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    • 3. 发明申请
    • METHOD AND DEVICE FOR SEPARATING SEISMIC SIGNALS FROM SEISMIC SOURCES
    • 从地震源分离地震信号的方法和装置
    • WO2013087871A2
    • 2013-06-20
    • PCT/EP2012/075611
    • 2012-12-14
    • CGGVERITAS SERVICES SA
    • DOWLE, Robert
    • G01V1/38
    • G01V1/3861
    • System and method for actuating first and second marine acoustic sources in a firing sequence, the firing sequence including at least a first actuation of the first source followed by a first actuation of the second source followed by a second actuation of the first source and a second actuation of the second source. The method includes towing the first source at a depth in water substantially equal to a depth of the second source; establishing a series of reference time instants; actuating the first source with a variable first time delay relative to the series of reference time instants; and actuating the second source with a variable second time delay relative to the series of reference time instants such that time intervals between consecutive activations of the first and second sources are also variable.
    • 用于在击发序列中致动第一和第二海洋声源的系统和方法,所述击发序列包括所述第一源的至少第一致动,随后是所述第二源的第一致动,接着是所述第一源的第二致动, 致动第二源。 该方法包括在基本上等于第二源的深度的水中的深度处牵引第一源; 建立一系列参考时间; 以相对于一系列参考时刻的可变的第一时间延迟致动第一源; 以及相对于一系列参考时刻以可变的第二时间延迟致动第二源,使得第一和第二源的连续激活之间的时间间隔也是可变的。