CN201874787U - Sand-prevention oil well pump without standing valve - Google Patents
Sand-prevention oil well pump without standing valve Download PDFInfo
- Publication number
- CN201874787U CN201874787U CN2010206237107U CN201020623710U CN201874787U CN 201874787 U CN201874787 U CN 201874787U CN 2010206237107 U CN2010206237107 U CN 2010206237107U CN 201020623710 U CN201020623710 U CN 201020623710U CN 201874787 U CN201874787 U CN 201874787U
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- pump
- sand control
- control assembly
- plunger
- sand
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Abstract
The utility model relates to a full-bobbin type sand-prevention oil well pump without a standing valve, which is applied in underground oil extraction in an oil field. An upper pump cylinder is connected at the upper end of a lower pump cylinder, an upper plunger is arranged in the upper pump cylinder, the outer diameter of the upper plunger is equal to the inner diameter of the upper pump cylinder, the upper end of the upper pump cylinder is connected with an upper traveling valve assembly and an upper sand-prevention assembly, the lower end of the upper plunger is connected with a connecting rod, the lower end of the connecting rod is connected with a middle sand-prevention assembly and a lower traveling valve assembly, the lower end of the lower traveling valve assembly is connected with a lower plunger and a lower sand-prevention assembly, the lower plunger is arranged in the lower pump cylinder, and the outer diameter of the lower plunger is equal to the inner diameter of the lower pump cylinder. The full-bobbin type sand-prevention oil well pump has the effects that the oil well pump is formed by the combination of an upper set of pump and a lower set of pump which are connected with each other in series, and not provided with the standing valve, an oil pipe does need to be pulled out in pump inspection, and the oil well pump is convenient in operation, low in well repairing cost, and suitable for being used in sand containing wells, gas containing wells and heavy oil wells.
Description
Technical field
The utility model relates to the mechanical oil recovery technical field of underground, and particularly a kind of sucker-rod pumping is a kind ofly to combine the oil well pump of no standing valve by two two kinds of different series connections of pumps of specification up and down.
Background technique
Sucker-rod pumping is a current domestic and international application mechanical oil recovery technology the most widely, and rod pumping pump is a critical component of carrying out lifting well liquid, and its performance has directly determined oil recovery efficiency.At present, the mechanical producing well number has surpassed more than 90% of total producing well number in the world, and 80%～85% mechanical producing well all adopts the rod pumping pump oil pumping.Nearly 80% oil well is to use the sucker rod pumping technology in the producing well in each oil field of China.Conventional rod pumping pump mainly contains three classes: tubing pump, sucker rod pump, casing pump.
Summary of the invention
The purpose of this utility model is: a kind of no standing valve sand-proof oil-well pump is provided, and the inspection pump needn't play oil outlet tube, and operation is convenient, and workover cost is low, is adapted at containing sand drain, contains gas well, uses in the thick oil well.
The technical solution adopted in the utility model is: no standing valve sand-proof oil-well pump, mainly form by last pump barrel, top sand control assembly, upper travelling valve assembly, upper plug, connecting rod, middle part sand control assembly, lower travelling valve assembly, following pump barrel, lower plunger and bottom sand control assembly.Last pump barrel is connected down the upper end of pump barrel; A upper plug is arranged in last pump barrel, and upper prop is plugged with center hole, and the upper plug external diameter is identical with last pump barrel internal diameter; Be connected with the upper travelling valve assembly in the upper end of upper plug; Be connected with top sand control assembly in the upper end of upper travelling valve assembly; The upper end of top sand control assembly can connect sucker rod.Sucker rod pumps, and can drive top sand control assembly, upper travelling valve assembly and upper plug and pump in last pump barrel.There is linked hole lower end at upper plug, and the upper plug lower end is connected with a connecting rod; The lower end of connecting rod is connected with middle part sand control assembly, and the lower end of middle part sand control assembly is connected with the lower travelling valve assembly; Lower end at the lower travelling valve assembly is connected with lower plunger, and lower plunger is in following pump barrel, and lower prop is plugged with center hole, and the lower plunger external diameter is identical with following pump barrel internal diameter; Be connected with bottom sand control assembly in the lower end of lower plunger, bottom sand control assembly is in following pump barrel.Under the drive of connecting rod, middle part sand control assembly and lower travelling valve assembly, lower plunger and bottom sand control assembly are pumping in the pump barrel down.
The center line of top sand control assembly, upper travelling valve assembly, upper plug, connecting rod, middle part sand control assembly, lower travelling valve assembly, lower plunger and bottom sand control assembly is same straight line.
The beneficial effects of the utility model: the utility model does not have the standing valve sand-proof oil-well pump, form by two different plunger pump tandem compounds of specification up and down, no standing valve structure, the inspection pump needn't play oil outlet tube, operation is convenient, workover cost is low, is adapted at containing sand drain, contains gas well, uses in the thick oil well, compares with traditional tubing pump to have following characteristics:
1, fixed tubular column only needs to carry sucker rod the plunger string is proposed well head, just can overhaul lower plunger, repeats to annotate vapour and carries out thermal recovery, sand washing and well cleanout and reverse cleanout.
2, the sand control assembly has been installed respectively on last lower plunger, in the running, can have effectively been played the effect of strike-ofing about the plunger string.
3, the plunger string up and down in the running, can obviously form the high low pressure chamber, and traveling valve is opened in time, effectively overcomes the gas lock phenomenon, plays and prevents the gas lock effect.
4, during workover eration, have oil draining function, can reduce pollution the well site.
Description of drawings
Fig. 1 is that the utility model does not have standing valve sand-proof oil-well pump structural profile schematic representation.
Among the figure, 1. sucker rod is 2. gone up pump barrel, 3. top sand control assembly, and 4. upper travelling valve assembly, 5. upper plug, 6. connecting rod, 7. middle part sand control assembly, 8. the lower travelling valve assembly 9. descends pump barrel, 10. lower plunger, 11. bottom sand control assemblies.
Embodiment
Embodiment 1: with a no standing valve sand-proof oil-well pump is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model does not have the standing valve sand-proof oil-well pump, no standing valve sand-proof oil-well pump mainly is made up of last pump barrel 2, top sand control assembly 3, upper travelling valve assembly 4, upper plug 5, connecting rod 6, middle part sand control assembly 7, lower travelling valve assembly 8, following pump barrel 9, lower plunger 10 and bottom sand control assembly 11.Last pump barrel 2 is threaded in down the upper end of pump barrel 9; A upper plug 5 is arranged in last pump barrel 2, and upper plug 5 has center hole, and upper plug 5 external diameters are identical with last pump barrel 2 internal diameters; Be connected with upper travelling valve assembly 4 in the upper end of upper plug 5; Be connected with top sand control assembly 3 in the upper end of upper travelling valve assembly 4.The lower end of sucker rod 1 is connected in the top sand control assembly 3 upper end center holes.
In the lower end of upper plug 5 oblique linked hole is arranged, and upper plug 5 lower end center screws are connected with a connecting rod 6; The lower end of connecting rod 6 is connected with middle part sand control assembly 7, and the lower end of middle part sand control assembly 7 is connected with lower travelling valve assembly 8; Be connected with lower plunger 10 in the lower end of lower travelling valve assembly 8, lower plunger 10 is in following pump barrel 9, and lower plunger 10 has center hole, and lower plunger 10 external diameters are identical with following pump barrel 9 internal diameters; Be connected with bottom sand control assembly 11 in the lower end of lower plunger 10, bottom sand control assembly 11 is in following pump barrel 9.
The center line of top sand control assembly 3, upper travelling valve assembly 4, upper plug 5, connecting rod 6, middle part sand control assembly 7, lower travelling valve assembly 8, lower plunger 10 and bottom sand control assembly 11 is same straight line.
Embodiment 2: embodiment 2 is substantially the same manner as Example 1, and difference is: go up that the employing tubing coupling is connected between pump barrel 2 and the following pump barrel 9.
Claims (2)
1. a no standing valve sand-proof oil-well pump mainly is made up of last pump barrel (2), top sand control assembly (3), upper travelling valve assembly (4), upper plug (5), connecting rod (6), middle part sand control assembly (7), lower travelling valve assembly (8), following pump barrel (9), lower plunger (10) and bottom sand control assembly (11); It is characterized in that: go up the upper end that pump barrel (2) is connected down pump barrel (9); A upper plug (5) is arranged in last pump barrel (2), and upper plug (5) has center hole, and upper plug (5) external diameter is identical with last pump barrel (2) internal diameter; Be connected with upper travelling valve assembly (4) in the upper end of upper plug (5); Be connected with top sand control assembly (3) in the upper end of upper travelling valve assembly (4); There is linked hole lower end at upper plug (5), and upper plug (5) lower end is connected with a connecting rod (6); The lower end of connecting rod (6) is connected with middle part sand control assembly (7), and the lower end of middle part sand control assembly (7) is connected with lower travelling valve assembly (8); Be connected with lower plunger (10) in the lower end of lower travelling valve assembly (8), lower plunger (10) is in following pump barrel (9), and lower plunger (10) has center hole, and lower plunger (10) external diameter is identical with following pump barrel (9) internal diameter; Be connected with bottom sand control assembly (11) in the lower end of lower plunger (10), bottom sand control assembly (11) is in following pump barrel (9).
2. no standing valve sand-proof oil-well pump according to claim 1 is characterized in that: the center line of top sand control assembly (3), upper travelling valve assembly (4), upper plug (5), connecting rod (6), middle part sand control assembly (7), lower travelling valve assembly (8), lower plunger (10) and bottom sand control assembly (11) is a same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206237107U CN201874787U (en) | 2010-11-23 | 2010-11-23 | Sand-prevention oil well pump without standing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206237107U CN201874787U (en) | 2010-11-23 | 2010-11-23 | Sand-prevention oil well pump without standing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874787U true CN201874787U (en) | 2011-06-22 |
Family
ID=44162705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206237107U Expired - Lifetime CN201874787U (en) | 2010-11-23 | 2010-11-23 | Sand-prevention oil well pump without standing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874787U (en) |
-
2010
- 2010-11-23 CN CN2010206237107U patent/CN201874787U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |