CN209687466U - A kind of bleeder - Google Patents
A kind of bleeder Download PDFInfo
- Publication number
- CN209687466U CN209687466U CN201822043574.3U CN201822043574U CN209687466U CN 209687466 U CN209687466 U CN 209687466U CN 201822043574 U CN201822043574 U CN 201822043574U CN 209687466 U CN209687466 U CN 209687466U
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- cone
- inner tube
- sliding sleeve
- sleeve
- slips
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Abstract
A kind of bleeder, outer lug boss is arranged at the top of inner tube, installation is every pressure upper seal in outer lug boss, pressure transmission hole is set under outer lug boss, the inside of cone forms pressure-bearing surface, the upper internal setting inner convex platform of cone, installation is every pressure sealing ring in the lower part of cone, cone is set on inner pipe, the top of cone is installed by interstage sleeve, oil leak hole is arranged at the top of inner tube, sliding sleeve is sleeved on the draining hole section of inner tube, there is sliding sleeve upper seal between sliding sleeve and inner tube, sliding sleeve lower seal, the upper suspension of slip sleeve is in the lower part of sliding sleeve, slip sleeve is in outside cone, slips is installed in the window of slip sleeve lower part, the inner conical surface of slips and the male cone (strobilus masculinus) of cone cooperate, gear connector is connected to the lower part of slip sleeve, hold slips in the upper surface of gear connector, the lower screw thread of top connection and the top of inner tube connect, the lower part of top connection is sleeved on outside sliding sleeve, top connection with Sliding sleeve is linked together by shear pin, and the waxy substance being cast into through pressure transmission hole is full of in the toroidal cavity between the pressure transmission hole and inner tube and cone.
Description
Technical field
The utility model is a kind of oilfield downhole hardware, is the tool of connection pumping pipe string and casing, specifically one
Kind bleeder.
Background technique
There are many existing bleeder type, and most of is to borrow sucker rod in well to open draining or ground drop-in tool opening
Draining.If sucker rod does not mention not come out, and cannot achieve draining after the bleeder rod parting of these types.Such as Patent No.
A kind of 556238554.55 split type oil riser bleeders, its brace type solution lock assembly it is upper mention oil pipe when will be total with draining
The draining at contact is encountered to will result in when new situation needs above to mention oil pipe and be let out during operation worker operation is made mistakes or is gone into the well
Oily device opens draining, keeps operation unsuccessful.For another example 00247456.5 oil riser bleeder of the patent No., there is also above-mentioned patents
The problem of (a kind of 556238554.55 split type oil riser bleeder).Operating worker operation error is because in lower Tubing During Running
The habit for being difficult to change for itself needing the operation for mentioning oil pipe and forming for many years, is likely to cause such bleeder
Open draining.Chinese patent 200419395501.5 " tubing anchor ", can be anchored pumping pipe string, can also be that one kind is let out with draining
Oily device, but it makes in draining by rotation tubing string, screws the generation of the lifting screw thread of inner tube and cone, cone is on sealing drum
Row, it is internal under sealing drum to leave lower contact after sealing drum uplink certain altitude, make inner tube and casing connection, is let out to realize
Oil, since it is in well liquid, the salinity of well liquid is higher, and the lifting screw thread of inner tube and cone easily corrodes and fouling, causes
Cone is stuck, and relative rotation is unable between inner tube and cone, and the purpose of design that drain mast is disanchored is not achieved, there is many wells at the scene
There is the problem of card tubing string, engineering accident has occurred, generates heavy economic losses.
Midway is not generated when going into the well in order to prevent there are also a kind of bleeder to act, starter is lockked with pin, is gone into the well
After need to suppress into oil pipe and cut pin, its actuating mechanism could be started, this bleeder needs to suppress equipment, to increase
Add operating expenses and construction time, increases operational procedure.
Summary of the invention
The purpose of this utility model is to design a kind of bleeder, overcomes the problems, such as that above-mentioned technology exists, is not required to its draining
It suppresses equipment to boost into tubing string, subtracts operating expenses and construction time.
Purpose of the utility model is realized as follows: including under top connection, sliding sleeve upper seal, shear pin, sliding sleeve, sliding sleeve
Sealing ring, slip sleeve, interstage sleeve, every pressure upper seal, every pressure sealing ring, cone, slips, gear connector, inner tube, top connection it is upper
There is oil pipe internal screw thread in portion, and oil tube external thread is arranged at the lower part of inner tube, and outer lug boss is arranged at the top of inner tube, installs in the outer lug boss
Pressure transmission hole is set under pressure upper seal, the outer lug boss of inner tube, and the upper inner diameter of cone is equal to the outer of the top of inner tube
The outer diameter of boss, the lower inner diameter of cone are equal to the lower outer diameter of inner tube, and the inside of cone forms pressure-bearing surface, the upper inside of cone
Inner convex platform is set, and the inner convex platform is on the pressure-bearing surface, and installation is every pressure sealing ring, cone in the lower part of cone
Suit on inner pipe, every pressure sealing ring be under the pressure transmission hole, the inner convex platform be in the outer lug boss it
Under, interstage sleeve is installed on the top of cone, and the internal diameter of interstage sleeve is less than the outer diameter of the outer lug boss, makes energy after the certain stroke of cone downlink
It is suspended on the upper surface of the outer lug boss on the top of inner tube, oil leak hole is arranged at the top of inner tube, and sliding sleeve is sleeved on the described of inner tube
Draining hole section, there is sliding sleeve upper seal, sliding sleeve lower seal between sliding sleeve and inner tube, sliding sleeve upper seal is in the draining
On hole, sliding sleeve lower seal is under the oil leak hole, and the upper suspension of slip sleeve is at the lower part of sliding sleeve, slip sleeve
In outside cone, installing slips in the window of slip sleeve lower part, the inner conical surface of slips and the male cone (strobilus masculinus) of cone cooperate, the swallow of slips
Tail tooth is inserted into the dovetail groove of cone, and when cone downlink can be such that slips moves radially, and gear connector is connected to the lower part of slip sleeve, gear
Slips is held in the upper surface of connector, connects slips from being detached from cone, the lower screw thread of top connection and the top of inner tube, junction
Sealing is kept, the lower part of top connection is sleeved on outside sliding sleeve, and top connection and sliding sleeve are linked together by shear pin, and the lower end surface of interstage sleeve is arrived
The distance between upper surface of top outer lug boss of inner tube is greater than down stroke distance when cone process, casts through the pressure transmission hole
Enter waxy substance, the waxy substance being cast into is full of in the toroidal cavity between the pressure transmission hole and inner tube and cone.
The beneficial effects of the utility model are: the waxy substance being cast into is full of the ring between the pressure transmission hole and inner tube and cone
In shape cavity, prevent the pressure of inner tube from being passed in cone, cone will not act when going into the well, and will not be anchored halfway, connect after going into the well
When connecing the oil pumping pump work under the utility model, well temperature is higher than the temperature of waxy substance, and waxy substance melts, inner tube pressure when oil pumping
Power is higher than cone external pressure, and for differential pressure action on the inner convex platform of cone, cone downlink struts slips anchoring on casing.Therefore,
The utility model does not need to suppress equipment when starting its actuating mechanism, can be reduced operating expenses and construction time.
Detailed description of the invention
Fig. 1 is the assembly semi-cutaway of the utility model embodiment.
Specific embodiment
The embodiments of the present invention are described in detail below with reference to Fig. 1.
As seen from the figure, the embodiments of the present invention include top connection 1, sliding sleeve upper seal 2, shear pin 3, sliding sleeve 4, sliding sleeve
Lower seal 5, slip sleeve 6, interstage sleeve 7, every pressure upper seal 8, every pressure sealing ring 9, cone 10, slips 11, gear connector 12, interior
Oil pipe internal screw thread is arranged at pipe 13, the top of top connection 1, and oil tube external thread, the oil pipe internal screw thread and institute are arranged at the lower part of inner tube 13
The oil tube external thread stated matches, and outer lug boss 13-2 is arranged at the top of inner tube 13, and installation is upper close every pressure on the outer lug boss 13-2
Seal 8, pressure transmission hole 13-3 is arranged under the outer lug boss 13-2 of inner tube 13, and the upper inner diameter of cone 10 is equal to the upper of inner tube 13
The outer diameter of the outer lug boss 13-2 in portion, the lower inner diameter of cone 10 are equal to the lower outer diameter of inner tube 13, and the inside of cone 10, which is formed, holds
Pressure surface 10-2, cone 10 it is upper it is internal inner convex platform 10-1 is set, the inner convex platform 10-1 be in the pressure-bearing surface 10-2 it
On, installation is sleeved in inner tube 13 every pressure sealing ring 9, cone 10 in the lower part of cone 10, is in described every pressure sealing ring 9
Pressure transmission hole 13-3 under, the inner convex platform 10-1 is under the outer lug boss 13-2, and gear is installed on the top of cone 10
Set 7, the internal diameter of interstage sleeve 7 are less than the outer diameter of the outer lug boss 13-2, can be suspended on inner tube after making the certain stroke of 10 downlink of cone
On the upper surface of the outer lug boss 13-2 on 13 top, oil leak hole 13-1 is arranged at the top of inner tube 13, and sliding sleeve 4 is sleeved on the institute of inner tube 13
13-1 sections of the oil leak hole stated has sliding sleeve upper seal 2, sliding sleeve lower seal 5, sliding sleeve upper seal 2 between sliding sleeve 4 and inner tube 13
On the oil leak hole 13-1, sliding sleeve lower seal 5 is under the oil leak hole 13-1, the top of slip sleeve 6
It is suspended on the lower part of sliding sleeve 4, slip sleeve 6 is in outside cone 10, and slips 11, slips 11 are installed in the window of 6 lower part of slip sleeve
Inner conical surface and the male cone (strobilus masculinus) of cone 10 cooperate, in the dovetail groove of the dovetail tooth of slips 11 insertion cone 10 (in oil well
Slips, cone structure on Y221 packer is identical, and those skilled in the art both knows about), when 10 downlink of cone, can make slips
11 move radially, and gear connector 12 is connected to the lower part of slip sleeve 6, and slips 11 is held in the upper surface of gear connector 12, in slips 11
Under the action of dovetail tooth, the dovetail groove of cone 10 and gear connector 12, slips 11 cannot be detached from cone 10(and Y221 packer phase
Together), the lower screw thread of top connection 1 is connect with the top of inner tube 13, and junction keeps sealing, and the lower part of top connection 1 is sleeved on sliding sleeve 4
Outside, top connection 1 is linked together with sliding sleeve 4 by shear pin 3, and the top outer lug boss 13-2's of the lower end surface of interstage sleeve 7 to inner tube 13 is upper
The distance between end face is greater than down stroke distance when cone 10 works, and guarantees that slips 11 is anchored on casing under rear interstage sleeve 7
End face is less than the upper surface of the boss outer lug boss 13-2, and the radius vector otherwise opened outside slips 11 is not enough anchored on casing
Displacement.It is cast into waxy substance through the pressure transmission hole 13-3, the waxy substance being cast into is full of the pressure transmission hole 13-3 and inner tube 13
In toroidal cavity between cone 10.It is to increase the secured of mounting cone 10 that inner convex platform 10-1 is arranged in cone 10
Property, the cone 10 on the way that prevents from going into the well moves down.
When going into the well, the utility model is mounted on oil well pump, with pumping pipe string G.I.H.When oil pumping pump work, well
Temperature is higher than the temperature of waxy substance, and waxy substance melts, and pressure when oil pumping in inner tube 13 is higher than the pressure outside cone 10, differential pressure action
On the pressure-bearing surface 10-2 of cone 10,10 downlink of cone struts slips 11 and is anchored on casing.When lift pipe string needs draining, ground
Upper lifting pipe post, since sliding sleeve 4 is integral immovable with slips 11, shear pin 3 is broken in top connection 1 when above being mentioned, under sliding sleeve 4
Row exposes oil leak hole 13-1 draining, while slip sleeve 6, gear connector 12 lose the support work to slips 11 with respect to 13 downlink of inner tube
With slips 11 is just recoverable to disanchor, so that it may smoothly propose tubing string.
Cone 10 go downwards to interstage sleeve 7 lower end surface and the outer lug boss 13-2 upper end face contact when until.
The quantity of slips 11 is 3-6 piece, is evenly distributed on slip sleeve 6.
Claims (1)
1. a kind of bleeder, including top connection (1), sliding sleeve upper seal (2), shear pin (3), sliding sleeve (4), sliding sleeve lower seal
(5), slip sleeve (6), interstage sleeve (7), every pressure upper seal (8), every pressure sealing ring (9), cone (10), slips (11), gear connect
Oil pipe internal screw thread is arranged at head (12), inner tube (13), the top of top connection (1), and oil tube external thread, feature are arranged at the lower part of inner tube (13)
Be: outer lug boss (13-2) is arranged at the top of inner tube (13), and installation is interior every pressure upper seal (8) in the outer lug boss (13-2)
It manages and pressure transmission hole (13-3) is set under the outer lug boss (13-2) of (13), the upper inner diameter of cone (10) is equal to inner tube (13)
The outer diameter of the outer lug boss (13-2) on top, the lower inner diameter of cone (10) are equal to the lower outer diameter of inner tube (13), cone (10)
Inside forms pressure-bearing surface (10-2), and upper internal setting inner convex platform (10-1) of cone (10), the inner convex platform (10-1) is in
On the pressure-bearing surface (10-2), installation is sleeved on inner tube every pressure sealing ring (9), cone (10) in the lower part of cone (10)
(13) it on, is under the pressure transmission hole (13-3) every pressure sealing ring (9), the inner convex platform (10-1) is described
Under outer lug boss (13-2), interstage sleeve (7) are installed on the top of cone (10), and the internal diameter of interstage sleeve (7) is less than the outer lug boss (13-
2) outer diameter makes the upper surface that the outer lug boss (13-2) on the top of inner tube (13) can be suspended on after the certain stroke of cone (10) downlink
On, the top of inner tube (13) has oil leak hole (13-1), and sliding sleeve (4) is sleeved on described oil leak hole (13-1) section of inner tube (13),
There are sliding sleeve upper seal (2), sliding sleeve lower seal (5) between sliding sleeve (4) and inner tube (13), sliding sleeve upper seal (2) is in institute
On the oil leak hole (13-1) stated, sliding sleeve lower seal (5) is under the oil leak hole (13-1), slip sleeve (6) it is upper
Portion is suspended on the lower part of sliding sleeve (4), and slip sleeve (6) is in cone (10) outside, installs slips in the window of slip sleeve (6) lower part
(11), the inner conical surface of slips (11) and the male cone (strobilus masculinus) of cone (10) cooperate, the swallow of dovetail tooth insertion cone (10) of slips (11)
In stern notch, when cone (10) downlink, can be such that slips (11) moves radially, and gear connector (12) is connected to the lower part of slip sleeve (6), gear
Slips (11) are held in the upper surface of connector (12), be detached from slips (11) cannot cone (10), the lower screw thread of top connection (1) with it is interior
The top connection of (13) is managed, junction keeps sealing, and the lower part of top connection (1) is sleeved on sliding sleeve (4) outside, top connection (1) and sliding
Set (4) is linked together by shear pin (3), the upper surface of the top outer lug boss (13-2) of the lower end surface of interstage sleeve (7) to inner tube (13)
The distance between be greater than cone (10) work when down stroke distance, be cast into waxy substance through the pressure transmission hole (13-3), be cast into
Waxy substance full of in toroidal cavity between the pressure transmission hole (13-3) and inner tube (13) and cone (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822043574.3U CN209687466U (en) | 2018-12-06 | 2018-12-06 | A kind of bleeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822043574.3U CN209687466U (en) | 2018-12-06 | 2018-12-06 | A kind of bleeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209687466U true CN209687466U (en) | 2019-11-26 |
Family
ID=68595706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822043574.3U Active CN209687466U (en) | 2018-12-06 | 2018-12-06 | A kind of bleeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209687466U (en) |
-
2018
- 2018-12-06 CN CN201822043574.3U patent/CN209687466U/en active Active
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