CN205349639U - Vacuum pressure boost helping hand oil -well pump - Google Patents
Vacuum pressure boost helping hand oil -well pump Download PDFInfo
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- CN205349639U CN205349639U CN201620140442.0U CN201620140442U CN205349639U CN 205349639 U CN205349639 U CN 205349639U CN 201620140442 U CN201620140442 U CN 201620140442U CN 205349639 U CN205349639 U CN 205349639U
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Abstract
The utility model discloses a vacuum pressure boost helping hand oil -well pump, include the oil pumping pump barrel, take out the oil column stopper, it sets up inside the oil pumping pump barrel to take out the oil column stopper, a pressure boost pump barrel is connected to the lower extreme of oil pumping pump barrel, sets up a pressure boost plunger inside the pressure boost pump barrel, it is connected with the pressure boost plunger to take out oil column stopper lower extreme, the pressure boost plunger, take out between oil column stopper, the oil pumping pump barrel annular space and form and go up the cavity, pressure boost pump barrel lower extreme sets up the low -pressure control valve and forms a cavity with pressure boost plunger lower extreme interfacial, descends the cavity promptly, the filling valve is offered to the lower extreme side of oil pumping pump barrel, take out oil column stopper lower extreme and connect the delivery valve, delivery valve and filling valve all feed through with last cavity. The utility model discloses a plan the structure of evacuation, furthest's utilization the liquid column to take out oil column hold beyond the great wall with the pressure differential of pressure boost plunger lower extreme, the helping hand roofbolt is down, vacuum environment's formation was planned to the cavate under adoption low -pressure control valve structure was guaranteed, the size of the down helping hand of roofbolt is lower relevant deeply with the pump only.
Description
Technical field
This utility model relates to oil well pump, specifically a kind of vacuum boosting power-assisted oil well pump.
Background technology
Along with going deep into of oil field development, heavy oil wells, High angle oil well increase year by year.Owing to viscosity of thickened oil high flow resistance is big, high angle hole kickoff point (KOP) height rod tube frictional resistance is big, it is easily caused in conventional sucker rod pump lifting process the descending difficulty of roofbolt, pump efficiency is low, beam-pumping unit jig frequency is difficult to improve, and affects oil well output.For the problems referred to above, oil field frequently with under enter suction pump and inclined shaft pump lifts, wherein suction pump mainly utilizes hydraulic feedback for the descending offer power of roofbolt, is affected big and action edge increase rate under roofbolt is extremely limited by producing fluid level；And inclined shaft pump is without downstream feedback power, the problem that still cannot solve roofbolt easy laxation when hole deviation is big, extract difficulty.
For this, propose a kind of feedback force only relevant with lower-continuous mapping, and the vacuum boosting formula power-assisted oil well pump unrelated with producing fluid level, with the problem effectively solving high angle hole and heavy oil wells roofbolt laxation, pump efficiency is low, pump detection period is short, significant to the stable yields of oil well is produced.
Utility model content
The purpose of this utility model is in that to provide a kind of vacuum boosting power-assisted oil well pump, solves the problems such as conventional sucker rod pump laxation, pump efficiency in high angle hole and heavy oil wells are applied are low.
A kind of vacuum boosting power-assisted oil well pump, including oil pumping barrel, oil-pumping plunger, described oil-pumping plunger is arranged on inside oil pumping barrel, the lower end of described oil pumping barrel connects a supercharging pump barrel, one pressurization plunger is set inside supercharging pump barrel, described oil-pumping plunger lower end is connected with pressurization plunger, described pressurization plunger, oil-pumping plunger, between oil pumping barrel, annular space forms upper chamber, described supercharging pump barrel lower end arrange low-pressure control valve and and pressurization plunger lower surface between form a chamber, i.e. lower chambers, the lower end side of described oil pumping barrel offers inlet valve, described oil-pumping plunger lower end connects delivery valve, described delivery valve all connects with upper chamber with inlet valve.
When described oil-pumping plunger is up, low-pressure control valve is closed, and lower chambers is formed intends evacuation environment, and delivery valve cuts out simultaneously, and inlet valve is opened, and liquid is flowed into upper chamber by inlet valve.
Described low-pressure control valve upper end connects supercharging pump barrel lower end by outer tube.
Described oil-pumping plunger self upper end connecting with pumping rod.
Described oil-pumping plunger external diameter is more than the external diameter of pressurization plunger.
Compared to prior art, this utility model has the advantages that
When this utility model sucker rod is up, delivery valve cuts out, inlet valve is opened, and completes feed liquor, and now, low-pressure control valve is closed, and hypocavate cavity volume increases rapidly, pressure reduces, and is formed and intends vacuum environment；When sucker rod is descending, whole head of liquid in oil pipe is born in pressurization plunger upper surface, and lower surface connects with the lower chambers of near vacuum, is the descending offer power of sucker rod by pressurization plunger upper and lower end face pressure reduction, plays the effect that power-assisted roofbolt is descending.And this oil well pump power-assisted effect is only relevant with oil well lower-continuous mapping, and power-assisted value is constant, can dramatically increase action edge under roofbolt for heavy oil wells, high angle hole, can increase substantially jig frequency, solves polished rod laxation problem.
1, adopting the structure intending evacuation, make use of the pressure differential that oil-pumping plunger upper surface is formed with pressurization plunger lower surface by fluid column to greatest extent, power-assisted roofbolt is descending；2, hypocavate intends the formation of vacuum environment to adopt low voltage control valve arrangement to guarantee；3, the size of the descending power-assisted of roofbolt only lower deeply relevant with pump.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of vacuum boosting power-assisted oil well pump of the present utility model.
In figure: oil-pumping plunger 1, oil pumping barrel 2, delivery valve 3, upper chamber 4, inlet valve 5, supercharging pump barrel 6, pressurization plunger 7, lower chambers 8, outer tube 9, low-pressure control valve 10.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to illustrate as follows, but accompanying drawing only provides reference and purposes of discussion, is not used for this utility model is any limitation as.
According to Fig. 1, a kind of vacuum boosting power-assisted oil well pump, including oil pumping barrel 2, oil-pumping plunger 1, described oil-pumping plunger is arranged on inside oil pumping barrel, the lower end of described oil pumping barrel connects a supercharging pump barrel 6, one pressurization plunger 7 is set inside supercharging pump barrel, described oil-pumping plunger is connected with pressurization plunger, described pressurization plunger, oil-pumping plunger, between oil pumping barrel, annular space forms upper chamber 4, described supercharging pump barrel 6 lower end arrange low-pressure control valve 10 and and pressurization plunger lower surface between form a chamber and lower chambers 8, the lower end side of described oil pumping barrel offers inlet valve 5, described oil-pumping plunger lower end arranges delivery valve 3, described delivery valve all connects with upper chamber with inlet valve.When described oil-pumping plunger is up, low-pressure control valve is closed, and lower chambers forms plan and takes out true environment.Described low-pressure control valve 10 upper end connects supercharging pump barrel lower end by outer tube 9.Described oil-pumping plunger self upper end connecting with pumping rod.Described oil-pumping plunger external diameter is more than the external diameter of pressurization plunger, and the internal diameter of oil pumping barrel is greater than the internal diameter of supercharging pump barrel.
Work process is:
(1) when sucker rod is up, delivery valve 3 cuts out, and inlet valve 5 is opened, and upper chamber completes feed liquor, and now, low-pressure control valve 10 is closed, and lower chambers 8 volume increases rapidly, pressure reduces, and is formed and intends vacuum environment；
(2) when sucker rod is descending, whole head of liquid in oil pipe is born in pressurization plunger 7 upper surface, and lower surface connects with the lower chambers 8 of near vacuum, is the descending offer power of sucker rod by pressurization plunger 7 upper and lower end face pressure reduction, plays the effect that power-assisted roofbolt is descending.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, other use the equivalence change of patent spirit of the present utility model, all should all belong to the scope of the claims of the present utility model.
Claims (5)
1. a vacuum boosting power-assisted oil well pump, including oil pumping barrel, oil-pumping plunger, described oil-pumping plunger is arranged on inside oil pumping barrel, it is characterized in that, the lower end of described oil pumping barrel connects a supercharging pump barrel, one pressurization plunger is set inside supercharging pump barrel, described oil-pumping plunger lower end is connected with pressurization plunger, described pressurization plunger, oil-pumping plunger, between oil pumping barrel, annular space forms upper chamber, described supercharging pump barrel lower end arrange low-pressure control valve and and pressurization plunger lower surface between form a chamber, i.e. lower chambers, the lower end side of described oil pumping barrel offers inlet valve, described oil-pumping plunger lower end connects delivery valve, described delivery valve all connects with upper chamber with inlet valve.
2. a kind of vacuum boosting power-assisted oil well pump according to claim 1, it is characterised in that when oil-pumping plunger is up, low-pressure control valve is closed, lower chambers is formed intends evacuation environment.
3. a kind of vacuum boosting power-assisted oil well pump according to claim 1, it is characterised in that described low-pressure control valve upper end is connected to supercharging pump barrel lower end by outer tube.
4. a kind of vacuum boosting power-assisted oil well pump according to claim 1, it is characterised in that described oil-pumping plunger is at self upper end connecting with pumping rod.
5. a kind of vacuum boosting power-assisted oil well pump according to claim 1, it is characterised in that the external diameter of described oil-pumping plunger is greater than the external diameter of pressurization plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620140442.0U CN205349639U (en) | 2016-02-25 | 2016-02-25 | Vacuum pressure boost helping hand oil -well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620140442.0U CN205349639U (en) | 2016-02-25 | 2016-02-25 | Vacuum pressure boost helping hand oil -well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205349639U true CN205349639U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201620140442.0U Active CN205349639U (en) | 2016-02-25 | 2016-02-25 | Vacuum pressure boost helping hand oil -well pump |
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| CN (1) | CN205349639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761982A (en) * | 2018-07-26 | 2020-02-07 | 中国石油化工股份有限公司 | Variable-displacement injection-production integrated lifting device |
| CN110821802A (en) * | 2018-08-10 | 2020-02-21 | 中国石油化工股份有限公司 | Force-increasing and pumping-assisting device and method for viscous oil inclined shaft |
-
2016
- 2016-02-25 CN CN201620140442.0U patent/CN205349639U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761982A (en) * | 2018-07-26 | 2020-02-07 | 中国石油化工股份有限公司 | Variable-displacement injection-production integrated lifting device |
| CN110821802A (en) * | 2018-08-10 | 2020-02-21 | 中国石油化工股份有限公司 | Force-increasing and pumping-assisting device and method for viscous oil inclined shaft |
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