CN204266966U - Wing junk mill - Google Patents
Wing junk mill Download PDFInfo
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- CN204266966U CN204266966U CN201420763066.1U CN201420763066U CN204266966U CN 204266966 U CN204266966 U CN 204266966U CN 201420763066 U CN201420763066 U CN 201420763066U CN 204266966 U CN204266966 U CN 204266966U
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- junk mill
- hydrophthalmia
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Abstract
A kind of wing junk mill.It is inlay YT8 hard alloy columnar that existing junk mill mainly contains two class one classes, but due to alloy column limited length (being less than or equal to 10mm) thus traditional product milling top of fish time the life-span shorter.Another kind of is with YT8 hard broken alloy electrode built-up welding, owing to being the irregularly shaped broken alloy of built-up welding, so cutting ability is better during milling, but there is the problem of shorter and sealing-off in application life equally.The utility model composition comprises: body (2), described body left side is provided with one group of wing that annular array is arranged, described wing rotates on stress surface and has hard titanium carbide alloy bar (4), described hard titanium carbide alloy bar studs with one group of hard titanium hard metal tip (6) and forms, described wing rotary end surface has hard cobalt hard alloy layer (3), one group, described body left side hydrophthalmia (1), described hydrophthalmia mouth place is provided with groove (5).The utility model is used for drilling failure process.
Description
technical field:
the utility model relates to the workover tool in a kind of drilling failure process, is specifically related to a kind of wing junk mill.
background technology:
wing junk mill is the workover tool in drilling failure process, and being the effective tool of milling finishing top of fish, is the indispensable instrument in workover tool.It is inlay YT8 hard alloy columnar that existing junk mill mainly contains two class one classes, but due to alloy column limited length (being less than or equal to 10mm) thus traditional product milling top of fish time the life-span shorter.Another kind of is with YT8 hard broken alloy electrode built-up welding, owing to being the irregularly shaped broken alloy of built-up welding, so cutting ability is better during milling, but there is the problem of shorter and sealing-off in application life equally.
utility model content:
the purpose of this utility model is to provide the workover tool in a kind of drilling failure process, specifically provides a kind of wing junk mill.
above-mentioned object is realized by following technical scheme:
a kind of wing junk mill, its composition comprises: body, described body left side is provided with one group of wing that annular array is arranged, described wing rotates on stress surface and has hard titanium carbide alloy bar, described hard titanium carbide alloy bar studs with one group of hard titanium hard metal tip, described wing rotary end surface has hard cobalt hard alloy layer, one group, described body left side hydrophthalmia, described hydrophthalmia mouth place is provided with groove.
described wing junk mill, the angle between described hydrophthalmia and body longitudinal axis is 13 ° 13 ', and described hydrophthalmia communicates with centre bore, and described hard cobalt hard alloy layer is that broken hard cobalt hard alloy fragment is formed.
the beneficial effects of the utility model:
1, to be the improvement existing junk mill short for application life for the utility model, improving down-hole milling operating efficiency, reduce running cost, improving junk mill application life and drilling efficiency for solving in drilling process, wing junk mill is developed in practice, adopt year alloy-layer cutting resistance can be made little, abrasion resistance improve, irregular top of fish can be tackled, its application life be the 2-3 of traditional junk mill doubly, solve traditional junk mill cutting resistance large, application life is short, repeatedly changes the problem of junk mill during milling fish.
annular array wing is processed in wing junk mill body lower end, and wing is spin canting structure, rotates on stress surface and burn-ons with water electrode holder YT14 hard titanium carbide alloy bar, the hard cobalt hard alloy fragment of built-up welding YG8 between hydrophthalmia and wing at wing.Be equivalent between the broken alloy of traditional built-up welding broken alloy junk mill, with the addition of rotation wing, red sword, the abrasion resistance of the hard cobalt hard alloy of the YG8 that wing welds.Built-up welding between wing and hydrophthalmia hard cobalt hard alloy layer can tackle irregularly shaped object because the irregular wedge angle of broken alloy shape is outstanding, so grinding performance is good, between the broken alloy of built-up welding and wing, water welds the resistance to impact that the integral solid backing becoming wing of solid enhances wing.The combination of wing and hard cobalt hard alloy layer makes the cutting resistance of junk mill little, and anti-wear performance is good, can tackle cloth rule top of fish, also have good milling effect for down-hole superhard material.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present utility model.
accompanying drawing 2 is left views of accompanying drawing 1.
accompanying drawing 3 is rear elevations of the present utility model.
detailed description of the invention:
embodiment 1:
a kind of wing junk mill, its composition comprises: body 2, described body left side is provided with one group of wing that annular array is arranged, described wing rotates on stress surface and has hard titanium carbide alloy bar 4, described hard titanium carbide alloy bar studs with one group of hard titanium hard metal tip 6, described wing rotary end surface has hard cobalt hard alloy layer 3, one group, described body left side hydrophthalmia 1, described hydrophthalmia mouth place is provided with groove 5.
embodiment 2:
wing junk mill according to embodiment 1, angle between described hydrophthalmia and body longitudinal axis is 13 ° 13 ', described hydrophthalmia communicates with centre bore, described hard cobalt hard alloy layer is that broken hard cobalt hard alloy fragment is formed, the material of described hard cobalt hard alloy is YG8 carbide alloy, and the material of described hard titanium carbide alloy bar is YT14 carbide alloy.
embodiment 2:
wing junk mill according to embodiment 1-2, as shown in Figure 1: cutter junk mill is made up of body, hard titanium carbide alloy bar, hard cobalt hard alloy layer three part.The standard drill pipe screw thread of body upper end is connected with drilling rod, and time above predetermined top of fish of going into the well, turn on pump rinses top of fish, brill milling top of fish then, and often lower brill is carried and got into lower brill continuation milling again above top of fish for 20-30 minute.The common fish of wing junk mill milling can reach 8 meters, answers upper body drilling tool to check the service condition of special efficacy junk mill so special efficacy junk mill is gone into the well after milling 8 meters, and the milling Expenditure Levels according to junk mill determines whether can continue use of going into the well.
Claims (2)
1. a wing junk mill, its composition comprises: body, it is characterized in that: described body left side is provided with one group of wing that annular array is arranged, described wing rotates on stress surface and has hard titanium carbide alloy bar, described hard titanium carbide alloy bar studs with one group of hard titanium hard metal tip, described wing rotary end surface has hard cobalt hard alloy layer, one group, described body left side hydrophthalmia, described hydrophthalmia mouth place is provided with groove.
2. wing junk mill according to claim 1, is characterized in that: the angle between described hydrophthalmia and body longitudinal axis is 13 ° 13 ', and described hydrophthalmia communicates with centre bore, and described hard cobalt hard alloy layer is that broken hard cobalt hard alloy fragment is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420763066.1U CN204266966U (en) | 2014-12-08 | 2014-12-08 | Wing junk mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420763066.1U CN204266966U (en) | 2014-12-08 | 2014-12-08 | Wing junk mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204266966U true CN204266966U (en) | 2015-04-15 |
Family
ID=52801838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420763066.1U Active CN204266966U (en) | 2014-12-08 | 2014-12-08 | Wing junk mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204266966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027372A (en) * | 2020-11-12 | 2021-06-25 | 北京博德世达石油技术股份有限公司 | Novel wear-resisting high-efficient junk mill |
-
2014
- 2014-12-08 CN CN201420763066.1U patent/CN204266966U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027372A (en) * | 2020-11-12 | 2021-06-25 | 北京博德世达石油技术股份有限公司 | Novel wear-resisting high-efficient junk mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |