GB1463605A - Drilling vessel - Google Patents

Drilling vessel

Info

Publication number
GB1463605A
GB1463605A GB4961874A GB4961874A GB1463605A GB 1463605 A GB1463605 A GB 1463605A GB 4961874 A GB4961874 A GB 4961874A GB 4961874 A GB4961874 A GB 4961874A GB 1463605 A GB1463605 A GB 1463605A
Authority
GB
United Kingdom
Prior art keywords
legs
platform
lowered
hull
sea bottom
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
GB4961874A
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 GB1463605A publication Critical patent/GB1463605A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Prostheses (AREA)

Abstract

1463605 Offshore structures CHEVRON RESEARCH CO 15 Nov 1974 [21 Dec 1973] 49618/74 Heading E1H To reduce the stresses caused by wave motion in the main support legs 56 of a jack up platform 50 as they are first grounded or first lifted from the sea bottom at a particular location, the platform 50 has auxiliary semi submersible support legs 57 which are extendable and retractable by jacking and or ballasting and when extended lift the platform hull above the waves and thereby lessen their consequent induced motion. To locate the platform, the legs 56 are lowered to a position above the bottom and the legs 57 are lowered and locked in position prior to deballasting so that they lift the platform above the waves. The legs 56 are then lowered into a bottom engaging position and the legs 57 fully retracted, the platform hull then being jacked up on the legs 56 to its final position. When retracted the legs 57 may be ballasted to increase the platform's weight and facilitate penetration of the legs 56 into the sea bottom. The operation is reversed to remove the platform and if a force greater than that provided by the legs 57 is required to move the legs 56 out of the sea bottom, the platform hull can be lowered on the legs 57 to the water to increase the upward buoyancy forces. The legs 57 may also be used to support the platform in the event of an emergency e.g. failure of one of the main legs 56. The platform may be self propelled.
GB4961874A 1973-12-21 1974-11-15 Drilling vessel Expired GB1463605A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US427175A US3872679A (en) 1973-12-21 1973-12-21 Apparatus and method for reducing the forces on extendible legs of a floating vessel

Publications (1)

Publication Number Publication Date
GB1463605A true GB1463605A (en) 1977-02-02

Family

ID=23693785

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4961874A Expired GB1463605A (en) 1973-12-21 1974-11-15 Drilling vessel

Country Status (10)

Country Link
US (1) US3872679A (en)
JP (1) JPS5738478B2 (en)
CA (1) CA1007470A (en)
DE (1) DE2452560C2 (en)
DK (1) DK154697C (en)
FR (1) FR2255426B1 (en)
GB (1) GB1463605A (en)
IS (1) IS957B6 (en)
NL (1) NL174970C (en)
NO (2) NO139040C (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR7804645A (en) * 1978-07-19 1980-01-22 Petroleo Brasileiro Sa SELF-LIFTING PLATFORM FOR MARITIME DRILLING
FR2441019A1 (en) * 1978-11-09 1980-06-06 Lapaix Andre Barge system forming landing stage - utilises vertical pillars lowered by electric motors to water bed
US4472083A (en) * 1982-12-20 1984-09-18 Younes David T Oil well rig with water tower
US4666341A (en) * 1983-07-22 1987-05-19 Santa Fe International Corporation Mobile sea barge and plateform
US5855455A (en) * 1997-07-09 1999-01-05 Ensco International, Inc. Submersible and semi-submersible dry lift carrier and method of operation for carrying a drilling rig and platform
US6305881B1 (en) * 1998-05-22 2001-10-23 Herman J. Schellstede & Associates, Inc. Barge stabilization method
US6523491B1 (en) * 1999-11-12 2003-02-25 Textron Inc. Lift boat
KR100823005B1 (en) * 2001-12-05 2008-04-16 주식회사 포스코 Wharf construction method
NL1020512C2 (en) * 2002-05-01 2003-11-06 Marine Structure Consul Method and vessel for manipulating an offshore construction.
WO2004067375A1 (en) * 2003-01-17 2004-08-12 Textron Inc. Lift boat
KR100560847B1 (en) * 2005-06-27 2006-03-13 유진건설주식회사 Method for constructing a light beacon by excavating tube-type flute
US20070039537A1 (en) * 2005-08-22 2007-02-22 Lockheed Martin Corporation Method and Apparatus for Ballast-Assisted Reconfiguration of a Variable-Draft Vessel
US7453166B2 (en) * 2006-06-06 2008-11-18 Oceana Energy Company System for generating electricity from fluid currents
US20110101697A1 (en) * 2008-07-01 2011-05-05 Oceana Energy Company Systems and methods for supporting underwater energy conversion devices
US20100155682A1 (en) * 2008-12-06 2010-06-24 Burns Mark L Fast jack liftboat jacking system
US9359991B2 (en) 2009-10-29 2016-06-07 Oceana Energy Company Energy conversion systems and methods
NL2004402C2 (en) * 2010-03-16 2011-09-20 Mammoet Europ B V Semisubmersible and method of its operation.
BR112013010119B1 (en) * 2010-11-18 2021-02-17 Shell Internationale Research Maatschappij B.V. set of upstream water supply pipe, off-shore structure, and methods of producing a liquefied hydrocarbon stream and of producing a vaporous hydrocarbon stream
KR101271741B1 (en) * 2011-06-16 2013-06-04 삼성중공업 주식회사 Ship for offshore installation and method for installing the same
US20130315677A1 (en) * 2012-05-01 2013-11-28 Herman Joseph Schellstede Lift/Boarding Vessel
SG2012086682A (en) * 2012-11-23 2014-06-27 Keppel Offshore & Marine Technology Ct Pte Ltd Structure-assisted jackup system
US9457875B2 (en) 2015-02-09 2016-10-04 Graduate School At Shenzhen, Tsinghua University Floating type self-lifting drilling platform
CN104627332B (en) * 2015-02-09 2017-03-15 清华大学深圳研究生院 A kind of floating self-elevating drilling platform
CN106351226B (en) * 2016-10-19 2018-07-17 中交第一航务工程局有限公司 The anti-puncture precompressed support method of leveling ship

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771747A (en) * 1950-07-19 1956-11-27 Bethlehem Steel Corp Offshore drilling barge
US2841961A (en) * 1953-04-13 1958-07-08 Delong Corp Off-shore drilling barge
FR1468413A (en) * 1965-02-17 1967-02-03 Verschure & Co S Scheepswerf E Method for carrying out work on the bed of very rough water from a pontoon which can be fixed in place and pontoon for the implementation of this process
US3605669A (en) * 1969-12-01 1971-09-20 Kerr Mc Gee Chem Corp Floating self-elevating platform

Also Published As

Publication number Publication date
CA1007470A (en) 1977-03-29
DE2452560A1 (en) 1975-07-03
IS957B6 (en) 1977-01-31
JPS5738478B2 (en) 1982-08-16
NL174970C (en) 1984-09-03
DK154697B (en) 1988-12-12
DE2452560C2 (en) 1982-09-23
NO139040B (en) 1978-09-18
NO149321C (en) 1984-03-28
NO802824L (en) 1975-06-24
US3872679A (en) 1975-03-25
DK154697C (en) 1989-05-08
DK610174A (en) 1975-09-01
NO149321B (en) 1983-12-19
NO744625L (en) 1975-07-21
NO139040C (en) 1978-12-27
IS2242A7 (en) 1975-06-22
NL7416596A (en) 1975-06-24
JPS5095990A (en) 1975-07-30
NL174970B (en) 1984-04-02
FR2255426A1 (en) 1975-07-18
FR2255426B1 (en) 1982-05-07

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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

Effective date: 19921115