CN203756097U - Novel milling shoe device for oil well - Google Patents
Novel milling shoe device for oil well Download PDFInfo
- Publication number
- CN203756097U CN203756097U CN201420157067.1U CN201420157067U CN203756097U CN 203756097 U CN203756097 U CN 203756097U CN 201420157067 U CN201420157067 U CN 201420157067U CN 203756097 U CN203756097 U CN 203756097U
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- milling
- hole
- groove
- arc
- shoe device
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Abstract
The utility model relates to a novel milling shoe device for an oil well. The technical scheme includes that the novel milling shoe device comprises a body, an internal thread is arranged on the upper portion of the body, a milling tooth is arranged at the bottom of the body, a liquid discharging hole is arranged between the body and the milling tooth, and a central hole is arranged inside the body. The novel milling shoe device is characterized in that arc-shaped grooves are symmetrically arranged in the middle of the body, a screw hole is arranged on the upper portion of one arc-shaped groove, a spherical groove is arranged on the lower portion of the arc-shaped groove, a blind hole is arranged between the spherical groove and the body, a spring is arranged in the blind hole, a rolling ball is mounted inside the spherical groove and supported through the spring, the outer portion of the arc-shaped groove is connected with a fixing plate through a bolt, a screw hole and a spherical surface hole are arranged on the fixing plate, diameter of the spherical surface hole is smaller than that of the rolling ball, and a chip discharging groove is arranged on the outer wall of the milling tooth. The novel milling shoe device has the advantages of simple structure, easiness in manufacturing, applicability to oil-water well milling operation of the oil well, milling shoe impact resistance, long service life and good chip carrying effect.
Description
Technical field
The utility model relates to a kind of oil field oil, water well operation milling tool, particularly a kind of Novel oil well junk mill device.
Background technology
In oil field oil, water well operation process, in the time cannot normally salvaging the top of fish junk damaging in well, often adopt junk mill that the junk top of fish milling of damage is fallen, so that the salvaging of junk.Processing not clear junk in well, when the plug face that adopts common drill bit to bore to remove, tubing string that cement blocks admittedly, be generally to adopt different milling tools to realize above-mentioned operation.Above-mentioned milling tool generally has flat-bottom grind shoes, concave bottom milling shoe, multiple-cutting-edge junk mill etc., the YD alloy that its milling tooth is institute's built-up welding or other high-abrasive materials composition.
Chinese patent literature number: 202132009U, patent name is " Novel grind shoe ", comprising: joint, main body, grind one's teeth in sleep; It is characterized in that: described Novel grind shoe vertical section is " protruding " shape hollow cylinder body structure, top is to be with female joint, center is provided with centre bore, centre bore bottom communicates with the feed pathway of four even branches, at bottom and feed pathway four the returning fluid's passages that distributing alternately, returning fluid's passage aperture is greater than feed pathway, and through to the upper step of main body, bottom studs with grinds one's teeth in sleep.Junk mill easily causes the wearing and tearing to sleeve pipe in the course of the work, causes sleeve pipe eccentric wear, affects the application life of sleeve pipe.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has; a kind of Novel oil well junk mill device is provided; not milling internal surface of sleeve pipe when the inner fixing ball turns of fixed head is worked junk mill in well, protection body, the application life of prolongation sleeve pipe.
Its technical scheme is: comprise body, body top is provided with internal thread, body bottom is provided with grinds one's teeth in sleep, body and grind one's teeth in sleep between be provided with outage, body interior is provided with centre bore, it is characterized in that: the middle part of body is arranged with arc groove, the top of arc groove is provided with screw, the bottom of arc groove is provided with spherical groove, between spherical groove and body, be provided with blind hole, in blind hole, be provided with spring, spin is installed in the inside of described spherical groove, spin is passed through spring supporting, the outside of described arc groove is bolted fixed head, described fixed head is provided with screw and sphere hole, the diameter of described sphere hole is less than the diameter of spin, the outer wall of grinding one's teeth in sleep is provided with chip area.
Above-mentioned chip area is V character form structure.
The beneficial effects of the utility model are: simple in structure; easily manufacture; be applied to oil field oil, well milling operation; junk mill is shock-resistant; long service life; chip carries effective; improve job scheduling; increase crude output; body bottom is provided with to grind one's teeth in sleep and adopts YD alloy to remove to grind those the stuck iron and steel junks that cannot salvage comprehensively in well, the inner spin of having fixed centralizing function of fixed head, not milling internal surface of sleeve pipe when the inner fixing ball turns of fixed head is worked junk mill in well; protection body, the application life of prolongation sleeve pipe.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is structural representations of arc groove on body;
Accompanying drawing 3 is structural representations of the present utility model;
In upper figure: body 1, grind one's teeth in sleep 2, fixed head 3, bolt 4, spin 5, outage 6, centre bore 7, spring 8, arc groove 1.1, screw 1.2, blind hole 1.3, screw 3.1, sphere hole 3.2.
Detailed description of the invention
1-3 by reference to the accompanying drawings, the utility model will be further described:
The utility model comprises body 1, body 1 top is provided with internal thread, body 1 bottom is provided with grinds one's teeth in sleep 2, body and grind one's teeth in sleep between be provided with outage 6, body 1 inside is provided with centre bore 7, it is characterized in that: the middle part of body 1 is arranged with arc groove 1.1, the top of arc groove 1.1 is provided with screw 1.2, the bottom of arc groove 1.1 is provided with spherical groove, between spherical groove and body 1, be provided with blind hole 1.3, in blind hole 1.3, be provided with spring 8, spin 5 is installed in the inside of described spherical groove, spin 5 supports by spring 8, the outside of described arc groove 1.1 is connected and fixed plate 3 by bolt 4, described fixed head 3 is provided with screw 3.1 and sphere hole 3.2, the diameter of described sphere hole 3.2 is less than the diameter of spin 5, 2 outer walls of grinding one's teeth in sleep are provided with chip area 9, body rotates, not milling internal surface of sleeve pipe while junk mill being worked in well by the fixing ball turns of fixed head on body, extend the application life of sleeve pipe.
Wherein, chip area 9 is V character form structure, owing to adopting the wide structure in narrow base top, makes liquid slow at the flow velocity on top, and the flow velocity of bottom is fast, thereby is not easy to occur clogging, and then lengthen application life.
Of the present utility model simple in structure, easily manufacture, be applied to oil field oil, well milling operation, the junk mill life-span is long, and chip carries effective, improve job scheduling, increase crude output, body bottom is provided with to grind one's teeth in sleep and adopts YD alloy to remove to grind those the stuck iron and steel junks that cannot salvage comprehensively in well, the inner spin of having fixed centralizing function of fixed head, not milling internal surface of sleeve pipe when the inner fixing ball turns of fixed head is worked junk mill in well, the application life of prolongation sleeve pipe.
Claims (2)
1. a Novel oil well junk mill device, comprise body (1), body (1) top is provided with internal thread (2), body (1) bottom is provided with grind one's teeth in sleep (2), body and grind one's teeth in sleep between be provided with outage, body (1) inside is provided with centre bore (7), it is characterized in that: the middle part of body (1) is arranged with arc groove (1.1), the top of arc groove (1.1) is provided with screw (1.2), the bottom of arc groove (1.1) is provided with spherical groove, between spherical groove and body (1), be provided with blind hole (1.3), in blind hole (1.3), be provided with spring (8), spin (5) is installed in the inside of described spherical groove, spin (5) supports by spring (8), the outside of described arc groove (1.1) is connected and fixed plate (3) by bolt (4), described fixed head (3) is provided with screw (3.1) and sphere hole (3.2), the diameter of described sphere hole (3.2) is less than the diameter of spin (5), grinding one's teeth in sleep, (20 outer walls are provided with chip area (9).
2. Novel oil well according to claim 1 junk mill device, is characterized in that: described chip area (9) is V character form structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420157067.1U CN203756097U (en) | 2014-04-02 | 2014-04-02 | Novel milling shoe device for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420157067.1U CN203756097U (en) | 2014-04-02 | 2014-04-02 | Novel milling shoe device for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756097U true CN203756097U (en) | 2014-08-06 |
Family
ID=51251384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420157067.1U Expired - Fee Related CN203756097U (en) | 2014-04-02 | 2014-04-02 | Novel milling shoe device for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927383A (en) * | 2020-09-17 | 2020-11-13 | 东营市正能石油科技有限公司 | Packer for water injection well of oil field |
-
2014
- 2014-04-02 CN CN201420157067.1U patent/CN203756097U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927383A (en) * | 2020-09-17 | 2020-11-13 | 东营市正能石油科技有限公司 | Packer for water injection well of oil field |
| CN111927383B (en) * | 2020-09-17 | 2020-12-11 | 东营市正能石油科技有限公司 | Packer for water injection well of oil field |
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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 |
Granted publication date: 20140806 Termination date: 20150402 |
|
| EXPY | Termination of patent right or utility model |