DE3543295C2 - - Google Patents
Info
- Publication number
- DE3543295C2 DE3543295C2 DE19853543295 DE3543295A DE3543295C2 DE 3543295 C2 DE3543295 C2 DE 3543295C2 DE 19853543295 DE19853543295 DE 19853543295 DE 3543295 A DE3543295 A DE 3543295A DE 3543295 C2 DE3543295 C2 DE 3543295C2
- Authority
- DE
- Germany
- Prior art keywords
- catching tool
- tool according
- permanent magnets
- mandrel body
- catching
- 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.)
- Expired
Links
- 230000005291 magnetic effect Effects 0.000 claims description 28
- 239000003381 stabilizer Substances 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 230000004323 axial length Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 239000000696 magnetic material Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 5
- 238000003801 milling Methods 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005406 washing Methods 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
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/16—Grappling tools, e.g. tongs or grabs combined with cutting or destroying 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
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
-
- 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
- E21B31/06—Fishing for or freeing objects in boreholes or wells using magnetic means
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Marine Sciences & Fisheries (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853543295 DE3543295A1 (de) | 1985-12-07 | 1985-12-07 | Fangwerkzeug zum entfernen eisenhaltiger spaene aus tiefbohrloechern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853543295 DE3543295A1 (de) | 1985-12-07 | 1985-12-07 | Fangwerkzeug zum entfernen eisenhaltiger spaene aus tiefbohrloechern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3543295A1 DE3543295A1 (de) | 1987-06-25 |
| DE3543295C2 true DE3543295C2 (it) | 1988-12-01 |
Family
ID=6287895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19853543295 Granted DE3543295A1 (de) | 1985-12-07 | 1985-12-07 | Fangwerkzeug zum entfernen eisenhaltiger spaene aus tiefbohrloechern |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3543295A1 (it) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9912666D0 (en) * | 1999-05-29 | 1999-07-28 | Specialised Petroleum Serv Ltd | Magnetic well cleaning apparatus |
| US20070267196A1 (en) * | 2006-05-17 | 2007-11-22 | Maximiliano Mondelli | Downhole activated packer plug magnetic debris tool |
| US7753114B1 (en) | 2008-05-01 | 2010-07-13 | Penisson Dennis J | Magnetic wellbore cleaning tool |
| GB201001917D0 (en) * | 2010-02-05 | 2010-03-24 | M I Drilling Fluids Uk Ltd | Improved downhole tool and method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2965406A (en) * | 1960-12-20 | Magnetic drill joint | ||
| FR1167537A (fr) * | 1955-11-02 | 1958-11-26 | Neyrpic Ets | Outil magnétique de repêchage pour sondages |
| US3089724A (en) * | 1960-12-05 | 1963-05-14 | Sentinel Oil Tool Dev & Servic | Magnetic junk sub |
| DE1184302B (de) * | 1963-05-02 | 1964-12-31 | Sentinel Oil Tool Dev & Servic | Magnetischer Bohrgutfaenger fuer Erdbohrer |
| GB1235656A (en) * | 1969-01-22 | 1971-06-16 | William Mayall | Improvements in or relating to earth drilling apparatus |
| DE3129682C1 (de) * | 1981-07-28 | 1983-01-27 | Johannes 3101 Nienhof Biesterfeld | Fangwerkzeug mit ringförmigen Permanentmagneten, Bürsten und Fangkorb |
-
1985
- 1985-12-07 DE DE19853543295 patent/DE3543295A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3543295A1 (de) | 1987-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: BAKER HUGHES INC. (N.D.GES.D.STAATES DELAWARE), HO |
|
| 8328 | Change in the person/name/address of the agent |
Free format text: DERZEIT KEIN VERTRETER BESTELLT |
|
| 8328 | Change in the person/name/address of the agent |
Free format text: BUSSE, V., DIPL.-WIRTSCH.-ING. DR.JUR. BUSSE, D., DIPL.-ING. BUENEMANN, E., DIPL.-ING. POTT, U., DIPL.-ING., PAT.-ANWAELTE, 49084 OSNABRUECK |
|
| 8339 | Ceased/non-payment of the annual fee |