WO1996027751A1 - Laying underwater pipeline - Google Patents
Laying underwater pipeline Download PDFInfo
- Publication number
- WO1996027751A1 WO1996027751A1 PCT/GB1996/000496 GB9600496W WO9627751A1 WO 1996027751 A1 WO1996027751 A1 WO 1996027751A1 GB 9600496 W GB9600496 W GB 9600496W WO 9627751 A1 WO9627751 A1 WO 9627751A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vessel
- pipe
- pipeline
- pipe sections
- connectors
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/03—Pipe-laying vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/62—Couplings of the quick-acting type pneumatically or hydraulically actuated
Definitions
- This invention relates to a method of laying an underwater pipeline, and to a vessel for carrying out the method.
- a method of laying an underwater pipeline comprises providing a plurality of pipe sections each having a mechanical connector at either end, loading the pipe sections on a floating vessel, and traversing the vessel along a desired line of lay while laying the pipeline overboard from the vessel, pipe sections being coupled into the pipeline one by one as it is laid by interlocking the mechanical connectors thereon on board the vessel.
- the pipe sections preferably have the connectors secured to their ends, for example by welding, before being loaded aboard the vessel; but the invention encompasses carrying out this step aboard the vessel.
- the pipeline is laid under tension applied by the vessel to establish a launch angle, and each section is elevated into the launch angle before being connected.
- the mechanical connectors are snap connectors, for example those supplied by Hunting Oilfield Services under the trade mark Hunting Merlin S.
- snap connectors is meant connectors which can be mated to form a fluid-tight joint without relative rotation of the pipe sections and without the use of separate applied fasteners such as nuts and bolts.
- the invention provides a vessel for laying an underwater pipeline, the vessel having pipe storage means for storing a plurality of pipe sections, means for launching a pipeline from the vessel, and means adjacent the launching means for interconnecting mechanical connectors previously secured to the ends of the pipe sections.
- the launching means preferably comprises a pipeline tensioner for applying tension to the pipeline and thereby establishing a launch angle.
- the vessel is provided with pipe elevating means for raising each succeeding pipe section into alignment with the launch angle.
- the pipe elevating means may comprise an elongated pipe support mounted on a pair of elevator towers.
- the pipe support may suitably be provided with driven rollers for moving the pipe section along its length.
- the vessel has a deck area having a storage rack for carrying pipe sections side by side, and the pipe support is movable between a lower position adjacent one side of the storage rack and an upper position aligned with the launch angle.
- Fig. 1 is a side elevation of a ship used in one example of the invention
- Fig. 2 is a plan view of the ship shown in Fig. 1;
- Fig. 3 is a longitudinal section in a radial plane of a snap connector
- Figs. 4, 5 and 6 are successive stages in the mating of a snap connector
- Figs. 7, 8 and 9 are successive stages in the de-mating of a snap connector.
- a ship 10 has a deck area 12 which is provided with storage racks 14 for storing and handling lengths of pipe or spools 16.
- the spools 16 are typically 20 to 30 metres in length. Each spool 16 is provided at its ends with connectors 18 and 20 as will be described in more detail below.
- the deck 12 carries an elevating pipe support 22 by means of elevator towers 24 and 26.
- the elevator towers 24 and 26 are provided with means such as cable hoists or hydraulic rams for moving the pipe support 22 between an elevated position shown in Fig. 1 and a lower position indicated in broken lines.
- the pipe support 22 In its lower position, the pipe support 22 is adjacent one edge of the storage rack 14 and horizontally aligned with the spools 16. This allows the adjacent spool 16 to be skidded sideways into the pipe support 22.
- the pipe support 22 is then elevated to the desired angle and the spool thereon is brought into abutment with the inboard end of the previous pipe section, which now forms the inboard end of a pipeline 28.
- the pipe support 22 is provided with a series of driven rollers (not shown) for moving the spool into such abutment.
- the connectors 18 and 20 are suitably male and female connectors of the product sold by Hunting Oilfield Services under the designation Hunting Merlin S, although other forms of snap connector may be used.
- the Hunting Merlin S connectors are joined by use of a oveable clamp device and applied fluid pressure, and these are provided in a make up station 30.
- the inboard end of the pipeline 28 passes through a holding station and tensioners of known kind indicated at 32.
- the holding station and tensioners 32 apply the required tension to the pipeline 28 while being laid and also the pipeline 28 to be held with respect to the vessel 10 while the connection is made.
- the vessel is also provided with a start up winch 34 and an abandonment and recovery winch 36 as is conventional in pipeline vessels.
- the pipe spools 16 will typically be formed ashore by welding together three or four lengths of standard pipe sections and welding the connectors 18 and 20 to the outer ends, together with any desired anti-corrosion or insulation treatments. Although described with reference to a self propelled ship, the invention may equally be used on board a barge or any other suitable floating vessel.
- FIG. 3 is a section through one side of a made-up snap connector 100 comprising a box 1 and a pin 2. Facing circumferential surfaces of the box 1 and pin 2 are formed with interengaging formations in the form of circumferential teeth 4. It is to be noted that the teeth 4 are purely circumferential and not helical, ie they can not be screwed together.
- seal rings can also be incorporated to augment sealing.
- Fig. 3 shows only the connector 10 and not the two pipes to which the box 1 and the pin 2 would be respectively connected by circumferential fusion welds (not illustrated) applied around the welding bevels 8.
- Fig. 4 shows the connector 100 in its initial stage of being made-up, with the pin 2 stabbed into the box 1 until the respective toothed formations 4 collide (being in an undistorted shape) .
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9605918A BR9605918A (en) | 1995-03-04 | 1996-03-04 | Method for laying a submarine oil pipeline and ship for laying a submarine oil pipeline |
GB9622960A GB2302718B (en) | 1995-03-04 | 1996-03-04 | Laying underwater pipeline |
AU48855/96A AU4885596A (en) | 1995-03-04 | 1996-03-04 | Laying underwater pipeline |
NO964653A NO964653D0 (en) | 1995-03-04 | 1996-11-04 | Method and vessel for laying a pipeline underwater |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9504385.7A GB9504385D0 (en) | 1995-03-04 | 1995-03-04 | Laying underwater pipeline |
GB9504385.7 | 1995-03-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996027751A1 true WO1996027751A1 (en) | 1996-09-12 |
Family
ID=10770662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1996/000496 WO1996027751A1 (en) | 1995-03-04 | 1996-03-04 | Laying underwater pipeline |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU4885596A (en) |
BR (1) | BR9605918A (en) |
GB (2) | GB9504385D0 (en) |
NO (1) | NO964653D0 (en) |
WO (1) | WO1996027751A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6554538B2 (en) | 2001-07-03 | 2003-04-29 | Torch Offshore, Inc. | Reel type pipeline laying ship and method |
US6702519B2 (en) | 2001-07-03 | 2004-03-09 | Torch Offshore, Inc. | Reel type pipeline laying ship and method |
US6733208B2 (en) | 2001-07-03 | 2004-05-11 | Torch Offshore, Inc. | Reel type pipeline laying ship and method |
US6761505B2 (en) | 2002-01-15 | 2004-07-13 | Torch Offshore, Inc. | Reel type pipeline laying ship and method |
WO2007000609A2 (en) * | 2005-06-29 | 2007-01-04 | Acergy Uk Limited | Pipe laying vessel and methods of operation thereof |
NL2003530C2 (en) * | 2009-09-23 | 2011-03-28 | Itrec Bv | Offshore vessel for laying a pipeline on the seabed, and a method for handling pipe sections. |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1475090A (en) * | 1922-06-19 | 1923-11-20 | Lynchburg Foundry Company | Flexible pipe joint |
GB1199360A (en) * | 1968-04-01 | 1970-07-22 | North American Rockwell | Variable Angle Lay-Barge |
US3585806A (en) * | 1969-08-25 | 1971-06-22 | Brown & Root | Apparatus for controlling pipeline laying operations |
US3911690A (en) * | 1974-07-26 | 1975-10-14 | Brown & Root | Offshore pipeline laying |
US4068490A (en) * | 1975-05-06 | 1978-01-17 | Compagnie Francaise Des Petroles | Method and apparatus for assembling and laying underwater pipeline |
US4124232A (en) * | 1977-05-04 | 1978-11-07 | Vetco, Inc. | Rigid pipe connector with lock elements and method of making the same |
GB2138089A (en) * | 1983-04-05 | 1984-10-17 | Hunting Oilfield Services | Pipe connectors |
WO1995031669A1 (en) * | 1994-05-13 | 1995-11-23 | Subsea Offshore Limited | A method of laying a pipeline |
-
1995
- 1995-03-04 GB GBGB9504385.7A patent/GB9504385D0/en active Pending
-
1996
- 1996-03-04 GB GB9622960A patent/GB2302718B/en not_active Expired - Lifetime
- 1996-03-04 WO PCT/GB1996/000496 patent/WO1996027751A1/en active Application Filing
- 1996-03-04 BR BR9605918A patent/BR9605918A/en not_active Application Discontinuation
- 1996-03-04 AU AU48855/96A patent/AU4885596A/en not_active Abandoned
- 1996-11-04 NO NO964653A patent/NO964653D0/en unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1475090A (en) * | 1922-06-19 | 1923-11-20 | Lynchburg Foundry Company | Flexible pipe joint |
GB1199360A (en) * | 1968-04-01 | 1970-07-22 | North American Rockwell | Variable Angle Lay-Barge |
US3585806A (en) * | 1969-08-25 | 1971-06-22 | Brown & Root | Apparatus for controlling pipeline laying operations |
US3911690A (en) * | 1974-07-26 | 1975-10-14 | Brown & Root | Offshore pipeline laying |
US4068490A (en) * | 1975-05-06 | 1978-01-17 | Compagnie Francaise Des Petroles | Method and apparatus for assembling and laying underwater pipeline |
US4124232A (en) * | 1977-05-04 | 1978-11-07 | Vetco, Inc. | Rigid pipe connector with lock elements and method of making the same |
GB2138089A (en) * | 1983-04-05 | 1984-10-17 | Hunting Oilfield Services | Pipe connectors |
WO1995031669A1 (en) * | 1994-05-13 | 1995-11-23 | Subsea Offshore Limited | A method of laying a pipeline |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6554538B2 (en) | 2001-07-03 | 2003-04-29 | Torch Offshore, Inc. | Reel type pipeline laying ship and method |
US6702519B2 (en) | 2001-07-03 | 2004-03-09 | Torch Offshore, Inc. | Reel type pipeline laying ship and method |
US6733208B2 (en) | 2001-07-03 | 2004-05-11 | Torch Offshore, Inc. | Reel type pipeline laying ship and method |
US7029206B2 (en) | 2001-07-03 | 2006-04-18 | Lyle Stockstill | Reel type pipeline laying ship and method |
US6761505B2 (en) | 2002-01-15 | 2004-07-13 | Torch Offshore, Inc. | Reel type pipeline laying ship and method |
WO2007000609A3 (en) * | 2005-06-29 | 2007-07-12 | Acergy Uk Ltd | Pipe laying vessel and methods of operation thereof |
WO2007000609A2 (en) * | 2005-06-29 | 2007-01-04 | Acergy Uk Limited | Pipe laying vessel and methods of operation thereof |
GB2441101A (en) * | 2005-06-29 | 2008-02-20 | Acergy Uk Ltd | Pipe laying vessel and methods of operation thereof |
GB2441101B (en) * | 2005-06-29 | 2010-04-07 | Acergy Uk Ltd | Pipe laying vessel and methods of operation thereof |
US7909538B2 (en) | 2005-06-29 | 2011-03-22 | Acergy Uk Limited | Pipe laying vessel and methods of operation thereof |
NL2003530C2 (en) * | 2009-09-23 | 2011-03-28 | Itrec Bv | Offshore vessel for laying a pipeline on the seabed, and a method for handling pipe sections. |
WO2011037459A1 (en) * | 2009-09-23 | 2011-03-31 | Itrec B.V. | Offshore vessel for laying a pipeline on the seabed, and a method for handling pipe sections |
CN102753432A (en) * | 2009-09-23 | 2012-10-24 | 伊特里克公司 | Offshore vessel for laying a pipeline on the seabed and method for handling a pipeline section |
US9056657B2 (en) | 2009-09-23 | 2015-06-16 | Itrec B.V. | Offshore vessel for laying a pipeline on the seabed, and a method for handling pipe sections |
Also Published As
Publication number | Publication date |
---|---|
GB9622960D0 (en) | 1997-01-08 |
NO964653D0 (en) | 1996-11-04 |
GB2302718A (en) | 1997-01-29 |
BR9605918A (en) | 1997-11-18 |
AU4885596A (en) | 1996-09-23 |
GB9504385D0 (en) | 1995-04-26 |
GB2302718B (en) | 1999-08-11 |
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