GB0221555D0 - Buoyancy apparatus - Google Patents

Buoyancy apparatus

Info

Publication number
GB0221555D0
GB0221555D0 GB0221555A GB0221555A GB0221555D0 GB 0221555 D0 GB0221555 D0 GB 0221555D0 GB 0221555 A GB0221555 A GB 0221555A GB 0221555 A GB0221555 A GB 0221555A GB 0221555 D0 GB0221555 D0 GB 0221555D0
Authority
GB
United Kingdom
Prior art keywords
buoyancy apparatus
buoyancy
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
GB0221555A
Other versions
GB2382116A (en
GB2382116B (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.)
2H Offshore Engineering Ltd
Original Assignee
2H Offshore Engineering Ltd
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 2H Offshore Engineering Ltd filed Critical 2H Offshore Engineering Ltd
Publication of GB0221555D0 publication Critical patent/GB0221555D0/en
Publication of GB2382116A publication Critical patent/GB2382116A/en
Application granted granted Critical
Publication of GB2382116B publication Critical patent/GB2382116B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
GB0221555A 2001-09-18 2002-09-18 Buoyancy apparatus Expired - Fee Related GB2382116B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0122451A GB0122451D0 (en) 2001-09-18 2001-09-18 Buoyancy apparatus

Publications (3)

Publication Number Publication Date
GB0221555D0 true GB0221555D0 (en) 2002-10-23
GB2382116A GB2382116A (en) 2003-05-21
GB2382116B GB2382116B (en) 2004-09-29

Family

ID=9922247

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0122451A Ceased GB0122451D0 (en) 2001-09-18 2001-09-18 Buoyancy apparatus
GB0221555A Expired - Fee Related GB2382116B (en) 2001-09-18 2002-09-18 Buoyancy apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0122451A Ceased GB0122451D0 (en) 2001-09-18 2001-09-18 Buoyancy apparatus

Country Status (2)

Country Link
GB (2) GB0122451D0 (en)
WO (1) WO2003025332A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8499336B2 (en) 2010-11-23 2013-07-30 Cisco Technology, Inc. Session redundancy among a server cluster

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646840A (en) * 1985-05-02 1987-03-03 Cameron Iron Works, Inc. Flotation riser
US4648747A (en) * 1985-06-26 1987-03-10 Hughes Tool Company Integral buoyant riser
US6004074A (en) * 1998-08-11 1999-12-21 Mobil Oil Corporation Marine riser having variable buoyancy
FR2784417B1 (en) * 1998-10-13 2000-11-17 Inst Francais Du Petrole METHOD AND DEVICE FOR ADJUSTING THE BUOYANCY OF A SUBMARINE DRILL UPRIGHT COLUMN
US7008141B2 (en) * 1999-12-07 2006-03-07 Fmc Technologies, Inc. Collapsible buoyancy device for risers on offshore structures
US20020142683A1 (en) * 2001-02-05 2002-10-03 Campbell R. Brad Nonstructural buoyancy can

Also Published As

Publication number Publication date
GB0122451D0 (en) 2001-11-07
GB2382116A (en) 2003-05-21
WO2003025332A1 (en) 2003-03-27
GB2382116B (en) 2004-09-29

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Legal Events

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

Effective date: 20060918