CN209053587U - A kind of rotary oil drain - Google Patents
A kind of rotary oil drain Download PDFInfo
- Publication number
- CN209053587U CN209053587U CN201821916630.3U CN201821916630U CN209053587U CN 209053587 U CN209053587 U CN 209053587U CN 201821916630 U CN201821916630 U CN 201821916630U CN 209053587 U CN209053587 U CN 209053587U
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- China
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- sealing shroud
- inner tube
- turnover panel
- top connection
- anchoring device
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Abstract
A kind of rotary oil drain, there is oil leak hole in inner tube, top connection is connect with inner tube, sealing shroud is sleeved on the lower part of top connection and the top of inner tube, the sealing shroud covering oil leak hole, there is upper seal between the lower part and sealing shroud of top connection, there is lower seal between the top and sealing shroud of inner tube, suit opening lock ring in the upper, annular slot of turnover panel anchoring device, having in the lower part of sealing shroud can be with the locked groove of opening lock ring cooperation, the internal screw thread oppositely oriented with the upper internal threaded of top connection is arranged at the top of turnover panel anchoring device, there is the external screw thread oppositely oriented with the upper internal threaded of top connection in inner tube, the external screw thread is screwed with the internal screw thread, the spline of the lower part of the spline and sealing shroud on the top of turnover panel anchoring device is plugged in together, sealing shroud is linked together with turnover panel anchoring device by shear pin, the top of sealing shroud is provided with anti- Turn trough, anti-rotation pin are inserted into top connection through the anti-rotation groove, can match with Y221 packer, can guarantee that oil well normally produces.
Description
Technical field
The utility model is the underground equipment of oil extraction in oil field, is a kind of rotary oil drain.
Background technique
There are many existing bleeder type, such as Chinese patent 96238554.9 " a kind of split type oil riser bleeder ", it
Brace type solution lock assembly it is upper mention oil pipe when will be contacted and draining with draining assembly, when operation worker operation make mistakes or go into the well
Encounter in the process and will result in bleeder opening draining when new situation needs to mention oil pipe, keeps operation unsuccessful.For another example China is special
The problem of sharp 00247456.5 " oil riser bleeder ", there is also above-mentioned patents.Operating worker operation error is because of lower oil pipe
The habit for being difficult to change for needing the operation for mentioning oil pipe in itself in the process and forming for many years, is likely to cause such let out
The opening draining of oily device.Chinese patent 00258996.6 " slip-type rotary drip ", slips is not radially expanded, and cannot be stuck in
It is both that slips can be radially expanded and is stuck on casing, slips cannot withdraw sometimes and block pipe after draining so not draining on casing
Column causes the accident.For another example Chinese patent 201020617851.8 " tubing drain " will be generated frictionally between mechanism and casing
Frictional force make lock tube 5 and inner tube 3 generate relative motion could draining, friction mechanism and casing when fouling, corrosion
Between the frictional force that generates lock tube 5 and inner tube 3 cannot be made to generate relative motion, so there are the insecure problems of draining.For another example
Chinese patent 2007200290118 " a kind of rotary oil drain ", its structure is simple, but its sealing shroud (5) is with inner tube (3)
It is threadedly coupled, the frictional force frictionally to generate between mechanism and casing makes connection screw thread release, close since frictional force is very limited
The problem of connection screw thread of big envelope (5) and inner tube (3) can not loosen and be unable to draining is very serious.There are also Chinese patents
2015102984917 " a kind of rotary oil drains " cannot be matched with Y221 type packer, because of Y221 type packer setting
When above to mention oil pipe rotation pipeline again, Y221 type identical as operation when a kind of 2015102984917 " rotary oil drain " draining
Bleeder may be caused to act and draining when packer setting, make to pump oil pipe connection and cause oil well not fuel-displaced.
Summary of the invention
The purpose of the utility model is to provide a kind of rotary oil drains, overcome the shortcomings of above-mentioned several bleeders, make under it
Well and while matching with Y221 packer, will not shift to an earlier date draining, improve the reliability of bleeder.
Purpose of the utility model is realized as follows: including top connection, anti-rotation pin, upper seal, lower seal, close
Oil pipe internal screw thread is arranged at big envelope, opening lock ring, shear pin, turnover panel anchoring device, inner tube, the top of top connection, and oil is arranged at the lower part of inner tube
Pipe external screw thread has oil leak hole under the top screw thread of inner tube, and the lower part of top connection and the top of inner tube connect, the lower part of top connection
Outer diameter is greater than the top outer diameter of inner tube, and sealing shroud is sleeved on the lower part of top connection and the top of inner tube and cooperates with it, sealing shroud
The covering oil leak hole, has upper seal, upper seal is in the oil leak hole between the lower part and sealing shroud of top connection
On, there is lower seal between the top and sealing shroud of inner tube, lower seal is under the oil leak hole, turnover panel anchoring dress
Opening lock ring is set in the upper, annular slot set, having in the lower part of sealing shroud can be with the locked groove of opening lock ring cooperation, turnover panel anchoring
The internal screw thread oppositely oriented with the upper internal threaded of top connection is arranged at the top of device, there is the upper internal threaded with top connection in inner tube
Oppositely oriented external screw thread, the external screw thread are screwed with the internal screw thread, and spline is arranged at the top of turnover panel anchoring device, sealing
Spline is arranged at the lower part of set, and the spline of the lower part of the spline and sealing shroud on the top of turnover panel anchoring device is plugged in together, makes
It can only be moved to axial between sealing shroud and turnover panel anchoring device, be unable to relative rotation, the lower part of sealing shroud and turnover panel are anchored
It is linked together between the top of device by shear pin, the locked groove is on opening lock ring, and the top of sealing shroud is provided with anti-
Turn trough, anti-rotation pin are inserted into top connection through the anti-rotation groove, make sealing shroud relative to top connection mobile abjection axially downwards
It could relative rotation after anti-rotation pin.
The beneficial effects of the utility model are: shear pin is cut when forming certain pressure difference inside and outside inner tube, sealing shroud downlink
It together with turnover panel anchoring device interlocking, is needed ground when draining to rotate tubing string, inner tube rotation first makes turnover panel by opening lock ring
Anchoring device be anchored on it is motionless on casing, then under the external screw thread and the internal screw thread effect, turnover panel anchoring device
Band movable sealing sleeve downlink exposes oil leak hole and realizes draining.The pressure for cutting inside and outside inner tube shear pin when the utility model is gone into the well
Difference can be matched with Y221 packer, overcome problem of the existing technology, and reliable operation can guarantee that oil well is normally given birth to
It produces.
Detailed description of the invention
Fig. 1 is the installation diagram of the utility model embodiment.
Specific embodiment
The embodiments of the present invention are illustrated with reference to the accompanying drawing.
As seen from the figure, the embodiments of the present invention include top connection 1, anti-rotation pin 3, upper seal 4, lower seal 6,
Sealing shroud 7, opening lock ring 8, shear pin 9, turnover panel anchoring device 10, inner tube 11, oil pipe internal screw thread, inner tube are arranged at the top of top connection 1
Oil tube external thread is arranged at 11 lower part, there is oil leak hole 5 under the top screw thread of inner tube 11, and the lower part of top connection 1 is upper with inner tube 11
Portion's connection, the lower outer diameter of top connection 1 are greater than the top outer diameter of inner tube 11, and sealing shroud 7 is sleeved on lower part and the inner tube of top connection 1
11 top simultaneously cooperates with it, and sealing shroud 7 covers the oil leak hole 5, has between the lower part and sealing shroud 7 of top connection 1 upper close
Seal 4, upper seal 4 are on the oil leak hole 5, have lower seal 6 between the top and sealing shroud 7 of inner tube 11, under
Sealing ring 6 is under the oil leak hole 5, suit opening lock ring 8, sealing shroud in the upper, annular slot of turnover panel anchoring device 10
Have in 7 lower part can with opening lock ring 8 cooperate locked groove 7-1, the top of turnover panel anchoring device 10 have in the top of top connection 1
Thread rotary orientation opposite internal screw thread 10-1 has the external screw thread 11-1 oppositely oriented with the upper internal threaded of top connection 1 in inner tube 11,
The external screw thread 11-1 is screwed with the internal screw thread 10-1, and spline arranged at the top of turnover panel anchoring device 10, under sealing shroud 7
There is spline in portion, and the spline on the top of turnover panel anchoring device 10 and the spline of the lower part of sealing shroud 7 are plugged in together, make to seal
It can only be moved to axial between set 7 and turnover panel anchoring device 10, be unable to relative rotation, the lower part of sealing shroud 7 and turnover panel are anchored
Linked together between the top of device 10 by shear pin 9, the locked groove 7-1 be in opening lock ring 8 on, sealing shroud 7 it is upper
Portion is provided with anti-rotation groove 7-2, and anti-rotation pin 3 is inserted into top connection 1 through the anti-rotation groove 7-2, makes sealing shroud 7 relative to top connection
1 moves ability relative rotation after abjection anti-rotation pin 3 axially downwards.Supporting positive cover 2 is installed in top connection 1, can protect sealing
Set 7.Collide it not when removing in pit shaft.
In the spline work that turnover panel anchoring device 10 is in anti-rotation pin 3, the spline of sealing shroud 7, turnover panel anchoring device 10
Under, the torque of rotating inner tube can be for delivery on turnover panel anchoring device 10.
Turnover panel anchoring device 10 is the device used on the other tools in oil field, its turnover panel is close to casing, and when rotation is turned over
Plate overturning is anchored on casing to be integrally fixed with casing.
When forming certain pressure difference inside and outside inner tube 11 (5-6MPa), shear pin 9 is cut, 7 downlink of sealing shroud, and be open lock ring 8
By it together with 10 interlocking of turnover panel anchoring device, sealing shroud 7 disengages anti-rotation pin 3.Ground when draining is needed to rotate tubing string, it is interior
Pipe 11 rotates, and is first anchored on turnover panel anchoring device 10 motionless on casing, then the external screw thread 11-1 and it is described in
Under screw thread 10-1 effect, (opening lock ring 8 is by sealing shroud 7 and turnover panel anchoring device with 7 downlink of movable sealing sleeve for turnover panel anchoring device 10
10 link together), expose oil leak hole 5 and realizes draining.Cut inside and outside inner tube shear pin 9 when the utility model is gone into the well
Pressure difference (inner tube inside and outside differential pressure is less than 5-6MPa), can match with Y221 packer, overcome problem of the existing technology,
It can guarantee that oil well normally produces.
Claims (2)
1. a kind of rotary oil drain, including top connection (1), anti-rotation pin (3), upper seal (4), lower seal (6), sealing shroud
(7), be open lock ring (8), shear pin (9), turnover panel anchoring device (10), inner tube (11), and spiral shell in oil pipe is arranged at the top of top connection (1)
Oil tube external thread is arranged at the lower part of line, inner tube (11), it is characterized in that: there is oil leak hole (5) under the top screw thread of inner tube (11), above connects
The lower part of head (1) is connect with the top of inner tube (11), and the lower outer diameter of top connection (1) is greater than the top outer diameter of inner tube (11), close
Big envelope (7) is sleeved on the lower part of top connection (1) and the top of inner tube (11) and cooperates with it, and sealing shroud (7) covering is described to let out
Oilhole (5) has upper seal (4) between the lower part and sealing shroud (7) of top connection (1), and upper seal (4) is in the draining
On hole (5), have lower seal (6) between the top and sealing shroud (7) of inner tube (11), lower seal (6) is in described and lets out
Under oilhole (5), suit is open lock ring (8) in the upper, annular slot of turnover panel anchoring device (10), has in the lower part of sealing shroud (7)
Can have and spiral shell in the top of top connection (1) with the locked groove (7-1) of opening lock ring (8) cooperation, the top of turnover panel anchoring device (10)
The oppositely oriented internal screw thread of line (10-1) has in inner tube (11) and the oppositely oriented external screw thread of the upper internal threaded of top connection (1)
(11-1), the external screw thread (11-1) are screwed with the internal screw thread (10-1), and flower is arranged at the top of turnover panel anchoring device (10)
Spline, the flower of the lower part of the spline and sealing shroud (7) on the top of turnover panel anchoring device (10) are arranged at key, the lower part of sealing shroud (7)
Keyway is plugged in together, and makes to move to axial between sealing shroud (7) and turnover panel anchoring device (10), cannot opposite rotation
Turn, is linked together between the lower part of sealing shroud (7) and the top of turnover panel anchoring device (10) by shear pin (9), the locked groove
(7-1) is on opening lock ring (8), and the top of sealing shroud (7) is provided with anti-rotation groove (7-2), and anti-rotation pin (3) is prevented through described
Turn trough (7-2) insertion top connection (1) is inner, and making sealing shroud (7) relative to top connection (1), anti-rotation pin is deviate from movement axially downwards
It (3) could relative rotation after.
2. a kind of rotary oil drain according to claim 1, it is characterized in that: installing supporting positive cover (2) on top connection (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821916630.3U CN209053587U (en) | 2018-11-21 | 2018-11-21 | A kind of rotary oil drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821916630.3U CN209053587U (en) | 2018-11-21 | 2018-11-21 | A kind of rotary oil drain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209053587U true CN209053587U (en) | 2019-07-02 |
Family
ID=67053831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821916630.3U Active CN209053587U (en) | 2018-11-21 | 2018-11-21 | A kind of rotary oil drain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209053587U (en) |
-
2018
- 2018-11-21 CN CN201821916630.3U patent/CN209053587U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |