GB1078607A - Offshore drilling or similar platform - Google Patents

Offshore drilling or similar platform

Info

Publication number
GB1078607A
GB1078607A GB9566A GB9566A GB1078607A GB 1078607 A GB1078607 A GB 1078607A GB 9566 A GB9566 A GB 9566A GB 9566 A GB9566 A GB 9566A GB 1078607 A GB1078607 A GB 1078607A
Authority
GB
United Kingdom
Prior art keywords
columns
pontoon
valves
sea
legs
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
GB9566A
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.)
WERF GUSTO V H A F SMULDERS FA
Original Assignee
WERF GUSTO V H A F SMULDERS FA
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 WERF GUSTO V H A F SMULDERS FA filed Critical WERF GUSTO V H A F SMULDERS FA
Publication of GB1078607A publication Critical patent/GB1078607A/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
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
    • E02B17/0836—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks
    • E02B17/0863—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with climbing jacks with rack and pawl mechanism
    • 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
    • E02B17/024—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 shock absorbing means for the supporting construction
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D23/00—Caissons; Construction or placing of caissons
    • E02D23/08—Lowering or sinking caissons

Abstract

1,078,607. Offshore platforms. WERF GUSTO V'H FIRMA A.F. SMULDERS N.V. Jan. 3, 1966 [Jan. 8, 1965], No. 95/66. Heading E1H. An offshore drilling platform consists of a pontoon 1 and a number of columns or legs 3 which can be displaced vertically through openings 2 relative to the pontoon 1 by doubleacting hydraulic jacks 7 which engage recesses 4 of the columns 3 by locking members 5, while further locking members 9 lock the columns 3 relative to the pontoon. The liquid chambers 12 and 13 on either side of the piston 10 of each of the hydraulic jacks are interconnected via the conduit (23) which includes adjustable shut-off valves (24), (25), Fig. 3 (not shown) and with which an expansion tank (30) is connected. The conduit (23) incorporates non-return valves (26), (27) parallel to the shutoff valves (24), (25) in such a way that, as the pontoon 1 moves upwards relative to the columns 3 in each jack the liquid can freely flow from chamber 13, then becoming smaller, towards chamber 12 which is growing larger, but not the other way round. By means of the shut-off valves it is possible to damp the movement of the pontoon due to surge of the sea as the columns or legs are lowered rapidly to the sea-bed, the expansion tank (30) being required in connection with the difference in volume on either side of the pistons 10 in the jacks. During and after the lowering of the legs their bumping on the sea-bed is avoided. The duplication of the shut-off valves (24), (25) and the opposite directions of the non-return valves (26), (27) enable use to be made of the surge of the sea in clearing the legs from the seabed.
GB9566A 1965-01-08 1966-01-03 Offshore drilling or similar platform Expired GB1078607A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6500205A NL142746B (en) 1965-01-08 1965-01-08 DRILLING ISLAND OR SIMILAR PLATFORM.

Publications (1)

Publication Number Publication Date
GB1078607A true GB1078607A (en) 1967-08-09

Family

ID=19792074

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9566A Expired GB1078607A (en) 1965-01-08 1966-01-03 Offshore drilling or similar platform

Country Status (5)

Country Link
BE (1) BE674743A (en)
DE (1) DE1252393B (en)
FR (1) FR1463297A (en)
GB (1) GB1078607A (en)
NL (1) NL142746B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009576A1 (en) * 1978-09-29 1980-04-16 Deutsche Babcock Aktiengesellschaft Raisable island
US4199276A (en) * 1977-08-16 1980-04-22 Howaldtswerke-Deutsche Werft Aktiengesellschaft Hamburg Und Kiel Offshore lift platform
GB2335181A (en) * 1998-03-13 1999-09-15 Resource Marginal Systems Ltd Travelling jacking arrangement for offshore platform
CN115492144A (en) * 2022-09-15 2022-12-20 中国一冶集团有限公司 Construction method of pipe jacking and open caisson in sandbank area

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7713674A (en) * 1977-12-09 1979-06-12 Stevin Baggeren Bv WORK PLATFORM.
NL7902748A (en) * 1979-04-06 1980-10-08 Rsv Gusto Eng Bv Device for generating a relative linear displacement between a number of columns and a movable body.
DE3008585A1 (en) * 1980-03-06 1981-09-17 Deutsche Babcock Ag, 4200 Oberhausen DEVICE FOR LIFTING AND LOWERING A FLOATING OFFSHORE PLATFORM
FR2496624A1 (en) * 1980-12-23 1982-06-25 Bretagne Atel Chantiers DEVICE FOR SHOCK ABSORBING BETWEEN A LOAD AND A FLOATING SUPPORT AT THE TIME OF REMOVAL OF THE LOAD

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199276A (en) * 1977-08-16 1980-04-22 Howaldtswerke-Deutsche Werft Aktiengesellschaft Hamburg Und Kiel Offshore lift platform
EP0009576A1 (en) * 1978-09-29 1980-04-16 Deutsche Babcock Aktiengesellschaft Raisable island
GB2335181A (en) * 1998-03-13 1999-09-15 Resource Marginal Systems Ltd Travelling jacking arrangement for offshore platform
CN115492144A (en) * 2022-09-15 2022-12-20 中国一冶集团有限公司 Construction method of pipe jacking and open caisson in sandbank area
CN115492144B (en) * 2022-09-15 2023-08-29 中国一冶集团有限公司 Construction method of pipe-jacking open caisson in sand area

Also Published As

Publication number Publication date
NL6500205A (en) 1966-07-11
NL142746B (en) 1974-07-15
BE674743A (en) 1966-05-03
FR1463297A (en) 1966-12-23
DE1252393B (en) 1967-10-19

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