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NO882790L - UNDERWATER OIL PRODUCTION. - Google Patents

UNDERWATER OIL PRODUCTION.

Info

Publication number
NO882790L
NO882790L NO882790A NO882790A NO882790L NO 882790 L NO882790 L NO 882790L NO 882790 A NO882790 A NO 882790A NO 882790 A NO882790 A NO 882790A NO 882790 L NO882790 L NO 882790L
Authority
NO
Norway
Prior art keywords
riser
vessel
adjacent
well
wellhead
Prior art date
Application number
NO882790A
Other languages
Norwegian (no)
Other versions
NO882790D0 (en
Inventor
Richard Charles Toft
Original Assignee
British Petroleum Co Plc
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 British Petroleum Co Plc filed Critical British Petroleum Co Plc
Publication of NO882790D0 publication Critical patent/NO882790D0/en
Publication of NO882790L publication Critical patent/NO882790L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00—Buoys
    • B63B22/02—Buoys specially adapted for mooring a vessel
    • B63B22/021—Buoys specially adapted for mooring a vessel and for transferring fluids, e.g. liquids
    • 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
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • 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
    • F16L1/14—Laying or reclaiming pipes on or under water between the surface and the bottom

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

En fremgangsmåte for oljeproduksjon fra et undervanns brønnhode (9) på sjøbunnen via et fleksibelt stigerør (4) til et dynamisk posisjonert fartøy (5). uten brtik av en svlvelkopling som forbinder stigerøret (4) med fartøyet (5) eller en kopling som krever at rør blir viklet ut og viklet opp. Innbefatter bruken av et fleksibelt stigerør. Lengden til det fleksible stigerør og posisjonen til fartøyet (6)1 forhold til brønnhodet (3) er slik at stigerøret (4) har et parti (A-B) inntil brønnhodet som bøyer under sin egen vekt. et parti (B- C) som forløi>er mer eller mindre horisontalt og er 1 stand til sideveis bevegelse, og et parti (C-D) inntil fartøyet (5). Istand til vertikal og sideveis beveg- else. Stlgererslengden er betydelig større enn vann- dybden 1 hvilke brønnen er plassert, for å skape rom for det horisontale parti av stigerøret og stlgerørs- konstruksjonen er slik at den har betydelig større tosjonsstlvhet enn bøyestlvhet. Fartøyet holdes på plass i>å en slik måte at det Ikke er stasjonert direkte over brønnen og slik at det geometriske sted til det nominelle senter for det dynamisk posisjonerte fartøysavtrykk kan beskrive en kurveiinjet bane som også er til siden for brønnens posisjon.A method of oil production from a subsea wellhead (9) on the seabed via a flexible riser (4) to a dynamically positioned vessel (5). without the need for a swivel connection connecting the riser (4) to the vessel (5) or a connection requiring the pipes to be unwound and wound up. Includes the use of a flexible riser. The length of the flexible riser and the position of the vessel (6) 1 relative to the wellhead (3) is such that the riser (4) has a portion (A-B) adjacent the wellhead which bends under its own weight. a portion (B-C) extending> is more or less horizontal and is capable of lateral movement, and a portion (C-D) adjacent the vessel (5). Able for vertical and lateral movement. The rod length is considerably greater than the water depth 1 in which the well is positioned, to create space for the horizontal portion of the riser and the riser structure is such that it has considerably greater tensile stiffness than bending stiffness. The vessel is held in position> in such a way that it is not stationed directly above the well and so that the geometric location of the nominal center of the dynamically positioned vessel imprint can describe a curve-oriented trajectory which is also adjacent to the well's position.

NO882790A 1987-06-26 1988-06-23 UNDERWATER OIL PRODUCTION. NO882790L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878714985A GB8714985D0 (en) 1987-06-26 1987-06-26 Underwater oil production

Publications (2)

Publication Number Publication Date
NO882790D0 NO882790D0 (en) 1988-06-23
NO882790L true NO882790L (en) 1988-12-27

Family

ID=10619596

Family Applications (1)

Application Number Title Priority Date Filing Date
NO882790A NO882790L (en) 1987-06-26 1988-06-23 UNDERWATER OIL PRODUCTION.

Country Status (2)

Country Link
GB (2) GB8714985D0 (en)
NO (1) NO882790L (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9106297D0 (en) * 1991-03-25 1991-05-08 British Petroleum Co Plc Method of transporting fluids
GB2273694B (en) * 1992-12-24 1996-08-21 Bluewater Terminal Systems Nv Offshore loading system
NO305618B1 (en) * 1995-08-03 1999-06-28 Norske Stats Oljeselskap Ladders ° r
NO970657L (en) * 1997-02-13 1998-08-14 Hitec Asa Storage of a number of parallel pipes / hoses / cables ect. between a surface craft and a point on the seabed
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
NO311054B1 (en) * 1997-04-29 2001-10-01 Kvaerner Oilfield Prod As Underwater control cable
GB2330157B (en) * 1997-10-07 2001-11-07 Bluewater Terminal Systems Nv Riser system for connecting a seabed installation with a floating vessel
FR2840350B1 (en) * 2002-05-31 2004-12-10 Bouygues Offshore MULTI-CATENARY TYPE SURFACE LINK SUBMARINE CONDUCT
CN103987621A (en) * 2011-05-06 2014-08-13 国民油井华高丹麦公司 Offshore system
SG11201502537VA (en) * 2012-10-30 2015-05-28 Exxonmobil Upstream Res Co System and method for obstacle avoidance during hydrocarbon operations

Also Published As

Publication number Publication date
GB2206144A (en) 1988-12-29
GB8814333D0 (en) 1988-07-20
GB8714985D0 (en) 1987-08-05
NO882790D0 (en) 1988-06-23
GB2206144B (en) 1990-11-14

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