CN202811300U - Whole cylinder oil well pump achieving forward-direction well flushing - Google Patents
Whole cylinder oil well pump achieving forward-direction well flushing Download PDFInfo
- Publication number
- CN202811300U CN202811300U CN 201220553632 CN201220553632U CN202811300U CN 202811300 U CN202811300 U CN 202811300U CN 201220553632 CN201220553632 CN 201220553632 CN 201220553632 U CN201220553632 U CN 201220553632U CN 202811300 U CN202811300 U CN 202811300U
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- pump
- well
- assembly
- setting
- pump barrel
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Abstract
The utility model discloses a whole cylinder oil well pump achieving forward-direction well flushing, and resolves the problems of heat losing of well flushing liquid during a well flushing process of a rod pumped well. On the basis of an original oil well pump structure, a seat seal connection body and a sand prevention outer pipe are arranged outside a pump cylinder of the oil well pump structure, sand storage annular gaps are formed among the seat seal connection body, the sand prevention outer pipe and the pump cylinder, the seat seal connection body is further provided with a forward-direction well flushing hole connected with the inner cavity of the pump cylinder, the forward-direction well flushing hole is communicated with the inside of the pump, and a seat seal groove is arranged. A seat seal plunger assembly seat is sealed on the seat seal connection body, when the oil well pump works normally, a well flushing channel is closed, during well flushing, a plunger assembly in the pump is lifted through an oil pump rod, the well flushing channel is opened, and the purpose of forward-direction well flushing is achieved. After forward-direction well flushing by the oil well pump, a large amount of well flushing water can be saved, pollution to oil layers can be reduced, liquid discharging time is shortened, and production cost is saved.
Description
Technical field
The utility model relates to the used extracting device of oil in oil extraction in oil field field, and concrete is a kind of oil well pump of new structure.
Background technique
At present all adopt reverse well-flushing at the oil well pump of usefulness during at well-flushing, flushing fluid at first enters sleeve pipe, has the heat loss of most, when especially washing for stripper well heat, meeting produces formation contaminant and flushing fluid pours in down a chimney the stratum phenomenon, and affects the well-flushing quality, has prolonged drain time; And positive well-flushing only needs a small amount of water just can the impurity such as the wax in tube inner wall, sucker rod and the oil well pump, sand scale to be rinsed well, has both saved a large amount of well-flushing waters, reduces again oil layer pollution, has shortened drain time, saves production cost.
Summary of the invention
The purpose of this utility model provides a kind of just oil well pump of well-flushing, solve the problem of flushing fluid heat loss in the pumping well washing well process, thereby prevented that formation contaminant and flushing fluid from pouring in down a chimney the stratum, improved quality of heat washing, reduce drain time, save production cost.
For achieving the above object, the technological scheme that the application adopts is: but forward well-flushing integeral tube pumping pump, comprise pump barrel assembly and setting plunger piston assembly, wherein the pump barrel assembly comprises bottom connecting assembly, sand control outer tube, fixed valve base assembly, pump barrel connecting cylinder, pump barrel and setting connecting body; The lower thread of described setting connecting body outer wall connects the sand control outer tube, the bottom thread of sand control outer tube connects the bottom connecting assembly, the bottom nozzle of the bottom connecting assembly screen casing cap that is threaded, in addition, setting connecting body interior lower end mouth sealing grafting pump barrel, the pump barrel lower thread connects the pump barrel connecting cylinder, and the bottom of pump barrel connecting cylinder arranges the standing valve assembly, between sand control outer tube and pump barrel, form and deposit the sand annular space, be provided with the positive well washing hole that links to each other with the pump barrel inner chamber at setting connecting body; Described setting plunger piston assembly, comprise connection coupling, lock-on connection, locking mandrel, partition A, seal ring, partition B, partition C, pressure cap, lower connecting rod, the standby cap of compression and plunger piston assembly, wherein lock-on connection, locking mandrel, partition A, seal ring, partition B, partition C and pressure cap form the setting assembly of locking, and it is setting on setting connecting body to lock setting assembly.
Beneficial effect: but forward well-flushing integeral tube pumping pump replaces common oil well pump, and its topmost advantage is all to take out plunger piston assembly again, just can utilize the well-flushing passage to carry out positive well-flushing.In addition, this oil well pump simple in structure, it is effective to recover the oil, and long service life has reduced environmental pollution.
Description of drawings
Fig. 1 is the structural representation of pump barrel assembly.
Fig. 2 is the structural representation of setting plunger piston assembly.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
By Fig. 1 in conjunction with shown in Figure 2: but forward well-flushing integeral tube pumping pump, comprise pump barrel assembly I and setting plunger piston assembly II, wherein pump barrel assembly I comprises bottom connecting assembly 2, sand control outer tube 3, fixed valve base assembly 4, pump barrel connecting cylinder 5, pump barrel 6 and setting connecting body 8; The lower thread of described setting connecting body 8 outer walls connects sand control outer tube 3, the bottom thread of sand control outer tube 3 connects bottom connecting assembly 2, the bottom nozzle of the bottom connecting assembly 2 screen casing cap 1 that is threaded, in addition, setting connecting body 8 interior lower end mouths sealing grafting pump barrel 6, pump barrel 6 lower thread connect pump barrel connecting cylinder 5, the bottom of pump barrel connecting cylinder 5 arranges standing valve assembly 4, between sand control outer tube 3 and pump barrel 6, form and deposit sand annular space 7, be provided with the positive well washing hole 81 that links to each other with pump barrel 6 inner chambers at setting connecting body 8; Described setting plunger piston assembly II, comprise connection coupling 9.1, lock-on connection 9.2, locking mandrel 9.3, partition A 9.4, seal ring 9.5, partition B 9.6, partition C 9.7, pressure cap 9.8, lower connecting rod 9.9, compress standby cap 9.10 and plunger piston assembly 9.11, wherein lock-on connection 9.2, locking mandrel 9.3, partition A 9.4, seal ring 9.5, partition B 9.6, partition C 9.7 and pressure cap 9.8 form the setting assembly of locking, and it is setting on setting connecting body 8 to lock setting assembly.
But the application's forward well-flushing integeral tube pumping pump is on the basis of original oil well pump, in its pump barrel 6 outsides setting connecting body 8 and sand control outer tube 3 is housed, and forms between setting connecting body 8 and sand control outer tube 3 and the pump barrel 6 and deposits sand annular space 7.Be provided with the positive well washing hole 81 that links to each other with pump barrel 6 inner chambers at setting connecting body 8, when well-flushing, communicate with pump barrel 6 inside, and be provided with setting groove.During work
,Setting plunger piston assembly 9 is setting on setting connecting body 8, positive well washing hole 81 on the setting connecting body 8 is closed with the passage that pump barrel 6 is communicated with, this oil well pump is the same with original oil well pump, oil enters by bottom connecting assembly 2 bottoms, then enter in the pump barrel 6 by standing valve assembly 4, drawing up by plunger piston assembly 9.11 again.
When needing well-flushing, with plunger piston assembly 9.11 in the pump barrel 6 by carrying on the sucker rod, make to compress for cap 9.10 and contact with the setting assembly of locking bottom, carry again, lock-on connection 9.2 and setting connecting body 8 are broken away from, and make the setting assembly of locking deviate from the interior Seal cage of pump barrel, and the well-flushing passage is opened like this, and flushing fluid enters well-flushing in the pump by the positive well washing hole 81 on the setting connecting body 8.Upper connection coupling 9.1 presses down locking mandrel 9.3 again and makes seal ring 9.5 again setting in the Seal cage of setting connecting body 8 behind the well-flushing, and the jaw of lock-on connection 9.2 is locked in the setting groove of setting connecting body 8, makes it setting.Oil well pump works again like this.
Claims (1)
1. but a forward well-flushing integeral tube pumping pump comprises pump barrel assembly and setting plunger piston assembly, and wherein the pump barrel assembly comprises bottom connecting assembly, sand control outer tube, fixed valve base assembly, pump barrel connecting cylinder, pump barrel and setting connecting body; It is characterized in that: the lower thread of described setting connecting body outer wall connects the sand control outer tube, the bottom thread of sand control outer tube connects the bottom connecting assembly, the bottom nozzle of the bottom connecting assembly screen casing cap that is threaded, in addition, setting connecting body interior lower end mouth sealing grafting pump barrel, the pump barrel lower thread connects the pump barrel connecting cylinder, and the bottom of pump barrel connecting cylinder arranges the standing valve assembly, between sand control outer tube and pump barrel, form and deposit the sand annular space, be provided with the positive well washing hole that links to each other with the pump barrel inner chamber at setting connecting body; Described setting plunger piston assembly, comprise connection coupling, lock-on connection, locking mandrel, partition A, seal ring, partition B, partition C, pressure cap, lower connecting rod, the standby cap of compression and plunger piston assembly, wherein lock-on connection, locking mandrel, partition A, seal ring, partition B, partition C and pressure cap form the setting assembly of locking, and it is setting on setting connecting body to lock setting assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220553632 CN202811300U (en) | 2012-10-26 | 2012-10-26 | Whole cylinder oil well pump achieving forward-direction well flushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220553632 CN202811300U (en) | 2012-10-26 | 2012-10-26 | Whole cylinder oil well pump achieving forward-direction well flushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811300U true CN202811300U (en) | 2013-03-20 |
Family
ID=47870184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220553632 Expired - Fee Related CN202811300U (en) | 2012-10-26 | 2012-10-26 | Whole cylinder oil well pump achieving forward-direction well flushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811300U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952628B (en) * | 2018-06-11 | 2020-09-08 | 中国石油天然气股份有限公司 | Oil pumping pipe flusher, flushable oil pumping pipe column and well flushing method |
-
2012
- 2012-10-26 CN CN 201220553632 patent/CN202811300U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952628B (en) * | 2018-06-11 | 2020-09-08 | 中国石油天然气股份有限公司 | Oil pumping pipe flusher, flushable oil pumping pipe column and well flushing method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20191026 |