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公开(公告)号：US10042073B2
公开(公告)日：2018-08-07
申请号：US14594389
申请日：2015-01-12
Applicant: PGS GEOPHYSICAL AS
Inventor： Lars Erik Magnus Björnemo , Ulf Peter Lindqvist
Abstract: Aspects described herein provide for a sensor assembly having an electrically isolated cable segment that may be used for geophysical prospecting. The sensor assembly generally includes a first cable segment comprising at least one electromagnetic (EM) sensor, and a second cable segment connected to the first cable segment and electrically isolated from the first cable segment. The second cable segment may be free of electrically conductive components. Alternatively, the second cable segment may have electrically conductive components that are not electrically connected to the first cable segment. The electrically isolated cable segment may reduce or eliminate undesired signal cross-feed from the EM source to the first cable segment, which may aid in maintaining data quality.
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公开(公告)号：US10768322B2
公开(公告)日：2020-09-08
申请号：US15181753
申请日：2016-06-14
Applicant: PGS Geophysical AS
Inventor： Ulf Peter Lindqvist , Lars Erik Magnus Bjornemo
Abstract: Measured marine survey data can be processed analogously to modeled marine survey data analogously and a misfit can be calculated between the processed measured marine survey data and the processed modeled marine survey data. A model parameter in the modeled marine survey data can be updated based on the misfit. The model parameter can be a parameter of a subsurface location.
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公开(公告)号：US20170059726A1
公开(公告)日：2017-03-02
申请号：US15181753
申请日：2016-06-14
Applicant: PGS Geophysical AS
Inventor： Ulf Peter Lindqvist , Lars Erik Magnus Bjornemo
Abstract: Measured marine survey data can be processed analogously to modeled marine survey data analogously and a misfit can be calculated between the processed measured marine survey data and the processed modeled marine survey data. A model parameter in the modeled marine survey data can be updated based on the misfit. The model parameter can be a parameter of a subsurface location.
Abstract translation: 测量的海洋勘测数据可以类似地与模拟的海洋勘测数据类似地进行处理，并且可以在经处理的测量海洋测量数据和经处理的建模海洋勘测数据之间计算错配。 模型化海洋调查数据中的模型参数可以根据误差进行更新。 模型参数可以是地下位置的参数。
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公开(公告)号：US20160109609A1
公开(公告)日：2016-04-21
申请号：US14594389
申请日：2015-01-12
Applicant: PGS GEOPHYSICAL AS
Inventor： LARS ERIK MAGNUS BJÖRNEMO , Ulf Peter Lindqvist
Abstract: Aspects described herein provide for a sensor assembly having an electrically isolated cable segment that may be used for geophysical prospecting. The sensor assembly generally includes a first cable segment comprising at least one electromagnetic (EM) sensor, and a second cable segment connected to the first cable segment and electrically isolated from the first cable segment. The second cable segment may be free of electrically conductive components. Alternatively, the second cable segment may have electrically conductive components that are not electrically connected to the first cable segment. The electrically isolated cable segment may reduce or eliminate undesired signal cross-feed from the EM source to the first cable segment, which may aid in maintaining data quality.
Abstract translation: 本文所述的方面提供了具有电隔离的电缆段的传感器组件，其可以用于地球物理勘探。 传感器组件通常包括包括至少一个电磁（EM）传感器的第一电缆段和连接到第一电缆段并与第一电缆段电隔离的第二电缆段。 第二电缆段可以没有导电部件。 或者，第二电缆段可以具有不电连接到第一电缆段的导电部件。 电隔离的电缆段可以减少或消除从EM源到第一电缆段的不期望的信号交叉馈送，这有助于维持数据质量。
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公开(公告)号：US09733377B2
公开(公告)日：2017-08-15
申请号：US14606041
申请日：2015-01-27
Applicant: PGS Geophysical AS
IPC: G01V1/38
CPC classification number: G01V1/3826
Abstract: Depth and tilt control systems for geophysical sensor streamers and methods of use are discussed. Such systems may include a plurality of tilt sensors disposed at spaced apart locations along the geophysical sensor streamer, each tilt sensor having a first tilt sensing element arranged to measure tilt of the geophysical sensor streamer proximate the associated spaced apart location, a plurality of LFD control devices, each disposed proximate one of the tilt sensors along the geophysical sensor streamer, and a plurality of microcontrollers, each microcontroller in signal communication with at least one of the LFD control devices and its associated tilt sensor, wherein each microcontroller is capable of utilizing the tilt measured by the associated tilt sensor to selectively operate the associated LFD control device to cause the geophysical sensor streamer to align with a selected depth profile.
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Patent Agency Ranking
公开(公告)号：US20160306067A1
公开(公告)日：2016-10-20
申请号：US15162223
申请日：2016-05-23
Applicant: PGS Geophysical AS
Inventor： Robert Andras Juhasz , Ulf Peter Lindqvist
IPC: G01V3/165
CPC classification number: G01V3/165 , G01V3/083 , G01V13/00 , G01V2003/084 , G01V2003/085
Abstract: Disclosed are methods and systems for conditioning electrodes while deployed in the sea with a marine electromagnetic survey system. An embodiment of the method may comprise deploying electrodes in seawater during a marine electromagnetic survey. The method further may comprise coupling at least one of the electrodes to a controllable current/voltage source while the electrodes are deployed in the seawater. The method further may comprise sending a first conditioning signal from the controllable current/voltage source to the at least one of the electrodes coupled to the controllable current/voltage source.
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公开(公告)号：US09274241B2
公开(公告)日：2016-03-01
申请号：US13828239
申请日：2013-03-14
Applicant: PGS Geophysical AS
Inventor： Ulf Peter Lindqvist , Andras Robert Juhasz , Rune Johan Magnus Mattsson , Lars Erik Magnus Björnemo
Abstract: Disclosed are methods and systems for suppression of noise in electromagnetic surveying that includes stacking two or more frames of electromagnetic data. An example embodiment discloses a method for suppressing swell-induced noise in an electromagnetic survey, comprising: measuring an electromagnetic field parameter at one or more positions to provide an electromagnetic signal, the electromagnetic signal comprising a swell-induced portion; and stacking two or more frames of the electromagnetic signal to provide a stacked signal in which the swell-induced portion is suppressed, wherein the swell-induced portion is out of phase between the two or more frames.
Abstract translation: 公开了用于抑制电磁勘测中的噪声的方法和系统，包括堆叠两个或更多个电磁数据帧。 一个示例性实施例公开了一种用于抑制电磁勘测中的膨胀引起的噪声的方法，包括：测量一个或多个位置处的电磁场参数以提供电磁信号，所述电磁信号包括溶胀诱发部分; 并且堆叠电磁信号的两个或更多个帧以提供其中抑制了溶胀诱发部分的堆叠信号，其中膨胀诱发部分在两个或更多个帧之间不相位。
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公开(公告)号：US20150153469A1
公开(公告)日：2015-06-04
申请号：US14606041
申请日：2015-01-27
Applicant: PGS Geophysical AS
IPC: G01V1/38
CPC classification number: G01V1/3826
Abstract: Depth and tilt control systems for geophysical sensor streamers and methods of use are discussed. Such systems may include a plurality of tilt sensors disposed at spaced apart locations along the geophysical sensor streamer, each tilt sensor having a first tilt sensing element arranged to measure tilt of the geophysical sensor streamer proximate the associated spaced apart location, a plurality of LFD control devices, each disposed proximate one of the tilt sensors along the geophysical sensor streamer, and a plurality of microcontrollers, each microcontroller in signal communication with at least one of the LFD control devices and its associated tilt sensor, wherein each microcontroller is capable of utilizing the tilt measured by the associated tilt sensor to selectively operate the associated LFD control device to cause the geophysical sensor streamer to align with a selected depth profile.
Abstract translation: 讨论了地球物理传感器拖缆的深度和倾斜控制系统及其使用方法。 这样的系统可以包括沿着地球物理传感器拖缆设置在间隔开的位置处的多个倾斜传感器，每个倾斜传感器具有第一倾斜感测元件，第一倾斜感测元件被布置成测量靠近相关联的间隔位置的地球物理传感器拖缆的倾斜，多个LFD控制 每个微处理器与LFD控制装置及其相关联的倾斜传感器中的至少一个信号通信，其中每个微控制器能够利用这些微控制器， 通过相关联的倾斜传感器测量的倾斜度以选择性地操作相关联的LFD控制装置，以使地球物理传感器拖缆与选定的深度轮廓对准。
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公开(公告)号：US10175277B2
公开(公告)日：2019-01-08
申请号：US15239628
申请日：2016-08-17
Applicant: PGS Geophysical AS
Inventor： Andras Robert Juhasz , Ulf Peter Lindqvist
Abstract: A system and method is provided for identifying degrading electrodes in a marine electromagnetic survey system. A system may comprise a sensor array operable for use in a marine electromagnetic survey system, wherein the sensor array comprises a plurality of electrodes. The system may comprise a shunt resistor connected to the electrodes and a processor operable to vary a resistance of the shunt resistor in the presence of a voltage across the electrodes. A method for identifying degrading electrodes may comprise measuring an electric field in a body of water with a pair of electrodes, wherein a shunt resistor is connected between the pair of electrodes. The method may comprise varying a resistance of the shunt resistor. The method may comprise measuring a voltage across the shunt resistor while varying the resistance of the shunt resistor to obtain measured voltages for different shunt resistor values. The method may comprise comparing the measured voltages of the different shunt resistor values to calculate resistance of the pair of electrodes.
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公开(公告)号：US09696449B2
公开(公告)日：2017-07-04
申请号：US15162223
申请日：2016-05-23
Applicant: PGS Geophysical AS
Inventor： Robert Andras Juhasz , Ulf Peter Lindqvist
CPC classification number: G01V3/165 , G01V3/083 , G01V13/00 , G01V2003/084 , G01V2003/085
Abstract: Disclosed are methods and systems for conditioning electrodes while deployed in the sea with a marine electromagnetic survey system. An embodiment of the method may comprise deploying electrodes in seawater during a marine electromagnetic survey. The method further may comprise coupling at least one of the electrodes to a controllable current/voltage source while the electrodes are deployed in the seawater. The method further may comprise sending a first conditioning signal from the controllable current/voltage source to the at least one of the electrodes coupled to the controllable current/voltage source.
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