CN202108483U - Sector-shaped surrounding flow shaft water injection well choke - Google Patents
Sector-shaped surrounding flow shaft water injection well choke Download PDFInfo
- Publication number
- CN202108483U CN202108483U CN2011201200882U CN201120120088U CN202108483U CN 202108483 U CN202108483 U CN 202108483U CN 2011201200882 U CN2011201200882 U CN 2011201200882U CN 201120120088 U CN201120120088 U CN 201120120088U CN 202108483 U CN202108483 U CN 202108483U
- Authority
- CN
- China
- Prior art keywords
- segment
- section
- section segment
- sector
- inducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
A sector-shaped surrounding flow shaft water injection well choke is applied to the technical field of oil field layered water injection. A central shaft is arranged on an end face of a cylindrical feeding section, the inner wall of the central shaft is provided with a first sector body, a second sector body, a third sector body, a fourth sector body, a fifth sector body, a sixth sector body, a seventh sector body, an eighth sector body and a ninth sector body which are continuously arranged. Outer arc faces of sections of sector bodies are arranged in one cylinder face. The sector-shaped surrounding flow shaft water injection well choke has the advantages that shaft surrounding groove-type channels are formed between the sector bodies by combination. The sections of the channels change repeatedly so that the fluid state of the injection water is changed, and the friction drag along the travel of the fluid is enlarged. Accordingly, the diameter of the injection well choke is enlarged without lowering capability of flow restriction of a traditional water injection well choke so as to resolve the problem that a small-diameter injection well choke of low-permeating oil field is easy to block.
Description
Technical field
The utility model relates to the separated-zone water infection oil field technical field, and particularly a kind of is the water nozzle that low-permeability oilfield seperated layer water injection slot type streams axis body.
Background technology
At present, rationally qualified seperated layer water injection has significant effect to improving oil recovery rate.At present, the serial water nozzles of regular circular aperture that adopt carry out injection allocation more during separated-zone water infection oil field.And receive the influence of low permeability oil field geology non-homogeneity characteristics, and select the minor diameter circular hole water nozzle of 2～4mm to increase chock pressure difference during seperated layer water injection usually, make the water nozzle outlet pressure reach the required injection allocation pressure in stratum.Yet; Inject water and contain certain mechanical admixture, solid particle and heavy ion etc.; These impurity are easy to deposition, attached within the water nozzle and result in blockage; The low permeability oil field throttling need adopt the minor diameter water nozzle to carry out water filling in addition, and this affects low permeability oil field distribution apparatus operation stability and the actual injection allocation effect of seperated layer water injection.
The utility model content
The purpose of the utility model is: a kind of fan-shaped axis body water nozzle that streams is provided; Through changing the structure of conventional circular hole water nozzle; Under the condition that does not reduce original water nozzle throttling capacity, increase the water nozzle diameter, solve the problem of low-permeability oilfield minor diameter water nozzle easy blocking effectively.
The technical scheme that the utility model adopts is: the fan-shaped axis body water nozzle that streams; Mainly form by inducer, central axis, first section segment, second section segment 4, the 3rd section segment, the 4th section segment, the 5th section segment, the 6th section segment, the 7th section segment, the 8th section segment and the 9th section segment; It is characterized in that: inducer is the cylinder bodily form; An end face at inducer has a central axis, and the center line of the vertical and inducer of the end face of central axis and inducer and the center line of central axis are on same straight line; First section segment, second section segment, the 3rd section segment, the 4th section segment, the 5th section segment, the 6th section segment, the 7th section segment, the 8th section segment and the 9th section segment are arranged on the wall of central axis continuously; The exterior arc surface of first section segment, second section segment, the 3rd section segment, the 4th section segment, the 5th section segment, the 6th section segment, the 7th section segment, the 8th section segment and the 9th section segment is in the same face of cylinder;
Described inducer has a fan-shaped pylone; The cross section of fan-shaped pylone has interior circular arc, external arc and two sides; Intersect at the extended line of other side and inducer center, and inner arc radius is identical with the central axis radius, and external arc is identical with the outer arc radius of first section segment; Lateral location is set at 0 ° of the starting point of circumference, and another lateral location is at 315 ° that are rotated counterclockwise, and promptly the radian of fan-shaped pylone is 65 °; All be the basis for 0 ° in the later description with the circumference starting point of setting.
First section segment is made up of two segments, and the side of a segment cross section originates in 50 ° and left-handedly ends at 100 °, and promptly the radian of this segment is 50 °; The side of another segment cross section originates in 260 ° and left-handedly ends at 315 °, and promptly the radian of this segment is 55 °;
Second section segment is made up of two segments, and the side of a segment cross section originates in 155 ° and left-handedly ends at 205 °, and promptly the radian of this segment is 50 °; The side of another segment cross section originates in 300 ° and left-handedly ends at 380 ° (0 ° of circumference starting point), and promptly the radian of this segment is 80 °;
The 3rd section segment has a segment, and the side of segment cross section originates in 300 ° and left-handedly ends at 255 °, and promptly the radian of this segment is 335 °;
The 4th section segment is identical with second section segment 4;
The 5th section segment is identical with first section segment 3;
The 6th section segment has a segment, and the side of segment cross section originates in 0 ° and left-handedly ends at 315 °, and promptly the radian of this segment is 315 °;
The 7th section segment is identical with first section segment 3;
The 8th section segment is identical with second section segment 4;
The 9th section segment is identical with the 3rd section segment 5.
First section segment, second section segment, the 3rd section segment, the 4th section segment, the 5th section segment, the 6th section segment, the 7th section segment, the 8th section segment are identical with the thickness of the 9th section segment.
During use; The fan-shaped axis body water nozzle that streams is installed in the cylindrical housing of injection well downhole flow regulator; Lateral surface and injection well downhole flow regulator are combined closely; Form an airtight flow channels by injection well downhole flow regulator internal face and water nozzle axis body, the high-pressure well flow gets into from the fan-shaped pylone of inducer 1, arrives the 9th section segment 11 at last and flows out with the fan-shaped outlet that the water nozzle shell is formed.Well liquid flows around the rotation of axial trough formula passage in the fan groove of different arc, flows out at last.
The beneficial effect of the utility model: the fan-shaped axis body water nozzle that streams of the utility model; Be combined to form between each section segment around axial trough formula passage,, changed the fluidised form of injecting water because channel cross-section repeatedly changes; Increase fluid along the journey frictional resistance; Thereby can be implemented under the condition that does not reduce existing water nozzle throttling capacity, increase the water nozzle diameter, in order to solve the problem of low permeability oil field minor diameter water nozzle easy blocking.Satisfy the become more meticulous technical requirements of water filling of low-permeability oilfield.
Description of drawings
Fig. 1 is the fan-shaped axis body water faucet structure axle side sketch map that streams of the utility model.
Fig. 2 is inducer 1 sectional drawing.
Fig. 3 is the sectional drawing of first section segment 3, the 5th section segment 7 and the 7th section segment 9.
Fig. 4 is the sectional drawing of second section segment 4, the 4th section segment 6 and the 8th section segment 10.
Fig. 5 is the 3rd section segment 5 and the 9th section segment 11 sectional drawings.
Fig. 6 is the 6th section segment 8 sectional drawings.
Among the figure, 1-inducer, 2-central axis, first section segment of 3-; Second section segment of 4-, the 3rd section segment of 5-, the 4th section segment of 6-, the 5th section segment of 7-; The 6th section segment of 8-, the 7th section segment of 9-, the 8th section segment of 10-, the 9th section segment of 11-.
The specific embodiment
Embodiment 1: with a fan-shaped axis body water nozzle that streams is example, and the utility model is done further explain.
Consult Fig. 1.The fan-shaped axis body water nozzle that streams of the utility model mainly is made up of inducer 1, central axis 2, first section segment 3, second section segment 4, the 3rd section segment 5, the 4th section segment 6, the 5th section segment 7, the 6th section segment 8, the 7th section segment 9, the 8th section segment 10 and the 9th section segment 11.Inducer 1 is the cylinder bodily form, at an end face of inducer 1 central axis 2 is arranged, and the center line of the vertical and inducer 1 of the end face of central axis 2 and inducer 1 and the center line of central axis 2 are on same straight line; First section segment 3, second section segment 4, the 3rd section segment 5, the 4th section segment 6, the 5th section segment 7, the 6th section segment 8, the 7th section segment 9, the 8th section segment 10 and the 9th section segment 11 are arranged on the wall of central axis 2 continuously; The exterior arc surface of first section segment 3, second section segment 4, the 3rd section segment 5, the 4th section segment 6, the 5th section segment 7, the 6th section segment 8, the 7th section segment 9, the 8th section segment 10 and the 9th section segment 11 is in the same face of cylinder;
Consult Fig. 2.Described inducer 1 has a fan-shaped pylone; The cross section of fan-shaped pylone has interior circular arc, external arc and two sides; Intersect at the extended line of other side and inducer 1 center, and inner arc radius is identical with central axis 2 radiuses, and external arc is identical with the outer arc radius of first section segment 3; Lateral location is set at 0 ° of the starting point of circumference, and another lateral location is at 315 ° that are rotated counterclockwise, and promptly the radian of fan-shaped pylone is 65 °; All be the basis for 0 ° in the later description with the circumference starting point of setting.
Consult Fig. 3.First section segment 3 is made up of two segments, and the side of a segment cross section originates in 50 ° and left-handedly ends at 100 °, and promptly the radian of this segment is 50 °; The side of another segment cross section originates in 260 ° and left-handedly ends at 315 °, and promptly the radian of this segment is 55 °;
Consult Fig. 4.Second section segment 4 is made up of two segments, and the side of a segment cross section originates in 155 ° and left-handedly ends at 205 °, and promptly the radian of this segment is 50 °; The side of another segment cross section originates in 300 ° and left-handedly ends at 380 ° (0 °), and promptly the radian of this segment is 80 °;
Consult Fig. 5.The 3rd section segment 5 has a segment, and the side of segment cross section originates in 300 ° and left-handedly ends at 255 °, and promptly the radian of this segment is 335 °;
Consult Fig. 4.The 4th section segment 6 is identical with second section segment 4;
Consult Fig. 3.The 5th section segment 7 is identical with first section segment 3;
Consult Fig. 6.The 6th section segment 8 has a segment, and the side of segment cross section originates in 0 ° and left-handedly ends at 315 °, and promptly the radian of this segment is 315 °;
Consult Fig. 3.The 7th section segment 9 is identical with first section segment 3;
Consult Fig. 4.The 8th section segment 10 is identical with second section segment 4;
Consult Fig. 5.The 9th section segment 11 is identical with the 3rd section segment 5.
Like water injection rate is 15m
3During/d, it is basic identical that triple slot types stream the water nozzle in axis body water nozzle restriction effect and conventional circular 2.0mm aperture, and slot type to stream the area of the minimum overflowing end face of axis body water nozzle be 12.56mm
2, compare conventional 2.0 aperture 3.14mm
2Overflow section long-pending, clearly, under identical condition of water quality, slot type streams the axis body water nozzle and is difficult for stopping up.
Claims (2)
1. fan-shaped axis body water nozzle that streams; Mainly form by inducer (1), central axis (2), first section segment (3), second section segment (4), the 3rd section segment (5), the 4th section segment (6), the 5th section segment (7), the 6th section segment (8), the 7th section segment (9), the 8th section segment (10) and the 9th section segment (11); It is characterized in that: inducer (1) is the cylinder bodily form; An end face at inducer (1) has a central axis (2), and the center line of the vertical and inducer (1) of the end face of central axis (2) and inducer (1) and the center line of central axis (2) are on same straight line; First section segment (3), second section segment (4), the 3rd section segment (5), the 4th section segment (6), the 5th section segment (7), the 6th section segment (8), the 7th section segment (9), the 8th section segment (10) and the 9th section segment (11) are arranged on the wall of central axis (2) continuously; The exterior arc surface of first section segment (3), second section segment (4), the 3rd section segment (5), the 4th section segment (6), the 5th section segment (7), the 6th section segment (8), the 7th section segment (9), the 8th section segment (10) and the 9th section segment (11) is in the same face of cylinder;
Described inducer (1) has a fan-shaped pylone; The cross section of fan-shaped pylone has interior circular arc, external arc and two sides; Intersect at the extended line of other side and inducer (1) center; Inner arc radius is identical with central axis (2) radius, and external arc is identical with the outer arc radius of first section segment (3); Lateral location is set at 0 ° of the starting point of circumference, and another lateral location is at 315 ° that are rotated counterclockwise, and promptly the radian of fan-shaped pylone is 65 °;
First section segment (3) is made up of two segments, and the side of a segment cross section originates in 50 ° and left-handedly ends at 100 °, and promptly the radian of this segment is 50 °; The side of another segment cross section originates in 260 ° and left-handedly ends at 315 °, and promptly the radian of this segment is 55 °;
Second section segment (4) is made up of two segments, and the side of a segment cross section originates in 155 ° and left-handedly ends at 205 °, and promptly the radian of this segment is 50 °; The side of another segment cross section originates in 300 ° and left-handedly ends at 380 °, and promptly the radian of this segment is 80 °;
The 3rd section segment (5) has a segment, and the side of segment cross section originates in 300 ° and left-handedly ends at 255 °, and promptly the radian of this segment is 335 °;
The 4th section segment (6) is identical with second section segment (4);
The 5th section segment (7) is identical with first section segment (3);
The 6th section segment (8) has a segment, and the side of segment cross section originates in 0 ° and left-handedly ends at 315 °, and promptly the radian of this segment is 315 °;
The 7th section segment (9) is identical with first section segment (3);
The 8th section segment (10) is identical with second section segment (4);
The 9th section segment (11) is identical with the 3rd section segment (5).
2. the fan-shaped axis body water nozzle that streams according to claim 1 is characterized in that: first section segment (3), second section segment (4), the 3rd section segment (5), the 4th section segment (6), the 5th section segment (7), the 6th section segment (8), the 7th section segment (9), the 8th section segment (10) are identical with the thickness of the 9th section segment (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201200882U CN202108483U (en) | 2011-04-22 | 2011-04-22 | Sector-shaped surrounding flow shaft water injection well choke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201200882U CN202108483U (en) | 2011-04-22 | 2011-04-22 | Sector-shaped surrounding flow shaft water injection well choke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108483U true CN202108483U (en) | 2012-01-11 |
Family
ID=45433919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201200882U Expired - Lifetime CN202108483U (en) | 2011-04-22 | 2011-04-22 | Sector-shaped surrounding flow shaft water injection well choke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202108483U (en) |
-
2011
- 2011-04-22 CN CN2011201200882U patent/CN202108483U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105114368B (en) | A kind of have the rotary work(exchanger extending influent stream corner structure | |
| CN107956459A (en) | A kind of foam injection device and its application method and installation method | |
| CN202108483U (en) | Sector-shaped surrounding flow shaft water injection well choke | |
| CN107606325A (en) | Polyethylene solid wall pipe | |
| CN204877422U (en) | Porous spherically seated sliding sleeve does not have throttle sand jet | |
| CN207268172U (en) | A kind of airlift unit and its gas-lift working barrel | |
| CN104612583A (en) | Hydraulic hammer flow diversion mechanism, hydraulic hammer and down-hole drilling rig | |
| EP2458144A1 (en) | Flow control screen tube for use in oil recovery process | |
| CA2911725C (en) | Fluid control device and fluid control system | |
| CN202690023U (en) | Inside seal type flow divider | |
| CN205330637U (en) | Sand control pipe for oil development | |
| CN105299263B (en) | A kind of reversal valve for being applied to conveying silica gel mill base | |
| CN205002288U (en) | Cylinder type energy storage equipment water distribution uniformity device | |
| CN206376821U (en) | The float valve and Double-pipe device of two-tube annular space | |
| CN207499854U (en) | The constant flow water filling jet pipe for principle of being jammed based on machinery | |
| CN107255151A (en) | A kind of planet wheel shaft structure | |
| CN204022444U (en) | Filling valve | |
| CN113309906A (en) | Physical resistance reducing device and method for oil and gas pipeline | |
| CN206309569U (en) | A kind of double travelling valve plunger gap bridge oil well pumps | |
| CN203176076U (en) | Pipeline pulse stream generator | |
| CN202691106U (en) | Valve | |
| CN208486867U (en) | A kind of Zigzag type seperated layer water injection valve core structure | |
| CN104140067B (en) | Filling valve | |
| CN204609759U (en) | Hydro-efflux Hammer diversion mechanism, Hydro-efflux Hammer and down hole drill device | |
| RU87745U1 (en) | CHECK VALVE |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |