公开(公告)号：US12038545B1

公开(公告)日：2024-07-16

申请号：US18599172

申请日：2024-03-07

申请人： Institute of Geology and Geophysics, Chinese Academy of Sciences

发明人： Yuan Wang ,  Chunlei Zhao

IPC分类号： G01V1/18 ,  G01V1/16 ,  G01V1/38

CPC分类号： G01V1/162 ,  G01V1/186 ,  G01V1/3835 ,  G01V2210/1427

摘要： A freely-combinable multifunctional ocean-bottom seismic detection device includes a cabin body having a sealed structure and is made of a titanium alloy. A hydrophone, a first power interface, and a signal transmission sealing connector are mounted on an upper flange. A digital collector, a broadband seismometer, a global positioning system (GPS), and an electronic compass are mounted in the cabin body. The broadband seismometer is mounted on a leveling mechanism. Rechargeable lithium batteries are mounted in sealed battery compartments. A settlement coupling frame is arranged below the cabin body and is detachably connected to the cabin body. An uncoupling mechanism is mounted at a top of the cabin body. The device has a synchronous arrangement function of deployment as an independent node with data stored inside the instrument, and quick integration into a seabed foundation (or a subsurface buoy) with real-time data transmission.

公开(公告)号：US11892582B2

公开(公告)日：2024-02-06

申请号：US17005784

申请日：2020-08-28

申请人： Magseis FF LLC

发明人： Graham Gillott

IPC分类号： G01V1/34 ,  G01V1/18 ,  G01V1/30 ,  G01V1/37 ,  G01V1/36

CPC分类号： G01V1/345 ,  G01V1/181 ,  G01V1/186 ,  G01V1/301 ,  G01V1/375 ,  G01V1/364

摘要： A system to detect and control noise in seismic surveys is provided. The system receives, responsive to a seismic wave generated by a source, seismic data detected by a sensor component of a seismic data acquisition unit. The system generates, for windows of the seismic data, Hough tensors for seismic data transforms in multiple dimensions. The system detects, based on a comparison of an eigenvector and eigenvalue of a canonical matrix of the Hough tensors with a historical eigenvector and eigenvalue of a historical canonical matrix of historical Hough tensors of historical seismic data, a first presence of noise in the seismic data. The first presence of noise can correspond to a noisy spectra pattern in a seismic data transform of the seismic data. The system provides, responsive to detection of the first presence of noise in the seismic data, a notification to adjust a characteristic of the seismic survey.

公开(公告)号：US11889760B2

公开(公告)日：2024-01-30

申请号：US16763468

申请日：2018-12-17

申请人： PGS Geophysical AS

发明人： David Thomas Booth

IPC分类号： G01V1/16 ,  H10N30/30 ,  G01V1/18 ,  G01V1/38 ,  G01L1/16 ,  G01P15/08 ,  G01V1/20

CPC分类号： H10N30/302 ,  G01L1/16 ,  G01P15/08 ,  G01V1/186 ,  G01V1/201 ,  G01V1/3808 ,  G01V2210/1423 ,  G01V2210/32

摘要： 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.

公开(公告)号：US11860327B2

公开(公告)日：2024-01-02

申请号：US17573801

申请日：2022-01-12

申请人： SERCEL

发明人： Viktor Smirnov ,  Clémence Berthonaud ,  Julien Ribette

IPC分类号： G01V1/28 ,  G01V1/38 ,  G01V1/18

CPC分类号： G01V1/3843 ,  G01V1/186 ,  G01V1/28 ,  G01V2210/1423

摘要： A method for verticalizing recorded seismic data, the method including recording first data with a particle motion sensor, wherein the particle motion sensor is located on a streamer, and the particle motion sensor is configured to be insensitive to a direct current, recording second data with a gravity motion sensor, wherein the gravity motion sensor is also located on the stream, and the gravity motion sensor is configured to be sensitive to the direct current and temporally synchronous to the particle motion sensor, selecting a cost function that associates corresponding values of the first data and the second data, determining a misalignment angle from maximizing the cost function, wherein the misalignment angle describes a misalignment between corresponding axes of the particle motion sensor and the gravity motion sensor, and correcting seismic data recorded by the particle motion sensor based on the misalignment angle so that the corrected seismic data is verticalized with regard to gravity.

公开(公告)号：US20230417939A1

公开(公告)日：2023-12-28

申请号：US18342292

申请日：2023-06-27

申请人： RPS GROUP, INC.

发明人： David John O'Hara ,  Patrick RATH

IPC分类号： G01V1/38 ,  G01V1/18 ,  G01V1/34

CPC分类号： G01V1/38 ,  G01V1/186 ,  G01V1/34

摘要： Methods and systems are disclosed for detecting marine mammals. Transformed input data can be input to a model trained to detect the presence or absence of marine mammal vocalizations in acoustic data.

公开(公告)号：US11745835B1

公开(公告)日：2023-09-05

申请号：US17015144

申请日：2020-09-09

申请人： The United States of America as represented by the Secretary of the Navy

发明人： Eric H Kirchoff ,  Michael J Kroger

IPC分类号： B63B21/66 ,  B63B73/00 ,  G01V1/20 ,  G01V1/18 ,  G01V1/38

CPC分类号： B63B21/66 ,  B63B73/00 ,  G01V1/186 ,  G01V1/202 ,  G01V1/3843

摘要： An assembly with a first coupling having a forward bulkhead device is provided. The forward bulkhead device contains a first connector insert having first end connections for wires and optical fibers of an acoustic array. The assembly also includes a second coupling having an aft bulkhead device therein. The aft bulkhead device contains a second connector insert having second end connections for the wires and optical fibers of the acoustic array. The forward bulkhead device further includes an alignment assembly. The alignment assembly is matable with the aft bulkhead device to align the first connector insert with the second connector insert. The forward bulkhead device further includes a locking ring connecting the forward bulkhead device with the aft bulkhead device.

公开(公告)号：US11674383B2

公开(公告)日：2023-06-13

申请号：US17088386

申请日：2020-11-03

申请人： Halliburton Energy Services, Inc.

发明人： Yadong Wang ,  Yao Ge ,  Xiang Wu

IPC分类号： E21B47/107 ,  E21B47/117 ,  G01V1/18 ,  G01V1/50

CPC分类号： E21B47/117 ,  E21B47/107 ,  G01V1/186 ,  G01V1/50

摘要： A hydrophone array tool as described herein is configured to locate leakages throughout a borehole with improved accuracy using acoustic beamforming techniques with acoustic velocity estimation. An acoustic beamforming processor generates an initial beamforming map and corresponding initial estimated leakage location using acoustic measurements throughout the borehole. The acoustic beamforming processor generates additional beamforming maps at the initial estimated leakage location, each additional beamforming map corresponding to an acoustic velocity within a range of anticipated acoustic velocities. An acoustic velocity estimator determines an acoustic velocity corresponding to a beamforming map with spatial statistics that indicate a most prominent leakage location. The acoustic beamforming processor updates the leakage location according to this beamforming map for improved accuracy.

公开(公告)号：US11656375B2

公开(公告)日：2023-05-23

申请号：US16707410

申请日：2019-12-09

申请人： Magseis FF LLC

发明人： Tom O'Brien ,  Michael Morris ,  Peter Weatherall

IPC分类号： G01V13/00 ,  G01V1/18

CPC分类号： G01V1/186 ,  G01V13/00

摘要： Systems, apparatuses, and method of measuring hydrophone impedance are provided herein. A sensor can convert an acoustic wave received via a liquid medium into an electric signal. A signal encoder can be coupled with the sensor to receive the electric signal. A test signal generator can be coupled in series with the sensor and the signal encoder and can generate a test signal. The test signal can measure an impedance of the sensor. A switch component can be coupled in series with the sensor, the signal encoder, and the test signal generator. The switch component can route the test signal to a first terminal of the sensor and through a second terminal of sensor during a first operational state. The switch component can route the test signal to the second terminal of the sensor and through the first terminal of sensor during a second operational state.

公开(公告)号：US20180106915A1

公开(公告)日：2018-04-19

申请号：US15704835

申请日：2017-09-14

申请人： PGS Geophysical AS

发明人： Stig Rune Lennart Tenghamn

IPC分类号： G01V1/18 ,  G01V1/20

CPC分类号： G01V1/186 ,  G01V1/162 ,  G01V1/201 ,  G01V1/38 ,  G01V13/00 ,  G01V2210/1423

摘要： 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.

公开(公告)号：US09835750B2

公开(公告)日：2017-12-05

申请号：US13736331

申请日：2013-01-08

申请人： CGGVERITAS SERVICES SA

发明人： Thierry Brizard

IPC分类号： G01V1/38 ,  B63B22/02 ,  B63B22/18 ,  G01V1/18 ,  B63B22/00

CPC分类号： G01V1/3835 ,  B63B22/02 ,  B63B22/18 ,  B63B2022/006 ,  G01V1/186 ,  G01V1/3817 ,  G01V1/3843

摘要： A seismic survey system for recording seismic data underwater in the presence of underwater currents. The system includes first plural buoys configured to descend in water at a predetermined depth (H1) and each having a seismic receiver for recording the seismic data; a first vessel configured to launch the first plural buoys along a first line; and a second vessel configured to recover the first plural buoys at a second line, wherein there is a predetermined distance between the first and second lines. The first plural buoys are configured to travel underwater, at substantially the first predetermined depth (H1), from the first line to the second line, due exclusively to the underwater currents.