CN203702514U - Paraffin blocking prevention oil well pump - Google Patents
Paraffin blocking prevention oil well pump Download PDFInfo
- Publication number
- CN203702514U CN203702514U CN201420064385.3U CN201420064385U CN203702514U CN 203702514 U CN203702514 U CN 203702514U CN 201420064385 U CN201420064385 U CN 201420064385U CN 203702514 U CN203702514 U CN 203702514U
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- CN
- China
- Prior art keywords
- valve
- pump
- pinboard
- paraffin
- oil well
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- Expired - Fee Related
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Abstract
The utility model provides a paraffin blocking prevention oil well pump and relates to the field of liquid transfiguration type machines. A plug pin plate is further arranged in an inner cavity of a pump cylinder, located between a lower travelling valve and a standing valve and provided with an oil passing channel vertically penetrating through the plug pin plate, a hollow cavity is arranged in the lower end of the plug pin plate, and the area of the cross section of the hollow cavity is larger than or equal to that of the cross section of a standing valve ball; in addition, a spring is further arranged on a valve base of the standing valve, an annular paraffin scraping block is further arranged between the spring and the plug pin plate, the outer diameter of the paraffin scraping block is the same as the inner diameter of a valve cavity of the standing valve, and the inner diameter of the paraffin scraping block is identical with the diameter of the cross section of the hollow cavity in the lower end of the plug pin plate. Paraffin scraping blocks are arranged on an inner cavity of the standing valve, the outer wall of a lower travelling valve base fixing pipe and the inner wall of the pump cylinder, the aim of paraffin removal is completed when the oil well pump accomplishes oil pumping operation, process improvement is easy to achieve, and the phenomena of paraffin blocking and pump plugging caused by paraffin precipitation in the oil well pump are effectively reduced.
Description
Technical field
The utility model relates to fluid varactor machine field, relates in particular to a kind of wax control card oil well pump.
Background technique
In process of production, along with the reduction of temperature, pressure and separating out of gas, while reaching certain condition, the paraffin dissolving in crude oil will crystallization, separate out for oil well, and its crystalline solid is just assembled and is deposited in oil pump sleeve inwall and valve bonnet component internal.After the inner wax deposition of oil well pump, pump barrel oil discharge passage diameter is reduced, production fluid amount reduces.When serious, even make the seizure of plunger (wax card), or make pump valve block (pump is stifled), thereby oil well is stopped production.Existing wax control, dewaxing method have hot clean-up well method and add chemical agent method, and cost is higher, complex process.And only have strong magnetic paraffin control oil well pump about the technology of oil well pump wax control, but its wax control wax removal effect is limited.
Summary of the invention
The utility model aims to provide one can remove the inner wax deposition of oil pump, does not affect again the oil well pump of oil yielding rate.
A kind of wax control card oil well pump described in the utility model, comprise mutual socket and be the pump urceolus of hollow and pump in cylinder, in pump, tube inner chamber upper end is also socketed with the plunger of a hollow; Pump urceolus lower end is connected with the hollow screen casing with sieve aperture, has been socketed the bridge-type pipe nipple of a hollow in screen casing; Plunger upper end is connected with upper traveling valve cage, and lower end is connected with lower travelling valve cover; Bridge-type pipe nipple upper end is connected with fixed valve base; In pump, in tube inner chamber, be also provided with a pinboard, pinboard is between lower travelling valve and standing valve, and pinboard is provided with one, and up and down through the oily passage of mistake of pinboard, pinboard lower end is provided with hollow cavity, and the area of this hollow cavity cross section is more than or equal to the area of fixed valve ball cross section; In addition on the valve seat of standing valve, be also provided with a spring, be also provided with the wax stone of scraping of ring-type between spring and pinboard, the external diameter of scraping wax stone is identical with the internal diameter of standing valve valve pocket, and internal diameter is identical with the diameter of hollow cavity bottom, pinboard lower end cross section.
Preferably, lower travelling valve valve seat outer wall is provided with annular recess, is equipped with down and scrapes wax stone in groove.
Or preferably, in pump, the inwall of cylinder is provided with annular recess, is equipped with and scrapes wax stone in groove.
In design of the present invention, lower travelling valve rotates and promotes pinboard to promote again to scrape wax stone descending time descending, scrape wax stone and strike off the wax condensing on standing valve inwall when descending, while pinboard lower end hollow cavity and the loop design of scraping wax stone, can well prevent pinboard and scrape the extruding of wax stone to fixed valve ball, avoiding affecting the fuel-displaced of standing valve.
In a preferred embodiment, under installing in the valve seat fixed tube of lower travelling valve, scrape wax stone, following in plunger rotates up and down, remove the wax that plunger inwall condenses.
In another preferred embodiment, on cylinder upper end inwall is installed in pump, scraping wax stone, is when plunger rotates up and down, removes the wax condensing on plunger outer wall.
Accompanying drawing explanation
Fig. 1 be the utility model preferred implementation partly cut open figure.
In figure, 1-bridge pipe, 2-bridge-type pipe nipple, 3-screen casing, 4-box cupling, 5-fixed valve base, 6-fixed valve ball, 7-spring, 8-scrapes wax stone, 9-standing valve cover, 10-pinboard, cylinder in 11-pump, under 12-, scrape wax stone, 13-lower travelling valve seat fixed tube, 14-lower travelling valve seat, 15-lower travelling valve ball, 16-lower travelling valve cover, 17-plunger, 18-pump urceolus, scrapes wax stone on 19-, 20-upper travelling valve seat, 21-upper travelling valve ball, 22-upper traveling valve cage.
Embodiment
A kind of wax control card oil well pump described in the utility model, comprise mutual socket and be the pump urceolus 18 of hollow and pump in cylinder 11, in pump, cylinder 11 inner chamber upper ends are socketed with the plunger 17 of a hollow; Pump urceolus 18 lower ends are connected with the hollow screen casing 3 with sieve aperture, the interior bridge-type pipe nipple 2 that is socketed a hollow of screen casing 3; Plunger 17 upper ends are connected with upper traveling valve cage 22, and lower end is connected with lower travelling valve cover 16, and lower travelling valve valve seat fixed tube 13 is provided with annular recess, be provided with down and scrape wax stone 12 in groove; Bridge-type pipe nipple 2 upper ends are connected with fixed valve base 5; In pump, the inwall of cylinder 11 upper ends is provided with annular recess, in groove, be provided with and scrape wax stone 19, in pump, in cylinder 11 inner chambers, be also provided with a pinboard 10, pinboard 10 is between lower travelling valve and standing valve, and pinboard 10 is provided with one up and down through the oily passage of mistake of pinboard, fuel-displaced so that pinboard can not affect.Pinboard 10 lower ends are provided with hollow cavity, and the area of this hollow cavity cross section is more than or equal to the area of fixed valve ball cross section, therefore, in the time that pinboard slides into lowermost end and contacts with fixed valve ball, can not produce extruding to fixed valve ball; In addition on fixed valve base, be also provided with a spring 7, what between spring 7 and pinboard 10, be also provided with ring-type scrapes wax stone 8, and the external diameter of scraping wax stone 8 is identical with the internal diameter of standing valve valve pocket, and internal diameter is identical with the diameter of pinboard 10 hollow cavity bottom, lower end cross sections.
As shown in Figure 1, in oil well, crude oil enters bridge-type pipe nipple 2 inner chambers by the sieve aperture on screen casing 3, in the time that sucker rod drives plunger 17 up by upper traveling valve cage 22, fixed valve ball 6 moves up and opens, crude oil enters lower travelling valve seat fixed tube 13 enclosed space below, and now lower travelling valve ball 15 and upper travelling valve ball 21 are closed.In the time that plunger 17 is descending, fixed valve ball 6 is closed, lower travelling valve ball 15 and upper travelling valve ball 21 are opened, under scrape wax stone 12 can clean-up pump in the wax deposition of cylinder 11 inwalls, on the wax deposition of scraping wax stone 19 and can wipe plunger 17 outer walls off, heavier paraffin can be deposited to bottom by the annular space of cylinder 11 and pump urceolus 18 in pump, and lighter paraffin is discharged ground with fluid, thereby prevents that wax card phenomenon from occurring.In the time that plunger 17 drives lower travelling valve seat fixed tube 13 to approach bottom, encounter pinboard 10, pinboard 10 promotes again to scrape wax stone 8, disposes the wax deposition in standing valve cover 9, prevents that the stifled phenomenon of pump from occurring.
Claims (3)
1. a wax control card oil well pump, comprise mutual socket and be the pump urceolus (18) of hollow and pump in cylinder (11), in pump, cylinder (11) inner chamber upper end is also socketed with the plunger (17) of a hollow; Pump urceolus (18) lower end is connected with the hollow screen casing (3) with sieve aperture, has been socketed the bridge-type pipe nipple (2) of a hollow in screen casing (3); Plunger (17) upper end is connected with upper traveling valve cage (22), and lower end is connected with lower travelling valve cover (16); Bridge-type pipe nipple (2) upper end is connected with fixed valve base (5); It is characterized in that in cylinder (11) inner chamber, being also provided with a pinboard (10) in pump, pinboard (10) is between lower travelling valve and standing valve, and pinboard (10) is provided with an oily passage of mistake that passes up and down pinboard, pinboard (10) lower end is provided with hollow cavity, and the area of this hollow cavity cross section is more than or equal to the area of fixed valve ball (6) cross section; In addition on the valve seat of standing valve (5), be also provided with a spring (7), what between spring (7) and pinboard (10), be also provided with ring-type scrapes wax stone (8), the external diameter of scraping wax stone (8) is identical with the internal diameter of standing valve valve pocket, and internal diameter is identical with the diameter of pinboard (10) lower end hollow cavity cross section.
2. a kind of wax control card oil well pump as claimed in claim 1, is characterized in that lower travelling valve valve seat (14) outer wall is provided with annular recess, is equipped with down in groove and scrapes wax stone (12).
3. a kind of wax control card oil well pump as claimed in claim 1 or 2, is characterized in that the inwall of cylinder (11) in pump is provided with annular recess, is equipped with and scrapes wax stone (19) in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064385.3U CN203702514U (en) | 2014-02-13 | 2014-02-13 | Paraffin blocking prevention oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064385.3U CN203702514U (en) | 2014-02-13 | 2014-02-13 | Paraffin blocking prevention oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702514U true CN203702514U (en) | 2014-07-09 |
Family
ID=51052965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420064385.3U Expired - Fee Related CN203702514U (en) | 2014-02-13 | 2014-02-13 | Paraffin blocking prevention oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702514U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071377A (en) * | 2016-11-18 | 2018-05-25 | 中国石油化工股份有限公司 | The long-acting injection well downhole flow regulator of the small flow of bridge type mechanism |
| CN111535779A (en) * | 2020-04-23 | 2020-08-14 | 河南福侨石油装备有限公司 | Traveling valve and forced-closing anti-blocking oil well pump |
-
2014
- 2014-02-13 CN CN201420064385.3U patent/CN203702514U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071377A (en) * | 2016-11-18 | 2018-05-25 | 中国石油化工股份有限公司 | The long-acting injection well downhole flow regulator of the small flow of bridge type mechanism |
| CN108071377B (en) * | 2016-11-18 | 2024-03-01 | 中国石油化工股份有限公司 | Bridge-type mechanism small-flow long-acting water distributor |
| CN111535779A (en) * | 2020-04-23 | 2020-08-14 | 河南福侨石油装备有限公司 | Traveling valve and forced-closing anti-blocking oil well pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20210213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |