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172.发明授权公开(公告)号：US12105240B2
公开(公告)日：2024-10-01
申请号：US17065155
申请日：2020-10-07
Applicant: PGS Geophysical AS
Inventor： Stig Rune Lennart Tenghamn
CPC classification number: G01V1/3843 , G01V1/201 , G01V1/3808 , G01V1/3817
Abstract: A marine streamer includes: an optical fiber disposed along a length of the streamer; a light source; and light analysis equipment, wherein: the length is at least 20 km, a diameter of the streamer is no more than 25 mm, the optical fiber, light source, and light analysis equipment are configured to provide a receiver sampling density of at least 1 per meter, and the streamer is configured to be towed nominally horizontally through a body of water. A method of marine surveying includes: towing a streamer spread at a first depth of 10 m to 30 m with a survey vessel; and towing Distributed Acoustic Sensing (DAS) streamers at a second depth of greater than 30 m. A method includes: acquiring long-offset data with sensors distributed along the DAS streamers.
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公开(公告)号：US20240279470A1
公开(公告)日：2024-08-22
申请号：US18648752
申请日：2024-04-29
Applicant: PGS Geophysical AS
Inventor： Øyvind Hillesund
CPC classification number: C08L83/04 , B29C48/001 , B29C48/10 , C08L91/00 , G01N33/24 , G01V1/201 , B29K2083/00 , B29K2105/0061
Abstract: This disclosure presents a streamer filler material that is a low density gel formed from a two-part, mix-curable polymer, and methods of making streamers using such materials. One embodiment of the filler material features a two-part silicone gel mixed with a paraffinic oil. The two-part silicone gel can make up 15% to 25%, by weight or volume, of the mixture. Methods of making such materials include forming a first unreactive mixture having a first reactant, promoter, and/or catalyst and a second unreactive mixture having a second reactant, promoter, and/or catalyst and mixing the first and second mixtures in a paraffinic oil system to make a gel. The streamer can be loaded with the filler by pumping or extruding the mixture.
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公开(公告)号：US12066585B2
公开(公告)日：2024-08-20
申请号：US17153259
申请日：2021-01-20
Applicant: PGS Geophysical AS
Inventor： David O'Dowd
CPC classification number: G01V1/3808 , B63B21/66 , G01V1/201 , G01V1/3826
Abstract: A method includes: towing sources in a wide-tow source survey configuration; actuating at least one of the sources to create a signal; detecting the signal with a first receiver of a first plurality of streamers; and detecting the signal with a second receiver of a second plurality of streamers, wherein: the second plurality of streamers are interspersed with streamers from the first plurality of streamers in the port outer region and in the starboard outer region. A system includes: sources in a wide-tow source survey configuration and coupled to the survey vessel; a first plurality of streamers comprising a regular streamer spread and coupled to the survey vessel; and a second plurality of streamers coupled to the survey vessel, wherein: the second plurality of streamers are interspersed with streamers from the first plurality of streamers in the port outer region and in the starboard outer region.
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公开(公告)号：US11940583B2
公开(公告)日：2024-03-26
申请号：US17534630
申请日：2021-11-24
Applicant: Halliburton Energy Services, Inc.
Inventor： Xiang Wu , Mark Elliott Willis , David Andrew Barfoot
CPC classification number: G01V1/42 , E21B47/135 , G01H9/004 , G01V1/201 , G01V1/226 , G01V1/48 , G01V1/52 , G01V2210/121 , G01V2210/1234 , G01V2210/1429 , G01V2210/161 , G01V2210/324
Abstract: Various embodiments include apparatus and methods implemented to take into consideration gauge length in optical measurements. In an embodiment, systems and methods are implemented to interrogate an optical fiber disposed in a wellbore, where the optical fiber is subjected to seismic waves, and to generate a seismic wavefield free of gauge length effect and/or to generate a prediction of a seismic wavefield of arbitrary gauge length, based on attenuation factors of a plurality of wavefields acquired from interrogating the optical fiber. In an embodiment, systems and methods are implemented to interrogate an optical fiber disposed in a wellbore, where the optical fiber is subjected to seismic waves, and to convert a seismic wavefield associated with a first gauge length to a seismic wavefield associated with a different gauge length that is a multiple of the first gauge length. Additional apparatus, systems, and methods are disclosed.
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Patent Agency Ranking
公开(公告)号：US11774617B2
公开(公告)日：2023-10-03
申请号：US17144271
申请日：2021-01-08
Applicant: Ocean University of China
Inventor： Siyou Tong , Kai Wang , Xiugang Xu , Zhangju Liu , Dan Liang
CPC classification number: G01V1/3808 , G01V1/201
Abstract: The present invention provides a five-component marine natural gas hydrate intelligent sensing node, comprising a titanium alloy compartment, an information acquisition unit, an integrated control chip, and a power module; the integrated control chip comprises an intelligent computing unit and a transmission unit; the intelligent computing unit is configured for acquiring quality monitoring indicators of marine natural gas hydrates by feature extraction and transmitting reduced represented features to a monitoring device on the sea surface via the transmission unit. The present invention has overcome problems of impossible timely quality monitoring due to blind acquisition process, promised a controllable undersea node working status, and acquired data are complete without any loss, which doesn't only facilitate nonconventional energy resources such as marine hydrates prospection, and is also of great application prospect and value in oil and gas resources exploration, geological hazards precautions and evaluation.
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公开(公告)号：US11682373B2
公开(公告)日：2023-06-20
申请号：US16829033
申请日：2020-03-25
Applicant: Raytheon Company
Inventor： Joseph M. Misulia , Curtis B. Carlsten , Peter M. Willey
CPC classification number: G10K11/006 , G01V1/16 , G01V1/168 , G01V1/3843 , G01V1/186 , G01V1/201 , H04R1/08
Abstract: A packing module includes a volumetrically efficient structure for separately retaining sensors and a cable of a sensor array. The packing module includes a tray that supports the sensors and a retaining leaf arrangement that extends outwardly from the tray to retain the cable on the tray. The retaining leaf arrangement includes a plurality of nested leaves that are spaced relative to each other. Packing the module includes placing the sensors separately and in succession on the tray and inserting a portion of the cable in the retaining leaf arrangement in between each placing of a sensor. The placement of a sensor and insertion of a portion of the cable occurs alternately until the entire sensor array is accommodated. Deployment of the sensor array may occur by alternately removing a sensor and a portion of the cable until the sensor array is displaced from the module.
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178.发明申请公开(公告)号：US20190187312A1
公开(公告)日：2019-06-20
申请号：US16221128
申请日：2018-12-14
Applicant: PGS Geophysical AS
CPC classification number: G01V1/282 , G01V1/201 , G01V1/303 , G01V1/3808 , G01V1/3843 , G01V2210/671 , G01V2210/675 , G01V2210/74
Abstract: This disclosure describes processes and systems for generating a high-resolution velocity model of a subterranean formation from recorded seismic data gathers obtained in a marine seismic survey of the subterranean formation. A velocity model is computed by iterative FWI using reflections, resolving the velocity field of deep subterranean targets without requiring ultralong offsets. The processes and systems use of an impedance sensitivity kernel to characterize reflections in a modeled wavefield, and then use the reflections to compute a velocity sensitivity kernel that is used to produce low-wavenumber updates to the velocity model. The iterative process is applied in a cascade such that position of reflectors and background velocity are simultaneously updated. Once the low-wavenumber components of the velocity model are updated, the velocity model is used as an input of conventional FWI to introduce missing velocity components (i.e., high-wavenumber) to increase the resolution of the velocity model.
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公开(公告)号：US20180348388A1
公开(公告)日：2018-12-06
申请号：US15571811
申请日：2016-04-28
Applicant: Fugro Technology B.V.
Inventor： Michaël Dominique HOONAKKER , Paul W.P. HEDGES
CPC classification number: G01V1/201
Abstract: System comprising at least one conductors and at least one sensing node which comprises at least one sensor device wherein each conductor is provided with at least one electrically conductive core surrounded by an insulating sheath wherein the at least one sensor device is electrically connected with at least one conductive core of at least one first conductor of the at least one conductor. The at least one node is provided with an attachment device for mechanically attaching the at least one node to at least one second conductor of the at least one conductor. The attachment device is arranged for mechanically attaching the at least one node to the at least one first conductor such that the insulating sheath at the location where the at least one node is attached to the at least one first conductor remains intact. The node is further provided with an inductive coupling device which is arranged to provide the electrical connection in the form of an inductive coupling of the at least one sensor device with at least one conductive core of the at least one second conductor.
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公开(公告)号：US20180321402A1
公开(公告)日：2018-11-08
申请号：US15957705
申请日：2018-04-19
Applicant: PGS Geophysical AS
CPC classification number: G01V1/201 , G01V1/208 , G01V2001/207
Abstract: Geophysical sensor cables. At least some of the example embodiments are sensor cable sections including hydrophone groups defined along a geophysical sensor cable section, the hydrophone group may include: a substrate of flexible material having electrical traces thereon, the substrate within the internal volume or embedded within the outer jacket, and the substrate having has a length measured parallel to the longitudinal axis; and a plurality of hydrophones mechanically coupled to the substrate. The substrate may have a variety of shapes, including one or more strips, helix, double helix, and cylindrical.
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