公开(公告)号：US09274241B2

公开(公告)日：2016-03-01

申请号：US13828239

申请日：2013-03-14

Applicant: PGS Geophysical AS

Inventor： Ulf Peter Lindqvist ,  Andras Robert Juhasz ,  Rune Johan Magnus Mattsson ,  Lars Erik Magnus Björnemo

IPC: G01V3/00 ,  G01V3/12 ,  G01V3/08 ,  G01V3/15

CPC classification number: G01V3/12 ,  G01V3/083 ,  G01V3/15

Abstract: Disclosed are methods and systems for suppression of noise in electromagnetic surveying that includes stacking two or more frames of electromagnetic data. An example embodiment discloses a method for suppressing swell-induced noise in an electromagnetic survey, comprising: measuring an electromagnetic field parameter at one or more positions to provide an electromagnetic signal, the electromagnetic signal comprising a swell-induced portion; and stacking two or more frames of the electromagnetic signal to provide a stacked signal in which the swell-induced portion is suppressed, wherein the swell-induced portion is out of phase between the two or more frames.

Abstract translation: 公开了用于抑制电磁勘测中的噪声的方法和系统，包括堆叠两个或更多个电磁数据帧。 一个示例性实施例公开了一种用于抑制电磁勘测中的膨胀引起的噪声的方法，包括：测量一个或多个位置处的电磁场参数以提供电磁信号，所述电磁信号包括溶胀诱发部分; 并且堆叠电磁信号的两个或更多个帧以提供其中抑制了溶胀诱发部分的堆叠信号，其中膨胀诱发部分在两个或更多个帧之间不相位。

公开(公告)号：US20140266216A1

公开(公告)日：2014-09-18

申请号：US13828239

申请日：2013-03-14

Applicant: PGS GEOPHYSICAL AS

Inventor： Ulf Peter Lindqvist ,  Andras Robert Juhasz ,  Rune Johan Magnus Mattsson ,  Lars Erik Magnus Bjornemo

IPC: G01V13/00 ,  G01V3/12

CPC classification number: G01V3/12 ,  G01V3/083 ,  G01V3/15

Abstract: Disclosed are methods and systems for suppression of noise in electromagnetic surveying that includes stacking two or more frames of electromagnetic data. An example embodiment discloses a method for suppressing swell-induced noise in an electromagnetic survey, comprising: measuring an electromagnetic field parameter at one or more positions to provide an electromagnetic signal, the electromagnetic signal comprising a swell-induced portion; and stacking two or more frames of the electromagnetic signal to provide a stacked signal in which the swell-induced portion is suppressed, wherein the swell-induced portion is out of phase between the two or more frames.

Abstract translation: 公开了用于抑制电磁勘测中的噪声的方法和系统，包括堆叠两个或更多个电磁数据帧。 一个示例性实施例公开了一种用于抑制电磁勘测中的膨胀引起的噪声的方法，包括：测量一个或多个位置处的电磁场参数以提供电磁信号，所述电磁信号包括溶胀诱发部分; 并且堆叠电磁信号的两个或更多个帧以提供其中抑制了溶胀诱发部分的堆叠信号，其中膨胀诱发部分在两个或更多个帧之间不相位。

公开(公告)号：US09798029B2

公开(公告)日：2017-10-24

申请号：US14708414

申请日：2015-05-11

Applicant: PGS Geophysical AS

Inventor： Andras Robert Juhasz ,  Gustav Göran Mattias Südow ,  Rune Johan Magnus Mattsson ,  Ulf Peter Lindqvist

IPC: G01V1/38 ,  G01V1/36 ,  G01V1/20

CPC classification number: G01V1/362 ,  G01V1/201 ,  G01V2001/204 ,  G01V2001/205 ,  G01V2210/1423 ,  G01V2210/32

Abstract: A sensor streamer stretch section. At least some of the example embodiments are methods including measuring at least one parameter related to noise while towing the sensor streamer through a body of water with a towing vessel, and adjusting at least one of a spring constant and a damping coefficient of a stretch section disposed proximate the sensor streamer such that the measured parameter is minimized.

公开(公告)号：US20150241585A1

公开(公告)日：2015-08-27

申请号：US14708414

申请日：2015-05-11

Applicant: PGS Geophysical AS

Inventor： Andras Robert Juhasz ,  Gustav Göran Mattias Südow ,  Rune Johan Magnus Mattsson ,  Ulf Peter Lindqvist

IPC: G01V1/36 ,  G01V1/20

CPC classification number: G01V1/362 ,  G01V1/201 ,  G01V2001/204 ,  G01V2001/205 ,  G01V2210/1423 ,  G01V2210/32

Abstract: A sensor streamer stretch section includes at least one spring. A means for coupling the spring at each end to at least one of a sensor streamer and a lead in cable is included. A cable is coupled at its ends to the means for coupling. The cable is capable of carrying at least one of electrical and optical signals. The cable is formed such that the cable undergoes substantially no axial strain when the shock cord is elongated. An adjustable damper is coupled between the means for coupling at each end of the stretch section.

Abstract translation: 传感器拖缆伸展部分包括至少一个弹簧。 包括用于将每个端部处的弹簧耦合到传感器拖缆和电缆中的引线中的至少一个的装置。 电缆在其端部连接到用于联接的装置。 电缆能够携带至少一个电信号和光信号。 电缆形成为使得当电击绳被拉长时，电缆基本上不经受轴向应变。 可调节阻尼器联接在用于在拉伸部分的每个端部处联接的装置。