SE501357C2 - Fishing tool for freeing boring tool located in borehole - comprises coupling piece with spined hole in which splined striker bar moves forwards and backwards - Google Patents
Fishing tool for freeing boring tool located in borehole - comprises coupling piece with spined hole in which splined striker bar moves forwards and backwardsInfo
- Publication number
- SE501357C2 SE501357C2 SE9302073A SE9302073A SE501357C2 SE 501357 C2 SE501357 C2 SE 501357C2 SE 9302073 A SE9302073 A SE 9302073A SE 9302073 A SE9302073 A SE 9302073A SE 501357 C2 SE501357 C2 SE 501357C2
- Authority
- SE
- Sweden
- Prior art keywords
- coupling piece
- tool
- rod
- bar
- borehole
- Prior art date
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 12
- 238000010168 coupling process Methods 0.000 title claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 12
- 238000005553 drilling Methods 0.000 claims description 16
- 238000009527 percussion Methods 0.000 claims description 7
- 239000011435 rock Substances 0.000 description 6
- 230000003993 interaction Effects 0.000 description 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/107—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars
-
- 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
Description
501 357 2 15 till vilken en borrsträng 2 är ansluten. Borrsträngen 2 innefattar en rörsats 4, bestående av ett eller flera sammanskruvade rör, avsedd för att överföra vridning från bergborrmaskinen 15 till ett bon-verktyg 7. I rörsatsen är en stångsats 5 avsedd för att överföra slagenergi från bergborrmaskinen till borrverktyget. Stångsatsen består av en eller flera stänger som anligger löst mot varandra. I det visade exemplet är borrsträngen 2 framtill försedd med ett fiskeverktyg innefattande ett kopplingsstycke 1 som har axiellt hål försett med invändiga splines 8. Kopplingsstycket är försett med en gänga 14 för anslutning till borrsträngens 2 rörsats 4. En slagstång 6 försedd med utvändiga splines 9 för samverkan med de invändiga splinesen 8 är fram och åter rörlig i kopplingsstycket. Slagstången är vid sin bakre ände försedd med en fläns 10 för mottagning av slagenergi från stångsatsen 5. Ett ändstycke 12 är medelst ett gängförband 13 förbundet med Slagstången 6. Ändstycket är medelst ett gängförband 11 förbundet med en fångsthylsa 3. Fångsthylsan 3 är vid sin främre ände försedd med ett hål 21 som antingen är koniskt eller på annat sätt utformat så att fångsthylsan kan drivas på ett i borrhålet kvarbliver borrverktyg 7 så att ett förband bildas mellan fångsthylsa och borrverktyg som tillåter att borrverktyget 7 medelst återmatning av bergborrmaskinen 15 frigörs från borrhålet. 501 357 2 to which a drill string 2 is connected. The drill string 2 comprises a pipe set 4, consisting of one or two screwed pipes, intended to transmit rotation from the rock drilling machine 15 to a nesting tool 7. In the pipe set, a rod set 5 is intended to transmit impact energy from the rock drilling machine to the drilling tool. The rod set consists of one or more rods that abut loosely against each other. In the example shown, the drill string 2 is provided at the front with a fi spoon tool comprising a coupling piece 1 which has an axial hole provided with internal splines 8. The coupling piece is provided with a thread 14 for connection to the drill string 4 pipe set 4. A percussion rod 6 provided with external splines 9 for interaction with the internal splines 8 is reciprocable in the coupling piece. The striking rod is provided at its rear end with an end 10 for receiving striking energy from the rod set 5. An end piece 12 is connected to the striking rod 6 by means of a threaded joint 13. end provided with a hole 21 which is either conical or otherwise designed so that the catch sleeve can be driven on a drilling tool 7 remaining in the borehole so that a connection is formed between the catch sleeve and drilling tool which allows the drilling tool 7 to be released from the rock drill 15.
Det visade fiskeverktyget fungerar på följande sätt. Då ett borrverktyg blivit kvar i borrhålet skruvas fiskeverktyget fast på rörsatsen. Fiskeverktyget förs ned i borrhålet medelst borrstrângen så att hålet 21 styr upp på borrverktyget.The fi spoon tool shown works as follows. When a drilling tool has remained in the borehole, the fi spoon tool is screwed onto the pipe set. The fishing tool is lowered into the borehole by means of the drill string so that the hole 21 guides up on the drilling tool.
Därefter drivs fångsthylsan upp på borrverktyget genom att bergborrmaskinen matas mot borrhålet samt genom att slagstången utsätts för slag medelst bergborrmaslcinen. Denna verkan kan förstärkas medelst rotation av borrsträngen. När detta skett åter-matas bergborrmaskinen så att borrverktyget frigörs.Thereafter, the catch sleeve is driven up on the drilling tool by feeding the rock drilling machine against the borehole and by subjecting the percussion rod to blows by means of the rock drilling machine. This effect can be enhanced by rotation of the drill string. When this has been done, the rock drill is fed back so that the drilling tool is released.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9302073A SE501357C2 (en) | 1993-06-16 | 1993-06-16 | Fishing tool for freeing boring tool located in borehole - comprises coupling piece with spined hole in which splined striker bar moves forwards and backwards |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9302073A SE501357C2 (en) | 1993-06-16 | 1993-06-16 | Fishing tool for freeing boring tool located in borehole - comprises coupling piece with spined hole in which splined striker bar moves forwards and backwards |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9302073D0 SE9302073D0 (en) | 1993-06-16 |
SE9302073L SE9302073L (en) | 1994-12-17 |
SE501357C2 true SE501357C2 (en) | 1995-01-23 |
Family
ID=20390299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9302073A SE501357C2 (en) | 1993-06-16 | 1993-06-16 | Fishing tool for freeing boring tool located in borehole - comprises coupling piece with spined hole in which splined striker bar moves forwards and backwards |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE501357C2 (en) |
-
1993
- 1993-06-16 SE SE9302073A patent/SE501357C2/en unknown
Also Published As
Publication number | Publication date |
---|---|
SE9302073D0 (en) | 1993-06-16 |
SE9302073L (en) | 1994-12-17 |
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