CN2703865Y - Flexible sunk-matter aalvage grinding-milling tool - Google Patents
Flexible sunk-matter aalvage grinding-milling tool Download PDFInfo
- Publication number
- CN2703865Y CN2703865Y CN 200420041377 CN200420041377U CN2703865Y CN 2703865 Y CN2703865 Y CN 2703865Y CN 200420041377 CN200420041377 CN 200420041377 CN 200420041377 U CN200420041377 U CN 200420041377U CN 2703865 Y CN2703865 Y CN 2703865Y
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- CN
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- Prior art keywords
- milling
- grinding
- sunk
- flexible
- salvage
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- Expired - Fee Related
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Abstract
The utility model discloses a flexible sunk-matter salvage grinding-milling tool. The flexible sunk-matter salvage grinding-milling tool is adequate for salvaging the various flexibility sunk-matters in the underground. The tool is provided with a salvage barrel and a grinding-milling shoe; the grinding-milling face of the grinding-milling shoe is inlayed the hard alloy; an upper joint, the salvage barrel, and the grinding-milling shoe are connected in sequence. The inner wall of the salvage barrel is provided with a salvage hook and the grinding-milling end face of the grinding-milling shoe is sinusoidal curvilinear shape. Compared with the hackle grinding-milling shose, the grinding-milling blade of the utility model is bigger, which can enhance the speed of cutting the sunk matter and can reduce the torque of the drilling tool in process of cutting. The tool is convenient in operation, reliable in use, and quite simple in manufacture; the flexible sunk-matter salvage grinding-milling tool can greatly shorten the time for dealing with the accident; the flexible sunk-matter salvage grinding-milling tool can reduce the production cost and the labor intensity for the workers.
Description
Technical field
The utility model relates to the down-hole of petroleum industry and salvages milling tool, and particularly a kind of flexible fishing junk milling tool is applicable to and salvages the various flexible class junks that fall in the well of milling.
Technical background
At present, in Process of Oil Well Drilling, often run into flexible class article and fall into the interior problem of well, as cable, rope and steel wire etc.The method of flexible class junk is to connect the milling footwear with fishing socket to carry out the milling salvaging in the processing well commonly used.In the time can't salvaging with fishing spear after the junk conglomeration in the well, handle with fishing socket and milling footwear.Its operating principle is with the chopping of agglomerating junk, in the tube of packing into of bulk, and the returning to ground of fritter with drilling fluid.The milling end face of existing milling footwear all is to adopt tungsten carbide button on the plane, forms laciniation, because the milling sword is too short, so its efficient is lower, has extended and has handled the activity duration of such accident, has strengthened cost of production.
Summary of the invention
The purpose of this utility model provides a kind of flexible fishing junk milling tool, overcomes defective of the prior art, improves milling efficient, reduces the time of such accident of processing.
The present technique solution can reach above-mentioned purpose: a kind of flexible fishing junk milling tool, have dipper and milling footwear, and the milling end face insert carbide alloy of milling footwear is linked in sequence top connection, dipper and milling footwear.The dipper inwall is provided with to drag for and colludes, and the milling end face of milling footwear is sinusoidal.
After using the utility model,, increased substantially milling efficient because the milling end face of sinusoidal shape strengthens its milling sword.Because of flexible class junk has elasticity preferably, when the milling footwear of employing sinusoidal shape cut it, compare with zigzag milling footwear, can improve the speed of cutting, the moment of torsion of drilling tool when reducing cutting.After relatively large shape thing after the milling was loaded in the dipper, quilt is dragged for to collude tangled difficult drop-off.This tool operation is convenient, uses reliably, makes also very simply, has shortened the time of handling such accident greatly, has reduced cost of production and working strength of workers.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description: referring to accompanying drawing, a kind of flexible fishing junk milling tool comprises dipper 3 and milling footwear 4, and the milling end face insert carbide alloy of milling footwear 4 is linked in sequence top connection 1, dipper 3 and milling footwear 4.Dipper 3 inwalls are provided with to drag for and collude 2, and the milling end face of milling footwear 4 is sinusoidal.Drag for and collude 2 for sheet, collude the top up, and the angle of dipper 3 inwalls is between 25 °-45 ° any one, is the best with the angle between 30 °-40 °, drag for and collude 2 and on dipper 3 inwalls, be crisscross arranged.Carbide alloy is installed in the crest and the trough place of milling footwear 4 milling cross section curves.The internal diameter of milling footwear 4 equates with the internal diameter of dipper 3, and its external diameter is than among the little 22mm-27mm of well internal diameter any one.Top connection 1 and dipper 3 are split-type structural or monolithic construction.Just top connection 1 and dipper 3 made separately or top connection 1 and dipper 3 are made a member.When need salvaging the flexible class junk in down-hole, this instrument is connected the bottom of drilling tool, carries out tripping operation, from junk 30-50 rice the time, should slowly transfer instrument, and turn on pump circulates, remove the foreign material at top clean.Slowly transfer drilling tool then, observe the variation of suspending weight, rotation drilling tool is salvaged.When running into the junks such as cable of conglomeration, the milling sword of milling footwear 4 can shred junk, and big fragment will be packed into to be dragged in the dipper 3 and be colluded 2 and tangle, and the meeting of fritter is returned out ground with drilling fluid, can pull out of hole after dipper 3 is filled to change dipper 3.
Claims (5)
1, a kind of flexible fishing junk milling tool, comprise dipper (3) and milling footwear (4), the milling end face insert carbide alloy of milling footwear (4), top connection (1), dipper (3) and milling footwear (4) are linked in sequence, it is characterized in that dipper (3) inwall is provided with to drag for colludes (2), and the milling end face of milling footwear (4) is a sinusoidal.
2, a kind of flexible fishing junk milling tool according to claim 1, it is characterized in that dragging for collude (2) for sheet, collude the top up, and the angle of dipper (3) inwall is between 25 °-45 ° any one, with the angle between 30 °-40 ° is the best, drags for to collude (2) and be crisscross arranged on dipper (3) inwall.
3, a kind of flexible fishing junk milling tool according to claim 1 is characterized in that carbide alloy is installed in the crest and the trough place of milling footwear (4) milling cross section curve.
4. a kind of flexible fishing junk milling tool according to claim 1 is characterized in that the internal diameter of milling footwear (4) equates with the internal diameter of dipper (3), and its external diameter is than among the little 22mm-27mm of well internal diameter any one.
5, a kind of flexible fishing junk milling tool according to claim 1 is characterized in that top connection (1) and dipper (3) are split-type structural or monolithic construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041377 CN2703865Y (en) | 2004-06-18 | 2004-06-18 | Flexible sunk-matter aalvage grinding-milling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041377 CN2703865Y (en) | 2004-06-18 | 2004-06-18 | Flexible sunk-matter aalvage grinding-milling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2703865Y true CN2703865Y (en) | 2005-06-08 |
Family
ID=34774590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420041377 Expired - Fee Related CN2703865Y (en) | 2004-06-18 | 2004-06-18 | Flexible sunk-matter aalvage grinding-milling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2703865Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747976A (en) * | 2012-07-12 | 2012-10-24 | 中国海洋石油总公司 | Fishing needle, fishing device and fishing method for fishing a soft material in tube for oil gas well |
| CN110359873A (en) * | 2019-07-05 | 2019-10-22 | 中国石油天然气集团有限公司 | A kind of underground stub cable cutter and its application method |
-
2004
- 2004-06-18 CN CN 200420041377 patent/CN2703865Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747976A (en) * | 2012-07-12 | 2012-10-24 | 中国海洋石油总公司 | Fishing needle, fishing device and fishing method for fishing a soft material in tube for oil gas well |
| CN110359873A (en) * | 2019-07-05 | 2019-10-22 | 中国石油天然气集团有限公司 | A kind of underground stub cable cutter and its application method |
| CN110359873B (en) * | 2019-07-05 | 2021-11-02 | 中国石油天然气集团有限公司 | Underground short cable cutter and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |