CA967550A - Method and apparatus for controlling hydrostatic pressure gradient in offshore drilling operations - Google Patents

Method and apparatus for controlling hydrostatic pressure gradient in offshore drilling operations

Info

Publication number
CA967550A
CA967550A CA158,880A CA158880A CA967550A CA 967550 A CA967550 A CA 967550A CA 158880 A CA158880 A CA 158880A CA 967550 A CA967550 A CA 967550A
Authority
CA
Canada
Prior art keywords
hydrostatic pressure
pressure gradient
drilling operations
offshore drilling
controlling hydrostatic
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
CA158,880A
Other versions
CA158880S (en
Inventor
George H. Bruce
William T. Ilfrey
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.)
ExxonMobil Upstream Research Co
Original Assignee
Exxon Production 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 Exxon Production Research Co filed Critical Exxon Production Research Co
Application granted granted Critical
Publication of CA967550A publication Critical patent/CA967550A/en
Expired 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/12—Underwater drilling
    • E21B7/128—Underwater drilling from floating support with independent underwater anchored guide base
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/001—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor specially adapted for underwater drilling
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
CA158,880A 1972-02-16 1972-12-14 Method and apparatus for controlling hydrostatic pressure gradient in offshore drilling operations Expired CA967550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00226843A US3815673A (en) 1972-02-16 1972-02-16 Method and apparatus for controlling hydrostatic pressure gradient in offshore drilling operations

Publications (1)

Publication Number Publication Date
CA967550A true CA967550A (en) 1975-05-13

Family

ID=22850648

Family Applications (1)

Application Number Title Priority Date Filing Date
CA158,880A Expired CA967550A (en) 1972-02-16 1972-12-14 Method and apparatus for controlling hydrostatic pressure gradient in offshore drilling operations

Country Status (2)

Country Link
US (1) US3815673A (en)
CA (1) CA967550A (en)

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Also Published As

Publication number Publication date
US3815673A (en) 1974-06-11

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