GB2442694A - Strake systems and methods - Google Patents

Strake systems and methods

Info

Publication number
GB2442694A
GB2442694A GB0802933A GB0802933A GB2442694A GB 2442694 A GB2442694 A GB 2442694A GB 0802933 A GB0802933 A GB 0802933A GB 0802933 A GB0802933 A GB 0802933A GB 2442694 A GB2442694 A GB 2442694A
Authority
GB
United Kingdom
Prior art keywords
strake
systems
methods
structural element
helical strake
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
GB0802933A
Other versions
GB2442694B (en
GB0802933D0 (en
Inventor
Donald Wayne Allen
Stephen Paul Armstrong
Dean Leroy Henning
Damon Michael Mcmillan
David Wayne Mcmillan
Christopher Steven West
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB0802933D0 publication Critical patent/GB0802933D0/en
Publication of GB2442694A publication Critical patent/GB2442694A/en
Application granted granted Critical
Publication of GB2442694B publication Critical patent/GB2442694B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/10—Influencing flow of fluids around bodies of solid material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/04—Fastening or guiding equipment for chains, ropes, hawsers, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/03—Pipe-laying vessels
    • 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
    • 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
    • F16L9/00—Rigid pipes
    • F16L9/006—Rigid pipes specially profiled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B63B21/502—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers by means of tension legs
    • B63B2021/504—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers by means of tension legs comprising suppressors for vortex induced vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B63B21/502—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers by means of tension legs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

There is disclosed a system comprising a structural element (404) , at least one helical strake (406a, 406b, 406c) about the structural element, and at least one ramp (408b, 408c) to provide a transition from the structural element to the helical strake.
GB0802933A 2005-09-02 2006-08-30 Strake systems and methods Expired - Fee Related GB2442694B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71398105P 2005-09-02 2005-09-02
PCT/US2006/033872 WO2007027781A2 (en) 2005-09-02 2006-08-30 Strake systems and methods

Publications (3)

Publication Number Publication Date
GB0802933D0 GB0802933D0 (en) 2008-03-26
GB2442694A true GB2442694A (en) 2008-04-09
GB2442694B GB2442694B (en) 2010-02-24

Family

ID=37684976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0802933A Expired - Fee Related GB2442694B (en) 2005-09-02 2006-08-30 Strake systems and methods

Country Status (4)

Country Link
US (2) US20090220307A1 (en)
BR (1) BRPI0615319A2 (en)
GB (1) GB2442694B (en)
WO (1) WO2007027781A2 (en)

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* Cited by examiner, † Cited by third party
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MX2008011416A (en) * 2006-03-13 2008-09-18 Shell Int Research Strake systems and methods.
BRPI0719131A2 (en) * 2006-11-22 2014-02-04 Shell Int Research SYSTEM FOR REDUCING VROTIC-INDUCED TRACT AND / OR VIBRATION OF A FRAMEWORK, AND METHOD FOR MODIFYING A VROTIC-INDUCED TRAIL AND / OR VIBRATION FRAMEWORK.
GB2459583A (en) * 2007-02-15 2009-11-04 Shell Int Research Vortex induced vibration suppression systems and methods
WO2008112758A1 (en) * 2007-03-14 2008-09-18 Shell Oil Company Vortex induced vibration suppression systems and methods
US8593905B2 (en) * 2009-03-09 2013-11-26 Ion Geophysical Corporation Marine seismic surveying in icy or obstructed waters
CN102213646B (en) * 2010-04-09 2013-12-25 中国海洋石油总公司 Experimental device and experimental method for power substructure of bracket pipe frame of pipe-laying ship
US9085995B2 (en) 2012-04-18 2015-07-21 Hamilton Sundstrand Corporation Anti-vortex shedding generator for APU support
TWI620850B (en) * 2012-06-28 2018-04-11 丹麥技術大學 A construction and a tension element comprising a cable and one or more strakes, and a method for reducing rain and wind induced vibrations in a cable
IN2014KN02894A (en) * 2012-06-28 2015-05-08 Univ Danmarks Tekniske
US20140044488A1 (en) * 2012-08-13 2014-02-13 Chevron U.S.A. Inc. Conduit displacement mitigation apparatus, methods and systems for use with subsea conduits
US20140044489A1 (en) 2012-08-13 2014-02-13 Chevron U.S.A. Inc. Conduit displacement mitigation apparatus, methods and systems for use with subsea conduits

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002008650A1 (en) * 2000-07-08 2002-01-31 Allbrown Universal Components Limited A strake receptor for a pipe
US6347911B1 (en) * 1996-06-11 2002-02-19 Slickbar Products Corp. Vortex shedding strake wraps for submerged pilings and pipes
US6561734B1 (en) * 1999-05-07 2003-05-13 Shell Oil Company Partial helical strake for vortex-induced-vibrationsuppression

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US3899991A (en) * 1973-12-17 1975-08-19 Us Navy Weather resistant segmented fairing for a tow cable
US4398487A (en) * 1981-06-26 1983-08-16 Exxon Production Research Co. Fairing for elongated elements
US5421413A (en) * 1993-11-02 1995-06-06 Shell Oil Company Flexible fairings to reduce vortex-induced vibrations
US5410979A (en) * 1994-02-28 1995-05-02 Shell Oil Company Small fixed teardrop fairings for vortex induced vibration suppression
US5875728A (en) * 1994-03-28 1999-03-02 Shell Oil Company Spar platform
US6010278A (en) * 1996-07-19 2000-01-04 Shell Oil Company Fairings for deepwater drilling risers
US6223672B1 (en) * 1996-11-15 2001-05-01 Shell Oil Company Ultrashort fairings for suppressing vortex-induced-vibration
US6196768B1 (en) * 1996-11-15 2001-03-06 Shell Oil Company Spar fairing
US6179524B1 (en) * 1996-11-15 2001-01-30 Shell Oil Company Staggered fairing system for suppressing vortex-induced-vibration
US6227137B1 (en) * 1996-12-31 2001-05-08 Shell Oil Company Spar platform with spaced buoyancy
US6092483A (en) * 1996-12-31 2000-07-25 Shell Oil Company Spar with improved VIV performance
US6263824B1 (en) * 1996-12-31 2001-07-24 Shell Oil Company Spar platform
US6309141B1 (en) * 1997-12-23 2001-10-30 Shell Oil Company Gap spar with ducking risers
US7017666B1 (en) * 1999-09-16 2006-03-28 Shell Oil Company Smooth sleeves for drag and VIV reduction of cylindrical structures
US6571878B2 (en) * 1999-09-16 2003-06-03 Shell Oil Company Smooth buoyancy system for reducing vortex induced vibration in subsea systems
US6644894B2 (en) * 2000-01-31 2003-11-11 Shell Oil Company Passive apparatus and method for reducing fluid induced stresses by introduction of energetic flow into boundary layer around structures
US6551029B2 (en) * 2000-01-31 2003-04-22 Hongbo Shu Active apparatus and method for reducing fluid induced stresses by introduction of energetic flow into boundary layer around an element
US20020035957A1 (en) * 2000-02-04 2002-03-28 Fischer Ferdinand J. Thruster apparatus and method for reducing fluid-induced motions of and stresses within an offshore platform
US6702026B2 (en) * 2000-07-26 2004-03-09 Shell Oil Company Methods and systems for reducing drag and vortex-induced vibrations on cylindrical structures
US6685394B1 (en) * 2000-08-24 2004-02-03 Shell Oil Company Partial shroud with perforating for VIV suppression, and method of using
US6695540B1 (en) * 2000-11-14 2004-02-24 Weldon Taquino Vortex induced vibration suppression device and method
US6896447B1 (en) 2000-11-14 2005-05-24 Weldon Taquino Vortex induced vibration suppression device and method
US6565287B2 (en) * 2000-12-19 2003-05-20 Mcmillan David Wayne Apparatus for suppression of vortex induced vibration without aquatic fouling and methods of installation
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US7070361B2 (en) * 2003-03-06 2006-07-04 Shell Oil Company Apparatus and methods for providing VIV suppression to a riser system comprising umbilical elements
US20060021560A1 (en) * 2004-05-02 2006-02-02 Mcmillan David W Tail fairing designed with features for fast installation and/or for suppression of vortices addition between fairings, apparatus incorporating such fairings, methods of making and using such fairings and apparatus, and methods of installing such fairings
US8029210B2 (en) * 2004-05-17 2011-10-04 Shell Oil Company Methods and apparatus for installation of VIV suppression during installation of marine pipeline
BRPI0517922A (en) * 2004-11-03 2008-10-21 Shell Int Research system for retrofitting a sensor and sensor communication system for monitoring an installed structural element, and method for monitoring physical changes in an underwater element
AU2006203991B2 (en) * 2005-01-07 2009-03-26 Shell Internationale Research Maatschappij B.V. Vortex induced vibration optimizing system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6347911B1 (en) * 1996-06-11 2002-02-19 Slickbar Products Corp. Vortex shedding strake wraps for submerged pilings and pipes
US6561734B1 (en) * 1999-05-07 2003-05-13 Shell Oil Company Partial helical strake for vortex-induced-vibrationsuppression
WO2002008650A1 (en) * 2000-07-08 2002-01-31 Allbrown Universal Components Limited A strake receptor for a pipe

Also Published As

Publication number Publication date
GB2442694B (en) 2010-02-24
US20070125546A1 (en) 2007-06-07
GB0802933D0 (en) 2008-03-26
BRPI0615319A2 (en) 2016-09-13
WO2007027781A2 (en) 2007-03-08
US20090220307A1 (en) 2009-09-03
WO2007027781A3 (en) 2007-05-03

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Legal Events

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

Effective date: 20110830