Title:
METHOD AND APPARATUS OF HOT TAPPING MULTIPLE COAXIAL OR NESTED STRINGS OF UNDERWATER PIPING AND/OR TUBING FOR OVERTURNED WELLS OR PLATFORMS
Document Type and Number:
WIPO Patent Application WO/2010/120516
Kind Code:
A3
Abstract:
A method and apparatus for tapping into a pressurized multiple strings of coaxially situated tubulars for wells and/or platforms which have overturned wherein the tapping occurs underwater via a diver or remotely operated vehicle. The assembly includes a tapping tool connectable to the tubular via a saddle connection and an adjustable tapping clamp with adjustable support/locking feet, compression plate with view ports, and angularly adjustable hot tapping system, along with a drill/saw system.
Inventors:
MCGRAW HARRY (US)
BLAND LESLIE M (US)
BLAND LESLIE M (US)
Application Number:
PCT/US2010/029389
Publication Date:
March 17, 2011
Filing Date:
March 31, 2010
Export Citation:
Assignee:
MCGRAW HARRY (US)
BLAND LESLIE M (US)
BLAND LESLIE M (US)
International Classes:
B23G1/22; B23G1/16; B23G1/18; B23G1/24; F16L1/12; F16L1/26
Domestic Patent References:
| WO2006041307A1 | 2006-04-20 | |||
| WO2008021792A1 | 2008-02-21 |
Foreign References:
| US4369845A | 1983-01-25 | |||
| US5217073A | 1993-06-08 |
Other References:
See also references of EP 2414124A4
Attorney, Agent or Firm:
NORTH, Brett, A. et al. (Smith Nehrbas & North, L.L.C.,3838 N. Causeway Blvd., Suite 329, Metairie LA, US)
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