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1.发明公开公开(公告)号：US20240125963A1
公开(公告)日：2024-04-18
申请号：US18395727
申请日：2023-12-25
发明人： Liang GOU , Gang YU , Haibo LIU , Zhaohong XU , Ximing WANG , Shujun XIA , Shujie AN , Mengxiong XIAO
CPC分类号： G01V1/3808 , G01V1/201 , G01V1/3835 , G01V1/3852 , G01V2001/204
摘要： The present disclosure provides a method and a system for acquiring seismic data of a four-component ocean bottom node (OBN). The method is implemented by the system, comprising controlling installations of a plurality of ocean bottom submerged buoys and a plurality of four-component OBN seismic data acquisition instruments and sending positioning signals and timing signals to the plurality of ocean bottom submerged buoys through armored opto-electronic composite cables. The method also includes obtaining real-time and uninterrupted water temperature data, pressure data, density data, and salt saturation data along the armored opto-electronic composite cables from the ocean surface to locations of the plurality of ocean bottom submerged buoys, and calculating real-time and three-dimensional data of waters of a whole measurement work area through interpolation. The method further includes performing real-time correction on a hydroacoustic velocity of each hydroacoustic propagation trajectory based on the location, the hydroacoustic propagation trajectory and the three-dimensional data of each acquisition instrument.
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公开(公告)号：US11906681B2
公开(公告)日：2024-02-20
申请号：US17688599
申请日：2022-03-07
发明人： Fabio Mancini , Ben Hollings
CPC分类号： G01V1/3852 , B63G8/001 , B63G8/22 , B63G8/24 , G01V1/3808 , G01V1/3835 , B63B2207/02 , B63G2008/004 , G01V2001/207
摘要： A submersible node and a method and system for using the node to acquire data, including seismic data is disclosed. The node incorporates a buoyancy system to provide propulsion for the node between respective landed locations by varying the buoyancy between positive and negative. A first acoustic positioning system is used to facilitate positioning of a node when landing and a second acoustic positioning system is used to facilitate a node transiting between respective target landed locations.
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公开(公告)号：US11899152B2
公开(公告)日：2024-02-13
申请号：US16516999
申请日：2019-07-19
IPC分类号： G01V1/38
CPC分类号： G01V1/3835 , G01V1/3808
摘要： A ranging system comprises a plurality of receivers. A plurality of transmitters is configured to generate acoustic or ranging signals over one or more channels. A processor is configured to define a subset of the transmitters within a predefined limited range or listening distance of each receiver. In the subset, the transmitters are configured to generate the acoustic signals over different channels.
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公开(公告)号：US10018741B2
公开(公告)日：2018-07-10
申请号：US14867144
申请日：2015-09-28
申请人： PGS Geophysical AS
发明人： Thomas Owen Davies , Oddvar Eikeset
CPC分类号： G01V1/3817 , B63B21/66 , G01V1/3808 , G01V1/3835 , G01V1/3843
摘要： Methods and related systems are disclosed. In an embodiment, a method includes determining a distance between a tow vessel and a predetermined point along a line being towed by the tow vessel. In addition, the method includes adjusting a length of the line from the tow vessel. Further, the method includes determining a change in the distance a predetermined amount of time after adjusting the length of the line. Still further, the method includes determining whether a difference between the change in the distance and the adjustment of the length exceeds a threshold value.
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公开(公告)号：US09874651B2
公开(公告)日：2018-01-23
申请号：US13736342
申请日：2013-01-08
CPC分类号： G01V1/3835 , B63B22/02 , B63B22/18 , B63B2022/006 , G01V1/186 , G01V1/3817 , G01V1/3843
摘要： A buoy for recording seismic signals while underwater. The buoy includes a body; a buoyancy system configured to control a buoyancy of the body to descend to a predetermined depth (H1); a propulsion system configured to actively adjust a position of the body at a given position (X, Y); a seismic sensor located on the body and configured to record the seismic signals; and a control device configured to control the buoyancy system to maintain the body substantially at the predetermined depth (H1) and to control the propulsion system to maintain the body substantially at the given position (X, Y) while the buoy records seismic data, and also to instruct the seismic sensor when to record seismic signals.
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公开(公告)号：US20170293042A1
公开(公告)日：2017-10-12
申请号：US15482175
申请日：2017-04-07
发明人： Timothy A. Dudley , Curt Schneider
CPC分类号： G01V1/3843 , B63B21/66 , B63B27/36 , B63B2211/02 , G01V1/137 , G01V1/3808 , G01V1/3826 , G01V1/3835 , G01V1/3861 , G05D1/0206
摘要： An unmanned vessel system can include a hull system configured to provide buoyancy, one or more seismic sources configured to generate seismic energy, and a deployment apparatus configured to deploy the seismic sources from the hull system to a water body or water column. A control system can be configured to operate the deployment apparatus, in order to deploy the one or more seismic sources so that the seismic energy propagates through the water column. A compressed air source can be provided on board the unmanned vessel system, with a source line configured to provide compressed air to the seismic sources.
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公开(公告)号：US20170139068A1
公开(公告)日：2017-05-18
申请号：US15353450
申请日：2016-11-16
申请人： KIETTA
发明人： Luc Haumonte
IPC分类号： G01V1/38
CPC分类号： G01V1/3817 , B63B21/66 , G01V1/3808 , G01V1/3826 , G01V1/3835 , G01V2001/204 , G01V2001/207
摘要： The invention notably relates to a method for controlling depth of a seismic cable having ballasts spaced apart along its length and providing a neutral buoyancy to the seismic cable, the seismic cable being adapted for midwater data acquisition, each end of the seismic cable being connected to a respective surface autonomous vessel exerting tension on the cable through a respective lead-in cable having a negative buoyancy, the method comprising, with respect to a target depth, varying the deployed length of each lead-in cable and/or the tension exerted on the cable by each respective surface autonomous vessel.This provides an improved solution for seismic prospecting in aquatic mediums.
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8.发明授权公开(公告)号：US09632196B2
公开(公告)日：2017-04-25
申请号：US14186752
申请日：2014-02-21
申请人： SERCEL
发明人： Christophe Gerze
IPC分类号： G01V1/38
CPC分类号： G01V1/3835
摘要： A method for estimating a position of a first acoustic linear antenna relative to a second acoustic linear antenna belonging to a network of towed acoustic linear antennas on which are arranged a plurality of nodes. The method includes: setting a first plurality of nodes arranged on the first antenna to act as sender nodes and a second plurality of nodes arranged on the second antenna to act as receiver nodes; forming a first group of sender nodes each sending a same first acoustic signature; for each receiver node: obtaining a propagation duration and establishing a geometrical figure representative of potential positions of a sender node, based on the propagation duration and the first acoustic signature; determining a set of common points between the geometrical figures; estimating the position of the first antenna relative to the second antenna based on the set of common points.
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公开(公告)号：US20170097427A1
公开(公告)日：2017-04-06
申请号：US15224037
申请日：2016-07-29
发明人： Chan-ho Park , Won-sik Kim , Hyun-do Kim , Seong-pil Kim
CPC分类号： G01V1/201 , G01V1/3808 , G01V1/3835 , G01V1/3843
摘要： The present invention relates to a 3D seismic marine survey apparatus. More particularly, it relates to a foldable-fixing type 3D seismic survey apparatus for a small ship and a method of 3D seismic survey using the foldable-fixing type 3D seismic survey apparatus. The foldable-fixing type 3D seismic survey apparatus for a small ship includes: a seismic wave generator; and a seismic unit that includes a plurality of floating board units, and foldable fixing-frames connecting and fixing the floating board units to each other in a floating board array such that relative positions of the floating board units are fixed, and being folded for transporting and unfolded for installing, in which the seismic unit receives 3D seismic waves while being towed behind the seismic wave generator after being moved and unfolded at a survey location.
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公开(公告)号：US20170017006A1
公开(公告)日：2017-01-19
申请号：US15124881
申请日：2015-03-13
申请人： CGG SERVICES SA
发明人： Tony NOSS
IPC分类号： G01V1/38
CPC分类号： G01V1/3835 , G01V1/3852
摘要： Seismic data recorded on an ocean bottom node (OBN) is used to determine observed direct arrival times at the OBN from a set of seismic source shots having a time span that is only a portion of an entire span time for a shot line. The observed direct arrival times for each shot in the set of seismic source shots are compared statistically with a plurality of predicted direct arrival times for each shot in the set of seismic source shots to derive a statistical measure of differences across all shots. Each predicted direct arrival time is associated with a unique proposed position of the OBN. The unique proposed position that minimizes the statistical measure of differences between the observed direct arrival times and the predicted direct arrival times is selected for each shot in the set of shots as a corrected OBN position.
摘要翻译： 记录在海底节点（OBN）上的地震数据用于确定OBN的观测到的直接到达时间，该时间跨度仅为拍摄线的整个跨度时间的一部分。 在该组地震源射击中观察到的每次射击的直接到达时间与该组地震源射击中的每个射击的多个预测直接到达时间进行统计学比较，以得出所有射击之间的差异的统计度量。 每个预测的直接到达时间与OBN的独特建议位置相关联。 作为校正的OBN位置，针对拍摄组中的每个拍摄选择最小化观察到的直接到达时间和预测的直接到达时间之间的差异的统计测量值的独特建议位置。
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