公开(公告)号：US20140297190A1

公开(公告)日：2014-10-02

申请号：US14200223

申请日：2014-03-07

Applicant: CGG Services SA

Inventor： Julie SVAY ,  Yuan NI ,  Cheikh NIANG

IPC: G01V13/00 ,  G01V1/30

CPC classification number: G01V13/00 ,  G01V1/387

Abstract: Methods and systems for generating a stability indicator associated with source directivity between shots and based on a signature are described. The stability indicator is computed by comparing a reference directivity cube to a source directivity cube using a partitioned intensity uniformity (PIU) metric. In another aspect, the stability indicator can be normalized to produce a scalar stability indicator expressed in percentage.

Abstract translation: 描述了用于生成与射击之间的源方向性相关联并且基于签名的稳定性指示符的方法和系统。 通过使用分区强度均匀度（PIU）度量将参考方向性立方体与源方向立方体进行比较来计算稳定性指标。 在另一方面，稳定性指标可被归一化以产生以百分比表示的标量稳定指标。

公开(公告)号：US20140297189A1

公开(公告)日：2014-10-02

申请号：US14200185

申请日：2014-03-07

Applicant: CGG SERVICES SA

Inventor： Julie SVAY ,  Nicolas BOUSQUIE ,  Cheikh NIANG ,  Thomas MENSCH

IPC: G01V1/34

CPC classification number: G01V1/345 ,  G01V1/02 ,  G01V1/308 ,  G01V1/3861 ,  G01V2200/12 ,  G01V2210/127

Abstract: Methods and systems for generating multi-criteria shot indicators are described. The multi-criteria shot indicator values can be weighted and the weighting factors can themselves incorporate one or more sensitivity factors. In another aspect, the shot indicators are related to the 4D repeatability and/or the 3D stability of seismic features associated with individual shots or sets of shots. The multi-criteria shot indicators can be evaluated in real-time onboard a seismic vessel and included as part of an infill reshoot decision making/quality control process.

Abstract translation: 描述了用于生成多标准拍摄指示符的方法和系统。 多标准拍摄指标值可以加权，加权因子本身可以包含一个或多个灵敏度因素。 在另一方面，射击指示与4D重复性和/或与单独镜头或镜头组相关的地震特征的3D稳定性有关。 多标准射击指标可以实时地在地震船上进行评估，并作为填充重新决定/质量控制过程的一部分。

公开(公告)号：US20140034412A1

公开(公告)日：2014-02-06

申请号：US13923519

申请日：2013-06-21

Applicant: CGG Services SA

Inventor： Yuan NI ,  Risto SILIQI ,  Cheikh NIANG

IPC: G01V1/38

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。