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US 8,998,535 B2Granted
Method and system of retriever systems for marine geophysical survey sensor streamers
AssigneePGS Geophysical AS
InventorsAndre Stenzel, Youlin Hu, Troy L. McKey, III
Life of this patent
Estimating the term…
Abstract
Retriever systems for marine geophysical survey sensor streamers. At least some of the illustrative embodiments are methods including attaching a retriever system to a sensor streamer by: wrapping a lifting bag assembly at least partially around the sensor streamer, the lifting bag assembly comprising a deflated lifting bag, a gas cylinder, and a depth trigger mechanism; and covering the lifting bag assembly with an outer cover.
Claims22
A method comprising:
- attaching a retriever system to a sensor streamer by
- wrapping a lifting bag assembly at least partially around the sensor streamer, the lifting bag assembly comprising a deflated lifting bag, a gas cylinder, and a depth trigger mechanism;
- and
- covering the lifting bag assembly with an outer cover.
1 more element
A system comprising:
- a lifting bag in a deflated state abutting an outer surface of a bag attachment location on a geophysical survey cable, the lifting bag defines a first edge that at least partially circumscribes an outer surface at the bag attachment location, and the lifting bag defines a second edge at least partially aligned with a central axis of the geophysical survey cable;
- a gas cylinder coupled to a depth trigger mechanism mechanically coupled to the lifting bag, the gas cylinder and depth trigger abutting the bag attachment location, and the gas cylinder and trigger mechanism not directly coupled to the bag attachment location;
- and
- an outer cover defining a length and outer surface, the outer cover circumscribing lifting bag, gas cylinder and depth trigger mechanism, and the bag attachment location.
1 more element
A method comprising:
- retrofitting a sensor streamer to include a retriever system by
- attaching a lifting bag assembly at least partially around the sensor streamer, the lifting bag assembly comprising a deflated lifting bag, a gas cylinder, and a depth trigger mechanism;
- and
- installing an outer cover over the lifting bag assembly.
1 more element
Dependencies are inferred from the claim text.