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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：US11889760B2
公开(公告)日：2024-01-30
申请号：US16763468
申请日：2018-12-17
Applicant: PGS Geophysical AS
Inventor： David Thomas Booth
CPC classification number: H10N30/302 , G01L1/16 , G01P15/08 , G01V1/186 , G01V1/201 , G01V1/3808 , G01V2210/1423 , G01V2210/32
Abstract: A seismic pressure and acceleration sensor can include a hydrophone having a volume encapsulated by an enclosure. The enclosure can include, a pressure-sensitive surface and a pressure-insensitive support structure. The sensor can also include an accelerometer positioned within the encapsulated volume. The accelerometer is mechanically isolated from the pressure-sensitive surface and mechanically coupled to the pressure-insensitive support structure.
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公开(公告)号：US20220406988A1
公开(公告)日：2022-12-22
申请号：US17893872
申请日：2022-08-23
Applicant: PGS Geophysical AS
Inventor： Stig Rune Lennart Tenghamn , David Thomas Booth
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：US20200303620A1
公开(公告)日：2020-09-24
申请号：US16348600
申请日：2018-12-17
Applicant: PGS Geophysical AS
Inventor： Stig Rune Lennart Tenghamn , David Thomas Booth
IPC: H01L41/113 , G01V1/18 , G01V1/38
Abstract: Seismic pressure and particle motion measurement can include simultaneously determining a first voltage signal and a second voltage signal from each one of a plurality of sensors located in a streamer using triple piezoelectric structures. The first voltage signal can represent pressure of a respective one of the plurality of sensors, and the second voltage signal can represent acceleration of a respective one of the plurality of sensors. Vertical components of the acceleration can be determined based on the simultaneous determination, and noise associated with the sensor can be reduced based on the first voltage signal, the second voltage signal, and the vertical components.
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