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Patent Searching and Data


Title:
SEABED INSTALLATIONS
Document Type and Number:
WIPO Patent Application WO/2011/144902
Kind Code:
A3
Abstract:
There is described a method and apparatus for deploying and covering undersea seismic sensing cables to improve seismic coupling between the sensors of the cable and the seabed. The method comprises simultaneously deploying a submarine seismic cable (2) and a mat (4) in order to cover at least the sensor units (3) of the cable. The mat may be attached to the cable prior to laying the cable on the seabed, and is preferably simultaneously laid with the cable by unwinding the cable and mat from a drum (9). The mat may be continuous, or may be in discrete sections attached to the cable at spaced locations. The mat or mat sections may comprise a sediment- trapping formation such as a number of upstanding fronds (5) on their upper surfaces.

Inventors:
EISENHOWER FRANK L (GB)
LUFF RICHARD (GB)
JARVIES IAIN (GB)
Application Number:
PCT/GB2011/000764
Publication Date:
March 15, 2012
Filing Date:
May 19, 2011
Export Citation:
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Assignee:
STINGRAY GEOPHYSICAL LTD (GB)
EISENHOWER FRANK L (GB)
LUFF RICHARD (GB)
JARVIES IAIN (GB)
International Classes:
F16L1/12; G01V1/38
Foreign References:
US20060256661A12006-11-16
US4077222A1978-03-07
GB2345198A2000-06-28
EP0001161A11979-03-21
Attorney, Agent or Firm:
BERESFORD, Keith, Denis, Lewis (16 High Holborn, London WC1V 6BX, GB)
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