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    • 5. 发明授权
    • Enhancing the acquisition and processing of low frequencies for sub-salt imaging
    • 加强亚盐成像低频采集和处理
    • US07961549B2
    • 2011-06-14
    • US11568531
    • 2004-06-16
    • Nicolae MoldoveanuPhilip A. F. ChristieMark Egan
    • Nicolae MoldoveanuPhilip A. F. ChristieMark Egan
    • G01V1/38
    • G01V1/3861G01V1/38
    • A method and apparatus for acquiring seismic signals from beneath a salt region in the earth. In one embodiment, the method includes tuning an air gun array to a first bubble oscillation; towing the air gun array in the water at a depth of at least 10 meters, in which the air gun array has a total volume in a range of about 6780 cubic inches to about 10,170 cubic inches; directing acoustic signals with the air gun array down through the water into the earth beneath the salt region; towing one or more seismic streamers in the water at one or more depths, in which at least one of the depths is at least 10 meters, in which each streamer comprises a plurality of hydrophones disposed therealong; and recording with the hydrophones seismic signals reflected from strata in the earth beneath the salt region.
    • 一种用于从地球上的盐区域下方获取地震信号的方法和装置。 在一个实施例中,该方法包括将气枪阵列调谐到第一气泡振荡; 在至少10米的深度的水中牵引气枪阵列,其中气枪阵列的总体积在约6780立方英寸至约10,170立方英寸的范围内; 将气枪阵列的声信号引导通过水进入盐区下方的地球; 在水中的一个或多个深度牵引一个或多个地震拖缆,其中至少一个深度至少为10米,其中每个拖缆包括沿其设置的多个水听器; 并用盐水区域下方的地球上的地层反射的水听器记录地震信号。