Title:
DEVICE FOR PROTECTING A SUBSEA STRUCTURE AND METHODS RELATING TO SAME
Document Type and Number:
WIPO Patent Application WO/2010/042280
Kind Code:
A3
Abstract:
A device for protecting a subsea structure from damage due to impact from falling objects. The device includes a lower shell that can be positioned over the subsea structure on the sea bed. The lower shell has a non-articulating cross sectional shape that provides a conduit between the lower shell and the sea bed. An upper shell is fixed to an outer surface of the lower shell and has a cross sectional shape that provides a conduit between the outer surface of the lower shell and the upper shell. The upper shell is sized and configured to be disposed on the lower shell. The lower shell can include footings to providing bearing support on the sea bed or may be positioned on separate footings or foundation on the sea bed. Methods of making the device and using the device to protect subsea structures are also disclosed.
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Inventors:
MANIMALA YESUDAS J (US)
Application Number:
PCT/US2009/054930
Publication Date:
June 17, 2010
Filing Date:
August 25, 2009
Export Citation:
Assignee:
CHEVRON USA INC (US)
MANIMALA YESUDAS J (US)
MANIMALA YESUDAS J (US)
International Classes:
E21B43/01; F16L1/12; F16L55/00; F16L57/02; F16L57/06
Foreign References:
| US20040060693A1 | 2004-04-01 | |||
| US20040062612A1 | 2004-04-01 | |||
| US4793737A | 1988-12-27 | |||
| US20040156684A1 | 2004-08-12 | |||
| US4210208A | 1980-07-01 | |||
| US20050186033A1 | 2005-08-25 |
Attorney, Agent or Firm:
GALLO, Nicholas, F. et al. (Law DepartmentPost Office Box 600, San Ramon CA, US)
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