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公开(公告)号：US11871675B2
公开(公告)日：2024-01-09
申请号：US17893872
申请日：2022-08-23
Applicant: PGS Geophysical AS
Inventor： Stig Rune Lennart Tenghamn , David Thomas Booth
CPC classification number: H10N30/302 , G01L1/16 , G01P15/08 , G01V1/186 , G01V1/201 , G01V1/3808 , G01V2210/1423 , G01V2210/32
Abstract: A plurality of sensors and a controller are disposed in a marine seismic streamer. Each of the sensors comprises an enclosure having two opposing interior walls, first and second piezoelectric elements disposed on the opposing interior walls, a third piezoelectric element disposed on a flexible substrate within the enclosure between the opposing interior walls, a pressure signal output node and an acceleration signal output node disposed on the exterior surface of the enclosure. A combined pressure signal derived from the pressure signal output nodes of the plural sensors is coupled to a pressure signal input of the controller. A combined acceleration signal derived from the acceleration signal output nodes of the plural sensors is coupled to an acceleration signal input of the controller. The streamer may be towed, and the combined pressure and acceleration signals may be recorded in a computer-readable medium.
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公开(公告)号：US10534099B2
公开(公告)日：2020-01-14
申请号：US15704835
申请日：2017-09-14
Applicant: PGS Geophysical AS
Inventor： Stig Rune Lennart Tenghamn
Abstract: A system can include a first array of hydrophones and a second array of hydrophones. Each of the hydrophones can include a first detector and a second detector. A sensitivity of the first detector can be matched with a sensitivity of the second detector and a combined sensitivity of the first array of hydrophones can be matched with a combined sensitivity of the second array of hydrophones.
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公开(公告)号：US20190056522A1
公开(公告)日：2019-02-21
申请号：US16055943
申请日：2018-08-06
Applicant: PGS Geophysical AS
Inventor： Stig Rune Lennart Tenghamn , Manuel Beitz , Christian Strand
IPC: G01V1/38
Abstract: Techniques are disclosed relating to geophysical surveying. In various embodiments, a computer system may access seismic data for a geological formation, where the seismic data is recorded, using one or more sensors, during a seismic survey in which a first vibratory source was driven using a first digital code for at least a first time interval. The first digital code, in some embodiments, may include a first plurality of subsections corresponding to portions of the first time interval. In some embodiments, the computer system may image a first location of the geological formation using a correlation of only a first sub-section of the first plurality of sub-sections with the seismic data. Further, in some embodiments, the computer system may image a second location of the geological formation using a correlation of two or more of the first plurality of sub-sections with the seismic data.
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公开(公告)号：US20180321419A1
公开(公告)日：2018-11-08
申请号：US15961693
申请日：2018-04-24
Applicant: PGS Geophysical AS
Inventor： Stig Rune Lennart Tenghamn , Frederick James Barr
CPC classification number: H04R1/02 , G01L23/10 , G01L27/005 , G01P15/09 , G01P21/00 , G01V1/38 , G01V13/00 , H01L41/1132 , H04R1/42
Abstract: Techniques are disclosed relating to calibrating sensors configured to measure both pressure and acceleration. In various embodiments, a system detects a first voltage produce by a first piezoelectric material in a hydrophone when the hydrophone is exposed to an acceleration and detects a second voltage produced by a second piezoelectric material in the hydrophone when the hydrophone is exposed to the acceleration. The system, in some embodiments, compares the first voltage and the second voltage. Based on the comparing of the first and second voltages, in some embodiments, the system determines a resistance for a variable resistor coupled to one of the first and second piezoelectric materials.
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公开(公告)号：US09995834B2
公开(公告)日：2018-06-12
申请号：US14062182
申请日：2013-10-24
Applicant: PGS Geophysical AS
Inventor： Stig Rune Lennart Tenghamn
CPC classification number: G01V1/133 , G01V1/143 , G01V1/159 , G01V2210/1293
Abstract: Embodiments related to addition of a variable mass load to the shell of a marine vibrator to compensate for air spring effects. An embodiment provides a marine vibrator, comprising: an outer shell; a driver disposed at least partially within the outer shell and coupled thereto; and a mass load coupled to an exterior surface of the outer shell; wherein the marine vibrator has a resonance frequency selectable based at least in part on the mass load.
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Patent Agency Ranking
公开(公告)号：US20170168176A1
公开(公告)日：2017-06-15
申请号：US15443757
申请日：2017-02-27
Applicant: PGS Geophysical AS
Inventor： Stig Rune Lennart Tenghamn
CPC classification number: G01V1/137 , G01V1/04 , G01V1/145 , G01V1/159 , G01V1/38 , G01V1/3808 , G01V2210/1293
Abstract: Embodiments relate to marine acoustic vibrators that incorporate one or more piston plates that act on the surrounding water to produce acoustic energy. An example marine acoustic vibratory may comprise: a containment housing; a piston plate; a fixture coupled to the containment housing; a spring element coupled to the piston plate and the fixture; and a driver coupled to the piston plate and the fixture and configured to move the piston plate back and forth.
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公开(公告)号：US09322945B2
公开(公告)日：2016-04-26
申请号：US13787520
申请日：2013-03-06
Applicant: PGS Geophysical AS
Inventor： Stig Rune Lennart Tenghamn
CPC classification number: G01V1/38 , G01V1/04 , G01V1/159 , G01V1/3808 , G01V1/3817 , G01V2210/1214 , G01V2210/1293
Abstract: Disclosed are methods and systems for marine surveying that use electrically powered seismic sources that are distributed at spaced apart locations. In one example, a marine seismic survey system comprises: a survey vessel; a plurality of seismic sources configured to be towed by the survey vessel, wherein the seismic sources are electrically powered and are distributed behind the survey vessel at spaced apart locations with a spacing of about 50 meters or more; and a plurality of sensor streamers configured to be towed.
Abstract translation: 公开了用于海洋测量的方法和系统，其使用分布在间隔开的位置的电动地震源。 在一个例子中，海洋地震勘测系统包括：一个测量船; 多个地震源被构造成由测量船拖动，其中地震源是电动的，并且以约50米或更大的间隔的间隔开的位置分布在测量船后面; 以及构造成被牵引的多个传感器拖缆。
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公开(公告)号：US20140340985A1
公开(公告)日：2014-11-20
申请号：US14145214
申请日：2013-12-31
Applicant: PGS Geophysical AS
Inventor： Stig Rune Lennart Tenghamn , Jonathan David Snodgrass , Bo Carl Fredrik Löfgren , Karl-Henrik Ryttersson
IPC: G01V1/04
Abstract: Embodiments related to restriction of gas flow in a marine acoustic vibrator to compensate for gas spring effects. An embodiment provides a marine acoustic vibrator, comprising: an outer shell; and a variable gas flow restrictor disposed within the outer shell; wherein the marine acoustic vibrator has a resonance frequency selectable based at least in part on the variable gas flow restrictor.
Abstract translation: 涉及在海洋声振动器中限制气流以补偿气弹簧效应的实施例。 一个实施例提供一种海洋声振动器，包括：外壳; 以及设置在所述外壳内的可变气体限流器; 其中所述海洋声音振动器具有至少部分地基于所述可变气体流量限制器可选择的共振频率。
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公开(公告)号：US20140226439A1
公开(公告)日：2014-08-14
申请号：US14061433
申请日：2013-10-23
Applicant: PGS Geophysical AS
Inventor： Stig Rune Lennart Tenghamn
IPC: G01V1/04
CPC classification number: G01V1/04 , B06B1/0276 , B06B1/045 , G01V1/005 , G01V1/145 , G01V1/38 , G01V2210/1214 , G01V2210/1293 , G10K9/121
Abstract: Embodiments relate to marine seismic vibrators for use in seismic surveying and associated methods of use. An embodiment provides a marine seismic vibrator comprising: a shell having a spring constant selected to provide a first resonance frequency within an operational frequency range of about 1 Hz and about 300 Hz; a driver disposed within the shell and having a first end and a second end; and a spring element coupled to the shell between the first end and the second end of the driver, wherein the spring element has a second mode of oscillation that provides a second resonance frequency within the operational frequency range.
Abstract translation: 实施例涉及用于地震测量和相关使用方法的海洋地震振动器。 一个实施例提供了一种海洋地震振动器，其包括：壳体，弹簧常数被选择为在约1Hz至约300Hz的工作频率范围内提供第一共振频率; 驱动器，其设置在壳体内并具有第一端和第二端; 以及弹簧元件，其联接到所述驱动器的所述第一端和所述第二端之间的壳体，其中所述弹簧元件具有在所述工作频率范围内提供第二共振频率的第二振荡模式。
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公开(公告)号：US11852770B2
公开(公告)日：2023-12-26
申请号：US16656288
申请日：2019-10-17
Applicant: PGS Geophysical AS
Inventor： Stig Rune Lennart Tenghamn , Manuel Beitz , Christian Strand
CPC classification number: G01V1/3808 , B63B35/68
Abstract: Techniques are disclosed relating to marine geophysical surveys. Various output characteristics of a vibratory source may be modified based on whether a source is targeting an identified portion of a survey area. The portion of the survey area may be detected during the survey or may be pre-identified. In some embodiments, a survey system drives a vibratory source using digital codes having different lengths based on whether the source is targeting an identified portion of a survey area. The disclosed techniques may improve imaging of geology under certain types of formations or may reduce environmental impact, in various embodiments.
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