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公开(公告)号：US4091358A
公开(公告)日：1978-05-23
申请号：US495947
申请日：1974-08-09
申请人： Joseph F. Bayhi
发明人： Joseph F. Bayhi
CPC分类号： G01V1/20
摘要： In seismic exploration of water-covered areas of the earth, a seismic cable containing seismic energy detecting means spaced along the cable is used. The detecting means are grouped into one or more arrays situated along the length of the cable, and each array is divided into a plurality of groups. The detector outputs within each group are connected in parallel within the cable. Selected group outputs, corresponding to varying segmental lengths along the cable, are summed to enhance seismic data signal-to-noise ratio. The summed signal used for seismic analysis is determined by the maximum array segmental length over which reflected seismic signal components are substantially phase correlated. This length varies with record time, with geologic dip of the earth layers, and with distance of the detectors from the seismic source. This invention permits the selection, during seismic analysis, of the array segmental length that provides the most useful seismic data. During seismic analysis, shorter segmental lengths are used during the portion of record time when high frequency reflections or nonvertical ray paths are present. Longer array segmental lengths are used during the record time when near vertical array paths exist or when only lower frequency reflections appear on the record.
摘要翻译： 在地球覆盖水域的地震勘探中，使用了包含沿电缆隔开的地震能量检测装置的地震电缆。 检测装置被分组为沿着电缆的长度设置的一个或多个阵列，并且每个阵列被分成多个组。 每个组内的检测器输出在电缆内并联。 对应于沿着电缆的不同节段长度的选定组输出被相加以增强地震数据信噪比。 用于地震分析的总和信号由反射的地震信号分量基本上相位相关的最大阵列段长度确定。 该长度随记录时间而变化，地球层的地质倾角以及探测器与地震源的距离。 本发明允许在地震分析期间选择提供最有用的地震数据的阵列段长度。 在地震分析期间，在存在高频反射或非垂直射线路径的记录时间部分，使用较短的段长度。 在存在近垂直阵列路径的记录时间或记录中仅出现较低频率反射时，使用较长的阵列段长度。
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公开(公告)号：US4396088A
公开(公告)日：1983-08-02
申请号：US232095
申请日：1981-02-06
申请人： Joseph F. Bayhi
发明人： Joseph F. Bayhi
CPC分类号： G01V1/135 , Y10S367/912
摘要： The invention relates to a marine seismic source which emits an FM signal linearly increasing from 10 Hz to about 100 Hz. The source has a number of transducers which are flexible sleeves containing a pulsing hydraulic fluid.
摘要翻译： 本发明涉及一种海洋地震源，其发射从10Hz至约100Hz线性增加的FM信号。 该源具有多个换能器，它们是包含脉冲液压流体的柔性套管。
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