CN203939474U - Tubing litter latch jack - Google Patents
Tubing litter latch jack Download PDFInfo
- Publication number
- CN203939474U CN203939474U CN201420286948.3U CN201420286948U CN203939474U CN 203939474 U CN203939474 U CN 203939474U CN 201420286948 U CN201420286948 U CN 201420286948U CN 203939474 U CN203939474 U CN 203939474U
- Authority
- CN
- China
- Prior art keywords
- female coupling
- milling shoe
- coupling tap
- tubing
- cylindrical shell
- 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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- Earth Drilling (AREA)
Abstract
The utility model relates to a kind of tubing litter latch jack, belongs to oil well repairing operation tubing falling object fishing tool technical field.Be made up of female coupling tap, cylindrical shell, large milling shoe, little milling shoe, female coupling tap upper end is provided with connecting thread, and female coupling tap inner chamber is provided with thread making screw thread, female coupling tap and barrel soldering, and cylinder inboard wall is welded with little milling shoe, and cylindrical shell lower end is welded with large milling shoe.The beneficial effects of the utility model are the combinations by utilizing milling shoe and female coupling tap, solve in well workover process seriously break, salvaging problem that distortion and the bending of S type fall well casing post, can realize and once complete cover milling, salvage operation, easy to operate, improve efficiency of construction, save operating cost.
Description
Technical field
The utility model relates to a kind of tubing litter latch jack, belongs to oil well repairing operation tubing falling object fishing tool technical field.
Background technology
In well workover process; often can run into that well casing post seriously breaks, the phenomenon such as distortion and the bending of S type; must take junk out of ground by salvaging; the general conventional instruments such as lower casing section mill that adopt of traditional treatment process overlap milling operation, and because falling the distortion of well tubing bending seriously, cover milling difficulty is large; even destroying top of fish and oil pipe causes complicated; there will be the even invalid phenomenon of poor efficiency of repeatedly salvaging, strengthened labour intensity, increased operating cost.
The patent No. 201120399663.7 discloses a kind of oil pipe salvaging device.There is external screw thread its main body upper end, and there is the internal thread matching with oil pipe main body lower end, in main body, be connected with positive column, and be conical to positive column lower end, positive column bottom is had and the oil pipe endoporus conical inclined-plane that draws that matches.The utility model is simple to operate.In the indeformable well of well casing post, use falling, salvage effect better, but falling that well casing post seriously breaks, distortion and the bending of S type salvage, effect is undesirable.
Summary of the invention
The purpose of this utility model is the defect in order to overcome in above-mentioned prior art the tubing junk inefficiency of salvaging gross distortion, breaking, providing one can realize cover milling creeps into, can carry out again the combination workover tool of tubing fishing junk, shorten the well workover time, alleviated labour intensity.
The utility model is made up of female coupling tap, cylindrical shell, large milling shoe, little milling shoe, and female coupling tap upper end is provided with connecting thread, and female coupling tap inner chamber is provided with thread making screw thread, female coupling tap and barrel soldering, and cylinder inboard wall is welded with little milling shoe, and cylindrical shell lower end is welded with large milling shoe.
The beneficial effects of the utility model are the combinations by utilizing milling shoe and female coupling tap, solve in well workover process seriously break, salvaging problem that distortion and the bending of S type fall well casing post, can realize and once complete cover milling, salvage operation, easy to operate, improve efficiency of construction, save operating cost.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Detailed description of the invention
As shown in Figure 1, the utility model is made up of female coupling tap 1, cylindrical shell 2, large milling shoe 4, little milling shoe 3, and female coupling tap 1 upper end is provided with connecting thread 5, and female coupling tap 1 inner chamber is provided with thread making screw thread 6, and female coupling tap 1 welds with cylindrical shell 2, and cylindrical shell 2 lower ends are welded with large milling shoe 4.
The connecting thread 5 of described female coupling tap 1 and thread making screw thread 6 are screw thread in the same way.
On described cylindrical shell 2 inwalls, be welded with little milling shoe 3, the internal diameter of little milling shoe 3 equals female coupling tap 1 maximum inner diameter, can carry out secondary reparation to the top of fish damaging.
Described large milling shoe 4, little milling shoe 3 lower surfaces are matrix or platybasic type.
When to breaking, distortion, when bending tubing junk overlaps milling salvaging, connecting thread 5 of the present utility model is connected with top tubing string, while being hampered, start rotating disk, large milling shoe 4 carries out preliminary reparation to the top of fish damaging to be introduced, introduce after little milling shoe 3 at top of fish, little milling shoe 3 carries out secondary reparation introducing to the top of fish damaging, top of fish is introduced into and enters female coupling tap 1 inner chamber thread making screw thread 6 positions after little milling shoe 3 and carry out thread making, can be dragged for and be obtained, break thereby complete to salvage, distortion, the object of bending tubing junk, simplify flow chart, guarantee salvaging efficiency.
Claims (4)
1. tubing litter latch jack, formed by female coupling tap (1), cylindrical shell (2), large milling shoe (4), little milling shoe (3), it is characterized in that: female coupling tap (1) upper end is provided with connecting thread (5), female coupling tap (1) inner chamber is provided with thread making screw thread (6), female coupling tap (1) and cylindrical shell (2) welding, cylindrical shell (2) lower end is welded with large milling shoe (4).
2. tubing litter latch jack according to claim 1, is characterized in that: the connecting thread (5) of described female coupling tap (1) and thread making screw thread (6) are screw thread in the same way.
3. tubing litter latch jack according to claim 1 and 2, it is characterized in that: on described cylindrical shell (2) inwall, be welded with little milling shoe (3), the internal diameter of little milling shoe (3) equals female coupling tap (1) maximum inner diameter, can carry out secondary reparation to the top of fish damaging.
4. tubing litter latch jack according to claim 1 and 2, is characterized in that: described large milling shoe (4), little milling shoe (3) lower surface are matrix or platybasic type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286948.3U CN203939474U (en) | 2014-05-30 | 2014-05-30 | Tubing litter latch jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286948.3U CN203939474U (en) | 2014-05-30 | 2014-05-30 | Tubing litter latch jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939474U true CN203939474U (en) | 2014-11-12 |
Family
ID=51858797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420286948.3U Expired - Fee Related CN203939474U (en) | 2014-05-30 | 2014-05-30 | Tubing litter latch jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869849A (en) * | 2017-02-21 | 2017-06-20 | 中国石油集团渤海钻探工程有限公司 | Set milling fishing integrated tool and its fishing method |
-
2014
- 2014-05-30 CN CN201420286948.3U patent/CN203939474U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869849A (en) * | 2017-02-21 | 2017-06-20 | 中国石油集团渤海钻探工程有限公司 | Set milling fishing integrated tool and its fishing method |
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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: 20141112 Termination date: 20200530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |