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 IMPLEMENTATIONInfo
- 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
Links
- 238000005553 drilling Methods 0.000 abstract 5
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000011435 rock Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
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.
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)
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)
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 |
-
1992
- 1992-03-09 SE SE9200730A patent/SE9200730L/en not_active IP Right Cessation
-
1993
- 1993-02-09 WO PCT/SE1993/000089 patent/WO1993018274A1/en active IP Right Grant
- 1993-02-09 EP EP93906918A patent/EP0629259B1/en not_active Expired - Lifetime
- 1993-02-09 DE DE69310159T patent/DE69310159D1/en not_active Expired - Lifetime
- 1993-02-09 AT AT93906918T patent/ATE152210T1/en not_active IP Right Cessation
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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Legal Events
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