Title:
CONNECTING CONDUITS FOR FLUIDS
Document Type and Number:
WIPO Patent Application WO2002039004
Kind Code:
A3
Abstract:
The disclosed method & apparatus are for forming a fluid connection or tap through the wall (1) of a pipeline, particularly intended for "for tapping" of subsea pipelines. The method comprises fitting a connecting piece (2) having a mounting surface which extends around the tap location (2g) and at least partially over the tap location (2n) and a connecting wall (2h) which surrounds the tap location to provide an opening (2k) adapted or subsequent connection of a conduit to complete a fluid connection. The connecting piece is bonded to the pipeline by friction stitch welding performed (4, 6) inside said opening. The material at the tap location is removed (AC indicates after cutting) to define an aperture and provide said fluid connection surrounded closely by the weld (6) between the connecting piece and the wall.
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| JP4371329 | Liquid branching device |
Inventors:
VENNEMANN OLAV (DE)
MEYER AXEL (DE)
DOS SANTOS JORGE F (DE)
MEYER AXEL (DE)
DOS SANTOS JORGE F (DE)
Application Number:
PCT/GB2001/004957
Publication Date:
October 24, 2002
Filing Date:
November 08, 2001
Export Citation:
Assignee:
STOLT OFFSHORE LTD (GB)
GEESTHACHT GKSS FORSCHUNG (DE)
VENNEMANN OLAV (DE)
MEYER AXEL (DE)
DOS SANTOS JORGE F (DE)
GEESTHACHT GKSS FORSCHUNG (DE)
VENNEMANN OLAV (DE)
MEYER AXEL (DE)
DOS SANTOS JORGE F (DE)
International Classes:
F16L41/06; (IPC1-7): F16L41/06
Domestic Patent References:
| WO1993004813A1 | 1993-03-18 |
Foreign References:
| FR2381230A1 | 1978-09-15 | |||
| US1872357A | 1932-08-16 | |||
| US3937245A | 1976-02-10 |
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