CN203035537U - Equal-stroke scale prevention oil well pump - Google Patents
Equal-stroke scale prevention oil well pump Download PDFInfo
- Publication number
- CN203035537U CN203035537U CN 201220636675 CN201220636675U CN203035537U CN 203035537 U CN203035537 U CN 203035537U CN 201220636675 CN201220636675 CN 201220636675 CN 201220636675 U CN201220636675 U CN 201220636675U CN 203035537 U CN203035537 U CN 203035537U
- Authority
- CN
- China
- Prior art keywords
- box cupling
- well pump
- pump
- plunger
- valve
- 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
Links
Images
Landscapes
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to an equal-stroke scale prevention oil well pump, and belongs to the field of oil extraction equipment. The equal-stroke scale prevention oil well pump comprises a plunger assembly, an upper coupling, an outer cylinder, a working pump cylinder and a standing valve assembly. The outer cylinder is connected with outer threads below the upper coupling. The working pump cylinder is connected with inner threads below the upper coupling. The plunger assembly penetrates through the upper coupling and is connected with the upper coupling. The working pump cylinder is sleeved outside the plunger assembly. The standing valve assembly is connected below the outer cylinder. According to the equal-stroke scale prevention oil well pump, the outer cylinder is additionally arranged, a plunger body is lengthened, the inner wall of the working pump cylinder is prevented from being exposed during vertical strokes, the time when the outer wall of the plunger body is exposed can be simultaneously reduced, scale on the outer surface of the plunger body and scale on the inner surface of the working pump cylinder are greatly reduced, and the equal-stroke scale prevention oil well pump has great use value.
Description
Technical field
The utility model relates to a kind of stroke anti-scaling oil-well pump that waits, and belongs to the oil production equipment field.
Background technique
Oil well pump is important in a underground equipment link in the petroleum production industry.The conventional integeral tube pumping pump of present domestic use is that plunger body is shorter than pump barrel length, to-and-fro motion in pump barrel, and pump barrel inside often occurring has heavy dirt to invest above the inwall, causes the holddown phenomenon, brings inconvenience for the oil field work operations.
Summary of the invention
The purpose of this utility model is to provide a kind of stroke anti-scaling oil-well pump that waits to solve above problem.The utility model scientific structure design is reasonable, and the life-span is long, and the oil recovery overall cost is low.
The technological scheme that the utility model provides is:
Deng the stroke anti-scaling oil-well pump, comprise plunger piston assembly, go up box cupling, urceolus, work pump barrel, standing valve assembly, last box cupling below outside thread connects urceolus, last box cupling below internal thread connection work pump barrel, plunger piston assembly passes box cupling and is connected with last box cupling, the working pump jacket casing is in the plunger piston assembly outside, and the urceolus below is connected and fixed valve assembly.
Concrete, box cupling was connected with the standing valve assembly under urceolus passed through.
Concrete, plunger piston assembly is made of upper traveling valve cage, upper travelling valve pair, middle joint, plunger body, lower travelling valve cover, lower travelling valve pair, pipe close, upper traveling valve cage, middle joint, plunger body, lower travelling valve cover, lower travelling valve pair, pipe close from top to bottom connect successively, the upper travelling valve pair is that upper traveling valve cage and middle joint clamp, and the lower travelling valve pair is that lower travelling valve cover and pipe close clamp.
Preferably, working pump tube length degree is half of plunger body length.
The utility model has increased urceolus, lengthen plunger body, avoided work pump barrel inwall exposed when making up-down stroke, can reduce the exposed time of plunger body outer wall simultaneously, significantly reduce the heavy dirt of plunger body outer surface and working pump tube inner surface, had very high use value.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Box cupling on secondary 3 middle joints 4 of 1 upper traveling valve cage, 2 upper travelling valve
5 urceolus, 6 work pump barrels, 7 plunger bodies, 8 lower travelling valve covers
11 times box cuplings of secondary 10 pipe closes of 9 lower travelling valves, 12 standing valve pairs
13 standing valve covers, 14 standing valve cover joints.
Embodiment
As shown in Figure 1, wait the stroke anti-scaling oil-well pump, comprise plunger piston assembly, go up box cupling, urceolus, work pump barrel, standing valve assembly.
Plunger piston assembly is made of upper traveling valve cage, upper travelling valve pair, middle joint, plunger body, lower travelling valve cover, lower travelling valve pair, pipe close, upper traveling valve cage, middle joint, plunger body, lower travelling valve cover, lower travelling valve pair, pipe close from top to bottom connect successively, the upper travelling valve pair is that upper traveling valve cage and middle joint clamp, and the lower travelling valve pair is that lower travelling valve cover and pipe close clamp.
Outside thread connects urceolus below the last box cupling, last box cupling below internal thread connection work pump barrel, and plunger body passes box cupling and is connected with last box cupling, and the working pump jacket casing is in the plunger body outside, and box cupling was connected with the standing valve assembly under urceolus passed through.Working pump tube length degree equals length of stroke, and plunger body length equals work pump barrel and length of stroke sum.
Described standing valve assembly is made of standing valve cover, standing valve pair, standing valve cover joint, and standing valve cover is connected with the standing valve cover joint and the standing valve sub-folder is held between the two.
Plunger piston assembly connects rod string, in the work pump barrel, pump with it, work pump barrel inner body always is attached on the plunger body during plunger piston assembly up-down stroke, plunger body does not have long-time exposed part, make the impurity in the fluid prevent the generation of holddown phenomenon effectively in work pump barrel inside and plunger body outside deposition in the oil pumping process.
Claims (4)
1. wait the stroke anti-scaling oil-well pump, it is characterized in that, comprise plunger piston assembly, go up box cupling, urceolus, work pump barrel, standing valve assembly, last box cupling below outside thread connects urceolus, last box cupling below internal thread connection work pump barrel, plunger piston assembly passes box cupling and is connected with last box cupling, and the working pump jacket casing is in the plunger piston assembly outside, and the urceolus below is connected and fixed valve assembly.
2. according to the described stroke anti-scaling oil-well pump that waits of claim 1, it is characterized in that box cupling was connected with the standing valve assembly under urceolus passed through.
3. according to the described stroke anti-scaling oil-well pump that waits of claim 1, it is characterized in that, plunger piston assembly is made of upper traveling valve cage, upper travelling valve pair, middle joint, plunger body, lower travelling valve cover, lower travelling valve pair, pipe close, upper traveling valve cage, middle joint, plunger body, lower travelling valve cover, lower travelling valve pair, pipe close from top to bottom connect successively, the upper travelling valve pair is that upper traveling valve cage and middle joint clamp, and the lower travelling valve pair is that lower travelling valve cover and pipe close clamp.
4. according to the described stroke anti-scaling oil-well pump that waits of claim 3, it is characterized in that working pump tube length degree is half of plunger body length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220636675 CN203035537U (en) | 2012-11-28 | 2012-11-28 | Equal-stroke scale prevention oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220636675 CN203035537U (en) | 2012-11-28 | 2012-11-28 | Equal-stroke scale prevention oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035537U true CN203035537U (en) | 2013-07-03 |
Family
ID=48687667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220636675 Expired - Fee Related CN203035537U (en) | 2012-11-28 | 2012-11-28 | Equal-stroke scale prevention oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035537U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423147A (en) * | 2013-08-13 | 2013-12-04 | 镇江安达煤矿专用设备有限公司 | Continuous slurry discharge cylinder of grouting pump |
-
2012
- 2012-11-28 CN CN 201220636675 patent/CN203035537U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423147A (en) * | 2013-08-13 | 2013-12-04 | 镇江安达煤矿专用设备有限公司 | Continuous slurry discharge cylinder of grouting pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203948282U (en) | Gas-liquid replacement type anti-gas pump | |
| CN104612944A (en) | Viscous oil pump | |
| CN203035537U (en) | Equal-stroke scale prevention oil well pump | |
| CN203308697U (en) | Sand and dirt preventing efficiency-enhanced oil well pump | |
| CN204163964U (en) | Ring valve type hydraulic feedback oil | |
| CN203394715U (en) | Anti-airlock oil well pump | |
| CN206144766U (en) | Super -long -stroke oil pump | |
| CN205779598U (en) | Horizontal well Special oil pump | |
| CN202157942U (en) | Double-moving oil outlet valve pipe type oil pump | |
| CN203394716U (en) | Energy-saving oil pump | |
| CN104533765A (en) | Double-fixation scale-blockage-preventing long-plunger sand-preventing oil well pump | |
| CN204003392U (en) | The efficient oil well pump with long plunger piston of a kind of Novel gas-tight | |
| CN203035134U (en) | Forward and reverse washing well oil-well pump | |
| CN202971147U (en) | Oil leakage type deep pumping and deloading device | |
| CN203347754U (en) | Well mouth hydraulic compensation device of sucker rod | |
| CN203394717U (en) | Traveling valve tandem type long plunger rod type oil well pump | |
| CN203161503U (en) | Novel holddown-prevention oil-well pump | |
| CN202157953U (en) | Load-reduction sucker rod string | |
| CN206681957U (en) | Three plunger mining pumps | |
| CN205315240U (en) | A alloy sand setting oil -well pump for sand control technology | |
| CN203756135U (en) | Assistant pumping device for deep well | |
| CN203321791U (en) | Rod type oil-well pump with small pump diameter | |
| CN205349677U (en) | Annular plunger float buret formula oil -well pump | |
| CN202732297U (en) | Rodless hydraulic feedback oil pump | |
| CN105275786A (en) | Oil well pump for ultra-deep oil well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20131128 |