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    SYSTEM AND METHOD OF MARINE GEOPHYSICAL SURVEYS WITH DISTRIBUTED SEISMIC SOURCES
    1.
    发明申请
    SYSTEM AND METHOD OF MARINE GEOPHYSICAL SURVEYS WITH DISTRIBUTED SEISMIC SOURCES 审中-公开

    公开(公告)号：US20170199292A1

    公开(公告)日：2017-07-13

    申请号：US15366641

    申请日：2016-12-01

    Applicant: PGS Geophysical AS

    Inventor： Rune Tønnessen ,  Mattias D. C. Oscarsson

    IPC: G01V1/38 ,  G01V1/04

    CPC classification number: G01V1/3808 ,  G01V1/04 ,  G01V1/3861

    Abstract: Marine geophysical surveys with distributed seismic sources. At least some of the example embodiments are methods including performing a marine geophysical survey by: towing a plurality of high-frequency sources spread along a width of an array of sensors, the high-frequency sources having a first source density with respect to the width; and towing a plurality of mid-frequency sources spread along the width, the mid-frequency sources have a second source density with respect to the width, the second source density lower than the first source density; and towing a low-frequency source along the width; activating the high-frequency, mid-frequency, and low-frequency sources.

    Method and System for Adjusting Vessel Turn Time with Tension Feedback
    3.
    发明申请
    Method and System for Adjusting Vessel Turn Time with Tension Feedback 有权
    用张力反馈调节船舶转弯时间的方法和系统

    公开(公告)号：US20160041282A1

    公开(公告)日：2016-02-11

    申请号：US14919243

    申请日：2015-10-21

    Applicant: PGS Geophysical AS

    Inventor： Jan Erik Stokkeland ,  Mattias Dan Christian Oscarsson ,  Rune Tønnessen

    IPC: G01V1/38

    CPC classification number: G01V1/3826 ,  G01V1/3808

    Abstract: Disclosed are methods and systems for using tension feedback from steerable deflectors. In one example, a method may comprise: towing sensors streamers in a body of water from a survey vessel, wherein each of the sensor streamers comprises geophysical sensors at spaced apart locations; towing steerable deflectors in the body of water from the survey vessel, wherein the steerable deflectors are used to provide a lateral component of force to the sensors streamers as the steerable deflectors are towed through the body of water; turning the survey vessel; measuring tension at the steerable deflectors during the step of turning the survey vessel; and in response to the step of measuring tension, determining at least one of a reduced vessel operating speed, an increased vessel operating speed, a reduced angle of attack for at least one of the steerable deflectors, an increased angle of attack for at least one of the steerable, an increased vessel turn radius, or a decreased vessel turn radius.

    Abstract translation: 公开了用于使用来自可导向偏转器的张力反馈的方法和系统。 在一个示例中，方法可以包括：将来自测量船的水体中的传感器拖缆牵引到其中，其中每个传感器拖缆在间隔开的位置处包括地球物理传感器; 在来自测量船的水体中牵引可转向偏转器，其中当可转向导流器被牵引穿过水体时，可转向导流器用于向传感器拖缆提供力的侧向分量; 调查船只; 在转动测量船的步骤期间测量可转向导流板的张力; 并且响应于测量张力的步骤，确定减少的血管操作速度，增加的血管操作速度，对于至少一个可导向偏转器的减小的迎角的至少一个，至少一个 的可转向，增加的船只转弯半径，或减少的船只转弯半径。

    System and method of marine geophysical surveys with distributed seismic sources
    5.
    发明授权
    System and method of marine geophysical surveys with distributed seismic sources 有权

    公开(公告)号：US10222499B2

    公开(公告)日：2019-03-05

    申请号：US15366641

    申请日：2016-12-01

    Applicant: PGS Geophysical AS

    Inventor： Rune Tønnessen ,  Mattias D. C. Oscarsson

    IPC: G01V1/38 ,  G01V1/04

    Abstract: Marine geophysical surveys with distributed seismic sources. At least some of the example embodiments are methods including performing a marine geophysical survey by: towing a plurality of high-frequency sources spread along a width of an array of sensors, the high-frequency sources having a first source density with respect to the width; and towing a plurality of mid-frequency sources spread along the width, the mid-frequency sources have a second source density with respect to the width, the second source density lower than the first source density; and towing a low-frequency source along the width; activating the high-frequency, mid-frequency, and low-frequency sources.

    Method and System for Adjusting Vessel Turn Time with Tension Feedback
    10.
    发明申请
    Method and System for Adjusting Vessel Turn Time with Tension Feedback 有权
    用张力反馈调节船舶转弯时间的方法和系统

    公开(公告)号：US20140233350A1

    公开(公告)日：2014-08-21

    申请号：US13773000

    申请日：2013-02-21

    Applicant: PGS GEOPHYSICAL AS

    Inventor： Jan Erik Stokkeland ,  Mattias Dan Christian Oscarsson ,  Rune Tønnessen

    IPC: G01V1/38

    CPC classification number: G01V1/3826 ,  G01V1/3808

    Abstract: Disclosed are methods and systems for using tension feedback from steerable deflectors to adjust vessel turn time. In one example, a maximum tension for a second steerable first towed on a first side of the survey vessel may be determined. A radius of a turn of the vessel at a preselected speed may further be selected such that the tension on the first steerable deflector is less than the maximum tension. The vessel may be turned while moving at the preselected speed, wherein the turning of the vessel has the selected radius. Tension may be measured on the first steerable deflector during the step of turning the vessel.

    Abstract translation: 公开了用于使用来自可导向偏转器的张力反馈来调节船只转弯时间的方法和系统。 在一个示例中，可以确定首先在测量船的第一侧上拖曳的第二可转向的最大张力。 可以进一步选择容器以预定速度的转弯的半径，使得第一可转向偏转器上的张力小于最大张力。 容器可以以预选速度移动而转动，其中容器的转动具有所选择的半径。 在转动容器的步骤期间，可以在第一导向导流板上测量张力。

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