GB991247A - Offshore structure - Google Patents

Offshore structure

Info

Publication number
GB991247A
GB991247A GB1654964A GB1654964A GB991247A GB 991247 A GB991247 A GB 991247A GB 1654964 A GB1654964 A GB 1654964A GB 1654964 A GB1654964 A GB 1654964A GB 991247 A GB991247 A GB 991247A
Authority
GB
United Kingdom
Prior art keywords
columns
members
floating
floating members
water
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
GB1654964A
Inventor
Ferdinand Willem Va Bilderbeek
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
Priority to GB1654964A priority Critical patent/GB991247A/en
Publication of GB991247A publication Critical patent/GB991247A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0073—Details of sea bottom engaging footing
    • E02B2017/0086—Large footings connecting several legs or serving as a reservoir for the storage of oil or gas

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)

Abstract

991,247. Offshore structures. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. April 21, 1964, No. 16549/64. Heading E1H. An offshore structure comprises at least three vertically extending stabilizing columns 1, horizontally extending floating members 2 at least part of which interconnect the stabilizing columns near the lower ends thereof, a floatable platform 3 vertically movable with respect to the floating members and supported by vertically extending columns 4 which are at their lower ends connected to the floating members, and a bracing 11 extending in a substantially horizontal plane between the supporting columns and the stabilizing columns. Fig. 3 shows the structure when being floated to its location. The floating members 2 (together with the auxiliary floating members 6 arranged between them as shown in Figs. I and 2) are floating on the water and the platform 3 is in its lowermost position. Fig. 4 shows the structure in a semi-submerged position in deep water, the columns 1 and/or the members 2 (and/or 6) being ballasted and submerged under the water level 5 below the region where wave action occurs. The structure is retained on this location by anchors or is dynamically positioned by propulsion means. In more shallow water the columns 1 and/or the members 2 (and/or 6) are ballasted to rest on the bottom 12 and the platform 3 is raised up the columns 4 above the water level 5.
GB1654964A 1964-04-21 1964-04-21 Offshore structure Expired GB991247A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1654964A GB991247A (en) 1964-04-21 1964-04-21 Offshore structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1654964A GB991247A (en) 1964-04-21 1964-04-21 Offshore structure

Publications (1)

Publication Number Publication Date
GB991247A true GB991247A (en) 1965-05-05

Family

ID=10079321

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1654964A Expired GB991247A (en) 1964-04-21 1964-04-21 Offshore structure

Country Status (1)

Country Link
GB (1) GB991247A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3408821A (en) * 1965-08-10 1968-11-05 Vickers Ltd Waterborne vessel
US3433024A (en) * 1966-03-31 1969-03-18 Mobil Oil Corp Versatile marine structure
US3996754A (en) * 1973-12-14 1976-12-14 Engineering Technology Analysts, Inc. Mobile marine drilling unit
US4070868A (en) * 1975-10-25 1978-01-31 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Off-shore drilling platform and method of mounting
US4181452A (en) * 1977-05-02 1980-01-01 Entreprise d'Equipments Mecaniques et Hydrauliques E.M.H. Oil-production platform and method of assembling and installing the same on a sea bed
FR2453968A1 (en) * 1979-04-11 1980-11-07 Union Ind Entreprise DRILLING INSTALLATION, ESPECIALLY FOR OIL EXPLOITATION
WO1981000423A1 (en) * 1979-08-06 1981-02-19 Offshore Co Gravity base,jack-up platform method and apparatus
US4266887A (en) * 1977-06-10 1981-05-12 Brown & Root, Inc. Self-elevating fixed platform
US5558467A (en) * 1994-11-08 1996-09-24 Deep Oil Technology, Inc. Deep water offshore apparatus
US5609442A (en) * 1995-08-10 1997-03-11 Deep Oil Technology, Inc. Offshore apparatus and method for oil operations

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3408821A (en) * 1965-08-10 1968-11-05 Vickers Ltd Waterborne vessel
US3433024A (en) * 1966-03-31 1969-03-18 Mobil Oil Corp Versatile marine structure
US3996754A (en) * 1973-12-14 1976-12-14 Engineering Technology Analysts, Inc. Mobile marine drilling unit
US4070868A (en) * 1975-10-25 1978-01-31 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Off-shore drilling platform and method of mounting
US4181452A (en) * 1977-05-02 1980-01-01 Entreprise d'Equipments Mecaniques et Hydrauliques E.M.H. Oil-production platform and method of assembling and installing the same on a sea bed
US4266887A (en) * 1977-06-10 1981-05-12 Brown & Root, Inc. Self-elevating fixed platform
FR2453968A1 (en) * 1979-04-11 1980-11-07 Union Ind Entreprise DRILLING INSTALLATION, ESPECIALLY FOR OIL EXPLOITATION
WO1981000423A1 (en) * 1979-08-06 1981-02-19 Offshore Co Gravity base,jack-up platform method and apparatus
US5558467A (en) * 1994-11-08 1996-09-24 Deep Oil Technology, Inc. Deep water offshore apparatus
US5609442A (en) * 1995-08-10 1997-03-11 Deep Oil Technology, Inc. Offshore apparatus and method for oil operations

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