NO20090675L - Fremgangsmate for romming ved tildannelse av en bronn - Google Patents

Fremgangsmate for romming ved tildannelse av en bronn

Info

Publication number
NO20090675L
NO20090675L NO20090675A NO20090675A NO20090675L NO 20090675 L NO20090675 L NO 20090675L NO 20090675 A NO20090675 A NO 20090675A NO 20090675 A NO20090675 A NO 20090675A NO 20090675 L NO20090675 L NO 20090675L
Authority
NO
Norway
Prior art keywords
bit
hole
determining
linearly
escaping
Prior art date
Application number
NO20090675A
Other languages
English (en)
Other versions
NO338106B1 (no
Inventor
William Leo Koederitz
Michael Nathan Porche
Randall C Thomas
Original Assignee
Nat Oilwell Varco Lp
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 Nat Oilwell Varco Lp filed Critical Nat Oilwell Varco Lp
Publication of NO20090675L publication Critical patent/NO20090675L/no
Publication of NO338106B1 publication Critical patent/NO338106B1/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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed
    • 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
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

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)
  • Drilling And Boring (AREA)

Abstract

Fremgangsmåter og systemer for å styre bevegelsen av en borekrone i en boresammenstilling under rømming av et allerede boret hull; hvor fremgangsmåtene, ved visse aspekter, omfatter: - å bestemme en rømmehastighet for nedoverrettet bevegelse av borekronen i hullet; - å bevege borekronen nedover i hullet ved nevnte rømmehastighet; - å bestemme et tidsrom for retardasjon av borekronen til hullbunnen; - å bestemme en verdi for en målboreparameter for boring forbi bunnen av hullet; - å retardere borekronen (lineært eller ikke-lineært) i tidsrommet; og - å oppnå verdien for målboreparameteren når borekronen når bunnen av hullet.
NO20090675A 2006-08-31 2009-02-12 Fremgangsmåte og system for styring av bevegelse av en borekrone ved rømming av et hull NO338106B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/514,384 US7422076B2 (en) 2003-12-23 2006-08-31 Autoreaming systems and methods
PCT/GB2007/050517 WO2008026011A1 (en) 2006-08-31 2007-08-31 A method for reaming in the construction of a well

Publications (2)

Publication Number Publication Date
NO20090675L true NO20090675L (no) 2009-05-28
NO338106B1 NO338106B1 (no) 2016-08-01

Family

ID=38577570

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20090675A NO338106B1 (no) 2006-08-31 2009-02-12 Fremgangsmåte og system for styring av bevegelse av en borekrone ved rømming av et hull

Country Status (6)

Country Link
US (1) US7422076B2 (no)
EP (1) EP2057344B1 (no)
AT (1) ATE509180T1 (no)
CA (1) CA2661851C (no)
NO (1) NO338106B1 (no)
WO (1) WO2008026011A1 (no)

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Also Published As

Publication number Publication date
CA2661851A1 (en) 2008-03-06
US7422076B2 (en) 2008-09-09
EP2057344A1 (en) 2009-05-13
NO338106B1 (no) 2016-08-01
WO2008026011A1 (en) 2008-03-06
US20070056772A1 (en) 2007-03-15
ATE509180T1 (de) 2011-05-15
EP2057344B1 (en) 2011-05-11
CA2661851C (en) 2012-06-12

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