AU747792B2 - Use of sleeve joint to control moment in pipes - Google Patents
Use of sleeve joint to control moment in pipes Download PDFInfo
- Publication number
- AU747792B2 AU747792B2 AU59503/00A AU5950300A AU747792B2 AU 747792 B2 AU747792 B2 AU 747792B2 AU 59503/00 A AU59503/00 A AU 59503/00A AU 5950300 A AU5950300 A AU 5950300A AU 747792 B2 AU747792 B2 AU 747792B2
- Authority
- AU
- Australia
- Prior art keywords
- tube
- pipe
- sleeve joint
- offshore structure
- support structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
- E21B19/004—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling supporting a riser from a drilling or production platform
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
- E21B43/0107—Connecting of flow lines to offshore structures
-
- 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
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/025—Sealing the pipe being movable
Description
AUSTRALIA
Patents Act 1990 COMPLETE SPECIFICATION STANDARD PATENT Applicant: MENTOR SUBSEA TECHNOLOGY SERVICES, INC.
Invention Title: USE OF SLEEVE JOINT TO CONTROL MOMENT IN PIPES *r a a The following statement is a full description of this invention, including the best method of performing it known to me: -IA- CASE 6068 USE OF SLEEVE JOINT TO CONTROL MOMENT IN PIPES BACKGROUND OF THE INVENTION 1. Field of the Invention The invention is generally related to the production of hydrocarbons from subsea formations and more particularly to the support of risers and tendons used in such production.
2. General Background In the drilling and production of hydrocarbons offshore, the development of deep water operations includes the use of tendons and risers under tension that extend from the sea floor S to a surface structure that may be floating or fixed. The configurations of these pipes between the surface structure and the sea floor can be substantially vertical; at an angle, and/or curved.
The lower ends of the tendons and risers are connected to the sea floor by means of additional pipes or risers embedded in and grouted to the sea floor. They may be connected to some gravity base structure on the sea floor. The pipes may rest on the sea floor for some distance and be supported by some means or may continue to be a part of offshore pipeline. The upper ends of the tendons and risers pass through openings in a portion of the surface structure and may be supported vertically by some means located above or below the water surface.
Floating surface structures and fixed structures such as compliant towers are both subject to environmentally induced forces or motions that cause bending of the tendons and risers at the opening into the structure. The tendons and risers themselves are also subject to bending moments from currents and 2 waves even when used with rigid surface structures. The bending moments on the tendons and risers normally under tension result in fatigue and wear at the opening into the surface structure. These bending moments may also occur at the lower end of the riser at the sea floor.
The known art provides a number of different means to address the problem, but there is still need for improvement.
SUMMARY OF THE INVENTION According to one aspect of the present invention there is provided a sleeve joint for use with a pipe in an offshore structure wherein the pipe is subject to bending moments caused by wind, currents and wave action, the pipe having one end connectable to the sea floor and upper portion adapted to pass through a constraining opening in the offshore structure, the sleeve joint comprising a tube rigidly attached to a support structure on the offshore structure, with the tube diameter greater than the outer diameter of the pipe, wherein said tube is attached to the 20 support structure at one end of said tube.
The sleeve may be straight, curved, flared outwardly and a combination of both.
S.
An inner liner may be used at the free end of the sleeve to reduce frictional wear.
25 According to a further aspect of the invention there is provided a sleeve joint for use with a pipe in an offshore structure wherein the pipe is subject to bending moments caused by wind, currents, and wave action, the pipe having one end connectable to the sea floor and an 30 upper portion adapted to pass through a constraining opening in the offshore structure, the sleeve joint comprising a plurality of tubes placed concentrically within each other, the outermost tube rigidly attached to a support structure on the offshore structure, with the innermost tube'Qhaving an inner diameter greater than the outer diameter of the pipe, wherein the outermost tube is ,attached to the support structure at one end of the said H: \SueB\Keep\speci\P39565 SPEC.doc 20/03/02 2a outermost tube.
The preferred embodiments of the present invention are presented in the following description in conjunction with the accompanying drawings in which like parts are given like reference numerals, and wherein: Figure 1 is a side view of the invention; Figures 2 7 illustrate alternate embodiments of the invention.
o• o H:\SueB\Keep\speci\P39565.SPEC.doc 20/03/02 CASE 6068 -3- DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to the drawings, it is seen in Fig. 1 that the invention is generally indicated by the numeral 10. Sleeve joint 10 is comprised of a tube 12 that is rigidly attached to a support structure 14 that is part of a larger offshore structure, at the surface or at the seafloor, not shown. The tube 12 has an inner diameter that is larger than the outer diameter of a riser or tendon 16 and thus is sized to receive S the same or similar pipe 16. It should be understood that a riser is a term of art used in the oil industry to refer to a pipe used for certain purposes and that the riser may also be referred to as a pipe.
Fig. 1 illustrates the tube 12 attached to the support oe structure 14 at the upper end of the tube 12. However, it should be understood that the tube 12 may be attached to the support structure 14 at any position on the tube that is suitable to the situation and equipment. As an example, Fig. 2 illustrates the tube 12 attached to the support structure 14 near the mid-section of the tube 12.
As seen in Fig. 1, an inner liner 18 may be provided at the free end of the tube 12 to reduce frictional wear on the riser 16 and tube 12.
Fig. 3 illustrates an alternate embodiment where the tube 12 is curved to match the natural curve that a riser might assume after installation offshore.
Fig. 4 illustrates an alternate embodiment where the lower end of the tube 12 is provided with a conical end Fig. 5 illustrates an alternate embodiment where the lower CASE 6068 -4end of the tube 12 is provided with a flared end 22. The embodiments of both Fig. 4 and 5 will allow for movement of the riser 16 with minimal wear on the riser and tube.
Fig. 6 illustrates an alternate embodiment where no inner liner is used between the tube 12 and riser 16. Fig. 6 is illustrated in a horizontal position since the invention may also be used to support a riser in the horizontal position. This applies to the situation where the riser rests in a horizontal position on the sea floor or some other structure.
7 illustrates an alternate embodiment where the joint 0 is formed from a plurality of tubes 12 placed concentrically within each other.
The tube 12 may be of any length suitable for the integrity of the riser 16. The diameter and wall thickness of the tube 12 may be varied along the length of the tube 12. The tube 12 may S also be formed from a combination of straight and curved sections. Both the tube 12 and the riser 16 may be coated with any suitable coating to resist frictional wear.
0 The invention provides several advantages. Cost savings are realized as a result of the elimination of expensive stress joints or flex joints and, in some cases, additional receptacle structures. The riser system is more redundant because the joint is not an integral part of the riser. Design and fabrication of the sleeve joint 10 is simpler and more reliable than complicated joints and thus can be delivered more quickly.
The sleeve joint 10 provides for easier and less expensive offshore installations.
Because many varying and differing embodiments may be made CASE 6068 within the scope of the inventive concept herein taught and because many modifications may be made in the embodiment herein detailed in accordance with the descriptive requirement of the law, it is to be understood that the details herein are to be interpreted as illustrative and not in a limiting sense.
0.0": g e *e
Claims (7)
1. A sleeve joint for use with a pipe in an offshore structure wherein the pipe is subject to bending moments caused by wind, currents and wave action, the pipe having one end connectable to the sea floor and an upper portion adapted to pass through a constraining opening in the offshore structure, the sleeve joint comprising a tube rigidly attached to a support structure on the offshore structure, with the tube diameter greater than the outer diameter of the pipe, wherein said tube is attached to the support structure at one end of said tube.
2. The sleeve joint of claim 1, wherein said tube is provided with an inner liner between the pipe and said tube at the free end of said tube.
3. The sleeve joint of claim 1 or 2, wherein said tube is curved.
4. The sleeve joint of claim i, 2 or 3, wherein one end of said tube is flared outwardly.
A sleeve joint for use with a pipe in an 20 offshore structure wherein the pipe is subject to bending moments caused by wind, currents, and wave action, the pipe having one end connectable to the sea floor and an upper portion adapted to pass through a constraining opening in the offshore structure, the sleeve joint 25 comprising a plurality of tubes placed concentrically within each other, the outermost tube rigidly attached to a support structure on the offshore structure, with the innermost tube having an inner diameter greater than the outer diameter of the pipe, wherein the outermost tube is attached to the support structure at one end of the said outermost tube.
6. A sleeve joint for use with pipe in an offshore structure substantially as hereinbefore described with reference to Figures i, 3, 4, 5 and 6 of the accompanying drawings. H:\SueB\Keep\speci\P39565.SPEC.doc 20/03/02
-7 Dated this 22 d day of March 2002 MENTOR SUBSEA TECHNOLOGY SERVICES, INC. By their Patent Attorneys GRIFFITH HACK Fellows Institute of Patent and Trade Mark Attorneys of Australia H:\SueB\IKeep\speci\P39565.SPEC.doc 22/03/02
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39939999A | 1999-09-20 | 1999-09-20 | |
| US09/399399 | 1999-09-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU5950300A AU5950300A (en) | 2001-03-22 |
| AU747792B2 true AU747792B2 (en) | 2002-05-23 |
Family
ID=23579360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU59503/00A Expired AU747792B2 (en) | 1999-09-20 | 2000-09-20 | Use of sleeve joint to control moment in pipes |
Country Status (5)
| Country | Link |
|---|---|
| AU (1) | AU747792B2 (en) |
| BR (1) | BR0004341B1 (en) |
| GB (1) | GB2356229B (en) |
| ID (1) | ID27317A (en) |
| NO (1) | NO20004677L (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003279975A1 (en) * | 2002-10-21 | 2004-05-13 | Fmc Technologies, Inc. | Keel guide system |
| US7156039B2 (en) | 2002-10-21 | 2007-01-02 | Fmc Technologies, Inc. | Keel guide system |
| MY141064A (en) * | 2003-03-25 | 2010-02-25 | Shell Int Research | Water intake riser |
| US8474539B2 (en) | 2009-08-25 | 2013-07-02 | Technip France | Pull tube sleeve stress joint for floating offshore structure |
| US20140328631A1 (en) | 2013-05-01 | 2014-11-06 | Technip France | Pull tube stress joint for offshore platform |
| US9217300B1 (en) | 2014-11-21 | 2015-12-22 | Technip France | Subsea riser support and method for bridging escarpments |
| CN108999577B (en) * | 2018-10-24 | 2024-04-12 | 西南石油大学 | Variable-diameter double-layer pipe connecting device for solid-state fluidization exploitation of hydrate |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2355991A1 (en) * | 1972-04-07 | 1978-01-20 | Subsea Equipment Ass Ltd | CONNECTOR BETWEEN A SUBMARINE DRILLING HEAD AND A SUPPORTING SURFACE |
| US4208055A (en) * | 1977-09-21 | 1980-06-17 | A/S Akers Mek. Versted | Method and device for sealing the place of penetration of a pipeline in the wall of a submerged structure |
| GB2107810B (en) * | 1981-10-20 | 1985-03-06 | Shell Int Research | Sealing a gap around a conductor pipe in an offshore structure |
| US4633801A (en) * | 1985-05-09 | 1987-01-06 | Shell Oil Company | Stress reduction connection apparatus for cylindrical tethers |
| US4706757A (en) * | 1985-05-21 | 1987-11-17 | Amoco Corporation | Wellhead supported subsea templates and methods |
| FR2760813B1 (en) * | 1997-03-14 | 1999-04-09 | Coflexip | DEVICE FOR CURVING A FLEXIBLE PIPE |
-
2000
- 2000-09-19 NO NO20004677A patent/NO20004677L/en not_active Application Discontinuation
- 2000-09-19 GB GB0022977A patent/GB2356229B/en not_active Expired - Lifetime
- 2000-09-20 BR BR0004341A patent/BR0004341B1/en not_active IP Right Cessation
- 2000-09-20 AU AU59503/00A patent/AU747792B2/en not_active Expired
- 2000-09-20 ID IDP20000805A patent/ID27317A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR0004341B1 (en) | 2010-11-30 |
| BR0004341A (en) | 2001-07-24 |
| AU5950300A (en) | 2001-03-22 |
| GB2356229A (en) | 2001-05-16 |
| GB2356229B (en) | 2003-10-15 |
| ID27317A (en) | 2001-03-22 |
| GB0022977D0 (en) | 2000-11-01 |
| NO20004677L (en) | 2001-03-21 |
| NO20004677D0 (en) | 2000-09-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |