AU2670400A - Drillstring bypass valve - Google Patents

Drillstring bypass valve

Info

Publication number
AU2670400A
AU2670400A AU26704/00A AU2670400A AU2670400A AU 2670400 A AU2670400 A AU 2670400A AU 26704/00 A AU26704/00 A AU 26704/00A AU 2670400 A AU2670400 A AU 2670400A AU 2670400 A AU2670400 A AU 2670400A
Authority
AU
Australia
Prior art keywords
drillstring
bypass valve
bypass
valve
drillstring bypass
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU26704/00A
Inventor
Peter Airey
Mark Andrea
Michel Galbrun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sofitech NV
Original Assignee
Sofitech NV
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 Sofitech NV filed Critical Sofitech NV
Publication of AU2670400A publication Critical patent/AU2670400A/en
Abandoned legal-status Critical Current

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)
  • 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)
AU26704/00A 1999-02-03 2000-02-04 Drillstring bypass valve Abandoned AU2670400A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9902342 1999-02-03
GB9902342A GB2346397A (en) 1999-02-03 1999-02-03 Annulus pressure activated discharge valve for enhanced fluid return flow
PCT/EP2000/000945 WO2000046480A1 (en) 1999-02-03 2000-02-02 Drillstring bypass valve

Publications (1)

Publication Number Publication Date
AU2670400A true AU2670400A (en) 2000-08-25

Family

ID=10846999

Family Applications (1)

Application Number Title Priority Date Filing Date
AU26704/00A Abandoned AU2670400A (en) 1999-02-03 2000-02-04 Drillstring bypass valve

Country Status (3)

Country Link
AU (1) AU2670400A (en)
GB (1) GB2346397A (en)
WO (1) WO2000046480A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2305667A1 (en) * 1975-03-27 1976-10-22 Tiraspolsky Wladimir COMBINED DISCHARGE VALVE FOR SOIL DRILLING EQUIPMENT
US4361193A (en) * 1980-11-28 1982-11-30 Mobil Oil Corporation Method and arrangement for improving cuttings removal and reducing differential pressure sticking of drill strings in wellbores
US4645006A (en) * 1984-12-07 1987-02-24 Tinsley Paul J Annulus access valve system
US4817739A (en) * 1986-06-23 1989-04-04 Jeter John D Drilling enhancement tool
GB8802498D0 (en) * 1988-02-04 1988-03-02 Hy Ram Eng Co Ltd Improvements relating to valves
FR2659384B1 (en) * 1990-03-07 1995-09-15 Ungemach Pierre DEVICE FOR CURING AND CLEANING WELLS AFFECTED BY DEPOSITS AND INCRUSTATIONS.

Also Published As

Publication number Publication date
WO2000046480A1 (en) 2000-08-10
GB9902342D0 (en) 1999-03-24
GB2346397A (en) 2000-08-09

Similar Documents

Publication Publication Date Title
AU6169800A (en) Downhole bypass valve
AU1768001A (en) Downhole valve
AU2833900A (en) Multi-purpose valve
AU9360698A (en) Downhole valve
AU2729500A (en) Valves for use in wells
AU3597900A (en) Extended range proportional valve
EP0934757A3 (en) Check valve
AU5173300A (en) One way anti-backflow valve
EP1108867A3 (en) Three-way valve
AUPQ121099A0 (en) Diverter valve/filter and downpipe filter
AU3775200A (en) Construction element
AU6984800A (en) Valve
AU3605599A (en) Catheter valve
AU5257800A (en) Rotary valve systems
AU6712100A (en) Control valve unit
AU2670400A (en) Drillstring bypass valve
AU6007700A (en) Valve actuator
AU2110200A (en) Covering element for open bodies
AU1184700A (en) Phaser
AU2303799A (en) Valve
AU1520601A (en) Antifungal sordaricin derivatives
AU6835600A (en) Improved valve
AU7645600A (en) Check valve
AU4601000A (en) Stop valve
AU2303899A (en) Valve

Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase