GB201207050D0 - Buoyancy arrangements for hybrid riser towers - Google Patents

Buoyancy arrangements for hybrid riser towers

Info

Publication number
GB201207050D0
GB201207050D0 GB201207050A GB201207050A GB201207050D0 GB 201207050 D0 GB201207050 D0 GB 201207050D0 GB 201207050 A GB201207050 A GB 201207050A GB 201207050 A GB201207050 A GB 201207050A GB 201207050 D0 GB201207050 D0 GB 201207050D0
Authority
GB
United Kingdom
Prior art keywords
riser
upper structure
support element
attached
upright
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.)
Withdrawn
Application number
GB201207050A
Other versions
GB2500071A (en
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.)
Acergy France SAS
Original Assignee
Acergy France SAS
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 Acergy France SAS filed Critical Acergy France SAS
Publication of GB201207050D0 publication Critical patent/GB201207050D0/en
Publication of GB2500071A publication Critical patent/GB2500071A/en
Withdrawn legal-status Critical Current

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
    • E21B17/012—Risers with buoyancy elements
    • 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)

Abstract

A hybrid riser tower comprises at least one support element 30 and at least one riser element 34 both attached to an upper structure. Those elements extend axially in parallel as a riser column that can be supported buoyantly in an upright orientation, with the riser element hanging from the upper structure. Buoyancy modules 38 are attached at respective load-bearing locations along the length of the support element 30 to impart axial upthrust to the support element when the riser column is upright. The invention also provides at least one supplementary buoyancy module 42 that is attached to the riser element 34 to impart axial upthrust to the riser element 34 when the riser column is upright. This reduces or eliminates weight loading applied by the riser element to the upper structure and so reduces or eliminates compression loading in the support element beneath the upper structure, as experienced particularly in the up-ending phase of installation.
GB201207050A 2012-03-05 2012-04-23 Riser tower with buoyancy modules Withdrawn GB2500071A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201203849A GB2500102B (en) 2012-03-05 2012-03-05 Buoyancy arrangements for hybrid riser towers

Publications (2)

Publication Number Publication Date
GB201207050D0 true GB201207050D0 (en) 2012-06-06
GB2500071A GB2500071A (en) 2013-09-11

Family

ID=46003144

Family Applications (2)

Application Number Title Priority Date Filing Date
GB201203849A Active GB2500102B (en) 2012-03-05 2012-03-05 Buoyancy arrangements for hybrid riser towers
GB201207050A Withdrawn GB2500071A (en) 2012-03-05 2012-04-23 Riser tower with buoyancy modules

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB201203849A Active GB2500102B (en) 2012-03-05 2012-03-05 Buoyancy arrangements for hybrid riser towers

Country Status (1)

Country Link
GB (2) GB2500102B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2018296421B2 (en) * 2017-07-03 2024-03-21 Subsea 7 Norway As Offloading hydrocarbons from subsea fields

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0704670D0 (en) * 2006-11-08 2007-04-18 Acergy France Sa Hybrid tower and methods of installing same
GB0820395D0 (en) * 2008-11-07 2008-12-17 Acergy France Sa Buoyancy device for marine structures
CN102782242B (en) * 2009-10-21 2015-12-16 氟石科技公司 For the mixing float type of deep water and guyed tower and standpipe

Also Published As

Publication number Publication date
GB201203849D0 (en) 2012-04-18
GB2500071A (en) 2013-09-11
GB2500102A (en) 2013-09-11
GB2500102B (en) 2014-01-29

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)