CN204663486U - A kind of rotary oil drain - Google Patents
A kind of rotary oil drain Download PDFInfo
- Publication number
- CN204663486U CN204663486U CN201520377255.XU CN201520377255U CN204663486U CN 204663486 U CN204663486 U CN 204663486U CN 201520377255 U CN201520377255 U CN 201520377255U CN 204663486 U CN204663486 U CN 204663486U
- Authority
- CN
- China
- Prior art keywords
- cell body
- rotation slips
- pressing cap
- slips
- spring
- 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.)
- Withdrawn - After Issue
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Abstract
A kind of rotary oil drain, oil leak hole is arranged at the bottom of interior pipe, oil leak hole installs sealing ring up and down, under oil leak hole, lower seal is installed, draining cover is connected with Internal Pipe Thread, draining cover covers oil leak hole, anti-rotation slips with spring is installed in the groove of cell body, pressure cap is installed on the top of cell body, lower pressing cap is installed in bottom, upper pressing cap, anti-rotation slips, spring, cell body, lower pressing cap is set with downwards on inner pipe from the top of interior pipe after being assembled into one, tubing coupling is connected with interior pipe top, spring makes anti-rotation slips be in expansion state, under enter sleeve pipe after anti-rotation slips be tightly attached on internal surface of sleeve pipe, itself and internal surface of sleeve pipe is made to there is frictional force, the lower convex clip that the upper convex clip of upper pressing cap and draining put forms clutch, cell body can not be rotated relatively with draining cover, the cross section of anti-rotation slips is at right angles trapezoidal, the wide base of right-angled trapezium is towards the center of cell body, the narrow base of right-angled trapezium is outside, rotating inner tube anti-rotation slips is locked on internal surface of sleeve pipe.
Description
Technical field
The utility model is the underground equipment of oil extraction in oil field, is a kind of rotary oil drain.
Background technology
Existing bleeder kind is a lot, as Chinese patent 96238554.9 " a kind of split type oil riser bleeder ", its brace type solution lock assembly upper carry oil pipe time will contact and draining with draining assembly, needing bleeder will be caused to open draining when carrying oil pipe when encountering new situation in operation operative error or process of going into the well, making operation unsuccessful.And for example, also there is the problem of above-mentioned patent in Chinese patent 00247456.5 " oil riser bleeder ".Operating worker operate miss is that all likely causes this type of bleeder opens draining because itself need the operation carrying oil pipe and the custom being difficult to change formed for many years in lower Tubing During Running.Chinese patent 00258996.6 " slip-type rotary drip ", slips can not radial direction open, and can not be stuck on sleeve pipe, so not draining, be that slips energy radial direction is opened and is stuck on sleeve pipe, after draining, slips can not be regained and card tubing string sometimes, causes the accident.And for example Chinese patent 201020617851.8 " tubing drain ", the frictional force produced between friction mechanism and sleeve pipe is leaned on to make lock tube 5 and interior pipe 3 produce relative motion ability draining, the frictional force produced between friction mechanism and sleeve pipe in the situation such as fouling, corrosion can not make lock tube 5 and interior pipe 3 produce relative motion, so there is the insecure problem of draining.For another example Chinese patent 2007200290118 " a kind of rotary oil drain ", its structure is simple, but its sealing shroud (5) and interior pipe (3) are for being threaded, lean on the frictional force produced between friction mechanism and sleeve pipe that connecting thread is released, because frictional force is very limited, add that again downhole tool exists the problem such as fouling, corrosion, cause the connecting thread of sealing shroud (5) and interior pipe (3) to get loose and can not the problem of draining very serious.
Summary of the invention
The purpose of this utility model is to provide a kind of rotary oil drain, makes draining cover be anchored on sleeve pipe, improves the reliability of bleeder.
The purpose of this utility model is achieved in that and comprises tubing coupling, upper pressing cap, anti-rotation slips, spring, cell body, interior pipe, lower pressing cap, draining cover, upper sealing ring, lower seal, oil leak hole is arranged at the bottom of interior pipe, sealing ring is installed on described oil leak hole, under described oil leak hole, lower seal is installed, draining cover is connected with Internal Pipe Thread, connecting thread is on sealing ring, draining cover covers upper sealing ring, oil leak hole, lower seal, the top of draining cover arranges lower convex clip, cell body arranges several groove, spring hole is set inside anti-rotation slips, spring is placed in described spring hole, anti-rotation slips with spring is installed in each groove of cell body, pressure cap is installed on the top of cell body, after upper pressing cap and cell body link into an integrated entity, upper pressing cap fastens the upper constraint sheet of anti-rotation slips, in the bottom of cell body, lower pressing cap is installed, after lower pressing cap and cell body link into an integrated entity, lower pressing cap fastens the lower constraint sheet of anti-rotation slips, the bottom of lower pressing cap arranges convex clip, upper pressing cap, anti-rotation slips, spring, cell body, lower pressing cap is set with downwards on inner pipe from the top of interior pipe after being assembled into one, tubing coupling is connected with interior pipe top, spring makes anti-rotation slips be in expansion state, the diameter of a circle of the outside formation of several anti-rotation slips is greater than the internal diameter of supporting oil well casing, under enter sleeve pipe after anti-rotation slips be tightly attached on internal surface of sleeve pipe, itself and internal surface of sleeve pipe is made to there is frictional force, upper convex clip and lower convex clip form clutch, after upper convex clip and lower convex clip fasten, cell body can not rotate relatively with draining cover, the cross section of anti-rotation slips is at right angles trapezoidal, the wide base of right-angled trapezium is towards the center of cell body, the narrow base of right-angled trapezium is outside, when anti-rotation slips be supported on internal surface of sleeve pipe rotates cell body time, the hypotenuse of anti-rotation slips and the intersection on wide base are at the contact aside of the groove with cell body, its contact wire moves inwards, anti-rotation slips rotates around contact wire simultaneously, after contact wire moves to groove-bottom inwards, anti-rotation slips is locked on internal surface of sleeve pipe.
The beneficial effects of the utility model are: during the utility model draining, on when carrying oil pipe anti-rotation slips be tightly attached on internal surface of sleeve pipe and temporarily can not move, make lower convex clip up with epirelief buckle integrator with interior pipe, ground is oil pipe again, revolving force passes to cell body through draining cover, the hypotenuse of anti-rotation slips and the contact aside of the intersection on wide base and the groove of cell body, its contact wire moves inwards, anti-rotation slips rotates around contact wire simultaneously, after contact wire moves to groove-bottom inwards, anti-rotation slips is made to be locked on internal surface of sleeve pipe, thus draining cover is maintained static, be equivalent to stamp back-up tong on draining cover, continue rotation pipeline, at draining cover with under the connecting thread effect of interior pipe, draining cover is poured out and is no longer covered oil leak hole, tubing and casing UNICOM realizes draining, therefore, the reliable draining of the utility model energy, overcome the deficiency of existing bleeder of the same type.
Accompanying drawing explanation
Fig. 1 is the assembling drawing of the utility model embodiment.
Fig. 2 is the profile after cutting open from A-A in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As seen from the figure, embodiment of the present utility model comprises tubing coupling 1, upper pressing cap 2, anti-rotation slips 3, spring 4, cell body 5, interior pipe 6, lower pressing cap 7, draining cover 10, upper sealing ring 11, lower seal 13, oil leak hole 12 is arranged at the bottom of interior pipe 6, sealing ring 11 is installed on described oil leak hole 12, under described oil leak hole 12, lower seal 13 is installed, (upper sealing ring 11, lower seal 13 is installed in cannelure on the inner tube 6), draining cover 10 is connected with interior pipe 6 line, connecting thread is on sealing ring 11, draining cover 10 covers upper sealing ring 11, oil leak hole 12, lower seal 13, highly pressurised liquid in interior pipe 6 can not be leaked, the top of draining cover 10 arranges lower convex clip 9, cell body 5 arranges several groove, spring hole is set inside anti-rotation slips 3, spring 4 is placed in described spring hole, anti-rotation slips 3 with spring 4 is installed in each groove of cell body 5, pressure cap 2 is installed on the top of cell body 5, after upper pressing cap 2 and cell body 5 link into an integrated entity, upper pressing cap 2 fastens the upper constraint sheet of anti-rotation slips 3, in the bottom of cell body 5, lower pressing cap 7 is installed, after lower pressing cap 7 and cell body 5 link into an integrated entity, lower pressing cap 7 fastens the lower constraint sheet of anti-rotation slips 3, the bottom of lower pressing cap 7 arranges convex clip 8, upper pressing cap 2, anti-rotation slips 3, spring 4, cell body 5, lower pressing cap 7 is set with downwards on the inner tube 6 from the top of interior pipe 6 after being assembled into one, interior pipe 6 be oil tube external thread up and down, tubing coupling 1 is connected with interior pipe 6 top, top of the present utility model is made to be internal thread, bottom is external screw thread, be convenient to be arranged on pumping pipe string, spring 4 makes anti-rotation slips 3 be in expansion state, the diameter of a circle of the outside formation of several anti-rotation slips 3 is greater than the internal diameter of supporting oil well casing, under enter sleeve pipe after anti-rotation slips 3 be tightly attached on internal surface of sleeve pipe, itself and internal surface of sleeve pipe is made to there is frictional force, upper convex clip 8 forms clutch with lower convex clip 9, after upper convex clip 8 fastens with lower convex clip 9, cell body 5 and draining overlap 10 and can not relatively rotate, the cross section of anti-rotation slips 3 is at right angles trapezoidal, the wide base of right-angled trapezium is towards the center of cell body 5, the narrow base of right-angled trapezium is outside, when anti-rotation slips 3 is rotated cell body 5 on internal surface of sleeve pipe by spring supporting, (revolving force drives draining to overlap 10 by interior pipe 6, through upper convex clip 8, lower convex clip 9 passes to cell body 5), the contact aside of the groove of the hypotenuse of anti-rotation slips 3 and the intersection on wide base and cell body 5, move inwards along with its contact wire is carried out in rotation, anti-rotation slips 3 rotates around contact wire simultaneously, after contact wire moves to groove-bottom inwards, anti-rotation slips 3 is made to be locked on internal surface of sleeve pipe, upper convex clip 8 can not rotate again, draining cover 10 can not rotate, rotation pipeline is continued on ground, the connecting thread that interior pipe 6 and draining overlap 10 releases, make draining overlap 10 and no longer cover oil leak hole 12, realize draining.
For convenience of description, the cross section of anti-rotation slips 3 is described as right-angled trapezium, in fact the outside of anti-rotation slips 3 is circular arc, arc radius with under to enter the sleeve pipe radius of oil well identical.The outside of anti-rotation slips 3 also machined vertical-shaped anti-skid teeth, is convenient to better be anchored on sleeve pipe.
Claims (1)
1. a rotary oil drain, comprise tubing coupling (1), upper pressing cap (2), anti-rotation slips (3), spring (4), cell body (5), interior pipe (6), lower pressing cap (7), draining cover (10), upper sealing ring (11), lower seal (13), oil leak hole (12) is arranged at the bottom of interior pipe (6), sealing ring (11) is installed on described oil leak hole (12), lower seal (13) is installed under described oil leak hole (12), draining cover (10) is threaded with interior pipe (6), connecting thread is on sealing ring (11), sealing ring (11) in draining cover (10) covering, oil leak hole (12), lower seal (13), the top of draining cover (10) arranges lower convex clip (9), cell body (5) arranges several groove, in anti-rotation slips (3) inner side, spring hole is set, spring (4) is placed in described spring hole, anti-rotation slips (3) with spring (4) is installed in each groove of cell body (5), pressure cap (2) is installed on the top of cell body (5), after upper pressing cap (2) and cell body (5) link into an integrated entity, upper pressing cap (2) fastens the upper constraint sheet of anti-rotation slips (3), in the bottom of cell body (5), lower pressing cap (7) is installed, after lower pressing cap (7) and cell body (5) link into an integrated entity, lower pressing cap (7) fastens the lower constraint sheet of anti-rotation slips (3), the bottom of lower pressing cap (7) arranges convex clip (8), upper pressing cap (2), anti-rotation slips (3), spring (4), cell body (5), lower pressing cap (7) is sleeved on interior pipe (6) downwards from the top of interior pipe (6) after being assembled into one, tubing coupling (1) is connected with interior pipe (6) top, spring (4) makes anti-rotation slips (3) be in expansion state, the diameter of a circle of the outside formation of several anti-rotation slips (3) is greater than the internal diameter of supporting oil well casing, under enter sleeve pipe after anti-rotation slips (3) be tightly attached on internal surface of sleeve pipe, itself and internal surface of sleeve pipe is made to there is frictional force, upper convex clip (8) and lower convex clip (9) form clutch, after upper convex clip (8) and lower convex clip (9) fasten, cell body (5) can not rotate relatively with draining cover (10), it is characterized in that: the cross section of anti-rotation slips (3) is at right angles trapezoidal, the wide base of right-angled trapezium is towards the center of cell body (5), the narrow base of right-angled trapezium is outside, when anti-rotation slips (3) be supported on internal surface of sleeve pipe rotates cell body (5) time, the contact aside of the groove of the hypotenuse of anti-rotation slips (3) and the intersection on wide base and cell body (5), its contact wire moves inwards, anti-rotation slips (3) rotates around contact wire simultaneously, after contact wire moves to groove-bottom inwards, anti-rotation slips (3) is locked on internal surface of sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520377255.XU CN204663486U (en) | 2015-06-03 | 2015-06-03 | A kind of rotary oil drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520377255.XU CN204663486U (en) | 2015-06-03 | 2015-06-03 | A kind of rotary oil drain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204663486U true CN204663486U (en) | 2015-09-23 |
Family
ID=54133878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520377255.XU Withdrawn - After Issue CN204663486U (en) | 2015-06-03 | 2015-06-03 | A kind of rotary oil drain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204663486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863544A (en) * | 2015-06-03 | 2015-08-26 | 东营市创新石油技术开发有限公司 | Rotating oil drain device |
-
2015
- 2015-06-03 CN CN201520377255.XU patent/CN204663486U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863544A (en) * | 2015-06-03 | 2015-08-26 | 东营市创新石油技术开发有限公司 | Rotating oil drain device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150923 Effective date of abandoning: 20170503 |