CN201460785U - Bottom-hole fallen object fisher - Google Patents
Bottom-hole fallen object fisher Download PDFInfo
- Publication number
- CN201460785U CN201460785U CN2009200984147U CN200920098414U CN201460785U CN 201460785 U CN201460785 U CN 201460785U CN 2009200984147 U CN2009200984147 U CN 2009200984147U CN 200920098414 U CN200920098414 U CN 200920098414U CN 201460785 U CN201460785 U CN 201460785U
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- China
- Prior art keywords
- fisher
- bottom hole
- capsule
- milling head
- falling article
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- Expired - Fee Related
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Abstract
The utility model belongs to the field of bottom-hole fallen object fishing tools in the petroleum drilling industry, in particular to a bottom-hole fallen object fisher. Threads are formed at the upper part of a main body of the fisher, an annular milling head is arranged at the bottom part thereof, a strong magnetic field reclaiming sack is arranged at the middle part and comprises a strong magnet and reclaiming sack cage bars, and a water pore is formed in a proper position of the fisher. The utility model has the benefits that the material is saved, the process is simplified, and the manufacturing cost is reduced; and bottom-hole magnetic fallen objects with the volume no smaller than that of three gears can be obtained through one-time fishing, thereby avoiding the unnecessary economic loss caused due to repeated fishing.
Description
Technical field
The utility model belongs to oil drilling industry bottom hole falling article fishing tool field, and the fall salvage of well or other magnetic material bottom hole falling article of the gear wheel that is applicable to rock bit relates to a kind of bottom hole falling article fisher especially.
Background technology
In drillng operation, because particularity of working conditions inevitably produces bottom hole falling article.The rock bit that the oil drilling aspect is used, because the generally use of mud motor, disturbed the rock bit correct judgement of state at work, fail in time to realize because of bit bearing damages frequently, to cause serious wear, to make the gear wheel well that falls, drilling well work can not normally be carried out, junk must be pulled out, otherwise need normally to carry out drilling well work with junk mill to the greatest extent the junk mill.Use junk mill to handle bottom hole falling article, consuming time oversize, cost greatly, be unfavorable for the carrying out of work.Salvaging with scientific methods, bottom hole falling article is pulled out comprehensively completely, is most economical selection.So need with a kind of reliable bottom hole falling article fisher, it can pick up bottom hole falling article, again can be smoothly the borehole wall by complexity, and do not cause the junk well that falls again, ground is finally proposed, finish salvage.
Summary of the invention
The purpose of this utility model is exactly in order to solve above-mentioned existing issue, and provide a kind of bottom hole falling article fisher, this fishing tool can will be no less than the disposable salvaging success of shaft bottom magnetic material junk of three gear wheel volumes, avoids repeatedly going into the well salvaging and causes unnecessary economic loss.
In order to achieve the above object, the technical solution of the utility model is: a kind of bottom hole falling article fisher, it is characterized in that: screw thread is arranged at the top of main body, the bottom is provided with annular milling head, the middle part is that high-intensity magnetic field reclaims capsule, described high-intensity magnetic field reclaims capsule and is made of kicker magnet and recovery capsule cage muscle, in the appropriate location of fisher the water hole is set.
Can the milling head tooth of welding antifriction alloy on the above-mentioned annular milling head, also can the insert hard-metal insert.
Above-mentioned kicker magnet is divided into several sections, blocks with clamp, is fixed on the main body.
Above-mentioned clamp has the inclination of certain angle.
The beneficial effects of the utility model are:
The bottom hole falling article fisher can will be no less than the disposable salvaging success of shaft bottom magnetic material junk of three gear wheel volumes, avoid repeating to salvage and cause unnecessary economic loss.
By milling head to the milling clearly of shaft bottom, the bottom hole falling article that is compacted is got loose, be easy to be reclaimed attached the putting into the pocket of strong magnetic in the capsule by strong magnetic.
3. salvaged the thing protection and reclaimed in the capsule utricule, when promoting, can avoid " dog-leg " or other unfavorable borehole wall to stop, make junk fall into the shaft bottom again very smoothly by the comparatively complicated borehole wall in the iron cage.
4. the energy economical with materials is simplified technology, reduces manufacturing cost.
Description of drawings
Fig. 1 salvages the schematic diagram of bottom hole falling article for the utility model.
Fig. 2 is that the utility model is at the cross-sectional view that reclaims the capsule position.
Fig. 3 is the milling head part of the utility model insert hard-metal insert.
The specific embodiment
Situation when Fig. 1 is the utility model salvaging bottom hole falling article, Fig. 2 is that Fig. 3 is the milling head part of insert hard-metal insert at the cross-sectional view that reclaims the capsule position.1 is main body among the figure, 2 is kicker magnet, and 3 is water hole and water hole body, and 4 is clamp, 5 for being welded with the milling head tooth of antifriction alloy, 6 bottom hole falling articles for salvaging, the 7th, the magnetic line of force of high-intensity magnetic field, 8 is the hard-metal insert of insert, the 11st, the cage muscle of recovery capsule, the 12nd, high-intensity magnetic field reclaims capsule, the 21st, the N utmost point of strong magnet, the 22nd, the S utmost point of strong magnet.
As shown in Figure 1, screw thread is arranged at the top of the utility model main body (1), and the bottom is provided with annular milling head (5) or (8), and the middle part is that high-intensity magnetic field reclaims capsule, high-intensity magnetic field reclaims capsule (12) and is made of kicker magnet (2) and recovery capsule cage muscle (11), and water hole (3) is set in the appropriate location of fisher.The utility model is by the drilling rod that is threadedly connected on its main body (1) top, the utility model is delivered to the shaft bottom, method rotation with similar drilling well, be welded with the annular milling head part (5) or (8) of the hard-metal insert (8) of the milling head tooth (5) of antifriction alloy or insert as shown in Figure 4, in the shaft bottom rotation, creep into the same with core bit injected mud by water hole (3) simultaneously, the cutting teeth of cooling milling head is discharged landwaste simultaneously.By creeping into of a period of time, formed at the bottom of the annular wells, the bottom hole falling article (6) that is stuck is got loose, and concentrate to the well center, as shown in Figure 3, enter in the N utmost point (21) of kicker magnet (2) and the strong magnetic line of force (7) that the S utmost point (22) is constituted, adsorbed firmly.Reclaim in the capsule (12) (in the scope of the magnetic line of force (7)) at high-intensity magnetic field in order to make all be dragged for the more firm income of thing, " carry brill " repeatedly and " creeping into ".Through several " carrying brill " and " creeping into ", the basic all incomes of shaft bottom magnetic junk high-intensity magnetic fields reclaim in the capsule (12), at this moment the bottom hole falling article fisher can be salvaged thing together with quilt and lift from the shaft bottom, until proposing ground.Carry in the process last,,, be not subjected to stopping of the lopsided boreholes wall such as " dog-legs ", avoid being dragged for thing secondary falling well, finish fishing smoothly being dragged for the thing protection in the capsule cage owing to reclaim the effect of capsule cage muscle (11).
As shown in Figure 1, in the salvaging process, salvaged thing (6) and moved on can be smoothly in order to make, with clamp (4) bottom surface certain angle that is inclined upwardly, form an inclined-plane, in " creeping into " process, bottom hole falling article will move on smoothly along clamp (4) inclined-plane, enter the recovery capsule.
For can be more firm kicker magnet (2) be fixed on the main body (1), kicker magnet (2) is divided into several sections, block with clamp (4), be welded on the main body (1), should take cooling provision during welding, can not make kicker magnet produce overheated and demagnetize.Water hole and water hole body (3) thereof not only can provide slurry channel to the shaft bottom, and mud is sent into the shaft bottom smoothly, and can utilize it to fix kicker magnet (2), can reduce the loss of reclaiming the capsule space, again can economical with materials, simplify technology, and reduce manufacturing cost.Clamp (4) and water hole body (3) are all used no magnetic material and are manufactured, otherwise will provide flux circuit to kicker magnet (2), lose the effect of strong magnetic, and the magnetic line of force (7) that the bottom hole falling article salvaged is passed through reduces, and it is undesirable to salvage effect.
Claims (4)
1. bottom hole falling article fisher, it is characterized in that: screw thread is arranged at the top of main body, and the bottom is provided with annular milling head, and the middle part is that high-intensity magnetic field reclaims capsule, and described high-intensity magnetic field reclaims capsule by kicker magnet with reclaim capsule cage muscle and constitute, and in the appropriate location of fisher the water hole is set.
2. bottom hole falling article fisher according to claim 1 is characterized in that: can be the milling head tooth of welding antifriction alloy on the described annular milling head, also can be installed with hard-metal insert.
3. bottom hole falling article fisher according to claim 1 is characterized in that: described kicker magnet is divided into several sections, blocks with clamp, is fixed on the main body.
4. bottom hole falling article fisher according to claim 3 is characterized in that: described clamp has the inclination of certain angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200984147U CN201460785U (en) | 2009-08-19 | 2009-08-19 | Bottom-hole fallen object fisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200984147U CN201460785U (en) | 2009-08-19 | 2009-08-19 | Bottom-hole fallen object fisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201460785U true CN201460785U (en) | 2010-05-12 |
Family
ID=42388139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200984147U Expired - Fee Related CN201460785U (en) | 2009-08-19 | 2009-08-19 | Bottom-hole fallen object fisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201460785U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852068A (en) * | 2010-05-26 | 2010-10-06 | 彭桂湘 | Magnetic valve fisher |
| CN103939045A (en) * | 2014-04-03 | 2014-07-23 | 中交二航局第三工程有限公司 | Fishing device for fallen drill teeth of roller bit |
| CN111997555A (en) * | 2020-09-15 | 2020-11-27 | 中勘资源勘探科技股份有限公司 | Fishing tool for objects falling from well bottom and fishing method thereof |
-
2009
- 2009-08-19 CN CN2009200984147U patent/CN201460785U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852068A (en) * | 2010-05-26 | 2010-10-06 | 彭桂湘 | Magnetic valve fisher |
| CN103939045A (en) * | 2014-04-03 | 2014-07-23 | 中交二航局第三工程有限公司 | Fishing device for fallen drill teeth of roller bit |
| CN103939045B (en) * | 2014-04-03 | 2016-07-06 | 中交二航局第三工程有限公司 | Rifler drops and bores the fishing device of tooth |
| CN111997555A (en) * | 2020-09-15 | 2020-11-27 | 中勘资源勘探科技股份有限公司 | Fishing tool for objects falling from well bottom and fishing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20160819 |