CN203114222U - Washover shoe with drainage channel - Google Patents
Washover shoe with drainage channel Download PDFInfo
- Publication number
- CN203114222U CN203114222U CN 201220478452 CN201220478452U CN203114222U CN 203114222 U CN203114222 U CN 203114222U CN 201220478452 CN201220478452 CN 201220478452 CN 201220478452 U CN201220478452 U CN 201220478452U CN 203114222 U CN203114222 U CN 203114222U
- Authority
- CN
- China
- Prior art keywords
- washover
- shoe
- drainage channel
- milling shoe
- washover shoe
- 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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Abstract
The utility model provides a washover shoe with a drainage channel. The washover shoe with the drainage channel comprises a body and a washover shoe; and the lower part of the body is connected with the upper part of the washoever shoe. The washover shoe with the drainage channel is characterized in that the inner wall of the body is provided with the drainage channel which penetrates from the top of the body to the bottom of the washover shoe and extends outwards from the bottom of the washover shoe along the radial direction to reach the outer wall of the washover shoe. By the washover shoe with the drainage channel, the pumping pressure in the washover process is reduced, the circulating displacement is improved, a requirement on sand entrainment is met, the safety of the washover operation is improved, repeated washover is reduced, the washover speed is improved, trouble removal time is shortened, accident loss is reduced, and the washover shoe with the drainage channel is suitable for oil, gas and water well operation.
Description
Technical field
The utility model relates to milling shoe, is specifically related to a kind of milling shoe with drainage channels.
Background technology
During the drilling engineering down-hole accident is handled, often need cover to mill the cleaning annular space.Milling shoe bottom, inner surface, outer annular space crack are little, mill in the process at cover, have the problem that circulation canal is narrow, pump pressure is high, discharge capacity is little, and the influence cover mills speed, and is particularly outstanding when cover mills cement sheath.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of milling shoe with drainage channels.
In order to address the above problem, according to the technical solution of the utility model, milling shoe with drainage channels, comprise body and milling shoe, the bottom of body is connected with the top of milling shoe, is characterized in: the inwall at body is provided with rhone, and this rhone connects the bottom to milling shoe from the top of body, and extend radially outward in the bottom of milling shoe, connect the outer wall to milling shoe.Rhone is set has increased the passage of circulation, is conducive to reduce the pump pressure that cover mills process, improves the circulation discharge capacity, satisfies the requirement of band sand.
The beneficial effect of the junk mill of a kind of milling high-pressure glass steel oil pipe described in the utility model is: reduce the pump pressure that cover mills process, improve the circulation discharge capacity, satisfy the requirement of band sand, be conducive to improve the safety that cover mills operation, and reduce to repeat to overlap and mill, improve cover and mill speed, shorten the accident treatment time, reduce causality loss, be fit to very much oil, gas, well operation use.
Description of drawings
Fig. 1 is the structural representation of the described milling shoe with drainage channels of the utility model embodiment.
Fig. 2 is the polycrystalline substance schematic diagram of milling shoe 2 among Fig. 1.
The specific embodiment
A kind of milling shoe with drainage channels, comprise body 1 and milling shoe 2, the bottom of body 1 is connected with the top of milling shoe 2, inwall at body 1 is provided with rhone 3, this rhone 3 connects to the bottom of milling shoe 2 from the top of body 1, and extend radially outward in the bottom of milling shoe 2, connect to the outer wall of milling shoe 2.The quantity of rhone 3 can be set according to the size of body 1, can be 2,3,4,5 etc.
During concrete the use, milling shoe 2 connects with drilling tool by body 1, rotates to overlap by drilling tool rotation drive milling shoe and mills operation.
Claims (1)
1. milling shoe with drainage channels, comprise body (1) and milling shoe (2), the bottom of body (1) is connected with the top of milling shoe (2), it is characterized in that: the inwall at body (1) is provided with rhone (3), this rhone (3) connects to the bottom of milling shoe (2) from the top of body (1), and extend radially outward in the bottom of milling shoe (2), connect to the outer wall of milling shoe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220478452 CN203114222U (en) | 2012-09-19 | 2012-09-19 | Washover shoe with drainage channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220478452 CN203114222U (en) | 2012-09-19 | 2012-09-19 | Washover shoe with drainage channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114222U true CN203114222U (en) | 2013-08-07 |
Family
ID=48894582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220478452 Expired - Fee Related CN203114222U (en) | 2012-09-19 | 2012-09-19 | Washover shoe with drainage channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803012A (en) * | 2021-09-09 | 2021-12-17 | 中石化石油工程技术服务有限公司 | Method for completing horizontal well casing milling by utilizing sawtooth type casing milling shoe |
-
2012
- 2012-09-19 CN CN 201220478452 patent/CN203114222U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803012A (en) * | 2021-09-09 | 2021-12-17 | 中石化石油工程技术服务有限公司 | Method for completing horizontal well casing milling by utilizing sawtooth type casing milling shoe |
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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: 20130807 Termination date: 20150919 |
|
| EXPY | Termination of patent right or utility model |