SE8405848L - REAR VALVE DEVICE AT A DRILL PLANT - Google Patents

REAR VALVE DEVICE AT A DRILL PLANT

Info

Publication number
SE8405848L
SE8405848L SE8405848A SE8405848A SE8405848L SE 8405848 L SE8405848 L SE 8405848L SE 8405848 A SE8405848 A SE 8405848A SE 8405848 A SE8405848 A SE 8405848A SE 8405848 L SE8405848 L SE 8405848L
Authority
SE
Sweden
Prior art keywords
drill
valve device
rear valve
tube
fluid
Prior art date
Application number
SE8405848A
Other languages
Swedish (sv)
Other versions
SE8405848D0 (en
Inventor
C Strindberg
Original Assignee
Tgb Utvecklings Ab
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 Tgb Utvecklings Ab filed Critical Tgb Utvecklings Ab
Priority to SE8405848A priority Critical patent/SE8405848L/en
Publication of SE8405848D0 publication Critical patent/SE8405848D0/en
Publication of SE8405848L publication Critical patent/SE8405848L/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

The valve element is part of the drill tube which is one of a string through which the drilling fluid passes. The element is able to move between a closed position (I) and an open position (II). The fluid is typically compressed air. - The valve arrangement is coupled to the tube. The drill fluid passes through the space to the drill. The fluid flows out through the passages to the drill tube space.
SE8405848A 1984-11-21 1984-11-21 REAR VALVE DEVICE AT A DRILL PLANT SE8405848L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8405848A SE8405848L (en) 1984-11-21 1984-11-21 REAR VALVE DEVICE AT A DRILL PLANT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8405848A SE8405848L (en) 1984-11-21 1984-11-21 REAR VALVE DEVICE AT A DRILL PLANT

Publications (2)

Publication Number Publication Date
SE8405848D0 SE8405848D0 (en) 1984-11-21
SE8405848L true SE8405848L (en) 1986-05-22

Family

ID=20357835

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8405848A SE8405848L (en) 1984-11-21 1984-11-21 REAR VALVE DEVICE AT A DRILL PLANT

Country Status (1)

Country Link
SE (1) SE8405848L (en)

Also Published As

Publication number Publication date
SE8405848D0 (en) 1984-11-21

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Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8405848-6

Effective date: 19890601