization of 4D and 3D seismic data
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Application No.: US14888168Application Date: 2014-04-30
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Publication No.: US10330809B2Publication Date: 2019-06-25
- Inventor: Henning Hoeber , Adel Khalil , Erik Hicks
- Applicant: CGG Services SA
- Applicant Address: FR Massy
- Assignee: CGG SERVICES SAS
- Current Assignee: CGG SERVICES SAS
- Current Assignee Address: FR Massy
- Agency: Patent Portfolio Builders PLLC
- International Application: PCT/EP2014/058860 WO 20140430
- International Announcement: WO2014/177633 WO 20141106
- Main IPC: G01V1/38
- IPC: G01V1/38 ; G01V1/36 ; G01V1/28 ; G01J1/36 ; G01V1/30

Abstract:
A method and apparatus for noise attenuation. The method includes receiving seismic data associated with at least two vintages (di, dj) collected for a same subsurface, wherein the first and second vintages (di, dj) are taken at different times; calculating a set of filters (fi, fj) that minimizes an energy function (E), wherein the energy function (E) includes a term representing a 4D difference between the first and second vintages (di, dj); calculating primaries (pi, pj) corresponding to the first and second vintages (di, dj) based on the set of (fi, fj); and calculating a 4D difference (Δij) based on the primaries (pi, pj). The 4D difference (Δij) is minimized.
Public/Granted literature
- US20160109597A1 DEVICE AND METHOD FOR OPTIMIZATION OF 4D AND 3D SEISMIC DATA Public/Granted day:2016-04-21
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