Underwater node for seismic surveys and method
AssigneeCggveritas Services SA
InventorPeter MAXWELL
Life of this patent
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Abstract
A method, system and a marine node for recording seismic waves underwater. The node includes a first module configured to house a seismic sensor; bottom and top plates attached to the first module; a second module removably attached to the first module and configured to slide between the bottom and top plates, the second module including a first battery and a data storage device; and a third module removably attached to the first module and configured to slide between the bottom and top plates, the third module including a second battery.
Claims20
A marine node for recording seismic waves underwater, the node comprising:
- a first module configured to house a seismic sensor, wherein the seismic sensor detects the seismic waves;
- bottom and top plates attached to the first module;
- a second module removably attached to the first module and configured to slide between the bottom and top plates, the second module including a first battery and a first data storage device;
- and
- a third module removably attached to the first module and configured to slide between the bottom and top plates, the third module including a second battery.
A marine node for recording seismic waves underwater, the node comprising:
- a chassis;
- bottom and top plates attached to the chassis;
- a first module configured to slide between the top and bottom plates to removably attach to the chassis and configured to house a seismic sensor, wherein the seismic sensor detects the seismic waves;
- and
- a second module configured to slide between the top and bottom plates to removably attach to the chassis and configured to house a battery,
- wherein the battery provides electrical power to the seismic sensor.
A method for seismically surveying a subsurface, the method comprising:
- placing a node on the ocean bottom, the node including a first module configured to house a seismic sensor, bottom and top plates attached to the first module, a second module removably attached to the first module and configured to slide between the bottom and top plates, the second module including a first battery and a data storage device, and a third module removably attached to the first module and configured to slide between the bottom and top plates, the third module including a second battery;
- recording seismic data with the seismic sensor;
- storing the seismic data in the data storage device;
- and
- retrieving the node from water;
- replacing the first and second modules with corresponding modules having their batteries charged;
- and
- redeploying the node for further seismic data acquisition.
Dependencies are inferred from the claim text.