CN202832314U - Novel well flushing device - Google Patents
Novel well flushing device Download PDFInfo
- Publication number
- CN202832314U CN202832314U CN 201220518223 CN201220518223U CN202832314U CN 202832314 U CN202832314 U CN 202832314U CN 201220518223 CN201220518223 CN 201220518223 CN 201220518223 U CN201220518223 U CN 201220518223U CN 202832314 U CN202832314 U CN 202832314U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- flushing
- ball
- under
- 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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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model provides a novel well flushing device which belongs to an oil field production device. The novel well flushing device comprises a pump cylinder. A first valve seat under a piston is provided with a first valve ball. A second valve seat above the piston is provided with a second valve ball. A first valve cover is under the first valve seat. A first fixed valve seat is mounted under the first valve cover. The first fixed valve seat is provided with the first valve ball. A normal screen pipe is under a well flushing protector. A tail block is fixed under the normal screen pipe. A second valve cover is installed between the well flushing protector and the normal screen pipe. A second valve seat is under the second valve seat. A second ball is installed above the second valve seat. When the novel well flushing device is used, the flushing fluid is loaded into downhole and the second valve ball is closed. The flushing fluid can be prevented from running out of the normal screen pipe. The waste of the flushing fluid can be reduced and the effect of the well flushing is improved. The novel well flushing device has the advantages of simple structure, easy manufacture, and reliable use.
Description
Technical field
The utility model provides a kind of field produces device, especially a kind of well washing apparatus.
Background technology
Well-flushing is constructing operation common in the field produces.Present well washing apparatus unreasonable structure causes flushing fluid to flow out in the common screen casing of its underpart, thereby causes the loss waste of flushing fluid, reduces well washing effect.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of novel well washing apparatus, to reduce the loss waste of flushing fluid.
The utility model is to realize like this; a kind of novel well washing apparatus; it has pump barrel; piston is installed in the pump barrel; above the first valve seat of piston bottom the first valve ball is installed; above second valve seat on piston top the second valve ball is installed; the first valve cover is arranged below the first valve seat; the first standing valve seat is arranged below the first valve cover; above the first standing valve seat the first valve ball is installed, below described pump barrel, is fixed with wire-wrapped screen, be fixed with flushing protector below the wire-wrapped screen; there is leather cup the flushing protector outside; common screen casing is arranged below the flushing protector, be fixed with tail below the common screen casing stifled, between described flushing protector and common screen casing, the second valve cover is arranged; the second standing valve seat is arranged below the second valve cover, the second valve ball of hollow is installed above the second standing valve seat.
Adopt the well washing apparatus of said structure, in the use procedure, when sending into flushing fluid to the down-hole, the sealing of the second valve ball can prevent that the common screen casing of flushing fluid below it from flowing out, and has reduced the loss waste of flushing fluid, has improved well washing effect.And simple and reasonable, be easy to make, use reliable.
Description of drawings
Fig. 1 is the schematic diagram of the utility model structure.
The specific embodiment
The embodiment that provides below in conjunction with accompanying drawing further specifies the utility model.
As shown in drawings; a kind of Novel washing well device of the utility model; it has pump barrel 5; piston 4 is installed in the pump barrel; above the first valve seat 7 of piston bottom the first valve ball 6 is installed; above second valve seat 3 on piston top the second valve ball 2 is installed; the first valve cover 8 is arranged below the first valve seat; the first standing valve seat 10 is arranged below the first valve cover; the first valve ball 9 is installed above the first standing valve seat; below described pump barrel 5, be fixed with wire-wrapped screen 12; be fixed with flushing protector 13 below the wire-wrapped screen; there is leather cup 14 the flushing protector outside; common screen casing 18 is arranged below the flushing protector, be fixed with tail below the common screen casing stifled 19, the second valve cover 15 is arranged between described flushing protector 13 and common screen casing 18; have below the second valve cover the second standing valve seat 17, the second standing valve seats above the second valve ball 16 of hollow is installed.
During use, flushing fluid enters the down-hole, flows out from wire-wrapped screen and carries out well-flushing.At this moment, under the pressure-acting of flushing fluid, the second valve ball seals the valve opening on the second standing valve seat, and flushing fluid can again toward dirty, therefore not prevent the loss of flushing fluid.And move on the piston when sucker rod 1 drives, and when being pumped into the liquid behind the well-flushing on the ground, liquid upwards flows, the second valve ball floats, and breaks away from the second standing valve seat.
Below the first standing valve seat 10, guard shield 11 can be arranged, enter in the valve opening above it to reduce as far as possible dirt in the liquid, prevent that dirt from depositing in the first standing valve, avoid occurring the stifled problem of the first standing valve dirt.In the outside of this well washing apparatus sleeve pipe 20 is arranged.
Claims (1)
1. novel well washing apparatus; it has pump barrel (5); piston (4) is installed in the pump barrel; above first valve seat (7) of piston bottom the first valve ball (6) is installed; above second valve seat (3) on piston top the second valve ball (2) is installed; the first valve cover (8) is arranged below the first valve seat; the first standing valve seat (10) is arranged below the first valve cover; the first valve ball (9) is installed above the first standing valve seat; below described pump barrel (5), be fixed with wire-wrapped screen (12); be fixed with flushing protector (13) below the wire-wrapped screen; there is leather cup (14) the flushing protector outside; common screen casing (18) is arranged below the flushing protector; be fixed with tail stifled (19) below the common screen casing, it is characterized in that between described flushing protector (13) and common screen casing (18), the second valve cover (15) being arranged; the second standing valve seat (17) is arranged below the second valve cover, second valve ball (16) of hollow is installed above the second standing valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220518223 CN202832314U (en) | 2012-10-11 | 2012-10-11 | Novel well flushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220518223 CN202832314U (en) | 2012-10-11 | 2012-10-11 | Novel well flushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832314U true CN202832314U (en) | 2013-03-27 |
Family
ID=47944046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220518223 Expired - Fee Related CN202832314U (en) | 2012-10-11 | 2012-10-11 | Novel well flushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832314U (en) |
-
2012
- 2012-10-11 CN CN 201220518223 patent/CN202832314U/en not_active Expired - Fee Related
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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: 20130327 Termination date: 20131011 |