Attenuating out of band energy emitted from seismic sources
AssigneeWesternGeco L.L.C.
InventorsJon-Fredrik Hopperstad, Robert Laws, Julian Edward (Ed) Kragh
Life of this patent
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Abstract
A method for attenuating out of band energy emitted from a seismic source used in a marine seismic survey. The method includes disposing the seismic source in a body of water and releasing a gas into a volume of water surrounding the seismic source. The released gas may be configured such that it displaces the volume of water surrounding the seismic source at a rate less than 2.9×106 cubic-meters per cubic-second.
Claims15
A method for attenuating out of band energy emitted from a seismic source used in a marine seismic survey, comprising:
- disposing the seismic source in a body of water;
- and
- releasing a gas into a volume of water surrounding the seismic source, wherein the released gas displaces the volume of water at a rate less than 2.9×106 m3/s3.
A seismic source for marine seismic acquisition, comprising:
- a barrel;
- an igniter coupled to a base of the barrel;
- a mixture supply coupled to the base of the barrel, wherein the mixture supply provides a combustible mixture to the base of the barrel;
- and
- an actuator coupled to the igniter, wherein the actuator controls an ignition of the igniter, and wherein the ignition is configured to combust the combustible mixture such that the combusted combustible mixture displaces a volume of water surrounding the barrel at a rate less than 2.9×106 m3/s3.
Aseismic source for marine seismic acquisition, comprising:
- a housing having a compressed gas;
- one or more ports coupled to the housing, wherein the ports are configured to release the compressed gas into the body of water;
- and one or more radial pipes coupled to the one or more ports, wherein the radial pipes are configured to restrict the released compressed gas such that a flow of a volume of water surrounding the seismic source is at a rate less than 2.9×106 m3/s3.
Dependencies are inferred from the claim text.