Invention Application
US20150301211A1 METHOD AND DEVICE COMPENSATING FOR WATER VELOCITY VARIATION FOR 4D DATA SETS
审中-公开
用于4D数据集的水速变化的方法和装置补偿
- Patent Title: METHOD AND DEVICE COMPENSATING FOR WATER VELOCITY VARIATION FOR 4D DATA SETS
- Patent Title (中): 用于4D数据集的水速变化的方法和装置补偿
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Application No.: US14256376Application Date: 2014-04-18
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Publication No.: US20150301211A1Publication Date: 2015-10-22
- Inventor: Celine LACOMBE , Henning HOEBER
- Applicant: CGG Services SA
- Applicant Address: FR Massy Cedex
- Assignee: CGG Services SA
- Current Assignee: CGG Services SA
- Current Assignee Address: FR Massy Cedex
- Main IPC: G01V1/30
- IPC: G01V1/30 ; G01V1/38
Abstract:
Methods for determining a seismic wave's propagation velocity in water for monitor seismic data of a 4D data set analyze a relationship between seafloor time-shifts and source-receiver offsets. The time-shifts are differences of normal move out corrected seafloor source-receiver travel times for pairs of traces. Each pair includes a base trace extracted from base seismic data of the 4D data set and a monitor trace extracted from the monitor seismic data, the traces corresponding to the same seafloor bin and having the same source-receiver offset.
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