CN201306276Y - Self-cleaning sand-screening pipe pumping unit - Google Patents
Self-cleaning sand-screening pipe pumping unit Download PDFInfo
- Publication number
- CN201306276Y CN201306276Y CNU2008200650902U CN200820065090U CN201306276Y CN 201306276 Y CN201306276 Y CN 201306276Y CN U2008200650902 U CNU2008200650902 U CN U2008200650902U CN 200820065090 U CN200820065090 U CN 200820065090U CN 201306276 Y CN201306276 Y CN 201306276Y
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- CN
- China
- Prior art keywords
- pump barrel
- sand
- oil
- plunger
- pump
- 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
- 238000004140 cleaning Methods 0.000 title claims abstract description 10
- 238000005086 pumping Methods 0.000 title abstract description 14
- 238000012216 screening Methods 0.000 title abstract 4
- 239000004576 sand Substances 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 244000273618 Sphenoclea zeylanica Species 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 25
- 239000003129 oil well Substances 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000000295 fuel oil Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a self-cleaning sand-screening pipe pumping unit for a plunger-type oil pump, which overcomes the defects that the prior oil pump has short service life, low pumping efficiency and poor sand control performance. The technical scheme is as follows: an upper plunger piston is arranged in an upper pump barrel, and the lower side of the upper plunger piston is connected with a hollow rod which is connected with a lower plunger piston; a lower pump barrel is arranged between the lower part of the upper pump barrel and the lower plunger piston, and a double-layer structure is arranged at the lower end of the upper pump barrel; a feedback liquid discharge outlet is arranged above the lower pump barrel, and a traveling valve is arranged at the bottom of the lower plunger piston; a standing valve is arranged at the bottom of the lower pump barrel, and a sand-screening pipe is arranged at the lower end of the whole upper pump barrel; and the self-cleaning sand-screening pipe pumping unit is hung at the lower end of an oil pipe. The utility model has higher pumping efficiency for a high sand-content and high-viscosity heavy oil producing oil well; the blocking phenomenon does not occur during service life, thereby obviously improving the service life of the oil pump; and the utility model is suitable for various sanding production wells.
Description
Technical field
The utility model relates to a kind of self-cleaning type sand screen oil rig that the oil field plunger oil-well pump uses that is used for, and is particularly suitable for being provided with in sand content height, the employed plunger oil-well pump of thickened oil recovery that viscosity is big.
Background technique
The sand control measure that adopts mainly contains at present: mechanical sand control, chemical sand control, coking sand control and composite sand prevention.Wherein the most general method is exactly to realize sand control by the mode that the oil well pump lower end hangs sand screen.Conventional oil pumping method is because the one-way flow of viscous crude oil stream easily causes oil well pump to stop up, so that stop production, shortcoming is: the phase of being excused from a college course is shorter, and working life is lower.And the anti-sand method of lower end suspension sand screen is compared with conventional oil pumping method, and the phase of being excused from a college course promotes to some extent, and sand screen sand plug problem has reduced the oil pumping pump efficiency.
With the pumping unit deep-well oil pump of the power last 100 years history of having passed by, three general objectives that people pursue all the time: high pump efficiency, long period and widely adaptability still be unrealized, the frequent pump detection and workover amount that is caused by factors such as low pump efficiencys perplexs on the contrary, it is shorter and shorter that the plunger pump sump on average is excused from a college course the phase, some in addition less than just needing the inspection pump in 30 days.
At the problem that plunger oil-well pump exists, in oil field development, sucker-rod pumping system is present most widely used artificial lift mode.Rod pumping pump is installed in the oil pipe bottom, is submerged in the well liquid, and the power that transmits by pumping unit, sucker rod aspirates liquid in the well.But so also fundamentally do not solve raising to the high well recovery efficient of sand content.
Lower end suspension sand screen oil rig has the sand control card, sand control buries, prevents sand milling, uses characteristics such as easy to maintenance.When improving oil well pump efficient, improved rate of withdrawal to a certain extent, the raising of petroleum production efficient has been had very big effect and higher economic value.
The filter sand device that the oil well pump lower end hangs is exactly that the big viscous crude of viscosity height, sand content that enters pump barrel from oil reservoir is filtered, thereby stop sand grains to enter in the gap of pump barrel and pump barrel and plunger, prevent the wearing and tearing of pump barrel and plunger by such approach, thereby make the oil well pump phase of being excused from a college course further improve, increase the working life of oil well pump.
Summary of the invention
The purpose of this utility model is: in order to overcome existing oil well pump short, defectives such as pumping efficiency is low, sand control capability difference in working life, the spy provides a kind of self-cleaning type sand screen oil rig.
To achieve these goals, the utility model proposes following technological scheme: a kind of self-cleaning type sand screen oil rig, form by upper and lower pump barrel, upper and lower plunger, feedback liquid exhaust port, hollow stem, traveling valve, standing valve, sand screen, its structure characteristic is: the top plunger is installed in the pump barrel of top, be connected with hollow stem below the plunger of top, hollow stem is connected with the bottom plunger again; The bottom pump barrel is installed in the pump barrel below, top and between the plunger of bottom, pump barrel lower end, top has double layer construction, and pump barrel top in bottom is provided with feedback liquid exhaust port; Plunger base is equipped with traveling valve in the bottom, in bottom pump barrel bottom standing valve is installed; Sand screen is arranged on the lower end of whole top pump barrel.This self-cleaning type sand screen oil rig hangs on the oil pipe lower end.
In the plunger oil-well pump running, moving up and down of plunger makes certain gauging stream obtain enough pressure by the feedback valve reversing motion, flows in the pit shaft by oil pipe, sand screen, and the process that flows out from sand screen promptly is that sand screen is carried out backwash process.
The beneficial effect that the utlity model has is: this oil rig has higher pumping efficiency to high sand content, thickened oil recovery oil well that viscosity is big; Can blockage phenomenon in life time, the working life that can obviously improve oil well pump; Being suitable for all kinds of sand wells uses.
Description of drawings
Fig. 1 is the structural representation of the utility model self-cleaning type sand screen oil rig.Among the figure: 1. top pump barrel, 2. top plunger, 3. feedback liquid exhaust port, 4. hollow stem, 5. bottom pump barrel, 6. bottom plunger, 7. traveling valve, 8. standing valve, 9. sand screen.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
According to shown in Figure 1, this oil rig comprises: top pump barrel 1, bottom pump barrel 5, top plunger 2, bottom plunger 6, traveling valve 7, standing valve 8, hollow stem 4, feedback liquid exhaust port 3, sand screen 9.Top plunger 2, hollow stem 4 and bottom plunger 6 are connected as a single entity, and become the series connection plunger.When columns in series was gone beyond the Great Wall, traveling valve 7 cut out, and volume increases between traveling valve 7 and the standing valve 8, and then standing valve 8 is opened; Along with the up of plunger of connecting, hollow stem 4 outer annular space volumes also increase simultaneously, thereby in the sieve aperture inflow sand screen 9 of the oil well fluid outside the realization sand screen 9 by sand screen 9.When the series connection plunger was descending, standing valve 8 cut out, and traveling valve 7 is opened; And the annular space smaller volume outside the hollow stem 4 forces the oil well fluid in it to flow out by the sieve aperture that feeds back liquid exhaust port 3 and sand screen 9.Therefore when columns in series plug upstream or downstream, can realize that just the oil well fluid flows into and the back flush operation the forward of sand screen 9 sieve apertures.
Claims (1)
1, a kind of self-cleaning type sand screen oil rig, form by upper and lower pump barrel, upper and lower plunger, feedback liquid exhaust port, hollow stem, traveling valve, standing valve, sand screen, it is characterized in that: top plunger (2) is installed in the top pump barrel (1), be connected with hollow stem (4) below the top plunger (2), hollow stem (4) is connected with bottom plunger (6) again; Bottom pump barrel (5) is installed in top pump barrel (1) below and between the bottom plunger (6), top pump barrel (1) lower end has double layer construction, and bottom pump barrel (5) top is provided with feedback liquid exhaust port (3); In bottom plunger (6) bottom traveling valve (7) is installed, standing valve (8) is installed in bottom pump barrel (5) bottom; Sand screen (9) is arranged on the lower end of whole top pump barrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200650902U CN201306276Y (en) | 2008-09-11 | 2008-09-11 | Self-cleaning sand-screening pipe pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200650902U CN201306276Y (en) | 2008-09-11 | 2008-09-11 | Self-cleaning sand-screening pipe pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306276Y true CN201306276Y (en) | 2009-09-09 |
Family
ID=41098742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200650902U Expired - Fee Related CN201306276Y (en) | 2008-09-11 | 2008-09-11 | Self-cleaning sand-screening pipe pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306276Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500265A (en) * | 2019-08-23 | 2019-11-26 | 程雅雯 | A kind of long oil well pump of long plunger sand control equipped with resistance sand hydrotubator |
| CN111788396A (en) * | 2018-03-09 | 2020-10-16 | 株式会社不二工机 | Installation structure of drain pump |
| CN115898341A (en) * | 2022-11-29 | 2023-04-04 | 辽宁石油化工大学 | A new integrated sand control oil production device and method |
| CN116136214A (en) * | 2021-11-17 | 2023-05-19 | 中国石油天然气股份有限公司 | A plunger-type hollow rod oil recovery type cross-bridge deep well pump |
-
2008
- 2008-09-11 CN CNU2008200650902U patent/CN201306276Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111788396A (en) * | 2018-03-09 | 2020-10-16 | 株式会社不二工机 | Installation structure of drain pump |
| CN111788396B (en) * | 2018-03-09 | 2022-08-02 | 株式会社不二工机 | Mounting structure of draining pump |
| CN110500265A (en) * | 2019-08-23 | 2019-11-26 | 程雅雯 | A kind of long oil well pump of long plunger sand control equipped with resistance sand hydrotubator |
| CN110500265B (en) * | 2019-08-23 | 2020-11-13 | 阿奥艾斯石油工程服务成都有限公司 | Long plunger sand prevention long oil well pump with sand blocking liquid through device |
| CN116136214A (en) * | 2021-11-17 | 2023-05-19 | 中国石油天然气股份有限公司 | A plunger-type hollow rod oil recovery type cross-bridge deep well pump |
| CN115898341A (en) * | 2022-11-29 | 2023-04-04 | 辽宁石油化工大学 | A new integrated sand control oil production device and method |
| CN115898341B (en) * | 2022-11-29 | 2025-12-09 | 辽宁石油化工大学 | Integrated sand prevention oil extraction device and method |
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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: 20090909 Termination date: 20100911 |