GB1402452A - Marine platform with curved support leg - Google Patents

Marine platform with curved support leg

Info

Publication number
GB1402452A
GB1402452A GB3772472A GB3772472A GB1402452A GB 1402452 A GB1402452 A GB 1402452A GB 3772472 A GB3772472 A GB 3772472A GB 3772472 A GB3772472 A GB 3772472A GB 1402452 A GB1402452 A GB 1402452A
Authority
GB
United Kingdom
Prior art keywords
pile
leg
piles
shell
curved
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
GB3772472A
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.)
Texaco Development Corp
Original Assignee
Texaco Development Corp
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 Texaco Development Corp filed Critical Texaco Development Corp
Priority to GB3772472A priority Critical patent/GB1402452A/en
Publication of GB1402452A publication Critical patent/GB1402452A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00Supports for the drilling machine, e.g. derricks or masts
    • E21B15/04Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00Supports for the drilling machine, e.g. derricks or masts
    • E21B15/003Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/04Directional drilling
    • E21B7/06Deflecting the direction of boreholes

Abstract

1402452 Boring earth etc; offshore structures TEXACO DEVELOPMENT CORP 12 Aug 1972 37724/72 Headings E1F and EIH A marine platform for drilling wells into the ocean floor has a curved leg 16 which is held substantially vertically at its upper end and which is provided with channels for piles 21 and drill strings 42, Fig. 5. The platform may be supported by a plurality of such curved legs 16 together with one or more straight legs 17, Fig. 1. Each curved leg 16 comprises an outer cylindrical casing 18, an inner cylindrical shell 19, and a plurality of pile guides 32, 33 positioned in the annulus therebetween. The pile guides are both longitudinally spaced along the leg and peripherally spaced about the shell 19. Each pile guide is provided with a guide shoe 28, to assist in guiding the piles 21 through the leg. When the piles are positioned in the substrate, they are retained in position by pumping fluidized cement through conduits 36 and 39 into the space 20 between the casing and the shell, a fluid seal in the form of a resilient ring 40 being provided between the pile guide and the pile.
GB3772472A 1972-08-12 1972-08-12 Marine platform with curved support leg Expired GB1402452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3772472A GB1402452A (en) 1972-08-12 1972-08-12 Marine platform with curved support leg

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3772472A GB1402452A (en) 1972-08-12 1972-08-12 Marine platform with curved support leg

Publications (1)

Publication Number Publication Date
GB1402452A true GB1402452A (en) 1975-08-06

Family

ID=10398587

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3772472A Expired GB1402452A (en) 1972-08-12 1972-08-12 Marine platform with curved support leg

Country Status (1)

Country Link
GB (1) GB1402452A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174133A (en) * 1985-04-19 1986-10-29 Bechtel Great Britain Limited Compliant jacket for offshore drilling and production platform
GB2186901A (en) * 1986-02-24 1987-08-26 British Gas Plc Marine structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174133A (en) * 1985-04-19 1986-10-29 Bechtel Great Britain Limited Compliant jacket for offshore drilling and production platform
GB2174133B (en) * 1985-04-19 1989-07-19 Bechtel Great Britain Limited Compliant jacket for offshore drilling and production platform
GB2186901A (en) * 1986-02-24 1987-08-26 British Gas Plc Marine structure
GB2186901B (en) * 1986-02-24 1990-05-02 British Gas Plc Offshore platforms
US4969776A (en) * 1986-02-24 1990-11-13 British Gas Plc Offshore platforms

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Legal Events

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