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公开(公告)号：US20220381935A1
公开(公告)日：2022-12-01
申请号：US17334977
申请日：2021-05-31
发明人： Brenno Caetano Troca Cabella , Ruijia Wang , Yao Ge , Xiang Wu
摘要： Methods and systems are disclosed for determining a material property transition within a wellbore. In some embodiments, a method includes determining a material transition profile for each of a plurality of test points within a linear measurement path including, for each test point, determining an acoustic response for a first location within the linear measurement path, and determining an acoustic response for a second location within the linear measurement path. The test point is between the first and second locations. The method further includes generating a material transition profile for the test point based, at least in part, on a difference between the acoustic response at the first location and the acoustic response at the second location.
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2.发明授权公开(公告)号：US11500113B2
公开(公告)日：2022-11-15
申请号：US16547143
申请日：2019-08-21
摘要： A method for improving a signal-to-noise ratio of distributed acoustic sensing data may comprise transmitting an acoustic wave from an acoustic source into a subterranean formation, recording a first acoustic noise at a first time interval with a distributed acoustic sensing system, recording at least one acoustic wave and a second acoustic noise at a second time interval with the distributed acoustic sensing system, calculating a noise spectrum from the first time interval, calculating the noise spectrum in the second time interval, and removing the noise spectrum from acoustic data measured during the second time interval to identify acoustic data of the subterranean formation. A system may comprise an acoustic source, a distributed acoustic sensing system disposed within a well, and an information handling system.
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公开(公告)号：US11487031B2
公开(公告)日：2022-11-01
申请号：US16657563
申请日：2019-10-18
申请人： WESTERNGECO LLC
IPC分类号： G01V1/16 , G01P15/125 , G01V1/00 , G01V1/38 , G01V1/18 , G01C19/5712
摘要： The present disclosure is directed to a MEMS-based rotation sensor for use in seismic data acquisition and sensor units having same. The MEMS-based rotation sensor includes a substrate, an anchor disposed on the substrate and a proof mass coupled to the anchor via a plurality of flexural springs. The proof mass has a first electrode coupled to and extending therefrom. A second electrode is fixed to the substrate, and one of the first and second electrodes is configured to receive an actuation signal, and another of the first and second electrodes is configured to generate an electrical signal having an amplitude corresponding with a degree of angular movement of the first electrode relative to the second electrode. The MEMS-based rotation sensor further includes closed loop circuitry configured to receive the electrical signal and provide the actuation signal. Related methods for using the MEMS-based rotation sensor in seismic data acquisition are also described.
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公开(公告)号：US11460592B2
公开(公告)日：2022-10-04
申请号：US17468133
申请日：2021-09-07
发明人： Bradley I. Meier , Evan M. Glassman
IPC分类号： G01V1/22 , G01V1/00 , G01V1/16 , G01W1/02 , H04W76/10 , G06Q20/08 , G01P5/00 , H04W4/80 , H04W84/12 , G01P1/07
摘要： A system for collecting and managing seismic data via an external communications network comprises one or more seismic stations, each including a seismic measurement apparatus producing seismic signals, a station processor converting the signals to seismic data, a station memory securely storing the seismic data on site and a station communication interface transmitting the seismic data onto an external network. The system further comprises one or more data servers, each including a server computing device, a server communication interface receiving the seismic data from the seismic stations and a server memory storing the received seismic data. The data server can determine if the received seismic data satisfies predetermined conditions for certification and/or triggering a payout in accordance with a contract, and can thereafter transmit the appropriate data signals to another location on the external communications network.
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公开(公告)号：US11454732B1
公开(公告)日：2022-09-27
申请号：US17217773
申请日：2021-03-30
发明人： Allan Robert Châtenay , Joshua Gilbert Barnet Abbott , Selina Ashley Samodien , John Gerard Bouska , Cameron Rankin
摘要： A seismic sensor stake, system and method configured to orientate three seismic 1C sensors orthogonally in the X, Y, and Z directions. The present technology stake is configured to efficiently and effectively convert three independent seismic sensors into a single three seismic sensor unit. Multiple stakes can be inserted into the ground of a geographical area to provide highly accurate seismic survey of subterranean hydrocarbon formations. Each seismic sensor can include a slot that slidable receives a threaded member of a mounting sides of the stake. A retaining nut can secure the seismic sensor in place upon rotation of the sensor. A stake bit can be utilized with an impact hammer to form holes in hard or frozen ground for quick insertion of the stake into the ground.
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公开(公告)号：US20220252748A1
公开(公告)日：2022-08-11
申请号：US17614283
申请日：2019-05-28
发明人： Mathias CONTANT
摘要： Example seismic sensors and methods relating thereto are disclosed. In an embodiment, the seismic sensor includes an outer housing and a proof mass disposed in the inner cavity of the outer housing. In addition, the seismic sensor includes a first biasing member positioned in the inner cavity between the proof mass and an outer housing upper end that is configured to flex in response to axial movement of the outer housing relative to the proof mass. Further, the seismic sensor includes a second biasing member positioned in the inner cavity between the first biasing member and the outer housing upper end. Still further, the seismic sensor includes a sensor element positioned in the inner cavity between the proof mass and an outer housing lower end that is configured to generate a potential in response to movement of the outer housing relative to the proof mass.
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公开(公告)号：US20220214465A1
公开(公告)日：2022-07-07
申请号：US17609604
申请日：2019-05-07
申请人： TOTALENERGIES SE
发明人： Frank ADLER , Jean-Luc BOELLE , Isabella MASONI , Jules BROWAEYS , Rémi ESTIVAL , Bruno PAGLICCIA , Ekaterina SHIPILOVA , Florent BERTINI , Pierre-Olivier LYS
摘要： The tool comprises-: a support comprising at least a lower surface intended to rest on the ground; a lifting system, carried by the support, the lifting system having at least a movable extraction member able to cooperate with the seismic apparatus and an actuator able to actuate the extraction member to lift the seismic apparatus out of the ground, the distance separating vertically the lower surface from the lifting system being at most 2 m.
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公开(公告)号：US11307326B2
公开(公告)日：2022-04-19
申请号：US15961693
申请日：2018-04-24
申请人： PGS Geophysical AS
IPC分类号： G01H9/00 , G01V13/00 , G01H11/08 , G01V1/16 , G01V1/18 , H04R1/44 , G01L23/10 , G01L27/00 , G01P15/09 , G01P21/00 , H01L41/113 , H04R1/02 , H04R1/42 , G01V1/38
摘要： 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：US11257472B2
公开(公告)日：2022-02-22
申请号：US15739249
申请日：2016-05-12
摘要： The invention relates to hydroacoustics and more specifically to hydroacoustic devices comprising, disposed in a single housing, a converter of liquid-medium oscillations and electrical signals, capable of receiving and/or transmitting hydroacoustic signals, the converter being disposed on a board which is connected to a switch cable for providing power and transmitting electrical signals, and may be used as a receiver and/or transmitter of hydroacoustic signals in water. According to the invention, the housing of the to hydroacoustic device is formed by the outer surfaces of the converter and board, and by a protective material which coats all of said surfaces, said material allowing for a transmission of hydroacoustic oscillations and being capable of transitioning from a highly-elastic or viscous-flow state to a solid state. The achieved technical result consists in simplifying the design of the device.
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公开(公告)号：US11255990B2
公开(公告)日：2022-02-22
申请号：US16646197
申请日：2017-10-25
申请人： HITACHI, LTD.
摘要： An internal structure detection system includes: two kinds of sensors with different operating principles for receiving reflected waves of vibration applied to an inspection target in an investigation area; and a processing apparatus that detects an internal structure of the inspection target by using the sensor data received by the two kinds of sensors. The two kinds of sensors are deployed in the investigation area with different densities, in a distributed manner.
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