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。