WO2003064803A3 - A riser connector - Google Patents

A riser connector Download PDF

Info

Publication number
WO2003064803A3
WO2003064803A3 PCT/NO2003/000030 NO0300030W WO03064803A3 WO 2003064803 A3 WO2003064803 A3 WO 2003064803A3 NO 0300030 W NO0300030 W NO 0300030W WO 03064803 A3 WO03064803 A3 WO 03064803A3
Authority
WO
WIPO (PCT)
Prior art keywords
actuators
flow
actuating
primary
gripping members
Prior art date
Application number
PCT/NO2003/000030
Other languages
French (fr)
Other versions
WO2003064803A2 (en
Inventor
Vidar Larsen
Jan Oddvar Andersen
Original Assignee
Smedvig Offshore As
Vidar Larsen
Jan Oddvar Andersen
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
Priority claimed from US10/060,343 external-priority patent/US6609572B1/en
Priority claimed from NO20020535A external-priority patent/NO318346B1/en
Application filed by Smedvig Offshore As, Vidar Larsen, Jan Oddvar Andersen filed Critical Smedvig Offshore As
Priority to AU2003202839A priority Critical patent/AU2003202839A1/en
Publication of WO2003064803A2 publication Critical patent/WO2003064803A2/en
Publication of WO2003064803A3 publication Critical patent/WO2003064803A3/en

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
    • 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

Abstract

A system for connecting and disconnecting a lower end of a marine riser (25) to and from a blow out preventer stack on a subsea wellhead comprises gripping members (26) for the marine riser and a lock element (27) for locking the gripping members (26). The system comprises first primary actuators (28), second primary actuators (29) and secondary actuators (30) for moving the lock element (27) to an unlock position, and hydraulic circuitry for actuating the actuators. The system further comprises a hydraulic backup unlock circuit (9, 11, 16) comprising a triple flow divider (8) for dividing fluid flow from a source (16) into one flow for actuating the first primary actuators (28), one flow for actuating the second primary actuators (29) and one flow for actuating the secondary actuators (30).
PCT/NO2003/000030 2002-02-01 2003-02-03 A riser connector WO2003064803A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003202839A AU2003202839A1 (en) 2002-02-01 2003-02-03 A riser connector

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/060,343 US6609572B1 (en) 2002-02-01 2002-02-01 Riser connector
NO20020535A NO318346B1 (en) 2002-02-01 2002-02-01 The riser connection
NO20020535 2002-02-01
US10/060,343 2002-02-01

Publications (2)

Publication Number Publication Date
WO2003064803A2 WO2003064803A2 (en) 2003-08-07
WO2003064803A3 true WO2003064803A3 (en) 2003-11-13

Family

ID=27667632

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2003/000030 WO2003064803A2 (en) 2002-02-01 2003-02-03 A riser connector

Country Status (2)

Country Link
AU (1) AU2003202839A1 (en)
WO (1) WO2003064803A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO333849B1 (en) * 2010-04-28 2013-09-30 Statoil Petroleum As Safety device and method for protecting the well barrier.
NO332448B1 (en) * 2010-05-21 2012-09-17 Statoil Petroleum As Mechanically resilient weak joint

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3675713A (en) * 1970-03-30 1972-07-11 Regan Forge & Eng Co Method and apparatus for separating subsea well conduit couplings from a remote floating vessel
US4647254A (en) * 1985-04-18 1987-03-03 Mobil Oil Corporation Marine riser structural core connector
US4708376A (en) * 1986-01-31 1987-11-24 Vetco Gray Inc. Hydraulic collet-type connector
GB2205370A (en) * 1987-05-21 1988-12-07 Nat Supply Co Pipe connectors
US4856594A (en) * 1988-08-26 1989-08-15 Vetco Gray Inc. Wellhead connector locking device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4721132A (en) 1987-02-04 1988-01-26 Hughes Tool Company Subsea flowline quick disconnect coupling
US5382056A (en) 1993-07-12 1995-01-17 Abb Vetco Gray Inc. Riser weak link
US6234252B1 (en) 1998-03-26 2001-05-22 Abb Vetco Gray Inc. External tieback connector and method for tying back riser to subsea wellhead

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3675713A (en) * 1970-03-30 1972-07-11 Regan Forge & Eng Co Method and apparatus for separating subsea well conduit couplings from a remote floating vessel
US4647254A (en) * 1985-04-18 1987-03-03 Mobil Oil Corporation Marine riser structural core connector
US4708376A (en) * 1986-01-31 1987-11-24 Vetco Gray Inc. Hydraulic collet-type connector
GB2205370A (en) * 1987-05-21 1988-12-07 Nat Supply Co Pipe connectors
US4856594A (en) * 1988-08-26 1989-08-15 Vetco Gray Inc. Wellhead connector locking device

Also Published As

Publication number Publication date
AU2003202839A1 (en) 2003-09-02
WO2003064803A2 (en) 2003-08-07

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