CN2898365Y - Double-stage passageway synergistic oil pump - Google Patents
Double-stage passageway synergistic oil pump Download PDFInfo
- Publication number
- CN2898365Y CN2898365Y CN 200620112827 CN200620112827U CN2898365Y CN 2898365 Y CN2898365 Y CN 2898365Y CN 200620112827 CN200620112827 CN 200620112827 CN 200620112827 U CN200620112827 U CN 200620112827U CN 2898365 Y CN2898365 Y CN 2898365Y
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- China
- Prior art keywords
- standing valve
- oil
- valve
- middle standing
- pump
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- Expired - Lifetime
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Abstract
The utility model relates to a synergic type of double-stage channel oil pump, which comprises an upper nozzle 1, an outer tube 2, a traveling valve 3, a suction piston 4, a diameter expansion at a middle standing valve 5, a middle standing valve 6, a bottom standing valve 7, and a lower nozzle 8; due to the adoption of diameter expansion at middle standing valve as well as the middle standing valve, a new oil-feeding channel is formed and a second oil-feeding process begins until the upstroke process finishes. The work mode of alternation between A first and second oil-feeding can significantly improve the working effectiveness of oil-pumping during the upstroke process and the middle standing valve can increase the volume efficiency with gas prevention function. If the traveling valve is hard to start, replenish fluid into the pump working space through the diameter expansion 5 of middle standing valve to the fluid compressibility in the working space until the airlock is relieved. Thus, the pump also applies to oil well of high gas content. The utility model has the advantages of being simply structured, easy to operate and suitable for on-scene application.
Description
Technical field:
The utility model relates to the downhole tool that uses on a kind of oilfield, particularly a kind of two-stage flow passage Synergistic type oil well pump.
Background technique:
Fluid motion in the oil pumping pump barrel is a kind of progressive accelerating process, and this accelerating process also lags behind the motion of plunger, and especially the long stroke oil well pump is all the more so.Usually such situation can occur, when plunger motion is in the middle part of pump barrel, because oil stream seriously lags behind plunger motion, serious vaccuum phenomenon will appear in pump, thereby cause pump efficiency seriously to reduce.
Technological scheme
The utility model purpose is to provide a kind of two-stage flow passage Synergistic type oil well pump, a kind of Special subsurface pump that is applicable to that low yield thin oil well, low submergence oil well, high-gas-contained well and the thick oil well of viscosity below 4000mPaS (under the condition of mixing oil) are produced.This pump adopts twin-stage double flow channel standing valve, compares with common oil well pump to have obvious increase pump efficiency and prevent the gas lock function.
The utility model purpose is to realize like this, it is made up of upper connecting tube (1), urceolus (2), traveling valve (3), suction piston (4), middle part standing valve place's hole enlargement (5), middle part standing valve (6), bottom standing valve (7), lower linking tube (8) parts, urceolus (2) is connected with lower linking tube (8), in urceolus (2), be followed successively by upper connecting tube (1), traveling valve (3), suction piston (4), bottom standing valve (7) from top to bottom, middle part standing valve place's hole enlargement (5), middle part standing valve (6) arranged at urceolus (2) middle part.
In starting stage, bottom standing valve 7 is opened in upstroke, beginning oil-feed for the first time process, and when plunger motion was in the middle part of pump barrel, middle part standing valve 6 was opened, and forms new oil inlet passage, and beginning oil-feed for the second time process finishes until the upstroke process.This once, secondary replaces the working method of oil-feed, can obviously improve the work effect of oil well pump in the upstroke process, reaches the purpose that improves pump efficiency.
The utility model forms new oil inlet passage owing to adopt standing valve place's hole enlargement in the middle part of the urceolus middle part has, middle part standing valve, and beginning oil-feed for the second time process finishes until the upstroke process.This once, secondary replaces the working method of oil-feed, can obviously improve the work effect of oil well pump in the upstroke process, the middle part standing valve removes has the effect that increases volumetric efficiency, has anti-airway dysfunction concurrently.Under the situation that the traveling valve difficulty has been opened, can by the middle part standing valve locate hole enlargement 5 liquid make-up in the pump work chamber, thereby reduce the compressibility of active chamber inner fluid, till removing gas lock, so this pump also is applicable to high gassiness oil well.The utility model is simple in structure, and is easy to use, is well suited for field popularization application.
Description of drawings
Accompanying drawing is a schematic representation of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment
As shown in the figure, the utility model is made up of upper connecting tube 1, urceolus 2, traveling valve 3, suction piston 4, middle part standing valve place's hole enlargement 5, middle part standing valve 6, bottom standing valve 7, lower linking tube 8 parts, urceolus 2 is connected with lower linking tube 8, in urceolus 2, be followed successively by upper connecting tube 1, traveling valve 3, suction piston 4, bottom standing valve 7 from top to bottom, middle part standing valve place's hole enlargement 5, middle part standing valve 6 are arranged at urceolus 2 middle parts.Oil inlet passage has carried out the streaming design, the pressure loss that has produced when having reduced oily stream by pump valve; Middle part standing valve 6 has adopted no magnetic material, can overcome attachment such as impurity and adhere to ball valve; Bottom standing valve 7 is the reaming structure.
Claims (2)
1, a kind of two-stage flow passage Synergistic type oil well pump, it is made up of upper connecting tube (1), urceolus (2), traveling valve (3), suction piston (4), middle part standing valve place's hole enlargement (5), middle part standing valve (6), bottom standing valve (7), lower linking tube (8) parts, it is characterized in that: urceolus (2) is connected with lower linking tube (8), in urceolus (2), be followed successively by upper connecting tube (1), traveling valve (3), suction piston (4), bottom standing valve (7) from top to bottom, middle part standing valve place's hole enlargement (5), middle part standing valve (6) arranged at urceolus (2) middle part.
2, a kind of two-stage flow passage Synergistic type oil well pump according to claim 1 is characterized in that: middle part standing valve (6) adopts no magnetic material; Bottom standing valve (7) is the reaming structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620112827 CN2898365Y (en) | 2006-04-26 | 2006-04-26 | Double-stage passageway synergistic oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620112827 CN2898365Y (en) | 2006-04-26 | 2006-04-26 | Double-stage passageway synergistic oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2898365Y true CN2898365Y (en) | 2007-05-09 |
Family
ID=38073699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620112827 Expired - Lifetime CN2898365Y (en) | 2006-04-26 | 2006-04-26 | Double-stage passageway synergistic oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2898365Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015958A (en) * | 2012-07-23 | 2013-04-03 | 常州大学 | Underground spiral gas-liquid separation and reinjection device as well as reinjection method |
| CN104632603A (en) * | 2013-11-12 | 2015-05-20 | 上海凯士比泵有限公司 | Pump test loop degassing unit |
| CN111520115A (en) * | 2020-03-31 | 2020-08-11 | 东营市朝阳石油科技有限公司 | Zero-clearance oil-gas mixed pumping device and method |
-
2006
- 2006-04-26 CN CN 200620112827 patent/CN2898365Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015958A (en) * | 2012-07-23 | 2013-04-03 | 常州大学 | Underground spiral gas-liquid separation and reinjection device as well as reinjection method |
| CN103015958B (en) * | 2012-07-23 | 2015-08-05 | 常州大学 | Underground Spiral gas-liquid separation re-injection device and re-injection method |
| CN104632603A (en) * | 2013-11-12 | 2015-05-20 | 上海凯士比泵有限公司 | Pump test loop degassing unit |
| CN111520115A (en) * | 2020-03-31 | 2020-08-11 | 东营市朝阳石油科技有限公司 | Zero-clearance oil-gas mixed pumping device and method |
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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 |
Granted publication date: 20070509 |
|
| EXPY | Termination of patent right or utility model |