NO934681L - Overflatekontroll av brönn-ringromtrykk - Google Patents

Overflatekontroll av brönn-ringromtrykk

Info

Publication number
NO934681L
NO934681L NO934681A NO934681A NO934681L NO 934681 L NO934681 L NO 934681L NO 934681 A NO934681 A NO 934681A NO 934681 A NO934681 A NO 934681A NO 934681 L NO934681 L NO 934681L
Authority
NO
Norway
Prior art keywords
pressure
well
annulus
inlet
outlet
Prior art date
Application number
NO934681A
Other languages
English (en)
Other versions
NO934681D0 (no
Inventor
Roger L Schultz
Original Assignee
Halliburton 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 Halliburton Co filed Critical Halliburton Co
Publication of NO934681D0 publication Critical patent/NO934681D0/no
Publication of NO934681L publication Critical patent/NO934681L/no

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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/16—Control means therefor being outside the borehole

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)
  • Control Of Fluid Pressure (AREA)

Abstract

Et system til styring av ringromtrykk er beregnet på å styre ringromtrykket i en brønn (10) ved å føre fjernsendte kommandosignaler til et nedsenket verktøy (34, 36, 42) i brønnen (10). Brønnen (10) er tilsluttet en høyttrykkskilde (48) og en lavtrykks-avløpssone (50). Systemet innbefatter minst en styreventil (62) med et innløp (64) og et utløp (66) med en variabel strømningsbegrensning (86, 94) liggende mellom innløpet og utløpet. Enten innløpet (64) eller utløpet (66) er forbundet med brønnens ringrom (30), og enten innløpet (64) eller utløpet (66) er forbundet med enten høyttrykkskilden (48) eller lavtrykks-avløpssonen (60). En trykkføler (146) er anordnet for å frembringe et trykksignal som representerer ringromtrykket. En styreanordning (68) har lagret informasjoner som beskriver det kommandosignal som skal tilføres brønnen (10) og som innbefatter minst en forandring i ringromtrykket. Styreanordningen (68) mottatt trykksignalet fra trykkføleren (146) og bestemmer innstilling av den variable strømningsbegrensning (86, 94) i styreventilen (62) som reaksjon på trykksignalet og på den lagrede informasjon og vil derved føre det ønskede kommandosignal til brønnens ringrom (30).
NO934681A 1992-12-18 1993-12-17 Overflatekontroll av brönn-ringromtrykk NO934681L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/993,950 US5273112A (en) 1992-12-18 1992-12-18 Surface control of well annulus pressure

Publications (2)

Publication Number Publication Date
NO934681D0 NO934681D0 (no) 1993-12-17
NO934681L true NO934681L (no) 1994-06-20

Family

ID=25540126

Family Applications (1)

Application Number Title Priority Date Filing Date
NO934681A NO934681L (no) 1992-12-18 1993-12-17 Overflatekontroll av brönn-ringromtrykk

Country Status (6)

Country Link
US (1) US5273112A (no)
EP (1) EP0604134B1 (no)
AU (1) AU5250393A (no)
CA (1) CA2111736C (no)
DE (1) DE69312448D1 (no)
NO (1) NO934681L (no)

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Also Published As

Publication number Publication date
CA2111736A1 (en) 1994-06-19
EP0604134A1 (en) 1994-06-29
DE69312448D1 (de) 1997-09-04
NO934681D0 (no) 1993-12-17
AU5250393A (en) 1994-06-30
EP0604134B1 (en) 1997-07-23
CA2111736C (en) 1997-01-28
US5273112A (en) 1993-12-28

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