CN2573671Y - Throttling plugging device - Google Patents
Throttling plugging device Download PDFInfo
- Publication number
- CN2573671Y CN2573671Y CN 02273518 CN02273518U CN2573671Y CN 2573671 Y CN2573671 Y CN 2573671Y CN 02273518 CN02273518 CN 02273518 CN 02273518 U CN02273518 U CN 02273518U CN 2573671 Y CN2573671 Y CN 2573671Y
- Authority
- CN
- China
- Prior art keywords
- hole
- main body
- throttling
- utility
- core body
- 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 - Fee Related
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Abstract
The utility model relates to a throttling plugging device relating to a plugging device used on a water distributor of a pipe column and a water injection well of an oil field. The utility model comprises a fishing head (1), a press cap (2), a main body (3), and a bottom plug (4), wherein, the right end of the main body (3) is connected with the left end of the bottom plug (4), a groove (3-1) is arranged on the main body (3), the right end of the main body (3) is provided with a hole (3-2), a hole (4-1) is arranged on the bottom plug (4), and grooves (4-2) are arranged on the external circumference and the end part of the right end of the bottom plug (4). The utility model also comprises a core body (5) which is arranged in the hole (3-2). The utility model has the advantages of reasonable design and structure and favorable pressure reduction effect and throttling effect. The goals of pressure reduction and throttling operation in a large scale can be reached. Meanwhile, the plugging phenomenon is avoided, and the requirements of different water injection strata can be satisfied by the match of spiral core bodies in different specifications.
Description
Technical field: the utility model relates to a kind of blanking plug of using on the water injection well in oil fields tubing string injection well downhole flow regulator.
Background technology: water injection well in oil fields tubing string blanking plug is the water nozzle that different apertures are housed on injection well downhole flow regulator at present, the needs that adapt to each water filling layer by water nozzle step-down throttling, but water faucet structure does not satisfy actual requirement at present, be straight-through waterflood path as weep hole through the water nozzle of easy blockage phenomenon of less water nozzle and existing blanking plug, waterpower is little along the resistance of journey, though existing at present screw type throttling water nozzle is because the restriction in space can not reach desirable step-down restriction effect.
Summary of the invention: the utility model is a kind of throttling blanking plug of development, makes it have good throttle effect, not susceptible to plugging characteristics.The utility model mainly comprises fishing head 1, pressure cap 2, main body 3, the end stifled 4; The left end at the right-hand member of main body 3 and the end stifled 4 is connected, has groove 3-1 on main body 3, is provided with hole 3-2 at the right-hand member of main body 3, is provided with hole 4-1 on the end stifled 4, reaches the end and have groove 4-2 on the right-hand member excircle at the end stifled 4.It also comprises core body 5, and core body 5 is arranged in the 3-2 of hole.The utility model reasonable in design, the step-down good throttle effect can reach the purpose of step-down throttling significantly, has avoided clogging simultaneously, can satisfy the needs on different injection stratum by the spiral core of matching different size.
Description of drawings: Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the structural representation of core body 5 in the specific embodiment two.
The specific embodiment one: present embodiment is stifled 4 by fishing head 1, pressure cap 2, main body 3, the end, core body 5 is formed; The left end at the right-hand member of main body 3 and the end stifled 4 is connected, has groove 3-1 on main body 3, is provided with hole 3-2 at the right-hand member of main body 3, is provided with hole 4-1 on the end stifled 4, reaches the end and have groove 4-2 on the right-hand member excircle at the end stifled 4, and core body 5 is arranged in the 3-2 of hole.
The specific embodiment two: present embodiment is provided with helicla flute 5-1 at the middle part of core body 5, left end at helicla flute 5-1 is provided with radial hole 5-2, be provided with the hole 5-3 that is connected with hole 5-2 in the left side of core body 5, right-hand member at helicla flute 5-1 is provided with radial hole 5-4, be provided with the hole 5-5 that is connected with hole 5-4 in the right side of core body 5, be provided with baffle ring body 5-6 at the right-hand member of core body 5.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment three: the number of the helicla flute 5-1 of present embodiment core body 5 is at least one.Other composition is identical with the specific embodiment two with annexation.
The specific embodiment four: the section of the helicla flute 5-1 of present embodiment core body 5 is an arbitrary shape.
Operating principle: stifled 4 right-hand member enters into hole 4-1 the end of from water filling, enters hole 5-5 again.Enter in the helicla flute 5-1 of core body 5 through radial hole 5-4, radial hole 5-2 and the hole 5-3 by core body 5 left ends flows out again, and water filling increases the waterpower linear loss through the helicla flute 5-1 on the core body 5, has reached the purpose of step-down throttling significantly.
Claims (3)
1, throttling blanking plug, it comprises fishing head (1), pressure cap (2), main body (3), the end stifled (4), the right-hand member of main body (3) is connected with the left end of the end stifled (4), on main body (3), have groove (3-1), right-hand member in main body (3) is provided with hole (3-2), is provided with hole (4-1) on the end stifled (4), reaches the end and have groove (4-2) on the right-hand member excircle of the end stifled (4), it is characterized in that it also comprises core body (5), core body (5) is arranged in the hole (3-2).
2, throttling blanking plug according to claim 1, it is characterized in that being provided with helicla flute (5-1) at the middle part of core body (5), left end at helicla flute (5-1) is provided with radial hole (5-2), be provided with the hole (5-3) that is connected with hole (5-2) in the left side of core body (5), right-hand member at helicla flute (5-1) is provided with radial hole (5-4), be provided with the hole (5-5) that is connected with hole (5-4) in the right side of core body (5), be provided with baffle ring body (5-6) at the right-hand member of core body (5).
3, throttling blanking plug according to claim 2 is characterized in that a number of the helicla flute (5-1) of core body (5) is at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02273518 CN2573671Y (en) | 2002-05-24 | 2002-05-24 | Throttling plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02273518 CN2573671Y (en) | 2002-05-24 | 2002-05-24 | Throttling plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2573671Y true CN2573671Y (en) | 2003-09-17 |
Family
ID=33737968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02273518 Expired - Fee Related CN2573671Y (en) | 2002-05-24 | 2002-05-24 | Throttling plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2573671Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266165A (en) * | 2014-09-17 | 2015-01-07 | 中科华核电技术研究院有限公司 | Once-through steam generator parallel pipe group throttling element |
-
2002
- 2002-05-24 CN CN 02273518 patent/CN2573671Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266165A (en) * | 2014-09-17 | 2015-01-07 | 中科华核电技术研究院有限公司 | Once-through steam generator parallel pipe group throttling element |
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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: 20030917 Termination date: 20100524 |