CN209040805U - Presetting system ceramic throttling device - Google Patents
Presetting system ceramic throttling device Download PDFInfo
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- CN209040805U CN209040805U CN201821939891.7U CN201821939891U CN209040805U CN 209040805 U CN209040805 U CN 209040805U CN 201821939891 U CN201821939891 U CN 201821939891U CN 209040805 U CN209040805 U CN 209040805U
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- tubing string
- inner tube
- seal receptacle
- protective case
- core bar
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Abstract
The utility model discloses presetting system ceramic throttling device, mainly solves the problems, such as that ball-and-seat existing in the prior art can only mutually collide in low pressure well using, steel ball and contact metal and deform and lose unidirectional cutoff effect.Device includes top connection and lower contact, and the core bar being mounted in top connection and lower contact；The top connection includes first tubing string; connector in first tubing string is set; the protective case being connect with connector; the anti-collision sheath being mounted in protective case, the seal receptacle being connect with protective case bottom, the ceramics seat being embedded in seal receptacle; ceramics seat guard ring between ceramics seat and seal receptacle is set; the first installation inner tube that one end is connect with ceramics seat inner ring, the Ceramic Balls support being mounted in anti-collision sheath, and be mounted in anti-collision sheath and act on the Ceramic Balls in Ceramic Balls support.Through the above scheme, the utility model has achieved the purpose that unidirectional cutoff, has very high practical value and promotional value.
Description
Technical field
The utility model belongs to field of petroleum exploitation, in particular, being to be related to presetting system ceramic throttling device.
Background technique
In oil extraction process, after constantly producing with crude oil, formation pressure is reduced, and fuel-displaced pressure difference reduces, will be direct
Influence crude output.Therefore, it is necessary to which high pressure water is injected oil reservoir by special water injection well, increases formation pressure, be allowed to oil reservoir
There is stronger driving force, to improve the exploitation rate and recovery ratio of oil reservoir.
In water injection work, need using to ball-and-seat.The structure of existing ball-and-seat include: threaded connection top connection and
Lower contact is provided with upper channel in the top connection, is provided with lower channel in the lower contact；In top connection and lower contact
Between be provided with installation cavity, be provided with sealed steel ball and baffle in the installation cavity between the top connection and lower contact；Institute
It states lower channel to be interconnected by installation cavity and upper channel, the cooperation point between sealed steel ball and lower channel under the action of well liquid
From making to be connected between lower channel and upper channel, tool remains that oil pipe is inside and outside and flattens weighing apparatus during going into the well.
Above-mentioned ball-and-seat is mounted on oil pipe in use, can only use in low pressure well, only the pressure of well liquid compared with
Low, ball-and-seat can just remain that pressure is lower than well liquid pressure at oil pipe well head during going into the well, if pressure at oil pipe well head
Lower than well liquid pressure, well liquid will just occur and rise counter spit.Above-mentioned ball-and-seat, steel ball is mutually collided with contact metal and well liquid is to steel
The corrosion of ball will all allow steel ball to deform, and make to generate micro gap at steel ball and lower contact cooperation, lose unidirectional cutoff work
With.
Utility model content
The purpose of this utility model is to provide presetting system ceramic throttling devices, mainly solve list existing in the prior art
Stream valve can only mutually collide in low pressure well using, steel ball and contact metal deform, corrosion generation of the well liquid to steel ball
Deformation, and lose the problem of unidirectional cutoff acts on.
To achieve the goals above, the technical solution adopted in the utility model is as follows:
Presetting system ceramic throttling device, including top connection interconnected and lower contact and installation by adhering connect upper
Core bar in head and lower contact；The top connection includes first tubing string, is mounted in first tubing string and for external pipe and one
Body formed connector, the protective case connecting with connector, the anti-collision sheath being mounted in protective case are connect with protective case bottom
Seal receptacle, the ceramics seat being embedded in seal receptacle is arranged in the ceramics seat guard ring between ceramics seat and seal receptacle, one end and pottery
First installation inner tube of porcelain seat inner ring connection, the Ceramic Balls support for being mounted in anti-collision sheath and being contacted with the first installation inner tube, with
And it is mounted in anti-collision sheath and acts on the Ceramic Balls in Ceramic Balls support, wherein core bar passes through the 4th sealing ring and the first peace
Dress inner tube is contacted and is mounted in protective case, and Ceramic Balls support is mounted on the top of core pipe.
Further, the lower contact includes second tubing string, is built in second tubing string and matches with the first installation inner tube
Second installation inner tube of connection, the first mounting hole being provided in second tubing string, the core bar are installed through the second installation inner tube,
The core bar, which is located at the first mounting hole, offers the second matching mounting hole, wherein core bar passes through first by shear pin
Mounting hole and the second mounting hole are fixedly connected with second tubing string, wherein second tubing string is located at the second installation inner tube and first
Inner wall between mounting hole is equipped with the first sealing ring.
Further, the first tubing string is in concave, is managed in second tubing string one end insertion first tubing string and with first
Male screw connection, the second tubing string other end external pipe, wherein second tubing string outer wall port and with first tubing string inner wall end
Mouth contact position is equipped with the second sealing ring.
Further, the protective case is threadedly coupled with seal receptacle, and the junction of the seal receptacle and first tubing string
Equipped with third sealing ring.
Specifically, several holes for being used for water are offered on the anti-collision sheath.
Compared with prior art, the utility model has the following beneficial effects:
(1) the anti-collision sheath installed in the utility model presetting system ceramics ball-and-seat can to avoid Ceramic Balls extruding mistake
Collide damage in journey, at the same be arranged Ceramic Balls can to avoid with well liquid occur corrosion-deformation, thus lose unidirectionally by
Effect, and can be used for a long time.Meanwhile the utility model is squeezed downwards Ceramic Balls by the hydraulic pressure in first tubing string
Pressure cuts shear pin, slides core bar downwards, the liquid in pipeline then connecting with second tubing string so that core bar is pressed down against
Body sprays upwards under the effect of the pressure, and passes through from Ceramic Balls support, and flows out from the hole of anti-collision sheath, and from upper entrance
Liquid plays the role of blocking so that Ceramic Balls support is extruded into and contacts with seal receptacle to one downward pressure of Ceramic Balls, from
And realize the effect of one-way conduction.
(2) core bar of the utility model is contacted with by the 4th sealing ring with the first installation inner tube, in Ceramic Balls support and pottery
Porcelain ball realizes second of sealing function while realizing one-way conduction effect, to well carry out the liquid in first tubing string
It blocks.
Detailed description of the invention
Fig. 1 is the system structure diagram of the utility model.
Fig. 2 is the partial schematic diagram of the utility model.
In above-mentioned attached drawing, the corresponding component names of appended drawing reference are as follows:
1- top connection, 2- lower contact, 3- core bar, 4- first tubing string, 5- connector, 6- protective case, 7- anti-collision sheath, 8- are close
Seal seat, 9- ceramics seat, 10- ceramics seat guard ring, the installation inner tube of 11- first, 12- Ceramic Balls support, 13- Ceramic Balls, the pipe of 14- second
Column, 15- second install inner tube, the first mounting hole of 16-, the second mounting hole of 17-, 18- shear pin, the first sealing ring of 19-, 20- second
Sealing ring, 21- third sealing ring, 22- hole.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, and the embodiments of the present invention includes
But it is not limited to the following example.
Embodiment
As shown in Figures 1 and 2, presetting system ceramic throttling device, including top connection interconnected 1 and lower contact 2, and
Core bar 3 of the installation by adhering in top connection 1 and lower contact 2；The top connection 1 includes first tubing string 4, is mounted on first tubing string
In 4 and it is used for external pipe and integrally formed connector 5, the protective case 6 connecting with connector 5 to be mounted in protective case 6
Anti-collision sheath 7, the seal receptacle 8 connecting with 6 bottom of protective case, the ceramics seat 9 being embedded in seal receptacle 8 are arranged in 9 He of ceramics seat
Ceramics seat guard ring 10 between seal receptacle 8, the first installation inner tube 11 that one end is connect with 9 inner ring of ceramics seat, is mounted on anti-collision shield
The Ceramic Balls support 12 contacted in set 7 and with the first installation inner tube 11, and be mounted in anti-collision sheath 7 and act on Ceramic Balls support
Ceramic Balls 13 on 12, wherein core bar 3 is contacted with the first installation inner tube 11 by the 4th sealing ring and is mounted in protective case 6,
And Ceramic Balls support 12 is mounted on the top of core pipe 3；And the lower contact 2 includes second tubing string 14, is built in second tubing string
The second installation inner tube 15 of connection, the first mounting hole being provided in second tubing string 14 are matched in 14 and with the first installation inner tube 11
16, the core bar 3 through second installation inner tube 15 install, the core bar 3 be located at the first mounting hole 16 offer it is matching
The second mounting hole 17, wherein core bar 3 passes through the first mounting hole 16 and the second mounting hole 17 and second tubing string 14 by shear pin 18
It is fixedly connected, wherein the inner wall that second tubing string 14 is located between the second installation inner tube 15 and the first mounting hole 16 is equipped with
First sealing ring 19.
First tubing string 4 is threadedly coupled with second tubing string 14 first, while both ends external pipe, during going into the well, by
In core bar 3 by the carrier frequency channel break of top connection 1 and lower contact 2, the band well killing fluid in well cannot be returned by tubing string to be spat to ground, will
After ball-and-seat decentralization in place, into first tubing string 4 plus water is suppressed, and 3 stress of core bar is subjected to displacement, and cuts or lay down shear pin 18,
So that core bar 18 slides to duct bottom, while Ceramic Balls support 12 loses the support of core bar 3, while the water in first tubing string 4
It is squeezed under pressure effect to 8 end of seal receptacle, while Ceramic Balls 13 squeeze to form list together with Ceramic Balls support 12 to 8 end of seal receptacle
Flow valve.
The pipeline connecting with 2 second tubing string 14 of lower contact, liquid is pumped out upwards, and Ceramic Balls support 12 is given one upwards
Power, to separate with seal receptacle 8, the liquid in second tubing string 14 passes through Ceramic Balls support 12 and seal receptacle 8 under the action of pump
Between gap from the hole 22 of anti-collision sheath 7 outflow after will return ground from well head be discharged, when what is connect with second tubing string 14
When no liquid is upward in pipeline, Ceramic Balls support 12 is fallen by the gravity of liquid in first tubing string 4 to 8 one end of seal receptacle, thus
Seal receptacle 8 is blocked, realizes the blocking of top connection 1 and lower contact 2, and using ceramics seat 9, Ceramic Balls support 12 and Ceramic Balls 13
Equal ceramic materials, are not easy to be corroded by well liquid, so as to be used for a long time in underground.
Above-described embodiment is only the preferred embodiment of the utility model, is not intended to limit the scope of the present invention,
In every case the design principle of the utility model is used, and carries out the non-creative variation worked and made on this basis, it should all
Belong within the protection scope of the utility model.
Claims (5)
1. presetting system ceramic throttling device, which is characterized in that including top connection interconnected (1) and lower contact (2), Yi Jiqian
Enter the core bar (3) that formula is mounted in top connection (1) and lower contact (2)；The top connection (1) includes first tubing string (4), is mounted on
In first tubing string (4) and for external pipe and integrally formed connector (5), the protective case (6) being connect with connector (5),
The anti-collision sheath (7) being mounted in protective case (6), the seal receptacle (8) connecting with protective case (6) bottom, is embedded in seal receptacle (8)
Interior ceramics seat (9), is arranged ceramics seat guard ring (10) between ceramics seat (9) and seal receptacle (8), one end and ceramics seat (9)
First installation inner tube (11) of inner ring connection, the ceramics for being mounted in anti-collision sheath (7) and being contacted with the first installation inner tube (11)
Ball support (12), and be mounted in anti-collision sheath (7) and act on the Ceramic Balls (13) on Ceramic Balls support (12), wherein core bar
(3) it is contacted and is mounted in protective case (6) with the first installation inner tube (11) by the 4th sealing ring, and Ceramic Balls support (12) is pacified
Mounted in the top of core bar (3).
2. presetting system ceramic throttling device according to claim 1, which is characterized in that the lower contact (2) includes second
Tubing string (14) is built in second tubing string (14) and matches with the first installation inner tube (11) the second installation inner tube (15) of connection,
The first mounting hole (16) being provided on second tubing string (14), the core bar (3) are described through the second installation inner tube (15) installation
Core bar (3), which is located at the first mounting hole (16), offers matching the second mounting hole (17), wherein core bar (3) is by cutting
Nail (18) passes through the first mounting hole (16) and the second mounting hole (17) is fixedly connected with second tubing string (14), wherein second
The inner wall that tubing string (14) is located between the second installation inner tube (15) and the first mounting hole (16) is equipped with the first sealing ring (19).
3. presetting system ceramic throttling device according to claim 2, which is characterized in that the first tubing string (4) is in concave,
It is threadedly coupled in second tubing string (14) one end insertion first tubing string (4) and with first tubing string (4), the second tubing string (14)
Other end external pipe, wherein second tubing string (14) outer wall port and be equipped with first tubing string (4) inner wall port contact position
Two sealing rings (20).
4. presetting system ceramic throttling device according to claim 3, which is characterized in that the protective case (6) and seal receptacle
(8) it is threadedly coupled, and the junction of the seal receptacle (8) and first tubing string (4) is equipped with third sealing ring (21).
5. presetting system ceramic throttling device according to claim 4, which is characterized in that opened up on the anti-collision sheath (7)
There are several holes (22) for being used for water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821939891.7U CN209040805U (en) | 2018-11-21 | 2018-11-21 | Presetting system ceramic throttling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821939891.7U CN209040805U (en) | 2018-11-21 | 2018-11-21 | Presetting system ceramic throttling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209040805U true CN209040805U (en) | 2019-06-28 |
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ID=67043178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821939891.7U Active CN209040805U (en) | 2018-11-21 | 2018-11-21 | Presetting system ceramic throttling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209040805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252830A (en) * | 2018-11-21 | 2019-01-22 | 四川鹏成石油技术开发有限公司 | Presetting system ceramic throttling device and its implementation |
-
2018
- 2018-11-21 CN CN201821939891.7U patent/CN209040805U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252830A (en) * | 2018-11-21 | 2019-01-22 | 四川鹏成石油技术开发有限公司 | Presetting system ceramic throttling device and its implementation |
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