SE9200730D0 - MADE TO DRAW BETWEEN LINING RODS AND BORAL REMOVAL DEVICE FOR IMPLEMENTATION - Google Patents

MADE TO DRAW BETWEEN LINING RODS AND BORAL REMOVAL DEVICE FOR IMPLEMENTATION

Info

Publication number
SE9200730D0
SE9200730D0 SE9200730A SE9200730A SE9200730D0 SE 9200730 D0 SE9200730 D0 SE 9200730D0 SE 9200730 A SE9200730 A SE 9200730A SE 9200730 A SE9200730 A SE 9200730A SE 9200730 D0 SE9200730 D0 SE 9200730D0
Authority
SE
Sweden
Prior art keywords
casing
drilling
end portion
boral
draw
Prior art date
Application number
SE9200730A
Other languages
Swedish (sv)
Other versions
SE469394B (en
SE9200730L (en
Inventor
Anders Nelson
Hans Alexandersson
Original Assignee
Anders Nelson
Hans Alexandersson
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 Anders Nelson, Hans Alexandersson filed Critical Anders Nelson
Priority to SE9200730A priority Critical patent/SE9200730L/en
Publication of SE9200730D0 publication Critical patent/SE9200730D0/en
Priority to DE69310159T priority patent/DE69310159D1/en
Priority to AU37706/93A priority patent/AU3770693A/en
Priority to PCT/SE1993/000089 priority patent/WO1993018274A1/en
Priority to AT93906918T priority patent/ATE152210T1/en
Priority to EP93906918A priority patent/EP0629259B1/en
Publication of SE469394B publication Critical patent/SE469394B/en
Publication of SE9200730L publication Critical patent/SE9200730L/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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/14—Casing shoes for the protection of the bottom of the casing
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
    • 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
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Drilling And Boring (AREA)

Abstract

The invention concerns a method and a device in rock drilling according to which a casing (1) provided with a rigid front end portion (2) is lowered concurrently with the drilling in order to seal said casing front end portion from the wall of the drilled hole. In accordance with the invention annular members (5) are inserted into one or several external peripheral grooves formed in the casing end portion (2), said annular members consisting of a material which with delay expand when moistened. Owing to this arrangement, the casing (1) may be lowered simultaneously with the drilling while encountering a minimum of resistance while at the same time a sealing means is provided which is well protected during the drilling operation but after the drilling seals the casing efficiently from the surrounding drill hole wall.
SE9200730A 1992-03-09 1992-03-09 MADE TO DRAW BETWEEN LINING RODS AND BORAL REMOVAL DEVICE FOR IMPLEMENTATION SE9200730L (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9200730A SE9200730L (en) 1992-03-09 1992-03-09 MADE TO DRAW BETWEEN LINING RODS AND BORAL REMOVAL DEVICE FOR IMPLEMENTATION
DE69310159T DE69310159D1 (en) 1992-03-09 1993-02-09 METHOD AND DEVICE FOR PRODUCING A SEAL BETWEEN PIPING AND DRILLING HOLE IN STONE DRILLING WORKS
AU37706/93A AU3770693A (en) 1992-03-09 1993-02-09 A method and a device for sealing between a casing and a drill hole in rock drilling operations
PCT/SE1993/000089 WO1993018274A1 (en) 1992-03-09 1993-02-09 A method and a device for sealing between a casing and a drill hole in rock drilling operations
AT93906918T ATE152210T1 (en) 1992-03-09 1993-02-09 METHOD AND DEVICE FOR PRODUCING A SEAL BETWEEN THE PIPING AND THE BORED HOLE IN ROCK DRILLING WORKS
EP93906918A EP0629259B1 (en) 1992-03-09 1993-02-09 A method and a device for sealing between a casing and a drill hole in rock drilling operations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9200730A SE9200730L (en) 1992-03-09 1992-03-09 MADE TO DRAW BETWEEN LINING RODS AND BORAL REMOVAL DEVICE FOR IMPLEMENTATION

Publications (3)

Publication Number Publication Date
SE9200730D0 true SE9200730D0 (en) 1992-03-09
SE469394B SE469394B (en) 1993-06-28
SE9200730L SE9200730L (en) 1993-06-28

Family

ID=20385571

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9200730A SE9200730L (en) 1992-03-09 1992-03-09 MADE TO DRAW BETWEEN LINING RODS AND BORAL REMOVAL DEVICE FOR IMPLEMENTATION

Country Status (5)

Country Link
EP (1) EP0629259B1 (en)
AT (1) ATE152210T1 (en)
DE (1) DE69310159D1 (en)
SE (1) SE9200730L (en)
WO (1) WO1993018274A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6401820B1 (en) * 1998-01-24 2002-06-11 Downhole Products Plc Downhole tool
SE522748C2 (en) * 1998-03-04 2004-03-02 Hans Alexandersson Geothermal well seal
US7228915B2 (en) 2001-01-26 2007-06-12 E2Tech Limited Device and method to seal boreholes
GB0131019D0 (en) 2001-12-27 2002-02-13 Weatherford Lamb Bore isolation
GB0303152D0 (en) 2003-02-12 2003-03-19 Weatherford Lamb Seal
SE537708C2 (en) * 2012-04-04 2015-10-06 Lkab Wassara Ab Drilling device for pipe drive

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1454305A (en) * 1974-01-25 1976-11-03 Coal Industry Patents Ltd Standpipe device
US4919989A (en) * 1989-04-10 1990-04-24 American Colloid Company Article for sealing well castings in the earth

Also Published As

Publication number Publication date
EP0629259B1 (en) 1997-04-23
EP0629259A1 (en) 1994-12-21
SE469394B (en) 1993-06-28
DE69310159D1 (en) 1997-05-28
WO1993018274A1 (en) 1993-09-16
SE9200730L (en) 1993-06-28
ATE152210T1 (en) 1997-05-15

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