NO20082053L - Arrangement of flexible risers - Google Patents

Arrangement of flexible risers

Info

Publication number
NO20082053L
NO20082053L NO20082053A NO20082053A NO20082053L NO 20082053 L NO20082053 L NO 20082053L NO 20082053 A NO20082053 A NO 20082053A NO 20082053 A NO20082053 A NO 20082053A NO 20082053 L NO20082053 L NO 20082053L
Authority
NO
Norway
Prior art keywords
chain
seabed
riser
away
attached
Prior art date
Application number
NO20082053A
Other languages
Norwegian (no)
Inventor
Svein Loseth
Original Assignee
Statoilhydro Asa
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 Statoilhydro Asa filed Critical Statoilhydro Asa
Priority to NO20082053A priority Critical patent/NO20082053L/en
Priority to PCT/NO2009/000155 priority patent/WO2009139636A1/en
Publication of NO20082053L publication Critical patent/NO20082053L/en
Priority to DKPA201070078A priority patent/DK201070078A/en

Links

Classifications

    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • E21B17/015—Non-vertical risers, e.g. articulated or catenary-type

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

Anordning av fleksible stigerør, hvor hvert stigerør omfatter en øvre del som strekker seg som en kjedelinje ned og bort fra en posisjon ved en havoverflate, en mellomliggende del med et lengdeintervall med oppdriftsanordninger anordnet på eller til stigerøret slik at stigerøret i nevnte lengdeintervall får positiv oppdrift og den mellomliggende del inntar en konkav form rettet mot havbunnen, og en nedre del som strekker seg som en kjedelinje videre ned og bort fra posisjonen ved havoverflaten, til en havbunn, og en festeinnretning anordnet på hvert stigerør i en posisjon mellom havbunnen og nevnte lengdeintervall, særpreget ved at anordningen videre omfatter: en kjetting anordnet fra hver festeinnretning til havbunnen, idet en øvre ende av kjettingen er festet til festeinnretningen og en nedre ende av kjettingen er festet til et festepunkt anordnet på havbunnen, idet vekten av kjettingen er tilpasset slik at ved normal drift vil et antall kjettingledd være løftet fra havbunnen og et antall kjettingledd vil ligge på havbunnen, hvilket antall varierer i henhold til varierende belastning.A flexible riser device, each riser comprising an upper portion extending as a chain line down and away from a position at a sea surface, an intermediate portion having a length interval with buoyancy devices arranged on or to the riser so that the riser in said longitudinal interval receives positive buoyancy. and the intermediate portion assumes a concave shape directed toward the seabed, and a lower portion extending as a chain line further down and away from the position at the sea surface to a seabed, and a fastener arranged on each riser at a position between the seabed and said longitudinal interval. , characterized in that the device further comprises: a chain arranged from each attachment device to the seabed, an upper end of the chain being attached to the attachment device and a lower end of the chain being attached to an attachment point disposed on the seabed, the weight of the chain being adapted so that In normal operation, a number of chain links will be lifted from the sea the bottom and a number of chain links will lie on the seabed, which number varies according to varying load.

NO20082053A 2008-04-29 2008-04-29 Arrangement of flexible risers NO20082053L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO20082053A NO20082053L (en) 2008-04-29 2008-04-29 Arrangement of flexible risers
PCT/NO2009/000155 WO2009139636A1 (en) 2008-04-29 2009-04-24 Assembly of flexible riser systems
DKPA201070078A DK201070078A (en) 2008-04-29 2010-03-01 Installation of flexible riser systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20082053A NO20082053L (en) 2008-04-29 2008-04-29 Arrangement of flexible risers

Publications (1)

Publication Number Publication Date
NO20082053L true NO20082053L (en) 2009-10-30

Family

ID=41318878

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20082053A NO20082053L (en) 2008-04-29 2008-04-29 Arrangement of flexible risers

Country Status (3)

Country Link
DK (1) DK201070078A (en)
NO (1) NO20082053L (en)
WO (1) WO2009139636A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011150363A1 (en) * 2010-05-28 2011-12-01 Weatherford/Lamb, Inc. Deepwater completion installation and intervention system
EP2699754B1 (en) 2011-04-18 2018-03-14 Magma Global Limited Subsea conduit system
US9708864B2 (en) * 2014-12-22 2017-07-18 Ge Oil & Gas Uk Limited Riser assembly and method of forming a riser assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2627542A1 (en) * 1988-02-24 1989-08-25 Coflexip DEVICE FOR TRANSFERRING FLUID BETWEEN THE SUB-MARINE BOTTOM AND THE SURFACE
EP0407662B2 (en) * 1989-07-14 1999-06-23 Single Buoy Moorings Inc. Device for positioning of a buoy body
NO303741B1 (en) * 1996-03-28 1998-08-24 Alcatel Kabel Norge As Apparatus and method for anchoring a riser or the like
NO310890B1 (en) * 1997-04-29 2001-09-10 Kvaerner Oilfield Prod As Dynamic control cable for use between a floating structure and a connection point on the seabed
NO306826B2 (en) * 1998-06-12 1999-12-27 Statoilhydro Asa Device at risers
GB0002703D0 (en) * 2000-02-08 2000-03-29 Victoria Oilfield Dev Limited Mooring and flowline system
US20070081862A1 (en) * 2005-10-07 2007-04-12 Heerema Marine Contractors Nederland B.V. Pipeline assembly comprising an anchoring device and method for installing a pipeline assembly comprising an anchoring device

Also Published As

Publication number Publication date
WO2009139636A1 (en) 2009-11-19
DK201070078A (en) 2010-03-01

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Legal Events

Date Code Title Description
CREP Change of representative

Representative=s name: ZACCO NORWAY AS, POSTBOKS 2003 VIKA

FC2A Withdrawal, rejection or dismissal of laid open patent application