CN2564741Y - Booster for oil pump - Google Patents
Booster for oil pump Download PDFInfo
- Publication number
- CN2564741Y CN2564741Y CN 02246062 CN02246062U CN2564741Y CN 2564741 Y CN2564741 Y CN 2564741Y CN 02246062 CN02246062 CN 02246062 CN 02246062 U CN02246062 U CN 02246062U CN 2564741 Y CN2564741 Y CN 2564741Y
- Authority
- CN
- China
- Prior art keywords
- central passage
- passage pipe
- piston
- oil
- oil well
- 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 device for promoting efficiency of an oil pump, which belongs to the mechanical field of the oil production in an oil field. The device is composed of an upper connector, a lower connector, a sleeve tube, a piston, a valve, etc. The utility model is characterized in that the device is provided with one central passing tube with unequal outer diameters, one annular piston with unequal inner diameters and two fixing valves, wherein the annular piston with unequal inner diameters is sheathed outside the central passing tube; the fixing valves are connected in series with the lower part of the central passing tube; the upper end of the central passing tube is fixed on the upper connector and is communicated with an oil pomp cylinder. The upper ends of the two fixing valves are connected with the central passing tube, and the lower ends are fixed on the lower connector and are communicated with a sieve tube. When the device is used, the device is integrally connected in series between the oil pump and the sieve tube. Because the utility model omits a spring with easy fatigue damage, the failure rate is reduced, and the service life is remarkably prolonged.
Description
Technical field
The utility model relates to a kind of oil well pump enhancing device, belongs to oil recovery machiner field, oil field.
Technical background
In the bar oil production technology is arranged, overflow owing to enter the low solution gas that causes of the former oil pressure of oil well pump, had a strong impact on the coefficient of fullness of pump, make the efficient of pump very low.For addressing this problem, the patent No. is that 91227181.7 " oil well pump hydraulic pressure device for filling oil " provides a kind of and can be converted to power to the pump barrel topping up to the hydraulic pressure in the oil pipe with small loss of plunger stroke, to reduce the effusion of advancing solution gas in the pump crude oil, improve the technical scheme of pump efficiency.The patent No. is that 00233760.6 " hydraulic pressure oil feed pump " carried out partly improving to technique scheme.But exist a common shortcoming in above two kinds of technical schemes, that is: fluid column pressure energy in the oil pipe is converted in the process of pump barrel internal-filling liquid power all to compress spring as the accumulation of energy mode.Because the spring fatigue damage ratio is higher, had a strong impact on the application life of this device.
Summary of the invention
The purpose of this utility model is to remove energy-storaging spring of the prior art, with improving piston gravitional force as the accumulation of energy mode, to reduce fault rate, improves application life.
The purpose of this utility model is achieved through the following technical solutions: a kind of oil well pump enhancing device is made up of top connection, lower contact, sleeve, piston, valve, and integral body is serially connected between oil well pump and the screen casing during use.Its special character is to have one and does not wait the annular piston of the central passage pipe of external diameter, a not uniform internal diameter that is sleeved on the central passage tube outside, two standing valves that are serially connected in central passage pipe bottom.
Described central passage pipe is characterized in that the top external diameter less than lower outer diameter, has Side to through hole at the intersection of two different external diameters; The upper end of central passage pipe is fixed in top connection and is communicated with the oil pumping pump barrel.
Described annular piston is characterized in that the top internal diameter is less than the bottom internal diameter, can also can adopt the mode that adds sealing ring or joint ring to form the part and be slidingly matched for integral body is slidingly matched between its two sections different internal diameters and the central passage pipe, between external diameter and the sleeve.
Described two serial connection standing valves is characterized in that two standing valves are fixed in the same valve cover, its upper end joins with the central passage pipe, the lower end is fixed in the lower contact and with screen casing and communicates, and has the side direction through hole on the passage in the middle of two valves and communicates with the annular space at piston place.
The utility model compared with prior art its advantage is: owing to removed the spring of fatiguability damage, therefore significantly reduced fault rate, significantly improve application life.
Description of drawings
Accompanying drawing is the utility model vertical section structure schematic diagram.
The specific embodiment
Below in conjunction with specific embodiment, be described further with regard to design feature of the present utility model.
A kind of oil well pump enhancing device, accompanying drawing are the schematic diagrames of a kind of specific embodiment of the present utility model, and its architectural feature is: top connection 1, lower contact 11, sleeve 4 constitute housing of the present utility model.Top connection 1 is joined with the oil pumping pump barrel during use, and lower contact 11 is joined with screen casing.Resistance when the top of sleeve 4 has side direction through hole 3 with 6 motions of elimination annular piston.Central passage pipe 2 is the pipe that upper and lower two parts external diameter does not wait, and the top external diameter is less than lower outer diameter, has side direction through hole 5 at the intersection of two different external diameters.Central passage pipe upper end is fixed in the top connection 1 and with the oil pumping pump barrel and communicates, and lower end and valve cover 8 join.Annular piston 6 is the solid annular body of not uniform internal diameter, between its two sections different internal diameters and the central passage pipe 2, can be slidingly matched for integral body between external diameter and the sleeve 4, also can adopt the mode that adds sealing ring or joint ring to form the part and be slidingly matched, present embodiment is that integral body is slidingly matched.Standing valve 7 and standing valve 10 are contained in the same valve cover 8, the upper end and the central passage pipe 2 of valve cover 8 join, the lower end is fixed in the lower contact 11 and with screen casing and communicates, and the access site between two valves has side direction through hole 9 and communicates with the bottom annular space at annular piston 6 places.
The course of work of the present utility model is as follows: when oil well pump is in down stroke, the side direction through hole 5 of highly pressurised liquid through central passage pipe 2 and middle part in the pump barrel enters the annular space between annular piston 6 and the central passage pipe 2, the promotion annular piston is up, till spacing by top connection 1.Meanwhile standing valve 10 is opened, and well liquid is inhaled into the lower annular space at piston place by standing valve 10 and side direction through hole 9; When oil well pump became upstroke, the pressure in the pump barrel reduced, and under the promotion of annular piston gravity, the well liquid in the annular space is pressed into pump barrel through side direction through hole 9, standing valve 7 and central passage pipe 2.
Claims (4)
1, a kind of oil well pump enhancing device is made up of top connection, lower contact, sleeve, piston, valve, and its special character is to have one and does not wait the annular piston of the central passage pipe of external diameter, a not uniform internal diameter that is sleeved on the central passage tube outside, two standing valves that are serially connected in central passage pipe bottom.
2, a kind of oil well pump enhancing device as claimed in claim 1 is characterized by: the top external diameter of central passage pipe is less than lower outer diameter, has Side to through hole at the intersection of two different external diameters.
3, a kind of oil well pump enhancing device as claimed in claim 1, it is characterized by: the top internal diameter of annular piston is less than the bottom internal diameter, between its two sections different internal diameters and the central passage pipe, can adopt integral body to be slidingly matched between external diameter and the sleeve, also can adopt the mode that adds sealing ring or joint ring to form the part and be slidingly matched.
4, a kind of oil well pump enhancing device as claimed in claim 1, it is characterized by: two standing valves of serial connection are fixed in the same valve cover, its upper end joins with the central passage pipe, the lower end is fixed in the lower contact and with screen casing and communicates, and has the side direction through hole on the passage in the middle of two valves and communicates with the annular space at piston place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02246062 CN2564741Y (en) | 2002-08-21 | 2002-08-21 | Booster for oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02246062 CN2564741Y (en) | 2002-08-21 | 2002-08-21 | Booster for oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2564741Y true CN2564741Y (en) | 2003-08-06 |
Family
ID=33717469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02246062 Expired - Fee Related CN2564741Y (en) | 2002-08-21 | 2002-08-21 | Booster for oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2564741Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161433A (en) * | 2013-03-26 | 2013-06-19 | 中国石油大学(华东) | Oil-well pump energy-storage enhancing device capable of compressing natural gas automatically |
-
2002
- 2002-08-21 CN CN 02246062 patent/CN2564741Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161433A (en) * | 2013-03-26 | 2013-06-19 | 中国石油大学(华东) | Oil-well pump energy-storage enhancing device capable of compressing natural gas automatically |
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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 |