CN202866721U - Compound combination washover catch sleeve - Google Patents
Compound combination washover catch sleeve Download PDFInfo
- Publication number
- CN202866721U CN202866721U CN 201220415389 CN201220415389U CN202866721U CN 202866721 U CN202866721 U CN 202866721U CN 201220415389 CN201220415389 CN 201220415389 CN 201220415389 U CN201220415389 U CN 201220415389U CN 202866721 U CN202866721 U CN 202866721U
- Authority
- CN
- China
- Prior art keywords
- catch sleeve
- compound combination
- fishing socket
- inner hole
- milling
- 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
Links
Abstract
A compound combination milling catch sleeve comprises a washover pipe (1), grinding teeth (2), a connector (3), a catch sleeve body (4), a slip (5), clamping teeth (6) and a guiding shoe (7). The compound combination milling catch sleeve is characterized in that the compound combination milling catch sleeve is of a cylinder-shape barrel structure, the upper end and the lower end of the washover pipe (1) are respectively provided with external pipe threads, and the tungsten carbide alloy grinding teeth (2) are embedded on the inner hole wall at the lower end. The upper end of the connector (3) is in threaded connection with the washover pipe (1), the lower end of the connector (3) is in threaded connection with the catch sleeve body (4), the lower end of the catch sleeve body (4) is provided with a taper inner hole and the slip (5), the inner hole wall of the lower end of the slip (5) is provided with sawtooth clamping teeth (6), and the lower end of the catch sleeve body (4) is in threaded connection with the guiding shoe (7). The compound combination milling catch sleeve can enable milling salvage to be succeeded once, reduce underground accidents, save materials and manpower, reduce production cost, shorten work well-occupied periods, lower labor intensity of worker, and improve economical benefits of enterprises.
Description
Technical field
The utility model relates to oil field oil, well underground operation tool, and specifically a kind of underground work duplex cover mills fishing socket.
Background technology
In the oil-water well operation repair procedures, underground work is in the time can't normally salvaging the top of fish junks such as oil pipe body that damage in the well, often adopt printing to implement top of fish, milling damage fish head, print the mode of judging the top of fish situation, salvaging processing, this way existing problems have: the one, increased construction sequence, and implement top of fish, milling and damage the fish head, print and judge the top of fish situation, salvage four steps of junk and finish because the top of fish complexity has to adopt print; The 2nd, long construction period is because increasing of construction sequence prolonged the engineering time; The 3rd, strengthened construction labour intensity; The 4th, the loss and the cost that have increased instrument drop into; The 5th, easily make accident complicated, because sometimes milling is not thorough, can cause the more salvaging difficulty of chip; Milling is not thorough or oil pipe is amesiality can't salvage, and causes accident more complicated.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, provides a kind of duplex cover to mill fishing socket.
The utility model comprises: casing section mill, grind one's teeth in sleep, joint, fishing socket, slips, card tooth, guide shoe.It is the cylindrical tube body structure that its duplex cover mills fishing socket, casing section mill upper end, lower end are equipped with external pipe thread, and the lower end inner hole wall studs with diamondite and grinds one's teeth in sleep, on the joint with casing section mill, lower be threaded with fishing socket, the fishing socket lower end is provided with taper inner, slips is housed, and slips lower end inner hole wall is provided with the sawtooth card tooth, the fishing socket lower end guide shoe that is being threaded.
The beneficial effects of the utility model are: can overlap and mill once success of salvaging, reduce down-hole accident, economical with materials and manpower reduce production costs, and shorten operation and account for the well cycle, alleviate worker's labour intensity, improve Business Economic Benefit.
Can make the down-hole milling operation bore plug,, the drifting integrated process finishes,
Description of drawings
Accompanying drawing is that the utility model master looks the broken section structural representation.
Among the figure, 1. casing section mill is 2. ground one's teeth in sleep, 3. joint, 4. fishing socket, 5. slips, 6. card tooth, 7. guide shoe.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment further describes to the utility model:
The duplex cover mill fishing socket by casing section mill 1, grind one's teeth in sleep 2, joint 3, fishing socket 4, slips 5, card tooth 6, guide shoe 7 forms.It is the cylindrical tube body structure that its duplex cover mills fishing socket, casing section mill 1 upper end, lower end are equipped with external pipe thread, and the lower end inner hole wall studs with diamondite and grinds one's teeth in sleep 2, on the joint 3 with casing section mill 1, lower be threaded with fishing socket 4, fishing socket 4 lower ends are provided with taper inner, slips 5 is housed, and slips 5 lower end inner hole walls are provided with sawtooth card tooth 6, the fishing socket 4 lower ends guide shoe 7 that is being threaded.
Method of operating
At first, according to casing section mill 1 G.I.H of OIH length of tube selection suitable length, the instrument guide shoe is introduced junk in the well, continues to deepen tubing string and utilizes pump truck liquid stream to wash the oil sets annular space sand setting open, until wash out pit shaft.
Secondly, the rotation drilling tool, cover mills top of fish, when dipper is incorporated into second oil pipe joint hoop, be incorporated into slips 5 through guide shoe 7, slips 5 male cone (strobilus masculinus)s and fishing socket 4 inner conical surfaces are thrown off, and slips 5 is forced to distending, and junk enters in the slips 5, on carry drill string, slips 5 is shunk blocks junk, realize salvaging operation.
Claims (1)
1. a duplex cover mills fishing socket, comprising: casing section mill (1), grind one's teeth in sleep (2), joint (3), fishing socket (4), slips (5), card tooth (6), guide shoe (7); It is characterized in that: it is the cylindrical tube body structure that described duplex cover mills fishing socket, casing section mill (1) upper end, lower end are equipped with external pipe thread, and the lower end inner hole wall studs with diamondite grind one's teeth in sleep (2), joint (3) is gone up with casing section mill (1), is threaded with fishing socket (4) down, fishing socket (4) lower end is provided with taper inner, slips (5) is housed, and slips (5) lower end inner hole wall is provided with sawtooth card tooth (6), fishing socket (4) the lower end guide shoe (7) that is being threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220415389 CN202866721U (en) | 2012-08-21 | 2012-08-21 | Compound combination washover catch sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220415389 CN202866721U (en) | 2012-08-21 | 2012-08-21 | Compound combination washover catch sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202866721U true CN202866721U (en) | 2013-04-10 |
Family
ID=48033447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220415389 Expired - Fee Related CN202866721U (en) | 2012-08-21 | 2012-08-21 | Compound combination washover catch sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202866721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116146135A (en) * | 2023-04-23 | 2023-05-23 | 中石化西南石油工程有限公司 | A cover and drag for integrated device that is used for constant pressure trap plugging tool fish of well drilling |
-
2012
- 2012-08-21 CN CN 201220415389 patent/CN202866721U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116146135A (en) * | 2023-04-23 | 2023-05-23 | 中石化西南石油工程有限公司 | A cover and drag for integrated device that is used for constant pressure trap plugging tool fish of well drilling |
| CN116146135B (en) * | 2023-04-23 | 2023-07-21 | 中石化西南石油工程有限公司 | A cover and drag for integrated device that is used for constant pressure trap plugging tool fish of well drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20130821 |