GB2286414A - Bending stiffener - Google Patents

Bending stiffener

Info

Publication number
GB2286414A
GB2286414A GB9507190A GB9507190A GB2286414A GB 2286414 A GB2286414 A GB 2286414A GB 9507190 A GB9507190 A GB 9507190A GB 9507190 A GB9507190 A GB 9507190A GB 2286414 A GB2286414 A GB 2286414A
Authority
GB
United Kingdom
Prior art keywords
flange
bending stiffener
stiffener
bending
bore
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
Application number
GB9507190A
Other versions
GB9507190D0 (en
GB2286414B (en
Inventor
R Bjarne Kj
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VIKING MJONDALEN AS
Original Assignee
VIKING MJONDALEN AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by VIKING MJONDALEN AS filed Critical VIKING MJONDALEN AS
Publication of GB9507190D0 publication Critical patent/GB9507190D0/en
Publication of GB2286414A publication Critical patent/GB2286414A/en
Application granted granted Critical
Publication of GB2286414B publication Critical patent/GB2286414B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
    • 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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/007—Devices for relieving mechanical stress
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings

Abstract

Bending stiffener (1) intended for mounting to a receiving station, preferably an offshore platform, for guiding cables, flexible risers, umbilicals etc. through an internal axial bore (6) in the bending stiffener (1). The stiffener (1) comprises a termination end (14) for mounting to the receiving station, a circular flange (3) with an inner bore provided with an internal cylindrical insert (4) having an internal bore diameter equal to the bore (6) of the bending stiffener (1), a composition (7) of a rubber compound with an internal bore (6) and outer dimensions equal to the bending stiffener (1) is fastened to the end flange/insert (2, 4) and is formed in the longitudinal direction with a substantially conical outer taper toward the flexible end (13) of the bending stiffener (1). The composition (7) further including layers of axial reinforcement (8) connected with cross-cord layers (9) therebetween, reinforcement (11), and an outer protection layer (12) wrapped around the outer circumference of the bending stiffener (1). The flange (2) is formed with a number of radial openings (windows) (3) distributed around the flange (2). The axial reinforcement (8) runs from the flexible portion (13) of the bending stiffener (1) toward and through a radial opening (3) in the flange (2) and back toward the flexible portion (13) of the bending stiffener (1) through another radial opening (3) in the flange (2). <IMAGE>
GB9507190A 1992-10-08 1993-10-07 Bending stiffener Expired - Fee Related GB2286414B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO923919A NO176368C (en) 1992-10-08 1992-10-08 Bending-limiting device
PCT/NO1993/000150 WO1994009245A1 (en) 1992-10-08 1993-10-07 Bending stiffener

Publications (3)

Publication Number Publication Date
GB9507190D0 GB9507190D0 (en) 1995-05-31
GB2286414A true GB2286414A (en) 1995-08-16
GB2286414B GB2286414B (en) 1996-03-06

Family

ID=19895495

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9507190A Expired - Fee Related GB2286414B (en) 1992-10-08 1993-10-07 Bending stiffener

Country Status (4)

Country Link
AU (1) AU5287293A (en)
GB (1) GB2286414B (en)
NO (1) NO176368C (en)
WO (1) WO1994009245A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2317631A (en) * 1996-09-30 1998-04-01 Inst Francais Du Petrole Production riser incorporating tensioning means and stiffening means
US10053921B2 (en) 2014-05-23 2018-08-21 Ge Oil & Gas Uk Limited Contact pressure limitation

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741696B1 (en) * 1995-11-29 1998-01-02 Coflexip STRAINER FOR FLEXIBLE PIPING FOR USE IN THE MARINE ENVIRONMENT
FR2760813B1 (en) * 1997-03-14 1999-04-09 Coflexip DEVICE FOR CURVING A FLEXIBLE PIPE
ATE302384T1 (en) * 1999-07-23 2005-09-15 Nkt Flexibles Is ATTACHING REINFORCEMENT WIRES TO AN END SECTION OF A PIPE OR ROPE AND USE OF THE END SECTION
ATE478234T1 (en) 2006-06-16 2010-09-15 Seaproof Solutions As POLYMER MATRIX REINFORCED STIFFENING ELEMENT AND PRODUCTION METHOD THEREOF
US7469722B2 (en) 2006-12-19 2008-12-30 Norvald Berland Segmented bend stiffener
FR2930618B1 (en) * 2008-04-24 2013-01-18 Saipem Sa INERTIA TRANSITION DRIVING ELEMENT FOR RECOVERING RIGID UNDERWATER DRIVING
CN103982742A (en) * 2014-05-16 2014-08-13 大连理工大学 Marine flexible pipe cable anti-bending device based on spline
KR102233792B1 (en) 2015-07-03 2021-03-30 엔케이티 에이치브이 케이블스 게엠베하 A temporary load securing device for an armoured high voltage cable and a method for facilitating installation-related operations of an armoured high voltage cable
EP3306031B1 (en) 2016-10-05 2023-06-07 Nexans Fatigue life extender
AU2020264494A1 (en) * 2019-05-02 2021-11-25 Pmi Industries, Inc. Split segmented bend restrictor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1496896A (en) * 1975-12-05 1978-01-05 Roberts & Armstrong Ltd Flexible conduits
EP0051091A1 (en) * 1980-10-30 1982-05-12 Conoco Phillips Company Riser pipe assembly for use in production systems
NO155672B (en) * 1979-01-19 1987-01-26 Coflexip BUILDING RESTRICTIVE DEVICE WHICH MAY BE FITTED AT THE END OF A FLEXIBLE PIPE PIPE.
EP0296056A1 (en) * 1987-06-18 1988-12-21 Institut Français du Pétrole Element with varying stiffness used at the foot of a riser

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1496896A (en) * 1975-12-05 1978-01-05 Roberts & Armstrong Ltd Flexible conduits
NO155672B (en) * 1979-01-19 1987-01-26 Coflexip BUILDING RESTRICTIVE DEVICE WHICH MAY BE FITTED AT THE END OF A FLEXIBLE PIPE PIPE.
EP0051091A1 (en) * 1980-10-30 1982-05-12 Conoco Phillips Company Riser pipe assembly for use in production systems
EP0296056A1 (en) * 1987-06-18 1988-12-21 Institut Français du Pétrole Element with varying stiffness used at the foot of a riser

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2317631A (en) * 1996-09-30 1998-04-01 Inst Francais Du Petrole Production riser incorporating tensioning means and stiffening means
GB2317631B (en) * 1996-09-30 2001-02-21 Inst Francais Du Petrole Production riser fitted with an appropriate stiffener and an individual float
US10053921B2 (en) 2014-05-23 2018-08-21 Ge Oil & Gas Uk Limited Contact pressure limitation

Also Published As

Publication number Publication date
NO176368C (en) 1995-03-22
NO176368B (en) 1994-12-12
NO923919D0 (en) 1992-10-08
GB9507190D0 (en) 1995-05-31
AU5287293A (en) 1994-05-09
GB2286414B (en) 1996-03-06
WO1994009245A1 (en) 1994-04-28
NO923919L (en) 1994-04-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19981007