GB2017794A - Offshore Structure - Google Patents

Offshore Structure

Info

Publication number
GB2017794A
GB2017794A GB7902466A GB7902466A GB2017794A GB 2017794 A GB2017794 A GB 2017794A GB 7902466 A GB7902466 A GB 7902466A GB 7902466 A GB7902466 A GB 7902466A GB 2017794 A GB2017794 A GB 2017794A
Authority
GB
United Kingdom
Prior art keywords
conical portion
ice
angle
lower conical
inclination
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
GB7902466A
Other versions
GB2017794B (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.)
Chevron USA Inc
Original Assignee
Chevron Research and Technology Co
Chevron Research Co
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 Chevron Research and Technology Co, Chevron Research Co filed Critical Chevron Research and Technology Co
Publication of GB2017794A publication Critical patent/GB2017794A/en
Application granted granted Critical
Publication of GB2017794B publication Critical patent/GB2017794B/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
    • E02B17/0017—Means for protecting offshore constructions
    • E02B17/0021—Means for protecting offshore constructions against ice-loads

Abstract

An offshore structure, such as a drilling platform, which is able to withstand the ice forces imposed thereon by impinging ice sheets and other larger masses of ice is provided with an upper conical portion 6 coaxially positioned relative to a lower conical portion 4. The surfaces forming the walls of both the upper and lower conical portions are inclined at an angle to the horizontal to receive the ice masses moving into contact with the structure. The angle of inclination from the horizontal of the surface of the upper conical portion is greater than the angle of inclination of the surface of the lower conical portion and the maximum cross-sectional diameter of the upper conical portion is no greater than that at the top of the lower conical portion, i.e. the minimum cross-sectional diameter of the lower portion. <IMAGE>
GB7902466A 1978-03-29 1979-01-24 Offshore structure Expired GB2017794B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89142178A 1978-03-29 1978-03-29

Publications (2)

Publication Number Publication Date
GB2017794A true GB2017794A (en) 1979-10-10
GB2017794B GB2017794B (en) 1982-06-03

Family

ID=25398149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7902466A Expired GB2017794B (en) 1978-03-29 1979-01-24 Offshore structure

Country Status (5)

Country Link
JP (1) JPS54133702A (en)
CA (1) CA1230745A (en)
GB (1) GB2017794B (en)
NO (1) NO153504C (en)
SE (1) SE438691B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325655A (en) 1980-01-16 1982-04-20 Exxon Production Research Company Multiple slope structure
FR2562112A1 (en) * 1984-04-03 1985-10-04 Doris Dev Richesse Sous Marine Ice-breaking platform for oil production or mining
US5383748A (en) * 1991-06-19 1995-01-24 Kvaerner Earl And Wright (A Division Of Kvaerner H&G Offshore Ltd.) Offshore structure and installation method
WO2002095139A1 (en) * 2001-05-22 2002-11-28 Esa Eranti Foundation in water
WO2012067749A1 (en) * 2010-11-18 2012-05-24 Conocophillips Company Conical piled monopod
CN103168136A (en) * 2010-10-21 2013-06-19 科诺科菲利浦公司 Ice worthy jack-up drilling unit with conical piled monopod
CN103180513A (en) * 2010-10-21 2013-06-26 科诺科菲利浦公司 Ice worthy jack-up drilling unit with conical piled monopod and sockets
WO2014060650A2 (en) 2012-10-18 2014-04-24 Stx Finland Oy Offshore structure
WO2014067885A1 (en) * 2012-10-29 2014-05-08 Electric Waves, S.L. Support base for an offshore structure, particularly adapted to provide generation of renewable energy
WO2016156624A1 (en) * 2015-03-27 2016-10-06 Drace Infraestructuras, S.A. Gravity foundation for the installation of offshore wind turbines
US9487944B2 (en) * 2014-12-22 2016-11-08 Muhammad Amzad Ali Jack-up conical structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639167A (en) * 1985-04-24 1987-01-27 Odeco, Inc. Deep water mobile submersible arctic structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5364901A (en) * 1976-11-24 1978-06-09 Mitsui Shipbuilding Eng Ice crusher for structure used in icy waters

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325655A (en) 1980-01-16 1982-04-20 Exxon Production Research Company Multiple slope structure
FR2562112A1 (en) * 1984-04-03 1985-10-04 Doris Dev Richesse Sous Marine Ice-breaking platform for oil production or mining
US5383748A (en) * 1991-06-19 1995-01-24 Kvaerner Earl And Wright (A Division Of Kvaerner H&G Offshore Ltd.) Offshore structure and installation method
WO2002095139A1 (en) * 2001-05-22 2002-11-28 Esa Eranti Foundation in water
CN103180513A (en) * 2010-10-21 2013-06-26 科诺科菲利浦公司 Ice worthy jack-up drilling unit with conical piled monopod and sockets
CN103168136A (en) * 2010-10-21 2013-06-19 科诺科菲利浦公司 Ice worthy jack-up drilling unit with conical piled monopod
CN103168136B (en) * 2010-10-21 2015-11-25 科诺科菲利浦公司 With the iceproof jack-up rigs unit of taper piling prop stand
CN103180513B (en) * 2010-10-21 2016-06-08 科诺科菲利浦公司 Iceproof jack-up rigs unit and boring method
WO2012067749A1 (en) * 2010-11-18 2012-05-24 Conocophillips Company Conical piled monopod
US8821071B2 (en) 2010-11-18 2014-09-02 Conocophillips Company Conical piled monopod
WO2014060650A2 (en) 2012-10-18 2014-04-24 Stx Finland Oy Offshore structure
WO2014067885A1 (en) * 2012-10-29 2014-05-08 Electric Waves, S.L. Support base for an offshore structure, particularly adapted to provide generation of renewable energy
US9487944B2 (en) * 2014-12-22 2016-11-08 Muhammad Amzad Ali Jack-up conical structure
WO2016156624A1 (en) * 2015-03-27 2016-10-06 Drace Infraestructuras, S.A. Gravity foundation for the installation of offshore wind turbines
US10443574B2 (en) 2015-03-27 2019-10-15 Drace Infraestructuras, S.A. Gravity foundation for the installation of offshore wind turbines

Also Published As

Publication number Publication date
NO153504B (en) 1985-12-23
SE438691B (en) 1985-04-29
CA1230745A (en) 1987-12-29
NO791018L (en) 1980-01-22
GB2017794B (en) 1982-06-03
JPS54133702A (en) 1979-10-17
SE7900192L (en) 1979-09-30
NO153504C (en) 1986-04-02
JPS6218683B2 (en) 1987-04-24

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Legal Events

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

Effective date: 19940124