CN2616712Y - Efficient air-trapping oil-well pump - Google Patents
Efficient air-trapping oil-well pump Download PDFInfo
- Publication number
- CN2616712Y CN2616712Y CN 03242864 CN03242864U CN2616712Y CN 2616712 Y CN2616712 Y CN 2616712Y CN 03242864 CN03242864 CN 03242864 CN 03242864 U CN03242864 U CN 03242864U CN 2616712 Y CN2616712 Y CN 2616712Y
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- CN
- China
- Prior art keywords
- pump
- pump barrel
- plunger
- model
- utility
- 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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- Reciprocating Pumps (AREA)
Abstract
The utility model relates to an efficient anti-gas oil pump, mainly aiming at solving the problem of air lock and low efficiency of the oil production caused by the prior tubing pump. The utility model is characterized in that an intermediate pump barrel (3) of the rugby shape cushion chamber (6) is fixed between the upper pump barrel (1) and the lower pump barrel (4) which are studded using a plurality of bushes (5) on the inner wall of, and the two ends are positioned at the plungers (2) in the bushes (5) and pass through the cushion chamber. The utility model has the advantages of avoiding air lock and having high efficiency of the oil production.
Description
Technical field:
The utility model relates to used oil well pump in the oil recovery field, oil field, especially efficient gas-tight oil well pump.
Background technique:
In oil recovery field, oil field, usually adopt the pumping unit rod pump to recover the oil, particularly tubing pump is when the aboveground use of high gas-oil ratio (HGOR), owing to contain gas in the mixed flow body of extraction, reduced the volumetric efficiency and the working life of tubing pump, high gas-oil ratio (HGOR) makes the mixed flow body degree of filling in the plunger in the oil well pump low, has reduced oil recovery efficiency, cause the outlet valve gas lock when serious, influence ordinary production.
The model utility content:
Easily cause gas lock and the low deficiency of oil recovery efficiency in order to overcome existing tubing pump, the utility model provides a kind of efficient gas-tight oil well pump, and this pump has and is difficult for causing gas lock and the high characteristics of oil recovery efficiency.
The technical solution of the utility model is: the efficient gas-tight oil well pump of this kind comprises up and down pump barrel, and plunger, the middle pump barrel of band rugby shape buffer cavity in the middle of being fixed with between the pump barrel up and down, the inwall of pump barrel is inlayed some linings respectively up and down, and two ends place the plunger in the lining to pass buffer cavity respectively.
The lining that the above-mentioned inwall of pump barrel is up and down inlayed respectively is 4.
The utlity model has following beneficial effect: owing to take the middle band of the middle pump barrel rugby shape buffer cavity of such scheme, its inner chamber lower end communicated with buffer cavity when plunger was up, gas in the mixed flow body escapes in the buffer cavity, mixed flow body degree of filling in the plunger cavity raises, and has improved oil recovery efficiency; Its inner chamber upper end communicated with buffer cavity when plunger was descending, the interior gas of buffer cavity by plunger cavity enter oil pipe with the mixed flow body by extraction, can not cause gas lock.
Description of drawings:
Accompanying drawing 1 is a structure sectional view of the present utility model.
1-goes up pump barrel among the figure, pump barrel in the middle of the 2-plunger, 3-, pump barrel under the 4-, 5-lining, 6-buffer cavity.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, this efficient gas prevention pump comprises pump barrel (1 up and down, 4) and plunger 2, at pump barrel (1 up and down, 4) the middle pump barrel 3 of band rugby shape buffer cavity 6 in the middle of being fixed with between, its inner chamber lower end communicated with buffer cavity when plunger 2 was up, and the gas in the mixed flow body escapes in the buffer cavity 6, mixed flow body degree of filling in plunger 2 inner chambers raises, and has improved oil recovery efficiency; Its inner chamber upper end communicated with buffer cavity 6 when plunger 2 was descending, the interior gas of buffer cavity 6 by plunger 2 inner chambers enter oil pipe with the mixed flow body by extraction, can not cause gas lock; The inwall of pump barrel (1,4) is inlayed 4 linings 5 respectively up and down, and plunger 2 can be slided in lining 5, play the guiding role simultaneously; Two ends place the plunger 2 in the lining 5 to pass buffer cavity 6 respectively, and its inner chamber can communicate with buffer cavity 6 when plunger 2 was moved up and down; The quantity of lining 5 can increase or reduce according to actual needs.
Claims (2)
1, a kind of efficient gas-tight oil well pump, comprise pump barrel (1 up and down, 4) and plunger (2), it is characterized in that: at pump barrel (1 up and down, 4) the middle pump barrel (3) of band rugby shape buffer cavity (6) in the middle of being fixed with between, the inwall of pump barrel (1,4) is inlayed some linings (5) respectively up and down, and two ends place the plunger (2) in the lining (5) to pass buffer cavity (6) respectively.
2, efficient gas-tight oil well pump according to claim 1 is characterized in that: the lining (5) inlayed of pump barrel (1,4) inwall respectively is 4 up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03242864 CN2616712Y (en) | 2003-04-02 | 2003-04-02 | Efficient air-trapping oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03242864 CN2616712Y (en) | 2003-04-02 | 2003-04-02 | Efficient air-trapping oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2616712Y true CN2616712Y (en) | 2004-05-19 |
Family
ID=34250714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03242864 Expired - Fee Related CN2616712Y (en) | 2003-04-02 | 2003-04-02 | Efficient air-trapping oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2616712Y (en) |
-
2003
- 2003-04-02 CN CN 03242864 patent/CN2616712Y/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 | ||
| 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 |