Apparatus and method for generating a seismic source signal

Details Apparatus and method for generating a seismic source signal Apparatus and method for generating a seismic source signal

G - Physics

01

V

G01V 1/02 (2006.01) G01V 1/04 (2006.01) G01V 1/40 (2006.01)

Patent

CA 2646558

A seismic source signal generator includes a mass, a primary accumulator and a . secondary accumulator, the secondary accumulator having an internal volume smaller than an internal volume of the primary accumulator. A method for generating a signal using a seismic vibrator includes operating the seismic vibrator using hydraulic fluid, damping hydraulic pressure deviations in the hydraulic fluid using a first accumulator in hydraulic communication with the hydraulic fluid, and damping pressure deviations in the hydraulic fluid using a second accumulator in hydraulic communication with the hydraulic fluid, the second accumulator having an internal volume smaller than an internal volume of the first accumulator.

Un générateur de signaux de source sismique comprend une masse, un accumulateur primaire et un accumulateur secondaire, l'accumulateur secondaire ayant un volume interne plus petit qu'un volume interne de l'accumulateur primaire. Un procédé pour générer un signal en utilisant un vibrateur sismique comprend l'actionnement du vibrateur sismique en utilisant un fluide hydraulique, l'amortissement des écarts de pression hydraulique dans le fluide hydraulique en utilisant un premier accumulateur en communication hydraulique avec le fluide hydraulique, et l'amortissement des écarts de pression dans le fluide hydraulique en utilisant un deuxième accumulateur en communication hydraulique avec le fluide hydraulique, le deuxième accumulateur ayant un volume interne plus petit qu'un volume interne du premier accumulateur.

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