Systems and Methods for Optimizing Low Frequency Output from Airgun Source Arrays
AssigneeSchlumberger Technology Corporation
InventorsJon-Fredrik Hopperstad, Robert Laws, John Richard Tulett
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Abstract
A technique provides a source design and method for increasing low frequency output of a marine source array. The approach comprises providing a plurality of airguns. At least some of the airguns are activated to generate an effective bubble energy. The effective bubble energy may be optimized through use, preparation and/or arrangement of the airguns.
Claims20
A system for increasing low frequency output of a marine source array, comprising:
- a plurality of airguns arranged such that the airguns are held by a framework in sufficiently close proximity to one another to generate an effective bubble energy of more than 4000·103 psi·in3 for at least some of the airguns.
A method for increasing low frequency output of a marine source array, comprising:
- providing a plurality of airguns;
- identifying a largest effective bubble energy for the marine source array;
- arranging at least some of the airguns in such a way that the largest effective bubble energy is substantially achieved upon activation of the airguns;
- and
- activating the airguns.
A method for increasing low frequency output of a marine source array, comprising:
- providing a plurality of airguns;
- arranging the airguns in close proximity to one another;
- optimizing an effective bubble energy of at least some of the plurality of airguns by achieving a selected ratio of the effective bubble energy and the total potential bubble energy;
- and
- activating the airguns to substantially frequency-lock the bubbles emitted by the airguns.
Dependencies are inferred from the claim text.