CN2839645Y - Oil well increasing production power-saving counter current control valve - Google Patents
Oil well increasing production power-saving counter current control valve Download PDFInfo
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- CN2839645Y CN2839645Y CN 200520088447 CN200520088447U CN2839645Y CN 2839645 Y CN2839645 Y CN 2839645Y CN 200520088447 CN200520088447 CN 200520088447 CN 200520088447 U CN200520088447 U CN 200520088447U CN 2839645 Y CN2839645 Y CN 2839645Y
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- oil well
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Abstract
The utility model relates to an oil well increasing production power-saving counter current control valve, which is composed of press caps, a sealing pad, a valve body, nuts, a small piston, a piston cylinder, an exhaust pin, an O-shaped ring and a big piston. The utility model is characterized in that the valve body is cylindrical, and the press caps are arranged on both ends; female threads are arranged on the upper and the lower sides of the press caps, and the female threads on the lower parts are matched with male threads on both ends of the valve body; annular grooves are arranged on the peripheral sides of the lower ends of the female threads on the press caps; the piston cylinder is inserted in the annular grooves; the piston cylinder is provided with an upper and a lower cavities; the big piston is arranged in the upper cavity, and the small piston is arranged in the lower cavity; the two pistons are arranged at the same shaft center; a piston rod hole is arranged on the interlayer of the middle part of the piston cylinder; the two pistons are connected by a piston rod; the middle part of the valve body and the piston cylinder is provided with the exhaust pin which is in screw connection with the valve body; the exhaust pin and the interlayer of the piston cylinder are inserted together, and is communicated with a communicating hole; gas-liquid flowing holes are arranged on the upper and the lower ends of the piston cylinder; the upper flowing hole is arranged on the upper side of the bottom dead center of the big piston, and the lower flowing hole is arranged at the lower side of the bottom dead center of the small piston.
Description
One, technical field
The utility model relates to the used oil well production increasing economize on electricity countercurrent control valve of a kind of beam pumping unit well head.
Two, background technique
At present the beam pumping unit oil production method is that the pump piston that drives oil well pump by sucker rod of pumping unit pumps and shaft bottom oil is extracted into ground enters gathering line, piston is whenever up once just to be extracted pump barrel oil once out, pump barrel with regard to oil-feed once simultaneously, piston is every once descending, just the oil in the pump barrel below the piston is discharged to piston top, extracts out when treating piston stroking upward.The pump efficiency of oil well pump is absolutely in theory, in fact except that having from the oil well of the ability of overflowing reaches a hundred per cent or surpasses absolutely, most wells is owing to contain sand, gassiness, the pump filling index is not high, reasons such as standing valve and travelling valve are poorly sealed, pump efficiency has only between the 40%-60%, there is 40%-60% flogging a dead horse, the electric energy of half wastes, because during descent of piston, the pressure in the tubing string is low, and the part oil of gathering line is got back in the tubing string again under the reaction of back pressure, replenish the deficit of 40%-60%, and back pressure acted on above the piston, at the oil field high water-cut stage, wellhead back pressure is generally at 0.7-0.9Mpa, by 10 meters fluid columns is 0.1Mpa, that is to say the pressure that increases 70-90 rice fluid column in the tubing string, this all is flog a dead horse internal factor and a reason of pumping unit, and oil well pump is divided into the one-level pump by precision in addition, two stage pump and triplex, owing to contain sand, major part all is to adopt triplex.Each other pump of level all has a sealing load limit, seals better in the limit, and one near the limiting value or the value of overstepping the extreme limit, and pump leakage just increases considerably, and the reaction force of wellhead back pressure makes oil well pump surpass its maximal work sometimes.Overcome the undesirable element that exists in the above-mentioned oil well pump work, just can improve the pump efficiency of oil well pump, minimizing flogs a dead horse, saving power.
Three, summary of the invention
The purpose of this utility model provides a kind of oil well production increasing economize on electricity countercurrent control valve, and it is low to overcome the oil well pump pump efficiency, flogs a dead horse, and the undesirable element of waste electric energy reaches the purpose that oil well production increasing economizes on electricity.
The technical solution of the utility model realizes in the following manner:
The utility model is by pressure cap, sealing gasket, valve body, nut, small piston, piston cylinder, the exhaust pin, O shape circle and big piston are formed, it is characterized in that valve body is a cylindrical shape, two ends are provided with pressure cap, have box thread on the pressure cap, the bottom box thread cooperates with the male thread at valve body two ends, box thread lower end week side is provided with annular groove on pressure cap, be inlaid with piston cylinder in the groove, piston cylinder is provided with two chambeies up and down, big piston is housed in the epicoele, small piston is housed in the cavity of resorption, the two-piston concentric, be provided with a piston rod hole on the interlayer of piston cylinder middle part, two-piston is connected by a piston rod; Be provided with an exhaust pin at valve body and piston cylinder middle part, be threaded with valve body, inlay with the piston cylinder interlayer, the exhaust pin communicates with intercommunicating pore; Be provided with the gas-liquid flow through hole in two end part up and down at piston cylinder, last opening is located at big piston lower dead centre top, and following opening is located at the lower dead centre bottom of small piston.
All sides at big small piston are provided with annular groove.
Be provided with O shape circle in all sides of the upper and lower end parts of valve body, be provided with sealing gasket in the upper and lower end face.
The utlity model has following advantage:
1, can eliminate of the influence of well head pipe pressure, improve oil well output, beam-pumping unit be reduced flog a dead horse, reduce the electric motor starting electric current, saving power oil well output.
2, reliable, simple in structure, the sensitive reversing of principle has been eliminated the reaction force of well head pipe pressure to the oil well pump piston.
3, because of the upper piston sectional area is big, the lower piston sectional area is little, and control valve just is opened with very little power, and oil well pump need not build the pressure, and the pumping unit running current is steady, can overcome the quiet coherence power of gathering line simultaneously.
Four, description of drawings
Fig. 1-structural representation of the present utility model
1-pressure cap 2,9-sealing gasket 3-valve body 4-nut 5-small piston 6-piston cylinder 7-exhaust pin 8,11-O shape circle 10-big piston among the figure
Five, embodiment
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description:
The utility model is by pressure cap 1, sealing gasket 2,9, valve body 3, nut 4, small piston 5, piston cylinder 6, exhaust pin 7, O shape circle 8,11 and big piston 10 form, valve body is a cylindrical shape, two ends are provided with pressure cap, have box thread on the pressure cap, the bottom box thread cooperates with the male thread at valve body two ends, box thread lower end week side is provided with annular groove on pressure cap, be inlaid with piston cylinder in the groove, piston cylinder is provided with two chambeies up and down, big piston is housed in the epicoele, small piston is housed in the cavity of resorption, the two-piston concentric, be provided with a piston rod hole on the interlayer of piston cylinder middle part, two-piston is connected by a piston rod; Be provided with an exhaust pin at valve body and piston cylinder middle part, be threaded with valve body, inlay with the piston cylinder interlayer, the exhaust pin communicates with intercommunicating pore; Be provided with the gas-liquid flow through hole in two end part up and down at piston cylinder, last opening is located at big piston lower dead centre top, and following opening is located at the lower dead centre bottom of small piston.
In use, the oil well production increasing countercurrent control valve that economizes on electricity is installed in the fuel-displaced gate of production tree front, wellhead back pressure valve back, level install or vertical installation all can, big piston must be towards the fuel-displaced direction of the fuel-displaced gate of production tree during installation.When oil well pump piston stroking upward during near upper dead center, oil-air pressure will push away only lower dead centre at piston, gas stream is through last through hole annular space, lower through-hole flows into gathering line, when descent of piston, pit shaft moment generation low pressure area, the suction that pit shaft produces and the back pressure of gathering line are to the thrust of small piston, big piston moment is pulled to upper dead center, the pit shaft oil gas that returns of gathering line is sealed, this valve pumps with the oil well pump piston and moves back and forth, and solved the problem that wellhead back pressure influences well production preferably.
Claims (3)
1, a kind of oil well production increasing economize on electricity countercurrent control valve, by pressure cap, sealing gasket, valve body, nut, small piston, piston cylinder, the exhaust pin, O shape circle and big piston are formed, it is characterized in that valve body is a cylindrical shape, two ends are provided with pressure cap, have box thread on the pressure cap, the bottom box thread cooperates with the male thread at valve body two ends, box thread lower end week side is provided with annular groove on pressure cap, be inlaid with piston cylinder in the groove, piston cylinder is provided with two chambeies up and down, and big piston is housed in the epicoele, small piston is housed in the cavity of resorption, the two-piston concentric is provided with a piston rod hole on the interlayer of piston cylinder middle part, two-piston is connected by a piston rod; Be provided with an exhaust pin at valve body and piston cylinder middle part, be threaded with valve body, inlay with the piston cylinder interlayer, the exhaust pin communicates with intercommunicating pore; Be provided with the gas-liquid flow through hole in two end part up and down at piston cylinder, last opening is located at big piston lower dead centre top, and following opening is located at the lower dead centre bottom of small piston.
2, oil well production increasing economize on electricity countercurrent control valve according to claim 1 is characterized in that described all sides at big small piston are provided with annular groove.
3, oil well production increasing economize on electricity countercurrent control valve according to claim 1 is characterized in that all sides of described upper and lower end parts at valve body are provided with O shape circle, are provided with sealing gasket in the upper and lower end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520088447 CN2839645Y (en) | 2005-10-26 | 2005-10-26 | Oil well increasing production power-saving counter current control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520088447 CN2839645Y (en) | 2005-10-26 | 2005-10-26 | Oil well increasing production power-saving counter current control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2839645Y true CN2839645Y (en) | 2006-11-22 |
Family
ID=37427629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520088447 Expired - Fee Related CN2839645Y (en) | 2005-10-26 | 2005-10-26 | Oil well increasing production power-saving counter current control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2839645Y (en) |
-
2005
- 2005-10-26 CN CN 200520088447 patent/CN2839645Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |