GB1048775A - A semi-submersible floating platform unit - Google Patents

A semi-submersible floating platform unit

Info

Publication number
GB1048775A
GB1048775A GB15504/65A GB1550465A GB1048775A GB 1048775 A GB1048775 A GB 1048775A GB 15504/65 A GB15504/65 A GB 15504/65A GB 1550465 A GB1550465 A GB 1550465A GB 1048775 A GB1048775 A GB 1048775A
Authority
GB
United Kingdom
Prior art keywords
stabilizing columns
platform
april
drilling
platform unit
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
GB15504/65A
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 GB1048775A publication Critical patent/GB1048775A/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 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
    • B63B2039/067—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water effecting motion dampening by means of fixed or movable resistance bodies, e.g. by bilge keels

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)
  • Bridges Or Land Bridges (AREA)
  • Earth Drilling (AREA)

Abstract

1,048,775. Offshore floating structures. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. April 12, 1965 [April 13, 1964], No. 15504/65. Heading E1H. A floating platform unit for carrying out offshore operations such as drilling or producing a well, comprises four vertical stabilizing columns 11, 12 each having an annular chamber 17 in open communication through ports 13 with the space outside the stabilizing columns and positioned at a level adjacent and above the water level 25. Buoyant cross-bracing hull members 14, 15, 16 extend laterally between the stabilizing columns and near their lower ends. The annular chamber 17 may be divided for reinforcing purposes into a series of smaller chambers by vertical plates 18 having fluid flow ports 19. The four stabilizing columns 11, 12 are selectively flooded to lower the entire platform in the water and in heavy weather flooding of the annular chambers 17 reduces rolling and pitching of the platform so that drilling may continue.
GB15504/65A 1964-04-13 1965-04-12 A semi-submersible floating platform unit Expired GB1048775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US359110A US3224402A (en) 1964-04-13 1964-04-13 Stabilized floating drilling platform

Publications (1)

Publication Number Publication Date
GB1048775A true GB1048775A (en) 1966-11-16

Family

ID=23412351

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15504/65A Expired GB1048775A (en) 1964-04-13 1965-04-12 A semi-submersible floating platform unit

Country Status (3)

Country Link
US (1) US3224402A (en)
GB (1) GB1048775A (en)
NL (1) NL6504622A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1151997A (en) * 1965-08-22 1969-05-14 Seizo Motora Marine Hull Adapted for Considerably Reducing Vertical Forces Therein Caused by Waves
US4014176A (en) * 1975-09-04 1977-03-29 Brown & Root, Inc. Methods and apparatus for applying buoyant forces to offshore tower legs and providing and enclosing buoyancy chambers
FR2409187A1 (en) * 1977-11-22 1979-06-15 Iceberg Transport Int AUTOSTABLE FLOATING TOWER
US4850744A (en) * 1987-02-19 1989-07-25 Odeco, Inc. Semi-submersible platform with adjustable heave motion
NO300884B1 (en) * 1995-12-06 1997-08-11 Fred Olsen Wave dampers for floating structures
CN102490876B (en) * 2011-12-23 2014-04-02 新疆金风科技股份有限公司 Floating offshore wind turbine movement suppression device and floating base for offshore wind turbine

Also Published As

Publication number Publication date
US3224402A (en) 1965-12-21
NL6504622A (en) 1965-10-14

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