CN2219373Y - Waterpower impulse vibrator for oil well - Google Patents
Waterpower impulse vibrator for oil well Download PDFInfo
- Publication number
- CN2219373Y CN2219373Y CN 94220476 CN94220476U CN2219373Y CN 2219373 Y CN2219373 Y CN 2219373Y CN 94220476 CN94220476 CN 94220476 CN 94220476 U CN94220476 U CN 94220476U CN 2219373 Y CN2219373 Y CN 2219373Y
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- CN
- China
- Prior art keywords
- oil
- spray orifice
- nozzle body
- resonator shell
- clogging
- 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 waterpower impulse vibrator for oil wells, which is used for removing the clogging of oil layers near well zones in oil fields and is composed of a salvage head (1), a press cover (2), a spring (3), a supporting seat (4), cams (5), a torsion spring (6), a cam shaft (7), an upper contact (8), an outer housing of a cavity resonator (9), a nozzle body (10), a water inlet cap (11), etc. The utility model has the obvious effect of removing clogging by vibration for the clogging of oil layers near well zones, and has the characteristics of simple structure, easy fabrication, low cost, high energy conversion efficiency, wide pulse frequency, large amplitude, convenient practical application process, etc. The utility model can be widely used for removing clogging in oil wells and water wells.
Description
The utility model relates to the oil field downhole tool, especially for the hydraulic vibration device of handling the near wellbore zone oil layer blocking.
Disclose the fluid self-excited vibration method of " helmholtz resonator " in " transient flow " book that hydraulic power publishing house published in 1983, " University of Petroleum's journal " in 1993 third phase discloses the impulse hunting method of " rock bit self-excited oscillation pulse nozzle "; Its principle all is to make jet produce the vibration of collar vortex stream by resonator, reaches the purpose that improves drilling efficiency.But present technology can't provide a kind of effective instrument and method for the removing of down-hole oil layer blocking.
The purpose of this utility model is to handle for the obstruction of near wellbore zone, oil field oil reservoir a kind of easy, waterpower pulse vibration unplugging instrument efficiently is provided, to reach the purpose that improves oil reservoir injectivity index and percolation ability.
The following measure of the purpose of this utility model realizes: a kind of oil well waterpower pulse vibrator that is used for removing near wellbore zone, oil field oil layer blocking comprises pulling part, top connection and water inlet cap etc.It is characterized in that the pulling part is connected with the top connection of elongate tubular, a resonator shell is installed in the top connection lower tube, the resonator shell is down bowl shaped structure, its top seal end center processing one outlet spray orifice; Be connected with a columniform nozzle body below the resonator shell, nozzle body center is processed with conical spray orifice along axis; Connect the water inlet cap below the nozzle body.
The purpose of this utility model can also realize by following measure: the upper surface that the resonator shell is processed with the last blind end of outlet spray orifice is the rounding conical surface; The last blind end inner face that the resonator shell is processed with the outlet spray orifice is the rounding conical surface; There is one section cylindrical hole the conical spray orifice lower end of nozzle body center processing.
The utlity model has characteristics such as simple in structure, easy to process, that cost is low, its energy conversion efficiency height, pulse frequency is wide, amplitude is big, and practical application technology is easy, for the near wellbore zone oil layer blocking tangible vibration unplugging effect is arranged; Can be widely used in the de-plugging operation of oil, well.
Fig. 1 is the structural representation of oil well waterpower pulse vibrator.
Oil well waterpower pulse vibrator is made up of fishing head (1), gland (2), spring (3), supporting seat (4), cam (5), torsion spring (6), camshaft (7), top connection (8), resonator shell (9), nozzle body (10), water inlet cap (11) etc.Be connected with in top connection (8) lower tube of elongate tubular of fishing head (1), cam pullings such as (5) part a resonator shell (9) is installed; Resonator shell (9) is down bowl shaped structure, its top seal end center processing one outlet spray orifice, and the blind end upper surface that is processed with the outlet spray orifice is that the rounding conical surface, inner face also are the rounding conical surface; Be connected with a columniform nozzle body (10) below the resonator shell (9), nozzle body (10) center is processed with conical spray orifice along axis, and one section cylindrical hole is arranged at conical spray orifice bottom; Nozzle body (10) down plane connection structure is the water inlet cap (11) of the lower end plug shape that is processed with open-work.
The operating principle of oil well waterpower pulse vibrator is: the high pressure liquid stream that the cap of intaking certainly (11) flows into, behind the conical spray orifice cumulative at nozzle body (10) center, inject in the resonator in the resonator shell (9), and then go up the outlet spray orifice ejection at blind end center from resonator shell (9); Owing to inject the lasting energy that high-pressure fluid had and the initial pulsation of resonator, amplification of the selectivity of unstable shear layer and jet feed back under the effect of formed closed-loop in resonator, make the high pressure liquid stream of the continous-stable of the resonator of flowing through transform into periodic high-frequency impulse jet.When this periodic high-frequency impulse jet action behind the stratum, it is tired broken that obstruction in the oil reservoir is produced, and come off from the hole wall, reached the purpose of de-plugging; Simultaneously, oil reservoir can produce microcrack under the high-frequency impulse jet action, and the crack also can deeply be extended gradually with impulse wave, thereby has improved the penetrating power on stratum.
Claims (4)
1, a kind of oil well waterpower pulse vibrator that is used for removing near wellbore zone, oil field oil layer blocking, comprise pulling part, top connection and water inlet cap etc., it is characterized in that the pulling part is connected with the top connection of elongate tubular, one resonator shell is installed in the top connection lower tube, the resonator shell is down bowl shaped structure, its top seal end center processing one outlet spray orifice; Be connected with a columniform nozzle body below the resonator shell, nozzle body center is processed with conical spray orifice along axis; Connect the water inlet cap below the nozzle body.
2, device according to claim 1 is characterized in that: the upper surface that the resonator shell is processed with the last blind end of outlet spray orifice is the rounding conical surface.
3, device according to claim 1 and 2 is characterized in that: the last blind end inner face that the resonator shell is processed with the outlet spray orifice is the rounding conical surface.
4, device according to claim 3 is characterized in that: there is one section cylindrical hole the conical spray orifice lower end of nozzle body center processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94220476 CN2219373Y (en) | 1994-09-02 | 1994-09-02 | Waterpower impulse vibrator for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94220476 CN2219373Y (en) | 1994-09-02 | 1994-09-02 | Waterpower impulse vibrator for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2219373Y true CN2219373Y (en) | 1996-02-07 |
Family
ID=33835065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94220476 Expired - Fee Related CN2219373Y (en) | 1994-09-02 | 1994-09-02 | Waterpower impulse vibrator for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2219373Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422826A (en) * | 2013-08-08 | 2013-12-04 | 中国地质大学（武汉） | Multipurpose water pulse device used in well |
| CN108979605A (en) * | 2018-09-18 | 2018-12-11 | 中国石油集团西部钻探工程有限公司 | The method of impulse wave heavy crude producing device and impulse wave heavy crude producing |
| CN110107258A (en) * | 2019-06-14 | 2019-08-09 | 南京聚源隆能源科技有限公司 | A kind of waterpower pulse wave augmented injection device |
| CN112145110A (en) * | 2020-11-02 | 2020-12-29 | 东北石油大学 | Hydraulic pulse oscillation device |
-
1994
- 1994-09-02 CN CN 94220476 patent/CN2219373Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422826A (en) * | 2013-08-08 | 2013-12-04 | 中国地质大学（武汉） | Multipurpose water pulse device used in well |
| CN103422826B (en) * | 2013-08-08 | 2015-10-14 | 中国地质大学（武汉） | A kind of multiplex WIH power pulser |
| CN108979605A (en) * | 2018-09-18 | 2018-12-11 | 中国石油集团西部钻探工程有限公司 | The method of impulse wave heavy crude producing device and impulse wave heavy crude producing |
| CN110107258A (en) * | 2019-06-14 | 2019-08-09 | 南京聚源隆能源科技有限公司 | A kind of waterpower pulse wave augmented injection device |
| CN110107258B (en) * | 2019-06-14 | 2024-04-02 | 南京聚源隆能源科技有限公司 | Hydraulic pulse wave injection increasing device |
| CN112145110A (en) * | 2020-11-02 | 2020-12-29 | 东北石油大学 | Hydraulic pulse oscillation device |
| CN112145110B (en) * | 2020-11-02 | 2022-08-30 | 东北石油大学 | Hydraulic pulse oscillation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |