公开(公告)号：EP2343574A1

公开(公告)日：2011-07-13

申请号：EP10195121.8

申请日：2010-12-15

申请人： PGS Geophysical AS

发明人： Karlsen, Kenneth ,  Austad, Martin ,  Ronaess, Marit ,  Edland, Svend ,  Rossberg, Knut

IPC分类号： G01V1/38

CPC分类号： G01V1/3826

摘要： A system for towing a marine geophysical sensor streamer includes a lead in line (5) extending from a tow vessel (7). A streamer front end termination (15) is coupled to an end of the lead in line and to a forward end of the sensor streamer. A floatation device (3) is coupled by a line proximate to the front end termination (15). A winch (10) is disposed on the floatation device to extend and retract the line. A depth sensor is disposed proximate the front end termination (15). A controller (22) is in signal communication with the winch and the depth sensor so that the forward end of the streamer is maintained at a selected depth in the body of water.

摘要翻译： 用于牵引海洋地球物理传感器拖缆的系统包括从拖船（7）延伸的线（5）中的引线。 拖缆前端终端（15）被连接到引线的一端并且连接到传感器拖缆的前端。 浮动装置（3）通过靠近前端终端（15）的线耦合。 绞车（10）设置在浮动装置上以延伸和缩回线。 深度传感器设置在前端终端（15）附近。 控制器（22）与绞盘和深度传感器信号通信，使得拖缆的前端保持在水体中选定的深度。

公开(公告)号：EP2081053A3

公开(公告)日：2011-05-18

申请号：EP09150374.8

申请日：2009-01-12

申请人： PGS Geophysical AS

发明人： Maas, Steven

IPC分类号： G01V1/20

CPC分类号： G01V1/201 ,  G01V1/226

摘要： An optical sensor cable (10) includes at least one light source fiber (14) extending substantially the entire length of the cable. A plurality of optical sensors (30) are functionally coupled at an input thereof to the at least one light source fiber. At least one signal return fiber extends substantially along the entire length of the cable and is functionally coupled to an output of each of the optical sensors. The at least one source light fiber (14) and the at least one signal return fiber are configured to be coupled at either end thereof to a respective one of a light source and a photodetection device.

公开(公告)号：EP2316044A1

公开(公告)日：2011-05-04

申请号：EP09781430.5

申请日：2009-08-03

申请人： PGS Geophysical AS

发明人： CAMBOIS, Guillaume

IPC分类号： G01V1/38

CPC分类号： G01V1/38

摘要： A method for marine seismic surveying includes determining at least an initial depth of a plurality of spaced apart seismic sensors in a body of water. The sensors each include a substantially collocated pressure responsive sensor and motion responsive sensor. A ghost time delay is determined for each sensor based on the at least an initial depth. Seismic signals detected by each motion responsive sensor and each pressure responsive sensor are cross ghosted. The at least initial depth is adjusted, and the determining ghost time delay and cross ghosted seismic signals are repeated until a difference between the cross ghosted motion responsive signal and the cross ghosted pressure responsive signal falls below a selected threshold.

公开(公告)号：EP2249184A1

公开(公告)日：2010-11-10

申请号：EP10160911.3

申请日：2010-04-23

申请人： PGS Geophysical AS

发明人： Gubin, Dennis ,  Hedgeland, David ,  Rypdal, Trygve Cato ,  Vageskar, Erling

IPC分类号： G01V1/38

CPC分类号： G01V1/3808

摘要： A system for passive acoustic monitoring in connection with seismic surveying includes a survey vessel (10) having a recording system thereon. At least one seismic energy source (24) is coupled to the vessel (10) by a first towing cable (35). The towing cable (35) includes at least one conductor therein. At least one seismic sensor streamer (20) is coupled to the vessel by a lead in cable. At least one acoustic sensor (28) is coupled to the at least one source by a second towing cable (26). The second towing cable (26) includes at least one signal conductor configured to transmit signals from the acoustic sensor to the at least one conductor in the first towing cable. The at least one acoustic sensor (28) is configured to detect marine mammal vocalization.

摘要翻译： 一种用于与地震测量有关的被动声学监测系统包括在其上具有记录系统的测量船（10）。 至少一个地震能量源（24）通过第一牵引缆索（35）联接到所述容器（10）。 牵引电缆（35）包括至少一个导体。 至少一个地震传感器拖缆（20）通过电缆引线连接到容器。 至少一个声学传感器（28）通过第二牵引缆线（26）联接到所述至少一个源。 第二牵引电缆（26）包括至少一个信号导体，其被配置为将信号从声学传感器传输到第一牵引电缆中的至少一个导体。 至少一个声学传感器（28）被配置为检测海洋哺乳动物的发声。

公开(公告)号：EP2068176A3

公开(公告)日：2010-06-30

申请号：EP08105673.1

申请日：2008-10-27

申请人： PGS Geophysical AS

发明人： Tenghamn, Stig Rune Lennart ,  Fromyr, Eivind ,  Ronaess, Marit ,  Mattsson, Rune Johan Magnus ,  Lindqvist, Ulf Peter ,  Frenje, Lena Kristina ,  Mattsson, Anders Goran ,  Vaage, Svein Torleif

IPC分类号： G01V3/12

CPC分类号： G01V3/12 ,  G01V3/083

摘要： A receiver streamer system for marine electromagnetic surveying includes a first streamer (302a), and a second streamer (302b) disposed substantially parallel to and spaced apart from the first streamer. A first pair of electrodes (306a1,306a2) is associated with the first streamer (302a) and a second pair of electrodes (306b1,306b2) is associated with the second streamer (302b). Each of the first and second pairs of electrodes is functionally associated with a voltage measuring circuit configured to measure voltage along an inline direction. At least one electrode on each of the first and second streamers is configured and associated with a voltage measuring circuit to make voltage measurements in a cross-line direction.

公开(公告)号：EP2184619A2

公开(公告)日：2010-05-12

申请号：EP09175053.9

申请日：2009-11-04

申请人： PGS Geophysical AS

发明人： Tenghamn, Stig Rune Lennart

IPC分类号： G01V1/02

CPC分类号： G01V1/005

摘要： A method for generating seismic energy for subsurface surveying includes operating a first seismic vibrator and operating at least a second seismic vibrator in a body of water substantially contemporaneously with the operating the first seismic vibrator. Each vibrator has a different selected frequency response, and the vibrators each are operated at a depth in the water such that a surface ghost amplifies a downward output of each vibrator within a selected frequency range. A signal used to drive each vibrator has a frequency range corresponding to the frequency range of each vibrator.

摘要翻译： 一种用于产生用于地下测量的地震能量的方法包括操作第一地震振动器并且在基本同时操作第一地震振动器的同时在水体中操作至少第二地震振动器。 每个振动器具有不同的选择的频率响应，并且振动器各自在水中的深度处操作，使得表面重影在选定的频率范围内放大每个振动器的向下输出。 用于驱动每个振动器的信号具有对应于每个振动器的频率范围的频率范围。

公开(公告)号：EP2128654A2

公开(公告)日：2009-12-02

申请号：EP09158177.7

申请日：2009-04-17

申请人： PGS Geophysical AS

发明人： Hillesund, Oyvind ,  Lunde, Nils

IPC分类号： G01V1/38

CPC分类号： G01V1/3826 ,  G01V1/3817 ,  G01V1/3835

摘要： A method for towing a streamer array includes moving a vessel along a body of water. Streamers (20) are towed by vessel. A relative position is determined at selected points along each streamer with respect to the vessel. At least one of the streamers (20) is deflected at at least one longitudinal position along the streamer in response to the determined positions to maintain the streamers in a selected geometry. The selected geometry is related to one of survey vessel heading, energy source trajectory, previously plotted sensor trajectory and a lateral separation related to distance from the towing vessel.

摘要翻译： 牵引拖缆阵列的方法包括沿船体移动船只。 飘带（20）由船只拖曳。 在相对于容器的每个拖缆的选定点处确定相对位置。 响应于确定的位置，拖缆（20）中的至少一个在沿着拖缆的至少一个纵向位置偏转，以将拖缆维持在所选择的几何形状。 所选择的几何与勘测船只航向，能源轨迹，先前绘制的传感器轨迹和与牵引船的距离相关的横向分离中的一个相关。

公开(公告)号：EP2081054A2

公开(公告)日：2009-07-22

申请号：EP09150793.9

申请日：2009-01-16

申请人： PGS Geophysical AS

发明人： Kluver, Tilman

IPC分类号： G01V1/36

CPC分类号： G01V1/36 ,  G01V2210/56

摘要： Pressure records and vertical particle velocity records from dual sensor towed streamer data are transformed to the inline wavenumber domain. A series of scaling filters are applied to the transformed vertical particle velocity records at each inline wavenumber, wherein each of the series of scaling filters is calculated for a different cross-streamer wavenumber range and in blocks of inline traces in which all seismic events are approximately linear. The pressure spectrum and the scaled vertical particle velocity spectrum are combined to separate upgoing and downgoing wavefield components. The separated upgoing and downgoing wavefield components are inverse-transformed back to the time-space domain.

摘要翻译： 从双传感器拖缆数据的压力记录和垂直质点振速记录被变换到测线波数域。 一系列缩放滤波器被应用到在每个主测线波数的变换的垂直质点振速记录，worin各缩放滤波器系列中的每一个计算针对不同的交叉拖缆波数范围，并在其中的内联线道的块的所有地震事件近似 线性的。 压力频谱和经过缩放的垂直质点振速频谱被组合以分离上行和下行波去场分量。 将分离的上行和下行波去场分量被逆变换回到时间空间域。

公开(公告)号：EP4242698A3

公开(公告)日：2023-10-25

申请号：EP23185423.3

申请日：2018-05-03

申请人： PGS Geophysical AS

发明人： VASBO, Christian ,  TONNESSEN, Rune ,  HAUGE, Thomas ,  JOHANSSON, Par ,  TUVED, Mikael ,  ANDERSSON, Kaj ,  CARLEN, Andreas

IPC分类号： G01V1/38 ,  G01V3/08

摘要： Embodiments relate generally to marine geophysical surveying. More particularly, embodiments relate to a wax application system (4) for application of a wax coating to a surface of a streamer. An embodiment may comprise a marine geophysical survey system. The marine geophysical survey system may comprise a streamer (6) and a wax application system (4) operable to receive the streamer on deployment and apply a wax coating to the streamer as the streamer is being deployed from a survey vessel into a body of water.

公开(公告)号：EP4249960A2

公开(公告)日：2023-09-27

申请号：EP23184077.8

申请日：2017-12-13

申请人： PGS Geophysical AS

发明人： BEITZ, Manuel ,  STRAND, Christian

IPC分类号： G01V1/18

摘要： Techniques are disclosed relating to configuring a marine seismic survey. In some embodiments, a vessel may be coupled to one or more seismic sources and one or more seismic streamers, and a second vessel may be coupled to one or more far offset seismic sources. The far offset seismic sources may be configured to actuate less frequently than the (near) offset seismic sources. Seismic data may then be collected, via the one or more seismic streamers, responsive to actuations of the offset sources and the far offset seismic sources.