CN207177859U - A kind of injection well downhole flow regulator of the two-tube dispensing Operating Pressure of routine - Google Patents
A kind of injection well downhole flow regulator of the two-tube dispensing Operating Pressure of routine Download PDFInfo
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- CN207177859U CN207177859U CN201721098879.3U CN201721098879U CN207177859U CN 207177859 U CN207177859 U CN 207177859U CN 201721098879 U CN201721098879 U CN 201721098879U CN 207177859 U CN207177859 U CN 207177859U
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- piston
- tube
- waterflood path
- flow regulator
- injection well
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Abstract
The utility model provides a kind of injection well downhole flow regulator of the two-tube dispensing Operating Pressure of routine,Including outer tube,Outer tube is built with hollow inner tube,And a circular passage is formed between inner and outer tubes,The tube wall of the outer tube is provided with waterflood path,Spring base is sequentially provided with from top to bottom in the waterflood path,Spring and piston,The piston leaves gap with waterflood path bottom,Piston is fixed by the tube wall of pin and outer tube,Waterflood path is provided with apopore and inlet opening,The apopore is communicated to outside pipe,Apopore is above the gap between piston and waterflood path bottom,The inlet opening connects with circular passage,Inlet opening is located at below piston,The utility model is simple in construction,Operating method is easy,Solve not closing automatically after conventional injection well downhole flow regulator is opened,Completely cut off casing pressure,The problem of conventional two-tube dispensing Operating Pressure can not be realized,It disclosure satisfy that the needs of fine water filling.
Description
Technical field
It the utility model is related to oil extraction in oil field technical field, and in particular to a kind of water distribution of the two-tube dispensing Operating Pressure of routine
Device.
Background technology
With deepening continuously for oil field development, stratum energy all declines quickly and very big difference be present between different oil reservoirs,
Have a strong impact on that oil field continues Efficient Development.It is the effective of raising recovery ratio that different oil reservoirs are carried out with seperated layer water injection supplement stratum energy
Means, existing frequently-used zonal injection technology mainly has the techniques such as water injection through tubing and casing, bridge-type eccentric dispensing, bridge-type concentric separated-injection, with oil
The iterative method of field fine-grained management, the more or less presence survey tune of existing zonal injection technology is hampered, and rate is high, surveys and adjusts cycle length, tune
With the problems such as precision is low, the dispensing qualified phase is short.
It is now anxious in order to solve high angle hole, deep-well, produced-water reinjection well, horizontal well seperated layer water injection and test allotment problem
Need to explore directional well routinely two-tube dispensing Operating Pressure technique, realize that two-tube zonal injection technology not pressure release plays lower tubular column, reduces ground
The purpose of layer energy loss.Temporarily opened in the market without the injection well downhole flow regulator for being adapted to conventional two-tube dispensing Operating Pressure, conventional injection well downhole flow regulator
It can not automatically be closed after opening, completely cut off casing pressure, it is impossible to realized conventional two-tube dispensing Operating Pressure, therefore, be badly in need of such product
Fill a hole in the market, to meet the needs of fine water filling.
Utility model content
The purpose of this utility model is to overcome conventional injection well downhole flow regulator can not automatically be closed after opening, completely cut off casing pressure, it is impossible to
The problem of realizing conventional two-tube dispensing Operating Pressure, there is provided a kind of injection well downhole flow regulator of the two-tube dispensing Operating Pressure of routine, to meet essence
The needs of thin water filling.
The technical solution of the utility model there is provided a kind of injection well downhole flow regulator of the two-tube dispensing Operating Pressure of routine, including outer
Pipe, outer tube form a circular passage built with hollow inner tube between inner and outer tubes, the tube wall of the outer tube is provided with
Waterflood path, spring base, spring and piston, the piston and waterflood path bottom are sequentially provided with the waterflood path from top to bottom
Portion leaves gap, and piston is fixed by the tube wall of pin and outer tube, and waterflood path is provided with apopore and inlet opening, the water outlet
Hole is communicated to outside pipe, and apopore is above the gap between piston and waterflood path bottom, the inlet opening and annular
Passage connects, and inlet opening is located at below piston.
The waterflood path bottom is provided with boss, and the big bottom in top of the piston is small.
After the pin is not cut or stops note, piston is stuck on the boss of waterflood path, and outside and the water filling of piston are led to
Road inwall is affixed.
The spring base, which is connected through a screw thread, to be fixed in waterflood path.
Sealing ring is provided with the outside of the piston lower portion.
A kind of water-filling method of the injection well downhole flow regulator of the two-tube dispensing Operating Pressure of routine, including at least following steps：
Step 1）To the injection well downhole flow regulator water filling, pin is cut under pressure, while piston stroking upward, and spring is compressed,
Water in circular passage enters waterflood path by inlet opening, and is come out from apopore, carries out water filling.
Step 2）After stopping note, injection well downhole flow regulator internal and external pressure balance, collective effect of the piston by spring spring and self gravitation
It is descending, snap on the boss of waterflood path bottom, close waterflood path.
The beneficial effects of the utility model：
The injection well downhole flow regulator of the two-tube dispensing Operating Pressure of this routine of the present utility model, simple in construction, operating method is easy, leads to
Excess pressure promotes piston stroking upward to cut pin, inlet opening is connected with apopore, realizes water-filling function；After note is stopped, interior external pressure
Dynamic balance, descent of piston is promoted under the elastic force of spring and piston self gravitation collective effect, close apopore, realize injection well downhole flow regulator
Inside and outside barrier, solve not closing automatically after conventional injection well downhole flow regulator is opened, completely cut off casing pressure, it is impossible to realize conventional two-tube dispensing
The problem of Operating Pressure, it disclosure satisfy that the needs of fine water filling.The utility model is done below with reference to accompanying drawing further in detail
Explanation.
Brief description of the drawings
Fig. 1 be the utility model routinely it is two-tube dispensing Operating Pressure injection well downhole flow regulator structural representation.
Description of reference numerals：1st, outer tube；2nd, spring base；3rd, spring；4th, piston；5th, pin；6th, apopore；7th, water filling is led to
Road；8th, inlet opening.
Embodiment
Embodiment 1：
In order to overcome conventional injection well downhole flow regulator can not automatically be closed after opening, completely cut off casing pressure, it is impossible to realize routinely two-tube point
The problem of noting Operating Pressure, present embodiments provide a kind of injection well downhole flow regulator of the two-tube dispensing Operating Pressure of routine as shown in Figure 1, bag
Outer tube 1 is included, outer tube 1 forms a circular passage, the pipe of the outer tube 1 built with hollow inner tube between inner and outer tubes 1
Wall is provided with waterflood path 7, and spring base 2, spring 3 and piston 4, the work are sequentially provided with from top to bottom in the waterflood path 7
Plug 4 leaves gap with the bottom of waterflood path 7, and piston 4 is fixed by the tube wall of pin 5 and outer tube 1, and waterflood path 7 is provided with out
Water hole 6 and inlet opening 8, the apopore 6 are communicated to outside outer tube 1, and apopore 6 is located between piston 4 and the bottom of waterflood path 7
Gap above, the inlet opening 8 connects with circular passage, and inlet opening 8 is located at below piston 4.
The water-filling method of the injection well downhole flow regulator of the two-tube dispensing Operating Pressure of this routine of the present utility model, including at least following step
Suddenly：
Step 1 is cut under pressure to the injection well downhole flow regulator water filling, pin 5, while piston 4 is up, and spring 3 is pressed
Contract, the water in circular passage enters waterflood path 7 by inlet opening 8, and is come out from apopore 6, carries out water filling.
After step 2 stops note, injection well downhole flow regulator internal and external pressure balance, collective effect of the piston 4 by the spring of spring 3 and self gravitation
It is descending, snap on the boss of the bottom of waterflood path 7, close waterflood path 7.
The injection well downhole flow regulator of the two-tube dispensing Operating Pressure of this routine of the present utility model, simple in construction, operating method is easy, leads to
Excess pressure promotes piston stroking upward to cut pin, inlet opening is connected with apopore, realizes water-filling function；After note is stopped, interior external pressure
Dynamic balance, descent of piston is promoted under the elastic force of spring and piston self gravitation collective effect, close apopore, realize injection well downhole flow regulator
Inside and outside barrier, solve not closing automatically after conventional injection well downhole flow regulator is opened, completely cut off casing pressure, it is impossible to realize conventional two-tube dispensing
The problem of Operating Pressure, it disclosure satisfy that the needs of fine water filling.
Embodiment 2：
On the basis of embodiment 1, the injection well downhole flow regulator for the two-tube dispensing Operating Pressure of this routine that the present embodiment provides is described
The bottom of waterflood path 7 is provided with boss, and the big bottom in top of the piston 4 is small, and after pin 5 is not cut or stops note, piston 4 is stuck in
On the boss of waterflood path 7, outside and the inwall of waterflood path 7 of piston 4 are affixed.Piston 4 is stuck on boss, below piston 4
Gap is left, avoids stopping rear piston 4 and falls on the bottom of waterflood path 7, water inlet 8 is blocked, influences next water filling.
In order to facilitate dismounting, the spring base 2, which is connected through a screw thread, to be fixed in waterflood path 7.
The lower outside of piston 4 is provided with sealing ring, ensures sealing, during water filling, ensures that enough pressure cuts pin 5, together
When avoid water from entering in the spring 3 of the top of piston 4, extend injection well downhole flow regulator service life.
Exemplified as above is only for example, not forming to the scope of protection of the utility model to of the present utility model
Limitation, it is every to be belonged to the same or analogous design of the utility model within the scope of protection of the utility model.
Claims (5)
1. a kind of injection well downhole flow regulator of the two-tube dispensing Operating Pressure of routine, including outer tube（1）, outer tube（1）Built with hollow inner tube, and
Inner and outer tubes（1）Between formed a circular passage, it is characterised in that：The outer tube（1）Tube wall be provided with waterflood path
（7）, the waterflood path（7）Spring base is inside sequentially provided with from top to bottom（2）, spring（3）And piston（4）, the piston（4）With
Waterflood path（7）Leave gap, piston in bottom（4）Pass through pin（5）With outer tube（1）Tube wall fix, waterflood path（7）On set
There is apopore（6）And inlet opening（8）, the apopore（6）It is communicated to outer tube（1）Outside, apopore（6）Positioned at piston（4）With
Waterflood path（7）Above gap between bottom, the inlet opening（8）Connected with circular passage, inlet opening（8）Positioned at piston
（4）Lower section.
2. the injection well downhole flow regulator of conventional two-tube dispensing Operating Pressure as claimed in claim 1, it is characterised in that：The waterflood path
（7）Bottom is provided with boss, the piston（4）The big bottom in top it is small.
3. the injection well downhole flow regulator of conventional two-tube dispensing Operating Pressure as claimed in claim 2, it is characterised in that：The pin（5）Not
After cutting or stopping note, piston（4）It is stuck in waterflood path（7）Boss on, piston（4）Outside and waterflood path（7）Inwall
It is affixed.
4. the injection well downhole flow regulator of conventional two-tube dispensing Operating Pressure as claimed in claim 1, it is characterised in that：The spring base（2）
It is connected through a screw thread and is fixed on waterflood path（7）It is interior.
5. the injection well downhole flow regulator of conventional two-tube dispensing Operating Pressure as claimed in claim 1, it is characterised in that：The piston（4）Under
Sealing ring is provided with the outside of portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721098879.3U CN207177859U (en) | 2017-08-30 | 2017-08-30 | A kind of injection well downhole flow regulator of the two-tube dispensing Operating Pressure of routine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721098879.3U CN207177859U (en) | 2017-08-30 | 2017-08-30 | A kind of injection well downhole flow regulator of the two-tube dispensing Operating Pressure of routine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207177859U true CN207177859U (en) | 2018-04-03 |
Family
ID=61738548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721098879.3U Active CN207177859U (en) | 2017-08-30 | 2017-08-30 | A kind of injection well downhole flow regulator of the two-tube dispensing Operating Pressure of routine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207177859U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209311A (en) * | 2018-11-01 | 2019-01-15 | 中国石油天然气股份有限公司 | A kind of level pressure water dispensing apparatus |
| CN110259422A (en) * | 2019-07-05 | 2019-09-20 | 中国石油天然气股份有限公司 | The two-tube dispensing operation device under pressure of one kind and method |
-
2017
- 2017-08-30 CN CN201721098879.3U patent/CN207177859U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209311A (en) * | 2018-11-01 | 2019-01-15 | 中国石油天然气股份有限公司 | A kind of level pressure water dispensing apparatus |
| CN110259422A (en) * | 2019-07-05 | 2019-09-20 | 中国石油天然气股份有限公司 | The two-tube dispensing operation device under pressure of one kind and method |
| CN110259422B (en) * | 2019-07-05 | 2023-11-28 | 中国石油天然气股份有限公司 | Double-pipe separate injection operation device and method under pressure |
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