Invention Grant
US08089825B2 Method of summing dual-sensor towed streamer signals using cross-ghosting analysis
有权
使用交叉重影分析求和双传感器拖缆器信号的方法
- Patent Title: Method of summing dual-sensor towed streamer signals using cross-ghosting analysis
- Patent Title (中): 使用交叉重影分析求和双传感器拖缆器信号的方法
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Application No.: US12231117Application Date: 2008-08-29
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Publication No.: US08089825B2Publication Date: 2012-01-03
- Inventor: Frederick James Barr, Jr. , Stig Rune Lennart Tenghamn
- Applicant: Frederick James Barr, Jr. , Stig Rune Lennart Tenghamn
- Applicant Address: NO Lysaker
- Assignee: PGS Geophysical AS
- Current Assignee: PGS Geophysical AS
- Current Assignee Address: NO Lysaker
- Main IPC: G01V1/38
- IPC: G01V1/38
Abstract:
A merged particle velocity signal is generated by combining a recorded vertical particle velocity signal, scaled in an upper frequency range using a time-dependent arrival angle as determined by cross-ghosting analysis, with a simulated particle velocity signal, calculated in a lower frequency range from a recorded pressure signal using a time-varying filter based on the time-dependent arrival angle. Combined pressure and vertical particle velocity signals are generated from the recorded pressure and merged particle velocity signals.
Public/Granted literature
- US20100054081A1 Method of summing dual-sensor towed streamer signals using cross-ghosting analysis Public/Granted day:2010-03-04
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