US20070029081A1 - Centralizer - Google Patents
Centralizer Download PDFInfo
- Publication number
- US20070029081A1 US20070029081A1 US11/460,430 US46043006A US2007029081A1 US 20070029081 A1 US20070029081 A1 US 20070029081A1 US 46043006 A US46043006 A US 46043006A US 2007029081 A1 US2007029081 A1 US 2007029081A1
- Authority
- US
- United States
- Prior art keywords
- centralizer
- connector portion
- tubular bodies
- tubular
- securing
- 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.)
- Abandoned
Links
Images
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/01—Risers
- E21B17/017—Bend restrictors for limiting stress on risers
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
-
- 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
- F16L1/123—Devices for the protection of pipes 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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
- F16L11/18—Articulated hoses, e.g. composed of a series of rings
-
- 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
- F16L35/00—Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices
-
- 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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
Definitions
- the present invention relates to centralizers and in particular, but not exclusively, to centralizers for use with underwater elongate members such as umbilicals, pipes, risers and the like.
- an elongate member such as a pipe or umbilical to a production platform, surface vessel or the like.
- This is conventionally achieved by passing the elongate member through a so-called “J-tube” which is a downwardly-projecting tube secured to the production platform, surface vessel or the like. The elongate member is then secured in position.
- the internal diameter of the J-tube is generally somewhat larger than the elongate member that passes through it.
- the J-tube is designed to be curved.
- the elongate member is generally of limited flexibility, it is not possible for it to follow the curve of the J-tube precisely and as a consequence it tends to contact the internal wall of the J-tube at a relatively small number of separated points rather than having a continuous contact with the J-tube.
- a centralizer for an elongate member comprising a plurality of tubular bodies each having a through passage, the tubular bodies being connected end-to-end to form a continuous passageway, each tubular body comprising connection means for connecting to an adjacent tubular body while permitting longitudinal and/or angular play between adjacent tubular bodies, and securing means for securing the centralizer with respect to an elongate tubular member through which the connected tubular bodies to pass.
- connection means comprises a female connector portion at one end and a male connector portion at the opposite end adapted to fit into the female connector portion of an adjacent tubular body.
- the female connector portion comprises a socket or recess having an aperture defined by an inturned peripheral lip.
- the male connector portion comprises a projecting rib whose outer diameter exceeds the inner diameter of the inturned peripheral lip.
- the longitudinal length of the socket or recess exceeds the longitudinal length of the projecting rib of the male connector portion.
- the internal diameter of the socket or recess exceeds the external diameter of the projecting rib of the male connector portion.
- each of the said tubular bodies comprises a plurality of portions and means for securing the portions together to form the tubular body.
- the portions of the tubular body are substantially identical.
- each of the tubular bodies comprises two parts.
- the centralizer comprises a plurality of substantially identical tubular bodies.
- the securing means comprises means for securing to one of the said tubular bodies.
- the securing means comprises a flange and means for attaching the flange to the tubular bodies.
- FIG. 1 is a side view of an embodiment of centralizer in accordance with the present invention.
- FIG. 2 is an end view of the centralizer illustrated in FIG. 1 ;
- FIGS. 3 a and 3 b are perspective views of a first one of the components, and of a portion of that component, respectively, of the centralizer of FIG. 1 ;
- FIGS. 4 a and 4 b are perspective views of another of the components, and of a portion of that component, respectively, of the centralizer of FIG. 1 ;
- FIG. 5 is a cross-sectional view of the centralizer of FIG. 1 , showing it installed on a curved J-tube.
- the centralizer 10 comprises a hollow elongate sheath 12 and a securing flange 14 .
- the hollow elongate sheath 12 comprises five identical interconnected tubular centralising sleeves 16 and an end sleeve 18 , all formed from a polyurethane elastomer.
- Each of the cylindrical sleeves 16 is generally cylindrical and is formed from two identical half-sleeves 16 a as illustrated in FIG. 3 , the two halves being secured together to form a tubular sleeve by means of six bolts 20 which pass through aligned apertures 22 in the sleeve halves, to define a cylindrical passage 23 .
- each cylindrical sleeve 16 is provided with a male connector portion in the form of an upstanding peripheral lip 24 , the opposite end being provided with a female connector portion formed by an internal peripheral annular recess 26 which is defined by an inturned overhanging peripheral lip 28 at the opposite end.
- the internal diameter of the peripheral recess 26 is slightly larger than the external diameter of the peripheral lip 24 at the opposite end and the longitudinal length of the lip 24 is slightly shorter than the longitudinal length of the peripheral recess 26 .
- the end face 30 of the sleeve adjacent to the peripheral lip is, in one embodiment, inclined towards the opposite end by approximately 1.5°, although this angle can be changed to suit the particular circumstances such as the required bend radius.
- peripheral lip 24 of each of the sleeves 16 can be received and retained in the internal peripheral recess 26 of another of the sleeves, but the relative dimensions of the peripheral rib and peripheral recess allow annular and longitudinal play of the two sleeves with respect to one another, as illustrated in FIG. 5 .
- the inner end of the end sleeve 18 is identical to the inner end of the sleeve portion 16 , in that it has an identical internal peripheral recess 26 .
- the outer end of the end sleeve 18 is shaped into a frusto-conical wall 29 and does not have an upstanding peripheral lip, in contrast to the other centralising sleeves 16 .
- the first sleeve 16 is fitted over a mounting flange 32 of the securing plate.
- the other centralising flanges 16 are then secured successively, with the peripheral rim 24 of each preceding centralising sleeve being received in the internal peripheral recess 26 of the next securing sleeve 16 .
- the end sleeve is secured to the outermost sleeve 16 , with the peripheral rim 24 of the final sleeve 16 being received in the internal peripheral recess 26 of the end sleeve 18 .
- the centralizer 10 is then attached to the securing flange of a J-tube 36 ( FIG. 5 ) by means of bolts passing through each of sixteen equally-spaced apertures 15 in the securing flange 14 , which are aligned with corresponding holes in the securing flange of the J-tube.
- a continuous through passage is formed by the cylindrical passages 23 of the sleeves 16 , 18 .
- Each sleeve 16 , 18 can pivot slightly with respect to the sleeve or sleeves to which it is connected.
- the passageway of the centralizer 10 changes direction stepwise gradually. As shown in FIG. 5 , this allows the centralizer to follow the contours of a curved J-tube 36 while providing a continuous centralized passageway through which a pipe, umbilical or other elongate member can pass.
- the sleeves can be made from a material different from that described, or from more than one material.
Abstract
A centralizer for a pipe or other elongate member is formed from a plurality of tubular bodies (16) each having a through passage (23) that is connected end-to-end to form a continuous passageway. Each of the tubular bodies (16) has a female connector portion (26) at one end and a male connector portion (24) at the opposite end that fits into the female connector portion (26) with longitudinal and/or angular play. The securing means in the form of a mounting flange (14) is also provided to fix the centralizer with respect to a J-tube through which the centralizer is to pass. The invention centralizes the elongate member in the J-tube and maintains the allowable minimum bending radius, whilst eliminating, or reducing to acceptable levels, the contact loads and abrasion on the elongate member.
Description
- This application claims priority of British Patent Application No. 05 16041.1, filed on Aug. 4, 2005, which is incorporated in its entirety by reference herein.
- 1. Field of the Invention
- The present invention relates to centralizers and in particular, but not exclusively, to centralizers for use with underwater elongate members such as umbilicals, pipes, risers and the like.
- 2. Background Art
- In sub-sea applications, particularly in the oil and gas production industry, it is often necessary to secure an elongate member such as a pipe or umbilical to a production platform, surface vessel or the like. This is conventionally achieved by passing the elongate member through a so-called “J-tube” which is a downwardly-projecting tube secured to the production platform, surface vessel or the like. The elongate member is then secured in position.
- The internal diameter of the J-tube is generally somewhat larger than the elongate member that passes through it. In some circumstances, the J-tube is designed to be curved. In such situations, since the elongate member is generally of limited flexibility, it is not possible for it to follow the curve of the J-tube precisely and as a consequence it tends to contact the internal wall of the J-tube at a relatively small number of separated points rather than having a continuous contact with the J-tube.
- This results in abrasion of the elongate member at the contact points, which will therefore require repair or replacement, which is a costly and time-consuming exercise.
- It is therefore an aim of the present invention to centralize the elongate member in the J-tube and maintain the allowable minimum bending radius, whilst eliminating, or reducing to acceptable levels, the contact loads and abrasion.
- In accordance with the present invention, there is provided a centralizer for an elongate member, comprising a plurality of tubular bodies each having a through passage, the tubular bodies being connected end-to-end to form a continuous passageway, each tubular body comprising connection means for connecting to an adjacent tubular body while permitting longitudinal and/or angular play between adjacent tubular bodies, and securing means for securing the centralizer with respect to an elongate tubular member through which the connected tubular bodies to pass.
- If such an arrangement is located in a curved J-tube, it centralizes the elongate member in the J-tube and maintains the allowable minimum bending radius. It also eliminates, or reduces to acceptable levels, the contact loads and abrasion of the elongate member.
- Preferably the connection means comprises a female connector portion at one end and a male connector portion at the opposite end adapted to fit into the female connector portion of an adjacent tubular body.
- In one embodiment the female connector portion comprises a socket or recess having an aperture defined by an inturned peripheral lip.
- Preferably, the male connector portion comprises a projecting rib whose outer diameter exceeds the inner diameter of the inturned peripheral lip.
- Preferably, the longitudinal length of the socket or recess exceeds the longitudinal length of the projecting rib of the male connector portion.
- Preferably, the internal diameter of the socket or recess exceeds the external diameter of the projecting rib of the male connector portion.
- Advantageously, each of the said tubular bodies comprises a plurality of portions and means for securing the portions together to form the tubular body.
- Preferably, the portions of the tubular body are substantially identical.
- In one embodiment, each of the tubular bodies comprises two parts.
- Preferably, the centralizer comprises a plurality of substantially identical tubular bodies.
- Preferably, the securing means comprises means for securing to one of the said tubular bodies.
- In one embodiment, the securing means comprises a flange and means for attaching the flange to the tubular bodies.
- By way of example only, a specific embodiment of the present invention will now be described, with reference to the accompanying drawings, in which:
-
FIG. 1 is a side view of an embodiment of centralizer in accordance with the present invention; -
FIG. 2 is an end view of the centralizer illustrated inFIG. 1 ; -
FIGS. 3 a and 3 b are perspective views of a first one of the components, and of a portion of that component, respectively, of the centralizer ofFIG. 1 ; -
FIGS. 4 a and 4 b are perspective views of another of the components, and of a portion of that component, respectively, of the centralizer ofFIG. 1 ; and -
FIG. 5 is a cross-sectional view of the centralizer ofFIG. 1 , showing it installed on a curved J-tube. - With reference to FIGS. 1 to 4, the
centralizer 10 comprises a hollowelongate sheath 12 and asecuring flange 14. In one embodiment, the hollowelongate sheath 12 comprises five identical interconnected tubularcentralising sleeves 16 and anend sleeve 18, all formed from a polyurethane elastomer. Each of thecylindrical sleeves 16 is generally cylindrical and is formed from two identical half-sleeves 16 a as illustrated inFIG. 3 , the two halves being secured together to form a tubular sleeve by means of sixbolts 20 which pass through alignedapertures 22 in the sleeve halves, to define acylindrical passage 23. - One end of each
cylindrical sleeve 16 is provided with a male connector portion in the form of an upstandingperipheral lip 24, the opposite end being provided with a female connector portion formed by an internal peripheralannular recess 26 which is defined by an inturned overhangingperipheral lip 28 at the opposite end. The internal diameter of theperipheral recess 26 is slightly larger than the external diameter of theperipheral lip 24 at the opposite end and the longitudinal length of thelip 24 is slightly shorter than the longitudinal length of theperipheral recess 26. In addition, theend face 30 of the sleeve adjacent to the peripheral lip is, in one embodiment, inclined towards the opposite end by approximately 1.5°, although this angle can be changed to suit the particular circumstances such as the required bend radius. - As a result, the
peripheral lip 24 of each of thesleeves 16 can be received and retained in the internalperipheral recess 26 of another of the sleeves, but the relative dimensions of the peripheral rib and peripheral recess allow annular and longitudinal play of the two sleeves with respect to one another, as illustrated inFIG. 5 . - The inner end of the
end sleeve 18 is identical to the inner end of thesleeve portion 16, in that it has an identical internalperipheral recess 26. However, the outer end of theend sleeve 18 is shaped into a frusto-conical wall 29 and does not have an upstanding peripheral lip, in contrast to the othercentralising sleeves 16. - In use, the
first sleeve 16 is fitted over amounting flange 32 of the securing plate. The other centralisingflanges 16 are then secured successively, with theperipheral rim 24 of each preceding centralising sleeve being received in the internalperipheral recess 26 of the nextsecuring sleeve 16. When all thesleeves 16 have been secured in position, the end sleeve is secured to theoutermost sleeve 16, with theperipheral rim 24 of thefinal sleeve 16 being received in the internalperipheral recess 26 of theend sleeve 18. Thecentralizer 10 is then attached to the securing flange of a J-tube 36 (FIG. 5 ) by means of bolts passing through each of sixteen equally-spacedapertures 15 in thesecuring flange 14, which are aligned with corresponding holes in the securing flange of the J-tube. - As best seen in
FIG. 5 , when the centralizing arrangement is assembled, a continuous through passage is formed by thecylindrical passages 23 of thesleeves sleeve centralizer 10 changes direction stepwise gradually. As shown inFIG. 5 , this allows the centralizer to follow the contours of a curved J-tube 36 while providing a continuous centralized passageway through which a pipe, umbilical or other elongate member can pass. - The invention is not restricted to the details of the foregoing embodiment. For example, the sleeves can be made from a material different from that described, or from more than one material.
- While embodiments of the invention have been illustrated and described, it is not intended that these embodiments illustrate and describe all possible forms of the invention. Rather, the words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the spirit and scope of the invention.
Claims (12)
1. A centralizer for an elongate member, comprising a plurality of tubular bodies each having a through passage, tubular bodies in the plurality being connected end-to-end to form a continuous passageway, each tubular body comprising connection means for connecting to an adjacent tubular body while permitting play between adjacent tubular bodies that is at least one of longitudinal and angular play, and securing means for securing the centralizer with respect to an elongate tubular member through which the connected tubular bodies pass.
2. A centralizer as claimed in claim 1 , wherein the connection means comprises a female connector portion at one end and a male connector portion at an opposite end of a tubular body, the connection means being adapted to fit into the female connector portion of an adjacent tubular body.
3. A centralizer as claimed in claim 2 , wherein the female connector portion comprises a recess having an aperture defined by an inturned peripheral lip.
4. A centralizer as claimed in claim 3 , wherein the male connector portion comprises a projecting rib whose outer diameter exceeds the inner diameter of the inturned peripheral lip.
5. A centralizer as claimed in claim 4 , wherein a longitudinal length of the recess exceeds a longitudinal length of the projecting rib of the male connector portion.
6. A centralizer as claimed in claim 4 , wherein an internal diameter of the recess exceeds an external diameter of the projecting rib of the male connector portion.
7. A centralizer as claimed in claim 1 , wherein each of the plurality of tubular bodies comprises a plurality of portions and means for securing the portions together to form the tubular body.
8. A centralizer as claimed in claim 7 , wherein the portions of a tubular body are substantially identical.
9. A centralizer as claimed in claim 1 , wherein each of the tubular bodies comprises two parts.
10. A centralizer as claimed in claim 1 , wherein the plurality of tubular bodies comprise substantially identical tubular bodies.
11. A centralizer as claimed in claim 1 , wherein the securing means comprises means for securing a flange to one of the tubular bodies.
12. A centralizer as claimed in claim 1 , wherein the securing means comprises a flange and means for attaching the flange to one of the plurality of tubular bodies.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0516041.1 | 2005-08-04 | ||
GB0516041A GB2428760A (en) | 2005-08-04 | 2005-08-04 | Articulated centraliser for elongate members |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070029081A1 true US20070029081A1 (en) | 2007-02-08 |
Family
ID=34984080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/460,430 Abandoned US20070029081A1 (en) | 2005-08-04 | 2006-07-27 | Centralizer |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070029081A1 (en) |
BR (1) | BRPI0603021A (en) |
GB (1) | GB2428760A (en) |
NO (1) | NO20063532L (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110308815A1 (en) * | 2009-03-06 | 2011-12-22 | Cameron International Corporation | Multi-pressure flange connection |
US20150114660A1 (en) * | 2009-03-06 | 2015-04-30 | Cameron International Corporation | Accumulator Manifold |
WO2015088991A1 (en) * | 2013-12-11 | 2015-06-18 | National Oilwell Varco, L.P. | Wellsite cable support assembly and method of use |
US9157293B2 (en) | 2010-05-06 | 2015-10-13 | Cameron International Corporation | Tunable floating seal insert |
US20160186893A1 (en) * | 2014-10-08 | 2016-06-30 | Pmi Industries, Inc. | Quick attachment assembly for weighing or bend limiter cable assemblies |
US20180209576A1 (en) * | 2017-01-25 | 2018-07-26 | Whitefield Plastics Corporation | Non-metallic vertebrae bend restrictor and vertebrae end piece |
US10443762B2 (en) | 2012-01-10 | 2019-10-15 | Lankhorst Engineered Products B.V. | Bend restriction element for restricting the bending range of a conduit |
US11072978B2 (en) * | 2017-09-04 | 2021-07-27 | Balmoral Comtec Limited | Bend restrictor |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201004687D0 (en) * | 2010-03-20 | 2010-05-05 | Expro Ax S Technology Ltd | Support apparatus for elongate member |
NO336854B1 (en) | 2011-03-21 | 2015-11-16 | Nexans | Modular bending struts |
GB201400374D0 (en) * | 2014-01-09 | 2014-02-26 | Trelleborg Offshore U K Ltd | Interface |
GB201614030D0 (en) * | 2016-08-16 | 2016-09-28 | Tekmar Energy Ltd | Bend restrictor segment and method of manufacture |
NO344807B1 (en) * | 2018-08-15 | 2020-05-04 | Compocean As | A bending restrictor module and system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2212153A (en) * | 1938-02-10 | 1940-08-20 | John F Eaton | Vibration dampener |
US3813477A (en) * | 1972-07-12 | 1974-05-28 | Consolidated Edison Co Of Ny I | Electric power cable apparatus for transmitting power from a floating structure |
US4647255A (en) * | 1984-01-09 | 1987-03-03 | Novacorp International Consulting Ltd. | Pipe bend restrictor |
US4854781A (en) * | 1987-06-18 | 1989-08-08 | Institut Francais Du Petrole | Variable rigidity element for transfer column foot |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5730554A (en) * | 1996-03-22 | 1998-03-24 | Abb Vetco Gray Inc. | Articulated riser protector |
GB0404349D0 (en) * | 2004-02-27 | 2004-03-31 | Crp Group Ltd | Bend stiffener |
-
2005
- 2005-08-04 GB GB0516041A patent/GB2428760A/en not_active Withdrawn
-
2006
- 2006-07-27 US US11/460,430 patent/US20070029081A1/en not_active Abandoned
- 2006-07-28 BR BRPI0603021-1A patent/BRPI0603021A/en not_active IP Right Cessation
- 2006-08-02 NO NO20063532A patent/NO20063532L/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2212153A (en) * | 1938-02-10 | 1940-08-20 | John F Eaton | Vibration dampener |
US3813477A (en) * | 1972-07-12 | 1974-05-28 | Consolidated Edison Co Of Ny I | Electric power cable apparatus for transmitting power from a floating structure |
US4647255A (en) * | 1984-01-09 | 1987-03-03 | Novacorp International Consulting Ltd. | Pipe bend restrictor |
US4854781A (en) * | 1987-06-18 | 1989-08-08 | Institut Francais Du Petrole | Variable rigidity element for transfer column foot |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110308815A1 (en) * | 2009-03-06 | 2011-12-22 | Cameron International Corporation | Multi-pressure flange connection |
US20150114660A1 (en) * | 2009-03-06 | 2015-04-30 | Cameron International Corporation | Accumulator Manifold |
US9644442B2 (en) * | 2009-03-06 | 2017-05-09 | Cameron International Corporation | Multi-pressure flange connection |
US9157293B2 (en) | 2010-05-06 | 2015-10-13 | Cameron International Corporation | Tunable floating seal insert |
US9644445B2 (en) | 2010-05-06 | 2017-05-09 | Cameron International Corporation | Tunable floating seal insert |
US10443762B2 (en) | 2012-01-10 | 2019-10-15 | Lankhorst Engineered Products B.V. | Bend restriction element for restricting the bending range of a conduit |
US9404319B2 (en) | 2013-12-11 | 2016-08-02 | National Oilwell Varco, L.P. | Wellsite cable support assembly and method of using same |
WO2015088991A1 (en) * | 2013-12-11 | 2015-06-18 | National Oilwell Varco, L.P. | Wellsite cable support assembly and method of use |
US20160186893A1 (en) * | 2014-10-08 | 2016-06-30 | Pmi Industries, Inc. | Quick attachment assembly for weighing or bend limiter cable assemblies |
US20180209576A1 (en) * | 2017-01-25 | 2018-07-26 | Whitefield Plastics Corporation | Non-metallic vertebrae bend restrictor and vertebrae end piece |
US10100965B2 (en) * | 2017-01-25 | 2018-10-16 | Whitefield Plastics Corporation | Non-metallic vertebrae bend restrictor and vertebrae end piece |
US20190017644A1 (en) * | 2017-01-25 | 2019-01-17 | Whitefield Plastics Corporation | Non-metallic vertebrae bend restrictor and vertebrae end piece |
US11072978B2 (en) * | 2017-09-04 | 2021-07-27 | Balmoral Comtec Limited | Bend restrictor |
Also Published As
Publication number | Publication date |
---|---|
GB2428760A (en) | 2007-02-07 |
NO20063532L (en) | 2007-02-05 |
BRPI0603021A (en) | 2007-03-20 |
GB0516041D0 (en) | 2005-09-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: TRELLEBORG CRP LTD, UNITED KINGDOM Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SHAW, JOHN STUART;REEL/FRAME:018374/0387 Effective date: 20060807 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |