公开(公告)号：US10302789B2

公开(公告)日：2019-05-28

申请号：US15124484

申请日：2015-03-13

Applicant: CGG SERVICES SA

Inventor： Yuan Ni

IPC: G01V1/38 ,  G01V1/36

Abstract: In order to use near-field measurements to obtain signature of a signal penetrating seafloor in a shallow water surveyed area, the water-bottom reflections' effect is removed. The removal is performed by obtaining first a far-field initial estimate from stacked primary pulses in the near-field measurements, and then estimating water-bottom reflection portions for different depths using differences between the near-field measurements and the far-field initial estimate. The signature of the air-gun for each shot is then deblended from the near-field measurement for the shot using the one of the water-bottom reflection portions according to a water-bottom depth associated with the shot location.

公开(公告)号：US20160231445A1

公开(公告)日：2016-08-11

申请号：US14420138

申请日：2014-09-24

Applicant: CGG Services SA

Inventor： Thierry Payen ,  Yuan Ni

IPC: G01V1/38

CPC classification number: G01V1/38 ,  G01V1/006 ,  G01V2210/125 ,  G01V2210/50

Abstract: A system and method for reconstructing a far field signature with data fusion from near field, mid field, and surface field hydrophone recordings is disclosed. The method includes receiving a first trace from a first sensor (e.g., hydrophone) and a second trace from a second sensor located in a different field from the first sensor. The method also includes receiving position information for the first and second sensors. The method further includes reconstructing a far field signature of the seismic signal based on the first trace, the second trace, and the position information.

Abstract translation: 公开了一种用于利用近场，中场和表面场水听器记录的数据融合重建远场签名的系统和方法。 该方法包括从第一传感器（例如，水听器）接收第一迹线，以及从位于与第一传感器不同的场中的第二传感器接收第二迹线。 该方法还包括接收第一和第二传感器的位置信息。 该方法还包括基于第一轨迹，第二轨迹和位置信息重建地震信号的远场签名。

公开(公告)号：US09354345B2

公开(公告)日：2016-05-31

申请号：US13923519

申请日：2013-06-21

Applicant: CGG SERVICES SA

Inventor： Yuan Ni ,  Risto Siliqi ,  Cheikh Niang

IPC: G01V1/38 ,  G01V1/08

CPC classification number: G01V1/3808 ,  G01V1/08 ,  G01V2200/12

Abstract: A method controls a delay of an air-gun in an aquatic seismic source. The method includes a step of receiving an attribute of the air-gun during the aquatic seismic survey; a step of calculating, based on a time-delay algorithm that uses the attribute, the asynchronization time of the air-gun; a step of determining whether the asynchronization time is smaller than a given time threshold; a step of instructing a controller to (1) wait for a predetermined time before calculating again the asynchronization time of the air-gun if the asynchronization time is smaller than the given time threshold, or (2) calculate an updated asynchronization time for the air-gun based on the attribute if the asynchronization time is larger than the given time threshold; and a step of sending the updated asynchronization time to a gun controller of the air-gun for adjusting a delay time for firing the air-gun.

Abstract translation: 一种方法控制水中地震源的气枪的延迟。 该方法包括在水下地震勘测期间接收空军的属性的步骤; 基于使用该属性的时间延迟算法来计算气枪的异步时间的步骤; 确定所述异步时间是否小于给定时间阈值的步骤; 指示控制器的步骤（1）如果异步时间小于给定时间阈值，则等待预定时间再次计算出空气枪的异步时间，或者（2）计算更新的空气不同步时间 - 如果异步时间大于给定的时间阈值，则基于该属性; 以及将更新的不同步时间发送到气枪的枪控制器以调整用于点火的延迟时间的步骤。

公开(公告)号：US09915744B2

公开(公告)日：2018-03-13

申请号：US15123851

申请日：2015-03-12

Applicant: CGG SERVICES SA

Inventor： Yuan Ni

IPC: G01V1/38 ,  G01V1/36

CPC classification number: G01V1/36 ,  G01V1/3808 ,  G01V1/3861 ,  G01V2210/1293 ,  G01V2210/56

Abstract: Marine seismic sources for exploring formations under the seafloor using reflection seismology include ghost attenuators for reducing or eliminating ghost signals. Such a ghost attenuator is located in the water above an individual source element and 5 water surface and is configured to dissipate energy of up-going signals and/or to redirect the up-going signals.

公开(公告)号：US20170031044A1

公开(公告)日：2017-02-02

申请号：US15124484

申请日：2015-03-13

Applicant: CGG SERVICES SA

Inventor： Yuan Ni

IPC: G01V1/36 ,  G01V1/38

CPC classification number: G01V1/364 ,  G01V1/38 ,  G01V2210/1293 ,  G01V2210/56 ,  Y02A90/36

Abstract: In order to use near-field measurements to obtain signature of a signal penetrating seafloor in a shallow water surveyed area, the water-bottom reflections' effect is removed. The removal is performed by obtaining first a far-field initial estimate from stacked primary pulses in the near-field measurements, and then estimating water-bottom reflection portions for different depths using differences between the near-field measurements and the far-field initial estimate. The signature of the air-gun for each shot is then deblended from the near-field measurement for the shot using the one of the water-bottom reflection portions according to a water-bottom depth associated with the shot location.

Abstract translation: 为了在浅水测量区域中使用近场测量获得渗透海底信号的信号，水底反射的影响被消除。 通过在近场测量中首先从叠加的主脉冲获得远场初始估计，然后使用近场测量和远场初始估计之间的差异来估计不同深度的水底反射部分来执行去除 。 然后根据与拍摄位置相关联的水底深度，使用一个水底反射部分从射击的近场测量中去除每个镜头的气枪的签名。