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公开(公告)号：US20170102469A1
公开(公告)日：2017-04-13
申请号：US15388081
申请日：2016-12-22
申请人： CGG SERVICES SAS
发明人： Laurent RUET , Robert DOWLE , Benoit TEYSSANDIER
IPC分类号： G01V1/135
CPC分类号： G01V1/135 , G01V1/005 , G01V1/133 , G01V1/143 , G01V1/38 , G01V13/00 , G10K11/18 , Y10T29/49005 , Y10T29/49826
摘要： A method for generating acoustic waves under water includes actuating first and second pistons with an actuator system provided inside an enclosure of a source element, to generate a wave having a first frequency, and actuating the first and second pistons with a pressure mechanism attached to the enclosure, to control a pressure of a fluid inside the enclosure such that a pressure of the fluid is substantially equal to an ambient pressure of the enclosure. The enclosure has first and second openings and the first and second pistons are configured to close the first and second openings.
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公开(公告)号：US09588242B2
公开(公告)日：2017-03-07
申请号：US15191077
申请日：2016-06-23
申请人： PGS Geophysical AS
CPC分类号： G01V1/137 , F15B15/06 , G01V1/135 , G01V1/38 , G01V1/3808
摘要： A marine vibrator may include a containment housing, a sound radiating surface, and a compliance chamber. The compliance chamber may include a compliance chamber housing, a non-linear linkage assembly, and a low pressure chamber. The compliance chamber housing may define at least a portion of a compliance chamber internal volume having a compliance chamber internal gas pressure. The low pressure chamber may comprise a low pressure piston and a low pressure chamber housing. The low pressure chamber housing may define at least a portion of a low pressure chamber internal volume having a low pressure chamber internal gas pressure. The low pressure piston may be configured to move in response to a pressure differential across the low pressure piston such that a resonance frequency of the marine vibrator may be changed.
摘要翻译： 海洋振动器可以包括容纳壳体，声辐射表面和顺应室。 顺应性腔室可以包括顺应性腔室壳体，非线性连杆组件和低压腔室。 顺应室壳体可以限定具有顺应室内部气体压力的顺应室内部体积的至少一部分。 低压室可以包括低压活塞和低压室壳体。 低压室壳体可以限定具有低压室内部气体压力的低压室内部体积的至少一部分。 低压活塞可以构造成响应于低压活塞两端的压差而移动，使得可以改变海洋振动器的共振频率。
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公开(公告)号：US09389327B2
公开(公告)日：2016-07-12
申请号：US14723241
申请日：2015-05-27
申请人： PGS Geophysical AS
CPC分类号： G01V1/137 , F15B15/06 , G01V1/135 , G01V1/38 , G01V1/3808
摘要： A marine vibrator may include a containment housing, a sound radiating surface, and a compliance chamber. The compliance chamber may include a compliance chamber housing, a non-linear linkage assembly, and a low pressure chamber. The compliance chamber housing may define at least a portion of a compliance chamber internal volume having a compliance chamber internal gas pressure. The low pressure chamber may comprise a low pressure piston and a low pressure chamber housing. The low pressure chamber housing may define at least a portion of a low pressure chamber internal volume having a low pressure chamber internal gas pressure. The low pressure piston may be configured to move in response to a pressure differential across the low pressure piston such that a resonance frequency of the marine vibrator may be changed.
摘要翻译： 海洋振动器可以包括容纳壳体，声辐射表面和顺应室。 顺应性腔室可以包括顺应性腔室壳体，非线性连杆组件和低压腔室。 顺应室壳体可以限定具有顺应室内部气体压力的顺应室内部体积的至少一部分。 低压室可以包括低压活塞和低压室壳体。 低压室壳体可以限定具有低压室内部气体压力的低压室内部体积的至少一部分。 低压活塞可以构造成响应于低压活塞两端的压差而移动，使得可以改变海洋振动器的共振频率。
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公开(公告)号：US09013962B2
公开(公告)日：2015-04-21
申请号：US14057974
申请日：2013-10-18
申请人： WesternGeco L.L.C.
发明人： Claudio Bagaini
摘要： A method and related apparatus are described for generating acoustic signals for use in a vibratory seismic survey, including at least two different sweep signals for the control of at least two different types of vibrators; and matching the phases of the different sweep signals at a transition frequency from one sweep signal to another.
摘要翻译： 描述了一种用于产生用于振动地震测量的声学信号的方法和相关装置，包括用于控制至少两种不同类型的振动器的至少两个不同的扫描信号; 并且将不同扫描信号的相位在从一个扫描信号到另一扫描信号的转变频率上匹配。
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公开(公告)号：US20140283615A1
公开(公告)日：2014-09-25
申请号：US14207758
申请日：2014-03-13
申请人： WESTERNGECO L.L.C.
IPC分类号： G01V1/04
摘要： A method includes receiving a representation of a volume acceleration of a seismic vibrator. The method includes determining a signature of the seismic vibrator based at least in part on the representation of the volume acceleration.
摘要翻译： 一种方法包括接收地震振动器的体积加速度的表示。 该方法包括至少部分地基于体积加速度的表示来确定地震振动器的签名。
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公开(公告)号：US08804462B2
公开(公告)日：2014-08-12
申请号：US12966685
申请日：2010-12-13
申请人： Kamal Babour , Emmanuel Coste , Martin Howlid
发明人： Kamal Babour , Emmanuel Coste , Martin Howlid
摘要： A marine vibrator with improved seal is described. The marine vibrator includes a housing and piston within the housing for generating vibratory signals. The improved seal is comprised of a two-stage seal having a first seal disposed adjacent the water interface and a second seal disposed away from the water interface, thus improving the reliability of the marine vibrator.
摘要翻译： 描述了具有改进的密封的海洋振动器。 海洋振动器包括在壳体内的壳体和活塞，用于产生振动信号。 改进的密封件包括两级密封件，其具有邻近水界面布置的第一密封件和远离水界面布置的第二密封件，从而提高了海洋振动器的可靠性。
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公开(公告)号：US08634276B2
公开(公告)日：2014-01-21
申请号：US13493125
申请日：2012-06-11
申请人： Andrey K. Morozov , Douglas C. Webb
发明人： Andrey K. Morozov , Douglas C. Webb
摘要： A sound source includes a bubble configured to be filled with a gas. The sound source also includes an actuator configured to perturb the gas within the bubble by changing the volume of the gas without adding gas to or removing gas from the bubble. The sound source also includes a processing circuit configured to provide a control signal to the actuator to cause the actuator to perturb the gas within the bubble at a frequency defined by the control signal.
摘要翻译： 声源包括构造成充满气体的气泡。 声源还包括致动器，其被配置为通过改变气体的体积来扰动气泡内的气体，而不向气体中添加气体或从气泡中除去气体。 声源还包括处理电路，其被配置为向致动器提供控制信号，以使致动器以由控制信号限定的频率扰动气泡内的气体。
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公开(公告)号：US08387744B2
公开(公告)日：2013-03-05
申请号：US12980527
申请日：2010-12-29
IPC分类号： G01V1/04
CPC分类号： G01V1/135
摘要： A marine seismic source comprises a housing having a central axis, an open end, and a closed end opposite the open end. In addition, the seismic source includes a piston extending coaxially through the open end of the housing. The piston is adapted to axially reciprocate relative to the housing. Further, the piston has a first end distal the housing and a second end disposed within the housing.
摘要翻译： 海洋地震源包括具有中心轴线，开口端和与开口端相对的封闭端的壳体。 此外，地震源包括同轴地延伸穿过壳体开口端的活塞。 活塞适于相对于壳体轴向往复运动。 此外，活塞具有远离壳体的第一端和设置在壳体内的第二端。
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公开(公告)号：US20130051180A1
公开(公告)日：2013-02-28
申请号：US13593787
申请日：2012-08-24
申请人： Stephen Chelminski
发明人： Stephen Chelminski
IPC分类号： G01V1/135
摘要： A marine vibratory sound source for producing swept or pulse coded signals in a body of water and within geological structures beneath a body of water, primarily for seismic exploration of the strata beneath the bottom of the water. More particularly, a high power, servo controlled hydraulic, sound source that can readily be towed in water, towed along the bottom surface under the water or be used in a stationary position on the bottom surface under the water.
摘要翻译： 海洋振动声源，用于在水体内以及水体下方的地质构造中产生扫描或脉冲编码信号，主要用于水底下地层的地震勘探。 更具体地，可以容易地在水中拖曳的大功率，伺服控制的液压声源，沿着水下的底表面拖动，或者在水下的底表面上的静止位置使用。
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公开(公告)号：US20110162906A1
公开(公告)日：2011-07-07
申请号：US12980527
申请日：2010-12-29
IPC分类号： G01V1/38
CPC分类号： G01V1/135
摘要： A marine seismic source comprises a housing having a central axis, an open end, and a closed end opposite the open end. In addition, the seismic source includes a piston extending coaxially through the open end of the housing. The piston is adapted to axially reciprocate relative to the housing. Further, the piston has a first end distal the housing and a second end disposed within the housing.
摘要翻译： 海洋地震源包括具有中心轴线，开口端和与开口端相对的封闭端的壳体。 此外，地震源包括同轴地延伸穿过壳体开口端的活塞。 活塞适于相对于壳体轴向往复运动。 此外，活塞具有远离壳体的第一端和设置在壳体内的第二端。
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