GB1371846A - Buoyant structure for example for use in marine drilling - Google Patents

Buoyant structure for example for use in marine drilling

Info

Publication number
GB1371846A
GB1371846A GB2194272A GB2194272A GB1371846A GB 1371846 A GB1371846 A GB 1371846A GB 2194272 A GB2194272 A GB 2194272A GB 2194272 A GB2194272 A GB 2194272A GB 1371846 A GB1371846 A GB 1371846A
Authority
GB
United Kingdom
Prior art keywords
base
columns
members
tops
pairs
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.)
Expired
Application number
GB2194272A
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.)
DEQUIPEMENTS MECANIQUES HYDRAU
Original Assignee
DEQUIPEMENTS MECANIQUES HYDRAU
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 DEQUIPEMENTS MECANIQUES HYDRAU filed Critical DEQUIPEMENTS MECANIQUES HYDRAU
Publication of GB1371846A publication Critical patent/GB1371846A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/107—Semi-submersibles; Small waterline area multiple hull vessels and the like, e.g. SWATH
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
    • B63B2001/044—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull with a small waterline area compared to total displacement, e.g. of semi-submersible type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
    • B63B2001/128—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising underwater connectors between the hulls

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Earth Drilling (AREA)
  • Revetment (AREA)

Abstract

1371846 Floating offshore structure ENTREPRISE D'EQUIPEMENTS MECANIQUES & HYDRAULIQUES 10 May 1972 [14 May 1971] 21942/72 Heading E1H A floating offshore structure, e.g. drilling rig, comprises a tubular base 1 of annular or polygonal shape in plan and a plurality of hollow columns 2 mounted in pairs on the base 1 and inclined so as to be connected in pairs at their upper ends thus forming a trellislike framework, the structure having additional bracing members 3, 5 and (12) Fig. 3 (not shown). The bracings 5 and (12) respectively connect the bases and tops of the columns 2 to a platform 4 to support the latter, whilst members 3 connect the tops of adjacent columns 2. The tubular base 1 may be trapezoidal in section and house propulsion means for the structure. The base may be fabricated from a plurality of sections which are welded together in the water by employing suitably shaped caissons, Figs. 8, 9 (not shown) to surround the weld join. The base 1 may be rectangular in plan comprising a pair of parallel elongate hulls interconnected adjacent each end by transverse members to form a catamaran-like structure Figs. 10, 11 (not shown).
GB2194272A 1971-05-14 1972-05-10 Buoyant structure for example for use in marine drilling Expired GB1371846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR717117522A FR2137154B1 (en) 1971-05-14 1971-05-14

Publications (1)

Publication Number Publication Date
GB1371846A true GB1371846A (en) 1974-10-30

Family

ID=9077054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2194272A Expired GB1371846A (en) 1971-05-14 1972-05-10 Buoyant structure for example for use in marine drilling

Country Status (3)

Country Link
US (1) US3841249A (en)
FR (1) FR2137154B1 (en)
GB (1) GB1371846A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4556008A (en) * 1981-06-22 1985-12-03 Adragem Limited Semi-submersible marine platform

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2408512A1 (en) * 1977-11-10 1979-06-08 Dziewolski Richard Anchored floating platform e.g. for drilling - has central vertical tube connected at lower end by radial flotation chambers to platform's vertical flotation legs
CA1250188A (en) * 1983-04-28 1989-02-21 Paul C. Dahan Wide based semi-submersible vessel
US4652769A (en) * 1984-02-14 1987-03-24 Ion Tech, Inc. Module power supply
JPH0334397Y2 (en) * 1984-12-26 1991-07-22
NO166400C (en) * 1986-03-11 1991-07-17 Fred Olsen REQUEST FOR PARTIAL SUBMISSIBLE PLATFORM.
US7462000B2 (en) * 2006-02-28 2008-12-09 Seahorse Equipment Corporation Battered column tension leg platform
US8087849B2 (en) * 2006-02-28 2012-01-03 Seahorse Equipment Corporation Battered column tension leg platform

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL277785A (en) * 1961-05-05 1900-01-01
US3154039A (en) * 1962-07-25 1964-10-27 Jersey Prod Res Co Stable floating foundation
US3407610A (en) * 1967-05-26 1968-10-29 Kerr Mc Gee Oil Ind Inc Submersible vessel having an irregular polygonal stabilizing pattern
US3575005A (en) * 1967-06-29 1971-04-13 Maurice N Sumner Method and apparatus for offshore operations
US3447502A (en) * 1967-07-14 1969-06-03 Litton Systems Inc Marine vessel
US3577946A (en) * 1969-02-06 1971-05-11 Deep Oil Technology Inc Stable marine construction
US3580207A (en) * 1969-04-04 1971-05-25 Mcmullen Ass John J Method and means for mooring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4556008A (en) * 1981-06-22 1985-12-03 Adragem Limited Semi-submersible marine platform

Also Published As

Publication number Publication date
FR2137154A1 (en) 1972-12-29
US3841249A (en) 1974-10-15
FR2137154B1 (en) 1973-05-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee