CN201747343U - Hollow water distributor - Google Patents
Hollow water distributor Download PDFInfo
- Publication number
- CN201747343U CN201747343U CN2010205071886U CN201020507188U CN201747343U CN 201747343 U CN201747343 U CN 201747343U CN 2010205071886 U CN2010205071886 U CN 2010205071886U CN 201020507188 U CN201020507188 U CN 201020507188U CN 201747343 U CN201747343 U CN 201747343U
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- throttle
- valve ball
- pipe
- screw thread
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- Expired - Fee Related
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Abstract
The utility model relates to a hollow water distributor. A lower screw thread of a watering tube is connected with an upper main screw thread of a main body and a water distributor core installation hole is arranged in the main body, an expansion hole is arranged in the middle of the water distributor core installation hole, a screw thread on a throttle pipe is connected with an auxiliary screw thread besides the upper main screw thread of the main body, a throttle hole is arranged in the throttle pipe, a ball valve cavity is arranged below the auxiliary screw thread on the main body, a channel is arranged below the ball valve cavity, the throttle hole in the throttle pipe is communicated with the ball valve cavity and the ball valve cavity is communicated with the channel, the channel is communicated with the expansion hole, a ball valve is arranged in the ball valve cavity, the axle of the upper main screw thread on the main body is not coaxial with the axle of the main body. The axle of the water distributor core installation hole is not parallel to the axle of the main body. A water diversion cage is mounted on the main body and simultaneously sleeves the watering pipe and the throttle pipe. The throttle pipe is used to throttle and the hollow water distributor is not damaged, so as to keep the accurate layered quantitative watering effect for a long time and achieve the deserved effect of the watering development. In addition to opening and closing the valve ball, no movable part is present. The hollow water distributor has features of simple structure, reliable operation, long service life and obvious economic benefit.
Description
Technical field
The utility model belongs to the instrument that separated-zone water infection oil field is used, and is a kind of hollow distributor.
Background technology
The main effect of hollow distributor is to produce throttling, makes the certain pressure differential of the inside and outside generation of water injection string, allows differential packer in following envelope of this differential pressure action, realizes seperated layer water injection.Another effect of hollow distributor is to prevent that formation water from flowing backwards, and can only make water inject the stratum, and inaccurate formation water is back in the water injection pipe.Present hollow distributor is to produce thrust under the pressure differential effect, makes length of spring compressed, and earial drainage is opened in valve member axial displacement, and the pressure reduction of this structure delivery port is to produce suddenly, and thorn decreases easily, and sealing surface is damaged.After the sealing surface of delivery port damages, also can overcurrent when not having pressure reduction, can not play the effect that prevents that formation water from flowing backwards.As Chinese patent application 02240804.5 " hollow distributor ", just there are the problems referred to above.And for example also there are the problems referred to above in Chinese patent application 03269335.4 " novel hollow injection well downhole flow regulator ", and its sealing shroud 4 will slide and could realize its function in addition, because the water injection well fouling is serious, can not slide sometimes.Therefore, there is the hollow distributor of slip cap to have more shortcomings.Do not have the effect of throttling after injection well downhole flow regulator restriction sealing surface damages, can not make supporting with it pressure reduction packer set, do not reach the purpose of seperated layer water injection, can not prevent that formation water from flowing backwards.
Summary of the invention
The purpose of this utility model is a kind of hollow distributor of design, overcomes the deficiencies in the prior art, makes long-term, the accurately seperated layer water injection of separate water injection well.
The purpose of this utility model has been achieved in that water injection pipe, the water injection pipe lower thread is connected with main body top main thread, the water distributor core installing hole is arranged in the main body, there is reaming at the middle part of water distributor core installing hole, screw thread on the throttle pipe is connected with the deputy thread on the main thread next door, top of main body, there is throttle orifice throttle pipe inside, the valve ball chamber is arranged under the deputy thread on the main body, is passage under the valve ball chamber, and the throttle orifice in the throttle pipe communicates with the valve ball chamber, the valve ball chamber communicates with passage, passage communicates with reaming, places valve ball in the valve ball chamber, and valve ball is located on the valve port of bottom, valve ball chamber, valve ball is spacing by the throttle pipe lower end, makes valve ball can not stop up the throttle orifice of throttle pipe.
Main body top main thread axis and main body axis disalignment.
Water distributor core installing hole axis and main body axis are not parallel.
Main body top is installed and is divided the water cover, divides the water cover to entangle water injection pipe, throttle pipe simultaneously.
The beneficial effects of the utility model are: adopt the throttle pipe throttling, chock pressure difference is exactly the friction loss of the throttle orifice in the throttle pipe, and pressure reduction is not unexpected generation, can not sting damage, can keep accurate layered quantitative water filling for a long time, reaches the due effect of waterflooding extraction.Except that valve ball opens and closes, there is not movable part, simple in structure, reliable operation, long service life has remarkable economic efficiency.
Description of drawings
Accompanying drawing 1 is an assembling drawing of the present utility model.
The specific embodiment
1 couple of embodiment of the present utility model describes below in conjunction with accompanying drawing.
Embodiment of the present utility model as shown in Figure 1, water injection pipe 1 lower thread is connected with main body 5 top main threads, water distributor core installing hole 7 is arranged in the main body 5, there is reaming 9 at the middle part of water distributor core installing hole 7, screw thread on the throttle pipe 3 is connected with the deputy thread on the main thread next door, top of main body 5, there is throttle orifice throttle pipe 3 inside, valve ball chamber 6 is arranged under the deputy thread on the main body 5, it under the valve ball chamber 6 passage 8, throttle orifice in the throttle pipe 3 communicates with valve ball chamber 6, valve ball chamber 6 communicates with passage 8, passage 8 communicates with reaming 9, place valve ball 4 in the valve ball chamber 6, valve ball 4 is located on the 6 bottom valve ports of valve ball chamber, and valve ball 4 is spacing by throttle pipe 3 lower ends, make valve ball 4 can not stop up the throttle orifice of throttle pipe 3, make the liquid stream can be through reaming 9 in the main body 5, passage 8, valve ball chamber 6, throttle pipe 3 flows out, and can not inwardly flow into through throttle pipe 3, plays the effect of flowing backwards of preventing.Main body 5 top main thread axis and main body 5 axis disalignments, purpose is the size that increases passage 8, valve ball chamber 6, throttle pipe 3, this feature is mainly at small casing, because in small casing, the external diameter of main body 5 is limited, need main body 5 top main thread axis and main body 5 axis disalignments just can better realize the utility model purpose, main body 5 external diameters can increase in big sleeve pipe, main body 5 top main thread axis can be coaxial with main body 5 axis, increases cost of production but main body 5 external diameters increase meeting.Water distributor core installing hole 7 axis and main body 5 axis are not parallel, because the lower thread axis of main body 5 need with main body 5 axis coaxles, otherwise its radius of gyration is big, therefore, water distributor core installing hole 7 axis need to tilt, could guarantee that the next stage water distributing core is by to the next stage main body, if in big sleeve pipe, use, after main body 5 external diameters increase, when main body 5 top main thread axis and main body 5 axis coaxles, just not needing needs to tilt at water distributor core installing hole 7 axis, increases cost of production but main body 5 external diameters increase meeting.Main body 5 tops are installed and are divided water cover 2, can change the flow direction of water outlet, avoid dashing sleeve pipe and the instrument of decreasing, can wash away the down-hole foreign material, divide water cover 2 to entangle water injection pipe 1, throttle pipe 3 simultaneously, can make branch water cover 2 location, it can not rotated, its monnolithic case is not increased, adapt to the requirement of sleeve pipe.
Claims (4)
1. hollow distributor, water injection pipe (1) is arranged, it is characterized in that: water injection pipe (1) lower thread is connected with main body (5) top main thread, water distributor core installing hole (7) is arranged in the main body (5), there is reaming (9) at the middle part of water distributor core installing hole (7), screw thread on the throttle pipe (3) is connected with the deputy thread on the main thread next door, top of main body (5), there is throttle orifice throttle pipe (3) inside, valve ball chamber (6) is arranged under the deputy thread on the main body (5), under the valve ball chamber (6) passage (8), throttle orifice in the throttle pipe (3) communicates with valve ball chamber (6), valve ball chamber (6) communicates with passage (8), passage (8) communicates with reaming (9), place valve ball (4) in the valve ball chamber (6), valve ball (4) is located on the valve port of bottom, valve ball chamber (6), and valve ball (4) is spacing by throttle pipe (3) lower end, makes valve ball (4) can not stop up the throttle orifice of throttle pipe (3).
2. hollow distributor according to claim 1 is characterized in that: main body (5) top main thread axis and main body (5) axis disalignment.
3. hollow distributor according to claim 1 is characterized in that: water distributor core installing hole (7) axis and main body (5) axis are not parallel.
4. hollow distributor according to claim 1 is characterized in that: main body (5) top is installed and is divided water cover (2), divides water cover (2) to entangle water injection pipe (1), throttle pipe (3) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205071886U CN201747343U (en) | 2010-08-18 | 2010-08-18 | Hollow water distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205071886U CN201747343U (en) | 2010-08-18 | 2010-08-18 | Hollow water distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747343U true CN201747343U (en) | 2011-02-16 |
Family
ID=43582026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205071886U Expired - Fee Related CN201747343U (en) | 2010-08-18 | 2010-08-18 | Hollow water distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747343U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942985A (en) * | 2010-08-18 | 2011-01-12 | 陈飞 | Hollow water distributor |
| CN102926722A (en) * | 2012-10-29 | 2013-02-13 | 中国石油化工股份有限公司 | Layering oil production system |
-
2010
- 2010-08-18 CN CN2010205071886U patent/CN201747343U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942985A (en) * | 2010-08-18 | 2011-01-12 | 陈飞 | Hollow water distributor |
| CN102926722A (en) * | 2012-10-29 | 2013-02-13 | 中国石油化工股份有限公司 | Layering oil production system |
| CN102926722B (en) * | 2012-10-29 | 2015-06-17 | 中国石油化工股份有限公司 | Layering oil production system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20110818 |