Verfahren und Vorrichtung zur dynamischen Steuerung von Verzögerungen in einer Pistolensteuerung

Details

Veröffentlichungs-Nr.

EP2693234

Aktenzeichen

EP13178792

Anmeldetag

31. Juli 2013

Veröffentlichung

15. November 2017

Rechtsraum

EP

IPC

G01V1/08G01V1/38

Abstract

A method controls a delay of an air-gun (310) in an aquatic seismic source (300) during an aquatic seismic survey. The method includes a step of receiving an attribute of the air-gun (310) during the aquatic seismic survey, wherein the attribute is indicative of an asynchronization time of the air-gun (310); a step of calculating, based on a time-delay algorithm that uses the attribute, the asynchronization time of the air-gun (310), wherein the asynchronization time is a time difference between (i) a desired time when the air-gun (310) is expected to fire and (ii) an actual time when the air-gun (310) actually fires; a step of determining whether the asynchronization time is smaller than a given time threshold; a step of instructing a controller (340) to (1) wait for a predetermined time before calculating again the asynchronization time of the air-gun (310) if the asynchronization time is smaller than the given time threshold, or (2) calculate an updated asynchronization time for the air-gun (310) 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 (360) of the air-gun (310) for adjusting a delay time for firing the air-gun (310).

Anmelder

Firma

CGG Services SA

Land

🇫🇷 Frankreich

Fachgebiete