CN208900039U - Tubing nipple with filtering function - Google Patents
Tubing nipple with filtering function Download PDFInfo
- Publication number
- CN208900039U CN208900039U CN201821664098.0U CN201821664098U CN208900039U CN 208900039 U CN208900039 U CN 208900039U CN 201821664098 U CN201821664098 U CN 201821664098U CN 208900039 U CN208900039 U CN 208900039U
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- China
- Prior art keywords
- sand
- out pipe
- clean out
- screen casing
- valve seat
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Abstract
A kind of tubing nipple with filtering function, it is related to oil production equipment field, including box cupling, screen casing and sand clean out pipe, box cupling is threadedly attached in the upper end of screen casing, the lower end of screen casing is inserted into sand clean out pipe, the upper end of sand clean out pipe is provided with lock claw, card slot is correspondingly arranged on the lock claw on the box cupling, the lower end of sand clean out pipe is provided with rramming sawtooth, the upper end of the sand clean out pipe is connect by pin with screen casing, the lower end of screen casing has been connected through a screw thread valve seat, and being hinged on valve seat can be by the valve plate of the passage plugging in valve seat center.The hinged place of the valve plate and valve seat is provided with torsionspring, and valve plate keeps the movement tendency close to valve seat under the action of torsionspring.The prior art is optimized in the utility model, and lateral sand washing is changed to axial sand washing, and compared with prior art, sand washing effect is more preferable.
Description
Technical field
The utility model belongs to oil production equipment field more particularly to a kind of tubing nipple with filtering function.
Background technique
Common a kind of down hole filter system when screen casing is pumping production, in the prior art, screen casing only have filtering this
A kind of function when sand washing, needs first to rise by flow string, then tripping in sand-flushing pipe column, after sand washing, it is also necessary to by sand clean out pipe
Column rises, then tripping in flow string.When using above-mentioned operation mode, when sand washing need it is a lot of under tubing string twice, construction cost
Higher, the construction time is longer.To solve the above-mentioned problems, application No. is the utility model patents of CN201721129151.2 to disclose
A kind of anti-blocking screen casing tubing string integrating oil recovery and sand washing, the device have the function of filtering and two kinds of sand washing, and can be not
The switching of two kinds of functions is realized in the case where lift pipe string.However sand washing water is flowed out from side when this device sand washing, it cannot
Direct impact is generated to sand face, influences sand washing effect.Meanwhile the setting of outer tube blind plate can enter the process of layer of sand to outer tube and make
At obstruction, to influence rramming effect.
Utility model content
The utility model provides a kind of tubing nipple with filtering function, to solve mentioned above in the background art ask
Topic.
The technical problem solved by the utility model is implemented by the following technical solutions: the utility model provides one kind
Tubing nipple with filtering function, including box cupling, screen casing and sand clean out pipe, box cupling are threadedly attached in the upper end of screen casing, sieve
The lower end of pipe is inserted into sand clean out pipe, and the upper end of sand clean out pipe is provided with lock claw, corresponding with the lock claw on the box cupling to set
It is equipped with card slot, the lower end of sand clean out pipe is provided with rramming sawtooth, and the upper end of the sand clean out pipe is connect by pin with screen casing, screen casing
Lower end be connected through a screw thread valve seat, being hinged on valve seat can be by the valve plate of the passage plugging in valve seat center.
The hinged place of the valve plate and valve seat is provided with torsionspring, and valve plate is kept under the action of torsionspring to valve
Seat against close movement tendency.
The utility model has the following beneficial effects:
1, the prior art is optimized in the utility model, and lateral sand washing is changed to axial sand washing, with prior art phase
Than sand washing effect is more preferable.
2, the utility model eliminates outer tube blind plate in the prior art, and sand clean out pipe is allow more to be inserted into the deeper of layer of sand
Place is conducive to improve sand washing efficiency.
3, in the utility model, the latus rectum in sand washing channel is sufficiently large, it is sufficient to flow needed for guaranteeing sand washing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure, 1- box cupling, 2- card slot, 3- screen casing, 4- lock claw, 5- pin, 6- sand clean out pipe, 7- valve seat, 8- valve plate, 9- rramming
Sawtooth.
Specific embodiment
The utility model is described further below in conjunction with attached drawing:
The present embodiment includes box cupling 1, screen casing 3 and sand clean out pipe 6, and box cupling 1 is threadedly attached in the upper end of screen casing 3, screen casing 3
Lower end be inserted into sand clean out pipe 6, the upper end of sand clean out pipe 6 is provided with lock claw 4, corresponding with the lock claw 4 on the box cupling 1
It is provided with card slot 2, the lower end of sand clean out pipe 6 is provided with rramming sawtooth 9.The above are already existing structures in the prior art, herein
It repeats no more.
The upper end of the sand clean out pipe 6 is connect by pin 5 with screen casing 3, compared with prior art, simplifies 3 He of screen casing
Connection structure between sand clean out pipe 6.
The lower end of screen casing 3 has been connected through a screw thread valve seat 7, and being hinged on valve seat 7 can be by the passage plugging in 7 center of valve seat
Valve plate 8.When sand washing, sand washing water directly passes through from the centre gangway of valve body 7 and is finally sprayed by the axial direction of sand clean out pipe 6.And by side
It is changed to axial sand washing to sand washing, compared with prior art, sand washing effect is more preferable.In addition, the utility model eliminates the prior art
In outer tube blind plate, so that sand clean out pipe 6 is more inserted into the deeper inside of layer of sand, be conducive to improve sand washing efficiency.
The hinged place of the valve plate 8 and valve seat 7 is provided with torsionspring, and valve plate 8 is kept under the action of torsionspring
The movement tendency close to valve seat 7.When sand washing stops, valve plate 8 is automatically closed under the elastic force effect of torsionspring.
In the utility model, the latus rectum in sand washing channel is sufficiently large, it is sufficient to flow needed for guaranteeing sand washing.
Claims (2)
1. a kind of tubing nipple with filtering function, including box cupling (1), screen casing (3) and sand clean out pipe (6), box cupling (1) pass through spiral shell
Line is connected to the upper end of screen casing (3), and the lower end of screen casing (3) is inserted into sand clean out pipe (6), and the upper end of sand clean out pipe (6) is provided with lock
Pawl (4) is correspondingly arranged on card slot (2) on the box cupling (1) with the lock claw (4), and the lower end of sand clean out pipe (6), which is provided with, smashes
Sand sawtooth (9), it is characterised in that: the upper end of the sand clean out pipe (6) is connect by pin (5) with screen casing (3), screen casing (3)
Lower end has been connected through a screw thread valve seat (7), and being hinged on valve seat (7) can be by the valve plate (8) of the passage plugging in valve seat (7) center.
2. a kind of tubing nipple with filtering function according to claim 1, it is characterised in that: the valve plate (8)
The hinged place of valve seat (7) is provided with torsionspring, valve plate (8) keeps close to valve seat (7) under the action of torsionspring
Movement tendency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821664098.0U CN208900039U (en) | 2018-10-12 | 2018-10-12 | Tubing nipple with filtering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821664098.0U CN208900039U (en) | 2018-10-12 | 2018-10-12 | Tubing nipple with filtering function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208900039U true CN208900039U (en) | 2019-05-24 |
Family
ID=66575718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821664098.0U Active CN208900039U (en) | 2018-10-12 | 2018-10-12 | Tubing nipple with filtering function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208900039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725008A (en) * | 2017-09-05 | 2018-02-23 | 中国石化江汉油田分公司江汉采油厂 | It is a kind of to integrate the anti-blocking screen casing tubing string to recover the oil with sand washing |
-
2018
- 2018-10-12 CN CN201821664098.0U patent/CN208900039U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725008A (en) * | 2017-09-05 | 2018-02-23 | 中国石化江汉油田分公司江汉采油厂 | It is a kind of to integrate the anti-blocking screen casing tubing string to recover the oil with sand washing |
| CN107725008B (en) * | 2017-09-05 | 2024-03-08 | 中国石油化工股份有限公司 | Anti-blocking sieve tube column integrating oil extraction and sand washing |
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