CN2720090Y - Grind shoe for finishing casing-tube path and fixing lining tube - Google Patents
Grind shoe for finishing casing-tube path and fixing lining tube Download PDFInfo
- Publication number
- CN2720090Y CN2720090Y CN 200420031151 CN200420031151U CN2720090Y CN 2720090 Y CN2720090 Y CN 2720090Y CN 200420031151 CN200420031151 CN 200420031151 CN 200420031151 U CN200420031151 U CN 200420031151U CN 2720090 Y CN2720090 Y CN 2720090Y
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- CN
- China
- Prior art keywords
- sleeve tube
- grind
- well
- tube
- utility
- 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 - Fee Related
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- Crushing And Grinding (AREA)
Abstract
The utility model relates to a grind shoe for finishing sleeve tube paths and fixing lining tubes. The sleeve tube in a well is seriously damaged, because the thick oil is mined by injecting steam and the injection time of the oil well is increased. The sleeve tube in the prior art is repaired only by a casing roller or a milling cone tool, which easily aggravates the damage of the sleeve tube and is easy to make the milling cone get out of the sleeve. The utility model adopts a shaft core grind shoe and a guide perch structure for the purpose. The tool is lowered in the dislocation channel of the well to grind the sleeve tube when used. If the grinding does not go down, the grinding guide perch is inserted into the wrong mouth and does not grind to prevent the sleeve tube from being ground in deflection way. Because the device has simple structure and easy use, the device can be widely used to repair the well sleeve tube for the oil field operation.
Description
Technical field:
The utility model relates to a kind of sleeve channel finishing and bushing pipe reinforcing junk mill of being used for, and belongs to oilfield downhole operation instrument class.
Background technology:
At present, exploitation along with thick oil filling steam, the handle up increase of round of oil well, well inner sleeve infringement phenomenon is on the rise, cause great loss for the exploration and development in oil field, existing technology only relies on tube expander expand tube or employing to mill the awl instrument to the reparation of sleeve pipe and finishes, and this mode is easy to aggravate the damage of sleeve pipe or the drawback of boring out cover occurs milling.
The utility model content:
The purpose of this utility model is in order to overcome above-mentioned shortcoming, and a kind of sleeve channel finishing that provides and bushing pipe are reinforced junk mill, can be in the repairing casing process, and prevent and repair the cover instrument and go out cover and mill cover phenomenon.Thereby play the effect of protective casing.
The utility model implementation is:
Junk mill described in the utility model advances by mandrel, junk mill and guide bar to form.
Described mandrel profile is a hexahedron, in free edema with the heart involved eye is arranged.
The utility model is compared with existing technology, has distinguishing feature:
Because the structure that the utility model has adopted mandrel junk mill and guide rod to form, the bad break well hole enlargement that can be used in Φ 70～105mm damage sleeve pipe is got through, the utility model can be used in combination with knuckle or the pressure of the drill controller, during work, whether the milling size normally can be judged from the drilling depth of junk mill guide rod, this instrument can prevent and repair the drawback that the cover instrument causes instrument to go out to overlap in sleeve pipe when the milling sleeve pipe in addition.
Description of drawings:
Figure is the utility model structural representation.
The specific embodiment:
The utility model is provided by following examples.
Below in conjunction with accompanying drawing the utility model is illustrated.
Among the figure by mandrel 1,, 2, junk mill, 3, guide rod forms.
Shown in the figure: mandrel 1 upper end skin is the hexahedron hollow shaft, the mandrel endoporus has hydrophthalmia, be between six sides in outer hexahedron and the junk mill 2 and be slidingly matched, junk mill 2 can be along mandrel 1 upper and lower flexible motion, and can transmit torque from mandrel 1, junk mill 2 lower external thread and guide bar 3 join, but at the male cone (strobilus masculinus) of junk mill 2 with protect the alternate iron chains of path portion and be welded with hard alloy columnar and support Lip river according to welding rod; But the bottom is welded with carbide alloy and support Lip river according to welding rod, and this junk mill is to be used for implementing down-hole casing is damaged the hole enlargement of well section and gets through cutwork.
The utility model working method is:
The movable junk mill drill string that at first will connect is lowered into the distortion of well inner sleeve, bad break mouth position, if movable junk mill guide rod 3 is inserted in the passage of cover damage, junk mill 2 is hampered, mandrel 1 upwards slided and entered into mandrel 1 six square bar positions relatively this moment, if this moment rotary drill column, then six sides drive junk mill 2 carries out normal milling in the mandrel; If milling is drilling depth not, drill string idle running explanation junk mill guide rod 3 is not inserted in the dislocation fracture, and the junk mill body does not reach six square bar positions yet, does not play the milling effect.
Claims (2)
1, a kind ofly is used for sleeve channel finishing and bushing pipe is reinforced junk mill, it is characterized in that described junk mill is made up of mandrel (1), junk mill (2), guide bar (3).
2, a kind of sleeve channel finishing and bushing pipe reinforcing junk mill of being used for according to claim 1 is characterized in that mandrel (1) profile is hexahedron, is free edema with the heart involved eye in the mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420031151 CN2720090Y (en) | 2004-04-10 | 2004-04-10 | Grind shoe for finishing casing-tube path and fixing lining tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420031151 CN2720090Y (en) | 2004-04-10 | 2004-04-10 | Grind shoe for finishing casing-tube path and fixing lining tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2720090Y true CN2720090Y (en) | 2005-08-24 |
Family
ID=35009051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420031151 Expired - Fee Related CN2720090Y (en) | 2004-04-10 | 2004-04-10 | Grind shoe for finishing casing-tube path and fixing lining tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2720090Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635323A (en) * | 2011-03-14 | 2012-08-15 | 大庆油田有限责任公司 | Moveable combination of guide rod and milling cone |
| CN101555775B (en) * | 2009-04-24 | 2013-01-30 | 东营北方石油装备有限公司 | Pilot milling cone tool for repairing casing and method thereof |
| CN104695887A (en) * | 2015-01-19 | 2015-06-10 | 中国石油大学(北京) | Low-friction sliding type tube expander |
| CN105545240A (en) * | 2015-12-11 | 2016-05-04 | 中国石油天然气股份有限公司 | Fracture tracer location channeling tool |
| CN111140201A (en) * | 2020-02-18 | 2020-05-12 | 盐城华亚石油机械制造有限公司 | Special paraffin removal mill shoe for horizontal well screw drilling tool |
-
2004
- 2004-04-10 CN CN 200420031151 patent/CN2720090Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555775B (en) * | 2009-04-24 | 2013-01-30 | 东营北方石油装备有限公司 | Pilot milling cone tool for repairing casing and method thereof |
| CN102635323A (en) * | 2011-03-14 | 2012-08-15 | 大庆油田有限责任公司 | Moveable combination of guide rod and milling cone |
| CN102635323B (en) * | 2011-03-14 | 2014-06-18 | 大庆油田有限责任公司 | Moveable combination of guide rod and milling cone |
| CN104695887A (en) * | 2015-01-19 | 2015-06-10 | 中国石油大学(北京) | Low-friction sliding type tube expander |
| CN105545240A (en) * | 2015-12-11 | 2016-05-04 | 中国石油天然气股份有限公司 | Fracture tracer location channeling tool |
| CN111140201A (en) * | 2020-02-18 | 2020-05-12 | 盐城华亚石油机械制造有限公司 | Special paraffin removal mill shoe for horizontal well screw drilling tool |
| CN111140201B (en) * | 2020-02-18 | 2022-04-26 | 盐城华亚石油机械制造有限公司 | Special paraffin removal mill shoe for horizontal well screw drilling tool |
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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 |