NO20082813L - Nedihullsverktoy - Google Patents

Nedihullsverktoy

Info

Publication number
NO20082813L
NO20082813L NO20082813A NO20082813A NO20082813L NO 20082813 L NO20082813 L NO 20082813L NO 20082813 A NO20082813 A NO 20082813A NO 20082813 A NO20082813 A NO 20082813A NO 20082813 L NO20082813 L NO 20082813L
Authority
NO
Norway
Prior art keywords
downhole tool
tool
restriction
induce
activating
Prior art date
Application number
NO20082813A
Other languages
English (en)
Inventor
Andrew Philip Churchill
Original Assignee
Churchill Drilling Tools 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
Priority claimed from GB0523841A external-priority patent/GB0523841D0/en
Priority claimed from GB0607412A external-priority patent/GB0607412D0/en
Application filed by Churchill Drilling Tools Ltd filed Critical Churchill Drilling Tools Ltd
Publication of NO20082813L publication Critical patent/NO20082813L/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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • E21B21/103—Down-hole by-pass valve arrangements, i.e. between the inside of the drill string and the annulus
    • 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
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • 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
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
    • E21B34/142—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools unsupported or free-falling elements, e.g. balls, plugs, darts or pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (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)
  • Lift Valve (AREA)
  • Earth Drilling (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

Fremgangsmåte for å aktivere et verktøy (800) i en nedihulls streng omfatter å anvende en strømningsrestriksjon, som for eksempel en tilbakeslagsventil (912) som gir mindre restriksjon mot fluidstrømning i den normale retning for å indusere en omvendt trykkforskjell for å tillate aktivering av verktøyet (800).
NO20082813A 2005-11-24 2008-06-23 Nedihullsverktoy NO20082813L (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0523841A GB0523841D0 (en) 2005-11-24 2005-11-24 Downhole tool
GB0607412A GB0607412D0 (en) 2006-04-13 2006-04-13 Downhole tool
PCT/GB2006/004400 WO2007060449A2 (en) 2005-11-24 2006-11-24 Downhole tool

Publications (1)

Publication Number Publication Date
NO20082813L true NO20082813L (no) 2008-08-12

Family

ID=37735077

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20082813A NO20082813L (no) 2005-11-24 2008-06-23 Nedihullsverktoy

Country Status (6)

Country Link
US (1) US20090056952A1 (no)
EP (1) EP1951988A2 (no)
AU (1) AU2006318890A1 (no)
CA (1) CA2630916A1 (no)
NO (1) NO20082813L (no)
WO (1) WO2007060449A2 (no)

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US9920587B2 (en) * 2014-01-23 2018-03-20 Halliburton Energy Services, Inc. Testable isolation packer
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Also Published As

Publication number Publication date
AU2006318890A1 (en) 2007-05-31
WO2007060449A3 (en) 2007-07-26
EP1951988A2 (en) 2008-08-06
US20090056952A1 (en) 2009-03-05
CA2630916A1 (en) 2007-05-31
WO2007060449A2 (en) 2007-05-31

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