CN103510916A - Jet flow well flushing device - Google Patents
Jet flow well flushing device Download PDFInfo
- Publication number
- CN103510916A CN103510916A CN201310472022.3A CN201310472022A CN103510916A CN 103510916 A CN103510916 A CN 103510916A CN 201310472022 A CN201310472022 A CN 201310472022A CN 103510916 A CN103510916 A CN 103510916A
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- China
- Prior art keywords
- well
- flushing
- water
- water inlet
- jet flow
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- 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.)
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Abstract
The invention discloses a well flushing device of a water injection well and relates to a well flushing device, in particular to a well flushing device utilizing jet flow for flushing a well. The well flushing device of the water injection well comprises a hollow cylindrical body, and a packer arranged in the body is movably arranged in the body. Part of the side wall of the body extends to the outside of the side wall of the body and is provided with a jet flow device. A water inlet and a water outlet are formed in the jet flow device. The water inlet extends to the outside of the body, and the water outlet is communicated with the interior of the body. The water inlet and the water outlet are formed in the two sides of the packer respectively. The well washing device of the water injection well is connected to an oil pipe in a sleeved mode, when water is injected normally, the packer is opened, when well flushing work is performed, the packer is blocked, flushing fluid can be injected from a casing pipe, and the flushing liquid enters from the water inlet and is discharged from the water outlet. The jet flow well flushing device is simple in structure and high in practicability.
Description
Technical field
The present invention relates to a kind of well washing apparatus, particularly a kind of well-washing device that utilizes jet washing well.
Background technology
In order to extend the application life of packer and to improve sealing effectiveness, Daqing oil field fractional water flooding down-hole has entered not well packer capable of flushing well layering oil pipe, due to can not well-flushing, time has been grown the well having and has occurred that injection rate declines, along with long use, a large amount of greasy dirts are deposited in well, have caused oil well to note the situation of not intaking, need integral replacing Wel packing, caused the waste of resource.
Summary of the invention
The present invention is intended to propose a kind of flushing device for water injection well.
A kind of flushing device for water injection well of the present invention, the cylindrical body that comprises hollow, body interior is provided with the plugging device that is movably set in body interior, a part for described body sidewall extends to outside and is provided with a fluidic device, this fluidic device is provided with water inlet and delivery port, described water inlet extends to body exterior, and described is connected with body interior with delivery port, and described water inlet and delivery port arrange respectively and plugging device both sides.
Preferably, described described fluidic device inside is provided with horn-like ejector and infundibulate nozzle, and this infundibulate nozzle and horn-like ejector are socketed mutually, and described infundibulate nozzle is arranged at water inlet.
A kind of flushing device for water injection well of the present invention, this this device is socketed on oil pipe, during normal water filling, packer is opened, during clean-out service by packer shutoff, flushing fluid is injected from sleeve pipe, flushing fluid is entered from water inlet, from delivery port, discharge, the present invention is simple in structure, practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
1-body in figure; 2-plugging device; The horn-like ejector of 3-; 4-infundibulate nozzle.
The specific embodiment
A kind of flushing device for water injection well of the present invention, the cylindrical body 1 that comprises hollow, body 1 inside is provided with the plugging device 2 that is movably set in body 1 inside, a part for body 1 sidewall extends to outside and is provided with a fluidic device, this fluidic device is provided with water inlet and delivery port, described water inlet extends to body 1 outside, described is connected with body 1 inside with delivery port, water inlet and delivery port arrange respectively and plugging device 2 both sides, fluidic device inside is provided with horn-like ejector 3 and infundibulate nozzle 4, this infundibulate nozzle 4 and horn-like ejector 3 are socketed mutually, described infundibulate nozzle 4 is arranged at water inlet.
A kind of flushing device for water injection well of the present invention, is connected to jet-flow well-washing apparatus on oil pipe, is arranged at not washing well Feng Qi top, do not affect at ordinary times normal water filling work, when needs well-flushing, open water inlet and delivery port, from well head, drop into blanking plug, water enters from sleeve pipe, under the effect of jet-flow well-washing apparatus, pumping formation fluid is returned out from water main, through well-flushing several times so repeatedly, just can make obstruction pass through to rinse back and forth loosening, be pumped into ground, reach the object of de-plugging.Flushing device for water injection well of the present invention, the high pressure water that utilization is injected from the sleeve pipe liquid that is used as power, pass through successively infundibulate nozzle 4 and horn-like ejector 3, at water outlet, form high-speed jet, make pressure decreased around form low-pressure area, well liquid carries obstruction under the effect of strata pressure, from oil pipe Fan Chudao ground.
Claims (2)
1. a flushing device for water injection well, it is characterized in that: the cylindrical body (1) that comprises hollow, body (1) inside is provided with and is movably set in the inner plugging device (2) of body (1), a part for described body (1) sidewall extends to outside and is provided with a fluidic device, this fluidic device is provided with water inlet and delivery port, described water inlet extends to body (1) outside, described is connected with body (1) inside with delivery port, and described water inlet and delivery port arrange respectively and plugging device (2) both sides.
2. a kind of flushing device for water injection well as claimed in claim 1, it is characterized in that described fluidic device inside is provided with horn-like ejector (3) and infundibulate nozzle (4), this infundibulate nozzle (4) and horn-like ejector (3) are socketed mutually, and described infundibulate nozzle (4) is arranged at water inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310472022.3A CN103510916A (en) | 2013-10-11 | 2013-10-11 | Jet flow well flushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310472022.3A CN103510916A (en) | 2013-10-11 | 2013-10-11 | Jet flow well flushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103510916A true CN103510916A (en) | 2014-01-15 |
Family
ID=49894281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310472022.3A Pending CN103510916A (en) | 2013-10-11 | 2013-10-11 | Jet flow well flushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103510916A (en) |
-
2013
- 2013-10-11 CN CN201310472022.3A patent/CN103510916A/en active Pending
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Legal Events
| Date | Code | Title | Description |
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| REG | Reference to a national code |
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| WD01 | Invention patent application deemed withdrawn after publication |
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