GB2418968A - Subsea coupling tails attachment to manifold plate - Google Patents
Subsea coupling tails attachment to manifold plate Download PDFInfo
- Publication number
- GB2418968A GB2418968A GB0525784A GB0525784A GB2418968A GB 2418968 A GB2418968 A GB 2418968A GB 0525784 A GB0525784 A GB 0525784A GB 0525784 A GB0525784 A GB 0525784A GB 2418968 A GB2418968 A GB 2418968A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tail
- manifold plate
- manifold
- plate
- coupling
- 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.)
- Granted
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 47
- 238000010168 coupling process Methods 0.000 title claims abstract description 47
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 47
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 230000000717 retained effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
- F16L37/008—Couplings of the quick-acting type for branching pipes; for joining pipes to walls
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
- E21B33/038—Connectors used on well heads, e.g. for connecting blow-out preventer and riser
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Joints Allowing Movement (AREA)
Abstract
An undersea hydraulic coupling has tails 18 on both male 14 and female members to allow insertion through and attachment to manifold plates 16. The tails are provided with positioning members formed as effectively rigid elastomeric rings 30 located in grooves or fins which, when the tail is inserted to a manifold plate bore, grip the bore walls to allow the coupling members to be held in a nominal position with respect to the plate, preventing galling and hose damage when the members are mated. The tail is retained in the bore by a retainer ring 50 and a snap ring 22. A radial space 26 is formed between the tail and bore with a similar axial space between the plate and retaining ring which is closed with another elastomeric positioning member 50. There may be a second snap ring groove on the tail.
Description
24 18968
UNDERSEA HYDRAULIC COUPLING FOR USE WITH MANIFOLD PLATES
This invention relates, in general, to hydraulic couplings, and specifically to hydraulic couplings used in undersea drilling and production applications. More particularly, the invention involves an alignment system designed to provide proper alignment when the male and/or female member of a hydraulic coupling is attached to a manifold plate.
Subsea hydraulic couplings are old in the art. The couplings generally consist of a male member and a female member with sealed fluid passage ways connecting there between. The female member generally is a cylindrical body with a relatively large diameter longitudinal bore at one end and a relatively small diameter longitudinal bore or tail at the other. The tail facilitates insertion through manifold plates, and connections to hydraulic lines, while the large bore seals, and slidingly engages, the male member of the coupling. The male member includes a cylindrical portion at one end having an outer diameter approximately equal to the diameter of the large bore in the female member of the coupling. The male member also includes a tail connection at its other end to facilitate insertion through a manifold plate, and connection to hydraulic lines. When the cylindrical portion of the male member is inserted into the large bore of the female member, according to various embodiments of the device, fluid flow is established between the male and female members.
Typically, both the female and male portion of the hydraulic coupling have each been fixedly attached to manifold plates. The manifold plates are brought together to mate the hydraulic coupling. Hydraulic lines are attached to the distal end of the female and male couplings on the opposite side of each manifold plate.
Generally in the past, the manifold plates and the associated hydraulic coupling portions have been arranged such that the coupling portion is in a vertical or near vertical position. Additionally, the coupling portions in prior art systems have been screwed into threads inside holes cut through the manifold plates. The process of threading the manifold plates requires precision machining and is expensive and time consuming. What is needed is a way to cut plain, unthreaded holes through the manifold plates to connect hydraulic coupling portions there through. However, when the manifold plates are positioned such that the hydraulic coupling portions extend from the manifold plate at a significantly non-vertical angle, unless the fit between the manifold plate and the hydraulic coupling is precision cut for an exact fit, the hydraulic coupling portion will misalign or sag. If that occurs, two adverse effects occur. First when the manifold plates containing the male and female members are brought together, because the couplings are not lined up properly, galling can occur reducing the ability to maintain pressurized fluid integrity. Second, when the hydraulic lines are connected to the distal ends of the male and female coupling portions, if the couplings are not perpendicular to the manifold plate it will cause the hydraulic line to bend or crimp. This can cause an early fail point in the hydraulic line.
What is needed is a hydraulic coupling that can be used in manifold plates having a smooth bore hole larger than the outer bore of the portion of the coupling to be inserted through the manifold plate, wherein the hydraulic coupling has an alignment system causing it to remain substantially perpendicular to the hydraulic plate no matter what position the hydraulic plate is in.
The present invention provides a tail on the non-coupling end of both a male and female member of a hydraulic coupling device. The tail is machined to fit through pre cut, holes in a manifold plate. The clearance between the outer diameter of the tail and the inner diameter of the hole in the manifold plate is such that the tail will fit easily through the hole. The tail has positioning members on its outer diameter that when inserted fully into the hole in the manifold the positioning members compress to an interference fit which will hold the coupling in a nominal, substantially perpendicular, position to the manifold plate. Additionally, the retaining ring that holds the tail in place in the hole in the manifold plate can also have a positioning member that compresses against the manifold plate opposite of the male or female end of the coupling to hold the coupling in a nominal position to the plate.
The following drawings form part of the present specification and are included to further demonstrate certain aspects of the present invention. The invention may be better understood by reference to one or more of these drawings in combination with the detailed description of specific embodiments presented herein.
FIG. 1 is a sectional view of a prior art configuration of a male and female portion of a hydraulic coupling each fixedly attached with a threaded connection to a manifold plate.
FIG. 2 is a sectional view of the male member of the coupling according to a first embodiment, with the tail of the male member inserted into a manifold plate.
FIG. 3 is a sectional view of the female member of the coupling according to the first embodiment, with the tail of the female member inserted into a manifold plate.
FIG. 4 is a sectional view of a male member of the coupling according to a second embodiment, with the tail of the male member inserted into a manifold plate.
FIG. 5 is a sectional view of a female member of the coupling according to the second embodiment, with the tail of the female member inserted into a manifold plate.
FIG.1 shows a prior art hydraulic coupling connection to manifold plates. As can be seen in FIG. 1, manifold plate 4 is fixedly connected to female member 6 through the threaded connection 12. Likewise, manifold plate 2 is fixedly connected to male member 8 through threaded connection 10. This prior art device is shown in more detail in U.S. Patent No. 6,202, 690. This prior art device has the disadvantage of having the expense of threading the inside of the holes in the manifold plates 2 and 4. The present invention solves this problem and provides additional flexibility in the connection between the coupling members and the hydraulic plates.
In FIG.2, a first embodiment of the undersea hydraulic coupling of the present invention is shown. FIG.2 shows the male member of the coupling and its attachment to a manifold plate. The manifold plate 16 can be any thickness, but preferred standard thicknesses are 32mm or 51 mm (1 4/ inch or 2 inch). The male member 14 of the hydraulic coupling is shown as having tail 18 which extends through manifold plate 16. Once the tail 18 is inserted through the manifold plate 16, it is held in place by retainer ring 20, which is held in locking position by snap ring 22 that fits into groove 24 that extends radially around the circumference of the tail 18. Of course, the retaining ring 20 could be threaded on or held in place through any number of alternatives that will be apparent to those of skill in the art. As can be seen in FIG.2, there is a radial space 26 between the body of the tail 18 and the inner bore of the hole in manifold plate 16. Preferably the radial space 26 will be in the range of 0.64 1.27mm (0.025-0.050 inches). As will be further seen, the retainer ring 20 is not in tight fit with manifold plate 16, leaving gap 28 as well. Gap 28 is also preferably in the range of 0.64 - 1.27mm (0.025-0.050 inches). Because of radial space 26 and gap 28, the male member 14 may shift so as not to be nominal (substantially perpendicular) to the manifold plate 16. This will be particularly true due to cantilevering when plate 16 is turned vertically so that male member 14 extends horizontally therefrom. The present embodiment prevents the tail 18 of the male member 14 from shifting, even when extending horizontally, through the use of substantially rigid positioning members 30 extending around the circumference of the tail 18 in grooves cut into the tail 18. The positioning members 30 are elastomeric o-rings. The o- rings 30 have enough rigidity to hold the male member 14 nominal to the manifold plate 16. The end of the tail 36 of female member 32 that extends through manifold plate 34 is used to connect to hydraulic lines.
The o-rings of this embodiment are one type of a substantially rigid positioning member. The o-rings are not for the purpose of sealing, and are not required to main seal integrity. As those of skill in the art will note, the o-rings 30 of this embodiment may be replaced with any element that provides enough give to allow the tail 18 to be inserted, but enough rigidity to hold the male member 14 nominal. Additionally, rather than having o-rings around the circumference of the tail 18, there could be fins that run longitudinally on the tail or any other suitable arrangement.
FIG. 3 shows the female member that mates with the male member of FIG. 2 and the tail structure of the female member that connects through its manifold plate.
The female member 32 connects through manifold plate 34. The manifold plate 34 can be any thickness, but preferred standard thicknesses are 32mm or 51 mm (1 it/ inch or 2 inch). The male member 32 of the hydraulic coupling is shown as having tail 36 which extends through manifold plate 34. Once the tail 36 is inserted through the manifold plate 34, it is held in place by retainer ring 38, which is held in locking position by snap ring 40 that fits into groove 42 that extends radially around the circumference of the tail 36. In FIG. 3, as there was in FIG. 2, there is a radial space 44 between the body of the tail 36 and the inner bore of the hole in manifold plate 34. Preferably the radial space 44 will be in the range of 0.64 - 1.27mm (0. 025-0.050 inches). As will be further seen, the retainer ring 38 is not in tight fit with manifold plate 34, leaving gap 46 as well. Preferably gap 46 is in the range of 0.64 - 1.27mm (0.025 - 0.050 inches).
Because of radial space 44 and gap 46, the female member 32 may shift in the manifold plate 34 so as not to be nominal (substantially perpendicular) to the plate.
The present embodiment prevents the tail 36 of the female member 32 from shifting, even when extending horizontally, through the use of substantially rigid positioning members 48 extending around the circumference of the tail 36 in grooves cut into the tail 36. The substantially rigid positioning members 48 are preferably elastomeric o rings that have enough rigidity to hold the female member 32 nominal to the manifold plate 34. The end of the tail 36 of female member 32 that extends through manifold plate 34 is used to connect to hydraulic lines.
FIG. 4 shows another embodiment of the present invention showing a male member of a hydraulic coupling attached to a hydraulic plate as shown in FIG. 2 with the addition of an additional substantially rigid positioning member associated with the retainer ring. In FIG. 4, components that are the same as FIG. 2 bear the same component number as those of FIG. 2. In FIG. 4, in addition to wrings 30 that help hold the male member 14 in a nominal relationship with hydraulic plate 16, a modified retainer ring 50 is used. The modified retainer ring 50 has a groove cut into the radial face that engages with the manifold plate 16. Another substantially rigid positioning member 52, preferably an o-ring, is inserted in the groove in the modified retainer ring 50. The o-ring 52 is in contact with the modified retainer ring 50 and the manifold plate 16 so as to further resist cantilevering of the male member 14.
As shown in Figs. 2-4, the manifold plates are shown as having a 32 mm(1 'Gil inch) thickness. The tail 18 of the male member 14 of FIG. 4 could be extended an additional 25 - 32mm (1 -1'/ inches). An additional groove 24 could be cut around the circumference of the tail an additional 19mm (3/4 inches) out on the tail 18 so that the tail 18 will be capable of being attached to a 32mm or 51mm (1 '/ inch or 2 inch) manifold plate 16 without further modification. For attachment to the thicker manifold plate, the modified retainer ring 50 would simply be held in place by a snap ring in the new groove 19mm (3/d inches) further out on the tail 18. This modification could be made to the tail shown in each of the embodiments.
FIG. 5 shows the female member of FIG. 3 with the modified retainer ring of FiG.4. All like numbered components in FIG. 5 are the same as the component in FIG.3 and FIG.4. The tail could be extended for thicker hydraulic plates as described above as well.
Those of skill in the art will understand that portions of each of these embodiments may be combined or eliminated to create substantially equivalent embodiments to meet the objectives of the present invention to prevent cantilevering of hydraulic coupling components attached to hydraulic plates with fixed attachment such as with a threaded connection.
Claims (2)
1. An undersea hydraulic coupling member comprising: (a) a tail; (b) at least one positioning member associated with the tail, wherein the positioning member is arranged to be in contact with the inner bore of a manifold plate when the tail is inserted through the manifold plate; and (c) a retainer ring with an elastomeric positioning member associated with the face of the retainer ring that Is arranged to engage, in use, with the manifold plate.
2. The undersea hydraulic coupling member of claim 1, wherein the positioning members are o-rings.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/679,908 US20050072573A1 (en) | 2003-10-06 | 2003-10-06 | Undersea hydraulic coupling for use with manifold plates |
GB0421629A GB2407139B (en) | 2003-10-06 | 2004-09-29 | Undersea hydraulic coupling for use with manifold plates |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0525784D0 GB0525784D0 (en) | 2006-01-25 |
GB2418968A true GB2418968A (en) | 2006-04-12 |
GB2418968B GB2418968B (en) | 2006-06-14 |
Family
ID=33418874
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0525784A Expired - Fee Related GB2418968B (en) | 2003-10-06 | 2004-09-29 | Undersea hydraulic coupling for use with manifold plates |
GB0421629A Expired - Fee Related GB2407139B (en) | 2003-10-06 | 2004-09-29 | Undersea hydraulic coupling for use with manifold plates |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0421629A Expired - Fee Related GB2407139B (en) | 2003-10-06 | 2004-09-29 | Undersea hydraulic coupling for use with manifold plates |
Country Status (5)
Country | Link |
---|---|
US (1) | US20050072573A1 (en) |
BR (1) | BRPI0404354B1 (en) |
DE (1) | DE102004047387B4 (en) |
GB (2) | GB2418968B (en) |
NO (1) | NO341459B1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8322429B2 (en) * | 2008-05-29 | 2012-12-04 | Hydril Usa Manufacturing Llc | Interchangeable subsea wellhead devices and methods |
US8122964B2 (en) * | 2008-05-29 | 2012-02-28 | Hydril Usa Manufacturing Llc | Subsea stack alignment method |
US8127852B2 (en) * | 2008-12-23 | 2012-03-06 | Hydril Usa Manufacturing Llc | Interchangeable subsea wellhead devices and methods |
US20110101675A1 (en) * | 2009-11-04 | 2011-05-05 | National Coupling Compay, Inc. | Hydraulic Coupling Member with Dual Electrical Bonding Contacts |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4943187A (en) * | 1987-05-21 | 1990-07-24 | British Petroleum Co. P.L.C. | ROV intervention on subsea equipment |
US6283444B1 (en) * | 2000-06-29 | 2001-09-04 | National Coupling Company, Inc. | Undersea hydraulic coupling member |
GB2387631A (en) * | 2002-03-08 | 2003-10-22 | Nat Coupling Co Inc | An undersea hydraulic coupling with a poppet valve arrangement |
Family Cites Families (26)
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US2087418A (en) * | 1933-12-27 | 1937-07-20 | New York Air Brake Co | Pressure gauge |
US3527480A (en) * | 1969-03-17 | 1970-09-08 | Harnischfeger Corp | Multiple fluid coupling connection mechanism |
US3791411A (en) * | 1972-08-18 | 1974-02-12 | B Bogeskov | Hydraulic coupler |
US3929356A (en) * | 1974-11-13 | 1975-12-30 | Gen Motors Corp | Tube to block mounting assembly |
DE2542284C3 (en) * | 1975-09-23 | 1981-06-11 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Multiple plug coupling |
FR2350496A1 (en) * | 1976-05-03 | 1977-12-02 | Matra Engins | AUTOMATIC CONNECTOR AND APPLICATION OF THE DIT CONNECTOR TO SUBMARINE CONNECTION MODULES |
US4089549A (en) * | 1976-10-21 | 1978-05-16 | Stratoflex, Inc. | Simultaneous plural fluid conductor connections |
US4312524A (en) * | 1979-12-07 | 1982-01-26 | Aeroquip Corporation | Self-aligning coupling |
US4426104A (en) * | 1981-10-21 | 1984-01-17 | Nl Industries, Inc. | Underwater connector apparatus |
US4439068A (en) * | 1982-09-23 | 1984-03-27 | Armco Inc. | Releasable guide post mount and method for recovering guide posts by remote operations |
NL8500857A (en) * | 1985-03-22 | 1986-10-16 | Marcon Ingbureau | APPARATUS FOR COUPLING AND DISENGAGING HOSES OR TUBES FROM DIFFICULT ACCESSIBLE CONSTRUCTIONS. |
US4637470A (en) * | 1985-06-19 | 1987-01-20 | Hughes Tool Company | Subsea hydraulic coupling |
US4694859A (en) * | 1985-11-25 | 1987-09-22 | National Coupling Company, Inc. | Undersea hydraulic coupling and metal seal |
US4754780A (en) * | 1987-02-10 | 1988-07-05 | Smith Iii Robert E | Pressure balanced hydraulic coupling |
US4754813A (en) * | 1987-03-27 | 1988-07-05 | Vetco Gray Inc | Tree capless cone seal manifold |
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US4915419A (en) * | 1988-10-28 | 1990-04-10 | National Coupling Company, Inc. | Sliding lock plate for hydraulic connectors |
US5015016A (en) * | 1989-04-03 | 1991-05-14 | National Coupling Company, Inc. | Internal pressure loaded V-seal connector |
US5333691A (en) * | 1993-05-25 | 1994-08-02 | Bhp Petroleum Pty Ltd. | ROV installable junction plate and method |
US5325890A (en) * | 1993-07-15 | 1994-07-05 | Snap-Tite, Inc. | Sanitary coupling |
EP1010932A2 (en) * | 1998-12-14 | 2000-06-21 | SCITEX DIGITAL PRINTING, Inc. | Quick-coupling with built in check valves |
US6202690B1 (en) * | 2000-05-03 | 2001-03-20 | National Coupling Company, Inc. | Pressure balanced undersea hydraulic coupling |
US6227245B1 (en) * | 2000-09-28 | 2001-05-08 | National Coupling Company Inc. | Undersea hydraulic coupling with internal guard for flow port |
US6511043B2 (en) * | 2001-06-29 | 2003-01-28 | National Coupling Company, Inc. | Female coupling member with recessed flow passages |
US6516831B1 (en) * | 2002-03-08 | 2003-02-11 | National Coupling Company, Inc. | Undersea hydraulic coupling with radial seals on probe |
-
2003
- 2003-10-06 US US10/679,908 patent/US20050072573A1/en not_active Abandoned
-
2004
- 2004-09-29 DE DE102004047387A patent/DE102004047387B4/en not_active Expired - Fee Related
- 2004-09-29 GB GB0525784A patent/GB2418968B/en not_active Expired - Fee Related
- 2004-09-29 GB GB0421629A patent/GB2407139B/en not_active Expired - Fee Related
- 2004-10-05 NO NO20044225A patent/NO341459B1/en not_active IP Right Cessation
- 2004-10-05 BR BRPI0404354A patent/BRPI0404354B1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4943187A (en) * | 1987-05-21 | 1990-07-24 | British Petroleum Co. P.L.C. | ROV intervention on subsea equipment |
US6283444B1 (en) * | 2000-06-29 | 2001-09-04 | National Coupling Company, Inc. | Undersea hydraulic coupling member |
GB2387631A (en) * | 2002-03-08 | 2003-10-22 | Nat Coupling Co Inc | An undersea hydraulic coupling with a poppet valve arrangement |
Also Published As
Publication number | Publication date |
---|---|
BRPI0404354B1 (en) | 2016-03-15 |
DE102004047387A1 (en) | 2005-05-19 |
GB0421629D0 (en) | 2004-10-27 |
BRPI0404354A (en) | 2005-05-24 |
GB2418968B (en) | 2006-06-14 |
NO20044225L (en) | 2005-04-07 |
DE102004047387B4 (en) | 2007-01-25 |
GB0525784D0 (en) | 2006-01-25 |
GB2407139A (en) | 2005-04-20 |
US20050072573A1 (en) | 2005-04-07 |
GB2407139B (en) | 2006-03-08 |
NO341459B1 (en) | 2017-11-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20190929 |