FR2333939A1 - Offshore drilling plant - with underwater platform on structure with drill guide tubes linked by flexible joint and tube to working deck - Google Patents

Offshore drilling plant - with underwater platform on structure with drill guide tubes linked by flexible joint and tube to working deck

Info

Publication number
FR2333939A1
FR2333939A1 FR7636340A FR7636340A FR2333939A1 FR 2333939 A1 FR2333939 A1 FR 2333939A1 FR 7636340 A FR7636340 A FR 7636340A FR 7636340 A FR7636340 A FR 7636340A FR 2333939 A1 FR2333939 A1 FR 2333939A1
Authority
FR
France
Prior art keywords
tube
flexible joint
platform
working deck
offshore drilling
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.)
Withdrawn
Application number
FR7636340A
Other languages
French (fr)
Inventor
Geoffrey Eke Downs
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.)
WILSON WALTON ENG Ltd
Original Assignee
WILSON WALTON ENG Ltd
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 WILSON WALTON ENG Ltd filed Critical WILSON WALTON ENG Ltd
Publication of FR2333939A1 publication Critical patent/FR2333939A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • E21B43/017Production satellite stations, i.e. underwater installations comprising a plurality of satellite well heads connected to a central station

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

An offshore drilling for oil or natural gas has between the water level and the sea bottom (at a water depth of 200-300 feet) a platform which rests on a structure of vertical tubes (four) which are braced and are anchored with their feet in the seabed. The platform contains Christmas tree structures above each tube so that the latter can be used as guides for the drilling of nests of wells. A single large-dia. tube with a conical bottom to suit the platform dia. links the latter to the working deck above water level through a flexible joint. This keeps stresses by tides, waves and wind away from the support structure. The structure also serves as a template to sink the wells in the desired pattern.
FR7636340A 1975-12-05 1976-12-02 Offshore drilling plant - with underwater platform on structure with drill guide tubes linked by flexible joint and tube to working deck Withdrawn FR2333939A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5008775 1975-12-05

Publications (1)

Publication Number Publication Date
FR2333939A1 true FR2333939A1 (en) 1977-07-01

Family

ID=10454601

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7636340A Withdrawn FR2333939A1 (en) 1975-12-05 1976-12-02 Offshore drilling plant - with underwater platform on structure with drill guide tubes linked by flexible joint and tube to working deck

Country Status (8)

Country Link
JP (1) JPS5269801A (en)
AU (1) AU1994976A (en)
DE (1) DE2652080A1 (en)
ES (1) ES453939A1 (en)
FR (1) FR2333939A1 (en)
IT (1) IT1065948B (en)
NL (1) NL7613438A (en)
NO (1) NO763920L (en)

Also Published As

Publication number Publication date
ES453939A1 (en) 1977-11-16
JPS5269801A (en) 1977-06-10
NO763920L (en) 1977-06-07
NL7613438A (en) 1977-06-07
AU1994976A (en) 1978-06-01
DE2652080A1 (en) 1977-06-16
IT1065948B (en) 1985-03-04

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Legal Events

Date Code Title Description
ST Notification of lapse