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FR2384669A1 - Construction sous-marine munie de ballasts - Google Patents

Construction sous-marine munie de ballasts

Info

Publication number
FR2384669A1
FR2384669A1 FR7808452A FR7808452A FR2384669A1 FR 2384669 A1 FR2384669 A1 FR 2384669A1 FR 7808452 A FR7808452 A FR 7808452A FR 7808452 A FR7808452 A FR 7808452A FR 2384669 A1 FR2384669 A1 FR 2384669A1
Authority
FR
France
Prior art keywords
ballasts
discharge port
permanent
ballast
construction equipped
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Withdrawn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
FR7808452A
Other languages
English (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.)
MARCON INGBUREAU
Original Assignee
MARCON INGBUREAU
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 MARCON INGBUREAU filed Critical MARCON INGBUREAU
Publication of FR2384669A1 publication Critical patent/FR2384669A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • E21B17/012—Risers with buoyancy elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/10—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Artificial Fish Reefs (AREA)
  • Physical Water Treatments (AREA)
  • Pipeline Systems (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

Construction sous-marine permanente ou semi-permanente comportant un ou plusieurs réservoirs agissant en tant que ballasts pour appliquer une poussée à ladite structure, comportant des moyens pour introduire un gaz sous pression tel que de l'air dans ces ballasts pour chasser l'eau à travers l'orifice d'évacuation se trouvant près du fond du ballast, caractérisée en ce que l'orifice d'évacuation de l'eau est formé à l'extrémité ouverte inférieure d'un siphon qui s'étend entre un point se trouvant à l'extérieur du ballast considéré jusqu'à un point situé près du fond de ce dernier où il forme un orifice de refoulement
FR7808452A 1977-03-23 1978-03-23 Construction sous-marine munie de ballasts Withdrawn FR2384669A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7703152A NL7703152A (nl) 1977-03-23 1977-03-23 Permanente of semi-permanente onderwatercon- structie met blaastanks.

Publications (1)

Publication Number Publication Date
FR2384669A1 true FR2384669A1 (fr) 1978-10-20

Family

ID=19828217

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7808452A Withdrawn FR2384669A1 (fr) 1977-03-23 1978-03-23 Construction sous-marine munie de ballasts

Country Status (11)

Country Link
JP (1) JPS53119418A (fr)
BE (1) BE865199A (fr)
DE (1) DE2812931A1 (fr)
DK (1) DK130178A (fr)
ES (1) ES468184A1 (fr)
FR (1) FR2384669A1 (fr)
GB (1) GB1586993A (fr)
NL (1) NL7703152A (fr)
NO (1) NO780994L (fr)
PT (1) PT67810A (fr)
SE (1) SE7803192L (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855656A (en) * 1973-03-30 1974-12-24 Amoco Prod Co Underwater buoy for a riser pipe
US3992889A (en) * 1975-06-09 1976-11-23 Regan Offshore International, Inc. Flotation means for subsea well riser

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855656A (en) * 1973-03-30 1974-12-24 Amoco Prod Co Underwater buoy for a riser pipe
US3992889A (en) * 1975-06-09 1976-11-23 Regan Offshore International, Inc. Flotation means for subsea well riser

Also Published As

Publication number Publication date
ES468184A1 (es) 1978-11-16
NL7703152A (nl) 1978-09-26
SE7803192L (sv) 1978-09-24
PT67810A (en) 1978-04-01
NO780994L (no) 1978-09-26
DK130178A (da) 1978-09-24
BE865199A (fr) 1978-09-22
JPS53119418A (en) 1978-10-18
GB1586993A (en) 1981-03-25
DE2812931A1 (de) 1978-10-05

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Legal Events

Date Code Title Description
ST Notification of lapse