CN202731800U - Anti-stick well-drifting gauge - Google Patents
Anti-stick well-drifting gauge Download PDFInfo
- Publication number
- CN202731800U CN202731800U CN 201220177426 CN201220177426U CN202731800U CN 202731800 U CN202731800 U CN 202731800U CN 201220177426 CN201220177426 CN 201220177426 CN 201220177426 U CN201220177426 U CN 201220177426U CN 202731800 U CN202731800 U CN 202731800U
- Authority
- CN
- China
- Prior art keywords
- wall
- rail joint
- well
- size gauge
- gauge tool
- 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
An anti-stick well-drifting gauge is used for preventing a well-drifting gauge from being stuck in repairing a well in an oil field. A lower end thread of a well-drifting gauge body is connected with a rail connector. An outer wall of the rail connector is a circular conical surface; an anti-stick tank is sleeved on the outer wall of the rail connector; and the anti-stick tank is fixed on the rail connector through a pin. An inner wall of the anti-stick tank is a circular conical surface. The lower end of the rail connector is provided with an outer thread, and the lower end thread of the rail connector is connected with a guide body. The anti-stick well-drifting gauge can prevent a hidden danger that a well-drifting tubular column is stuck, improve an operation speed of well repairing, save operation cost, enable well-drifting processes to achieve high quality and high efficiency. The anti-stick well-drifting gauge also has the advantages of being reliable in usage and convenient to maintain.
Description
Technical field
The utility model relates to the oil well technical field, particularly a kind of down-hole special tool of well workover, be under a kind of lower going-into-well in the situation of wellbore casing distortion, the device that can prevent drift size gauge tool to be blocked.
Background technology
At present, in the oil field well workover operation construction, because the drift size gauge tool external diameter is relatively large, drift size gauge tool and oil jacket gap are very little, if have in addition that there are distortion in casing failure, casing deformation, small falling object, sand setting, mud sediment, well bore, drift size gauge tool fatigue is impaired, running speed is too fast and have the reason such as other wellbore quality, cause the drift size gauge tool lock of tool drilling to happen occasionally.Be generally this type of accident of solution and have to carry out oil well reconditioning service, both prolonged construction period, expend again a large amount of manpowers, financial resources.
The utility model content
The purpose of this utility model is: a kind of anti-sticking drift size gauge tool is provided, prevents that drift size gauge tool from being blocked, even drift size gauge tool is blocked also easily unfreezing.Improve operating speed, save operating cost, the high-quality of realization drifting operation, efficient.
The technical solution adopted in the utility model is: the anti-sticking drift size gauge tool, comprise guide way, anti-sticking cylinder, rail joint, pin and drift size gauge tool main body, it is characterized in that: the drift size gauge tool main body is that cylindrical has centre bore, there is the oil pipe internal thread upper end of drift size gauge tool main body, on the outer wall of drift size gauge tool main body helical groove is arranged, there is internal thread lower end in the drift size gauge tool main body, and the lower end screw thread of drift size gauge tool main body is connected with rail joint; Rail joint has centre bore, and the outer wall of rail joint is taper seat, at the outer wall of rail joint cover the anti-sticking cylinder is arranged, and by pin the anti-sticking cylinder is fixed on the rail joint; The anti-sticking drum outer wall is cylindrical, and anti-sticking cylinder inwall is taper seat, the identical parallel cooperation of tapering of the tapering of rail joint outer wall taper seat and anti-sticking cylinder circular conical surface of inner wall; There is external screw thread lower end at rail joint, the lower end of the rail joint guide way that is threaded, and guide way is that cylindrical has centre bore, the lower end outer wall of guide way has taper seat.
The operating principle of summary anti-sticking drift size gauge tool.Consult Fig. 1.The anti-sticking drift size gauge tool is connected to the lower end of oil pipe or drilling rod, in the strained situation of unknown sleeve pipe, G.I.H.When being hampered, blocked drift size gauge tool, by position, card division anti-sticking cylinder 2 normally.Carry the tubing string that blocked on only needing this moment, to move on the drift size gauge tool main body 5 behind load increase by 30～50kN, drift size gauge tool main body 5 relatively moves with anti-sticking cylinder 2, pin 4 is cut off, anti-sticking cylinder 2 moves down along rail joint 3, external diameter shrank and diminishes after the anti-sticking cylinder 2 that is blocked lost and supports, and drift size gauge tool just can unfreezing.
The beneficial effects of the utility model: the utility model anti-sticking drift size gauge tool, realized the anti-sticking drifting, the hidden danger of prevention cartoon well casing post improves operating speed, saves operating cost, the high-quality of realization drifting operation, efficient.This drift size gauge tool simplicity of design, reliable, the maintenance convenience of use.
Description of drawings
Fig. 1 is the utility model anti-sticking drift size gauge tool structural profile schematic diagram.
Among the figure, 1-guide way, 2-anti-sticking cylinder, 3-rail joint, 4-pin, 5-drift size gauge tool main body.
The specific embodiment
Embodiment 1: take an anti-sticking drift size gauge tool as example, the utility model is described in further detail.
Consult Fig. 1.The utility model anti-sticking drift size gauge tool comprises guide way 1, anti-sticking cylinder 2, rail joint 3, pin 4 and drift size gauge tool main body 5.
Drift size gauge tool main body 5 is for cylindrical has centre bore, and drift size gauge tool main body 5 external diameters are less than casing inner diameter 2mm, length 1500mm.There is API standard oil pipe internal thread the upper end of drift size gauge tool main body 5, on the outer wall of drift size gauge tool main body 5 helical groove is arranged.There is internal thread lower end in drift size gauge tool main body 5, and the lower end screw thread of drift size gauge tool main body 5 is connected with rail joint 3.Rail joint 3 has centre bore, and the outer wall of rail joint 3 is taper seat, and large lower end diameter is little between the upper end, and tapering is 20 degree.Outer wall cover at rail joint 3 has anti-sticking cylinder 2, by pin 4 anti-sticking cylinder 2 is fixed on the rail joint 3; Anti-sticking cylinder 2 outer walls are cylindrical, and anti-sticking cylinder 2 inwalls are taper seat, the identical parallel cooperation of tapering of the tapering of rail joint 3 outer wall taper seats and anti-sticking cylinder 2 circular conical surface of inner wall.There is external screw thread lower end at rail joint 3, the lower end of rail joint 3 guide way 1 that is threaded, and guide way 1 is for cylindrical has centre bore, and the lower end outer wall of guide way 1 has taper seat, and the tapering of guide way 1 lower end outer wall taper seat is 90 degree.
Claims (1)
1. anti-sticking drift size gauge tool, comprise guide way (1), anti-sticking cylinder (2), rail joint (3), pin (4) and drift size gauge tool main body (5), it is characterized in that: drift size gauge tool main body (5) has centre bore for cylindrical, there is the oil pipe internal thread upper end of drift size gauge tool main body (5), on the outer wall of drift size gauge tool main body (5) helical groove is arranged, there is internal thread lower end in drift size gauge tool main body (5), and the lower end screw thread of drift size gauge tool main body (5) is connected with rail joint (3); Rail joint (3) has centre bore, and the outer wall of rail joint (3) is taper seat, at the outer wall of rail joint (3) cover anti-sticking cylinder (2) is arranged, and by pin (4) anti-sticking cylinder (2) is fixed on the rail joint (3); Anti-sticking cylinder (2) outer wall is cylindrical, and anti-sticking cylinder (2) inwall is taper seat, the identical parallel cooperation of tapering of the tapering of rail joint (3) outer wall taper seat and anti-sticking cylinder (2) circular conical surface of inner wall; There is external screw thread lower end at rail joint (3), the lower end of rail joint (3) guide way (1) that is threaded, and guide way (1) is for cylindrical has centre bore, and the lower end outer wall of guide way (1) has taper seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220177426 CN202731800U (en) | 2012-04-24 | 2012-04-24 | Anti-stick well-drifting gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220177426 CN202731800U (en) | 2012-04-24 | 2012-04-24 | Anti-stick well-drifting gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202731800U true CN202731800U (en) | 2013-02-13 |
Family
ID=47657512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220177426 Expired - Fee Related CN202731800U (en) | 2012-04-24 | 2012-04-24 | Anti-stick well-drifting gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202731800U (en) |
-
2012
- 2012-04-24 CN CN 201220177426 patent/CN202731800U/en not_active Expired - Fee Related
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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: 20130213 Termination date: 20210424 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |