Seismic surveys with optical communication links
First Claim
1. A system to perform a seismic survey in a marine environment, comprising:
- a seismic data acquisition unit disposed on a seabed in the marine environment, the seismic data acquisition unit including a local pressure sensor, an optical transmitter and an optical receiver to determine one or more pressure values; and
an extraction vehicle including a reference pressure sensor, an optical transmitter, an optical receiver to establish an optical communications link with the seismic data acquisition unit and generate reference pressure data, and one or more processors to determine a distance between the extraction vehicle and the seismic data acquisition unit, the extraction vehicle to instruct the reference pressure sensor to obtain the reference pressure data based on the distance between the extraction vehicle and the seismic data acquisition unit and a threshold; and
at least one of the local pressure sensor and the one or more pressure values calibrated based on the reference pressure data generated by the extraction vehicle.
5 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods of performing a seismic survey in a marine environment are provided. The system includes a seismic data acquisition unit disposed on a seabed in the marine environment. The seismic data acquisition unit includes a local pressure sensor, an optical transmitter and an optical receiver to determine one or more pressure values. The system includes an extraction vehicle including a reference pressure sensor, an optical transmitter, and an optical receiver to establish an optical communications link with the seismic data acquisition unit, and generate reference pressure data. The system includes at least one of the local pressure sensor and the one or more pressure values calibrated based on the reference pressure data generated by the extraction vehicle.
184 Citations
17 Claims
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1. A system to perform a seismic survey in a marine environment, comprising:
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a seismic data acquisition unit disposed on a seabed in the marine environment, the seismic data acquisition unit including a local pressure sensor, an optical transmitter and an optical receiver to determine one or more pressure values; and an extraction vehicle including a reference pressure sensor, an optical transmitter, an optical receiver to establish an optical communications link with the seismic data acquisition unit and generate reference pressure data, and one or more processors to determine a distance between the extraction vehicle and the seismic data acquisition unit, the extraction vehicle to instruct the reference pressure sensor to obtain the reference pressure data based on the distance between the extraction vehicle and the seismic data acquisition unit and a threshold; and at least one of the local pressure sensor and the one or more pressure values calibrated based on the reference pressure data generated by the extraction vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of performing a seismic survey in a marine environment, comprising:
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deploying a seismic data acquisition unit on a seabed in the marine environment, the seismic data acquisition unit including a local pressure sensor, an optical transmitter and an optical receiver; establishing, by an extraction vehicle including a reference pressure sensor, an optical transmitter, and an optical receiver, an optical communications link with the seismic data acquisition unit; providing, by the extraction vehicle to the seismic data acquisition unit via the optical communication link, reference pressure data; calibrating, by one or more processors of the extraction vehicle based on the reference pressure data, the local pressure sensor or one or more pressure values measured by the local pressure sensor; determining, by one or more processors of the extraction vehicle, a distance between the extraction vehicle and the seismic data acquisition unit; and instructing, by the extraction vehicle, the reference pressure sensor to obtain the reference pressure data based on the distance between the extraction vehicle and the seismic data acquisition unit. - View Dependent Claims (16, 17)
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Specification