NO20004367L - Borehullsavlederverktöy - Google Patents

Borehullsavlederverktöy

Info

Publication number
NO20004367L
NO20004367L NO20004367A NO20004367A NO20004367L NO 20004367 L NO20004367 L NO 20004367L NO 20004367 A NO20004367 A NO 20004367A NO 20004367 A NO20004367 A NO 20004367A NO 20004367 L NO20004367 L NO 20004367L
Authority
NO
Norway
Prior art keywords
tool
fluid
bore
face
concave end
Prior art date
Application number
NO20004367A
Other languages
Norwegian (no)
Other versions
NO20004367D0 (en
Inventor
Karl Schmidt
Arthur Deacey Stewart
Mark William Craig
Original Assignee
Stable Services 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
Application filed by Stable Services Ltd filed Critical Stable Services Ltd
Publication of NO20004367D0 publication Critical patent/NO20004367D0/en
Publication of NO20004367L publication Critical patent/NO20004367L/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
    • E21B21/103—Down-hole by-pass valve arrangements, i.e. between the inside of the drill string and the annulus

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)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling Tools (AREA)
  • Multiple-Way Valves (AREA)
  • Earth Drilling (AREA)

Abstract

Et nedihulls-fluidavlederverktøy har en aksial, gjennomgående boring (13) og fluidpassasjer (38, 44) som strekker seg gjennom verktøyets sidevegg. Normalt lukkede, trykkpåvirkede ventilanordninger (20) er beliggende i fluidpassasjene, slik at en del av en strøm av borefluid som passerer gjennom det sylindriske legeme (12), kan avledes gjennom fluidpassasjene ved økning av fluidtrykket i det indre av verktøyet, slik at ventilanordningene (20) åpnes. Hver ventilanordning (20) omfatter en stempeldel (28) som rommes i sideveggen og er bevegelig i en retning parallelt med verktøyets lengdeakse, for å åpne og lukke fluidpassasjen (38,44). Hver stempeldel (28) er glidbart anbrakt i en boring (34) som strekker seg parallelt med verktøyets lengdeakse, idet boringen (34) har en konkav endeflate (36), idet fluidpassasjen (38, 44) skjærer den konkave endeflate, idet stempeldelen (28) har en stort sett konveks, komplementær endeflate (52) som er tilpasset til å ligge an mot den konkave endeflate (36) for å lukke fluidpassasjen (38, 44), og idet ventil- anordningen (20) videre omfatter en forspennings- anordning (32) for å presse stempelets konvekse endeflate (52) til inngrep med boringens (34) konkave endeflate (36). Ventilanordningen (20) omfatter en hus (26) som er tilpasset til å anbringes i en lomme (22) som er dannet i verktøylegemets (12) ytre overflate.A downhole fluid deflector tool has an axial, through bore (13) and fluid passages (38, 44) extending through the tool sidewall. Normally closed, pressurized valve means (20) are located in the fluid passages so that a portion of a flow of drilling fluid passing through the cylindrical body (12) can be diverted through the fluid passages by increasing the fluid pressure within the tool, such that the valve means ( 20) opens. Each valve assembly (20) comprises a piston member (28) which is accommodated in the sidewall and is movable in a direction parallel to the longitudinal axis of the tool, to open and close the fluid passage (38, 44). Each piston member (28) is slidably disposed in a bore (34) extending parallel to the longitudinal axis of the tool, the bore (34) having a concave end face (36), the fluid passage (38, 44) intersecting the concave end face, the piston member ( 28) has a generally convex, complementary end surface (52) adapted to abut against the concave end surface (36) to close the fluid passage (38, 44), and the valve means (20) further comprising a biasing means. means (32) for pressing the convex end face (52) of the piston to engage the concave end face (36) of the bore (34). The valve assembly (20) comprises a housing (26) adapted to be placed in a pocket (22) formed in the outer surface of the tool body (12).

NO20004367A 1999-09-03 2000-09-01 Borehullsavlederverktöy NO20004367L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9920731.8A GB9920731D0 (en) 1999-09-03 1999-09-03 Downhole diverter tools

Publications (2)

Publication Number Publication Date
NO20004367D0 NO20004367D0 (en) 2000-09-01
NO20004367L true NO20004367L (en) 2001-03-05

Family

ID=10860208

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20004367A NO20004367L (en) 1999-09-03 2000-09-01 Borehullsavlederverktöy

Country Status (3)

Country Link
EP (1) EP1081330A3 (en)
GB (1) GB9920731D0 (en)
NO (1) NO20004367L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO313430B1 (en) * 2000-10-02 2002-09-30 Bernt Reinhardt Pedersen Downhole valve assembly
FR2845726B1 (en) 2002-10-10 2005-01-21 Schlumberger Services Petrol DEVICE FOR ADJUSTING FLOW THROUGH A PRODUCTION TUBE PLACED IN A PETROLEUM WELL
US10138695B2 (en) 2014-06-30 2018-11-27 Halliburton Energy Services, Inc. Downhole fluid flow diverting
CN104153730B (en) * 2014-07-23 2016-07-06 中国石油大学(华东) A kind of drilling tool cleaning well

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334697A (en) * 1964-11-09 1967-08-08 Tenneco Inc Jet sub for drilling well bores
US4834193A (en) * 1987-12-22 1989-05-30 Gas Research Institute Earth boring apparatus and method with control valve
US5407020A (en) * 1993-04-26 1995-04-18 B.J.S. Systems, Inc. Pneumatic drilling chip removal system and method
GB9415500D0 (en) * 1994-08-01 1994-09-21 Stewart Arthur D Erosion resistant downhole diverter tools

Also Published As

Publication number Publication date
GB9920731D0 (en) 1999-11-03
NO20004367D0 (en) 2000-09-01
EP1081330A3 (en) 2001-05-02
EP1081330A2 (en) 2001-03-07

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application