System and method for using an impact-activated device for repelling sharks from marine geophysical survey equipment
AssigneePGS Geophysical AS
InventorsBruce William Harrick, Andre Stenzel
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Abstract
Disclosed are methods and systems for using an impact-activated device for repelling sharks from marine geophysical survey equipment. An embodiment discloses a marine geophysical survey system, comprising: marine geophysical survey equipment configured to be located in a body of water when in operation; and an impact-activated device coupled to the marine geophysical equipment, wherein the impact-activated device comprises a circuit configured to release a shark repellent in response to a pre-determined impact on the impact-activated device.
Claims25
A marine geophysical survey system, comprising:
- marine geophysical survey equipment configured to be located in a body of water when in operation, wherein the marine geophysical survey equipment comprises a streamer;
- and
- an impact-activated device coupled to the marine geophysical survey equipment, wherein the impact-activated device comprises a circuit configured to release a shark repellent in response to a pre-determined impact on the impact-activated device that is equal to or exceeds a pre-determined g-force.
An impact-activated device for releasing a shark repellent, comprising:
- an impact-sensing circuit;
- and
- a circuit configured to release a shark repellent in response to a pre-determined impact detected by the impact-sensing circuit, wherein the circuit comprise:
- an impact-sensing circuit configured to discharge a voltage in response to an impact;
- a voltage comparator configured to compare a reference voltage and the voltage from the impact-sensing circuit, and wherein the voltage comparator has a comparator output with a connect condition when the voltage from the image-sensing circuit meets or exceeds the reference voltage;
- a voltage source;
- electrodes;
- and
- a device configured to couple the voltage source and the electrodes when the comparator output is in the connect condition.
A method for protecting marine geophysical survey equipment from shark bite, comprising:
- disposing the marine geophysical survey equipment comprising a streamer in a body of water, wherein an impact-activated device is coupled to the marine geophysical survey equipment, wherein the impact-activated device comprises a circuit configured to release a shark repellent in response to a pre-determined impact on the impact-activated device that is equal to or exceeds a pre-determined g-force.
Dependencies are inferred from the claim text.