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US 9,025,417 B2Granted
Systems and methods for optimizing low frequency output from airgun source arrays
AssigneeWesternGeco L.L.C.
InventorsJon-Fredrik Hopperstad, Robert Laws
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Abstract
Systems and methods for optimizing low frequency output of marine sources are described. The marine source arrangements and associated methods disclosed herein seek to fully frequency lock bubbles emitted by airguns in close proximity to one another. In this manner, larger effective bubble volumes can be achieved, thus increasing low frequency output.
Claims13
A method for increasing low frequency output of a marine source array having a total source volume, comprising:
- deploying a plurality of airguns;
- and
- activating at least some of the airguns to generate an effective bubble volume of more than 2000 in3, the activating including activating at least some of the airguns in such a way that the effective bubble volume is at least one-third the size of the total source volume.
Dependencies are inferred from the claim text.