Marine Seismic Surveying with Towed Components Below Water's Surface
AssigneeION Geophysical Corporation
InventorsCurt Schneider, Timothy A. Dudley
Life of this patent
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AssigneeION Geophysical Corporation
InventorsCurt Schneider, Timothy A. Dudley
Estimating the term…
A skeg mounts from the stern of a towing vessel and extends below the waterline. A channel in the skeg protects cables for steamers and a source (e.g., air gun array) of a seismic system deployed from the vessel. Tow points on the skeg lie below the water's surface and connect to towlines to support the steamers and the source. A floatation device supports the source and tows below the water's surface to avoid ice floes or other issues encountered at the water's surface. Seismic streamers have head floats supporting the streamers. Each of the floats has adjustable buoyancy preconfigured to counterbalance the weight in water of the towed component that the float supports. Acoustic signals from a transceiver at the vessel find locations of the towed components. A towed fish at a lower level than the towed components also uses acoustic signals with a transceiver to further refine the locations of the towed components.
A marine surveying vessel for towing seismic equipment with one or more cables, the vessel comprising:
A marine surveying vessel for towing seismic equipment with one or more cables, the vessel comprising:
A marine surveying vessel for towing seismic equipment with one or more cables, the vessel comprising:
Dependencies are inferred from the claim text.