CN207131557U - A kind of eccentrically arranged valve solid plunger small displacement oil well pump - Google Patents
A kind of eccentrically arranged valve solid plunger small displacement oil well pump Download PDFInfo
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- CN207131557U CN207131557U CN201721186601.1U CN201721186601U CN207131557U CN 207131557 U CN207131557 U CN 207131557U CN 201721186601 U CN201721186601 U CN 201721186601U CN 207131557 U CN207131557 U CN 207131557U
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- oil
- valve
- biasing
- pump barrel
- eccentrically arranged
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Abstract
The utility model relates to a kind of eccentrically arranged valve solid plunger small displacement oil well pump, this eccentrically arranged valve solid plunger small displacement oil well pump includes combination pump barrel, assembly for plunger, valve group assembly, second outer tube lower end of combination pump barrel is connected with eccentrically arranged valve reducing top connection, eccentrically arranged valve reducing top connection is connected to biasing oil-release valve cover upper end, pump barrel upper end is fixed by box cupling on pump barrel, box cupling is evenly distributed fluid hole, pump barrel lower end connection biasing oil-release valve cover on pump barrel；Solid plunger upper end cylinder lever connecting rod；Valve group assembly includes oil-feed valve assembly and fuel-displaced valve assembly, the uniform 4 valve ball chambers of biasing oil-release valve cover lower end edge circumference of fuel-displaced valve assembly, the uniform 4 eccentric oil outlets in each valve ball bottom of chamber portion, each eccentric oil outlet penetrates biasing oil-release valve cover, the centrally disposed plunger hole of oil-release valve cover is biased, pump barrel lower end is connected by plunger hole with biasing oil-release valve cover.The utility model can extend the service life of oil well pump, reduce cost.
Description
Technical field：
The utility model relates to mechanical oil recovery equipment technical field in petroleum industry, and in particular to be a kind of biasing
Valve solid plunger small displacement oil well pump.
Background technology：
The deep development of the untraditional reservoirs such as hypotonic, ultra-low penetration oil field turns into necessity of China's old filed volume increase stable yields
Means, but this part stripper well individual well daily fluid production rate is less than 2m3, conventional wear-resistant cover structure is thin, and small pump diameter meeting
Cause break-off accident to take place frequently, and use 32 mm oil pumping theoretical displacement of pump to be much larger than the fluid supply capacity of stripper well, so as to make
Imbalance problem is adopted in confession into current stripper well exploitation field generally existing.Stripper well may result in for adopting imbalance and take out
Oil pump sky is taken out, so as to cause plunger and pump barrel to be dry grinded, unstable wear, and pump efficiency is low and polished rod load also bring greatly it is unnecessary
Energy waste.Although uneven present situation is adopted in the confession that reduction swabbing parameter can alleviate oil field, to reach daily output liquid less than 2m3
Oil well for adopting standard, it is necessary to change decelerator or increase frequency conversion adjustment device for high, and then bring extra cost input.Therefore,
Reduce the diameter of plunger of oil well pump, development of new minor diameter oil well pump is the unique of solution stripper well oil recovery field Problems Existing
Approach.
By the analysis of the structure and operation principle of small displacement oil well pump generally tried out conventional oil well pump and each oil field,
The main reason for limitation small displacement oil well pump is applied in stripper well field is drawn：1. conventional minor diameter wear-resistant cover structure list
It is thin；The discharge of pump intracavity gas is difficult caused by 2. stream complexity, evacuation and crude oil solution gas escape in solid plunger oil pump；③
Travelling valve external structure clearance volume is excessive, is only used for big submergence operating mode.
The content of the invention：
The purpose of this utility model is to provide this eccentrically arranged valve solid plunger small displacement oil well pump and is used for solving prior art
In, the problem of existing small-displacement plunger structure is thin, interior stream is complicated and gases affect is serious.
Technical scheme is used by the utility model solves its technical problem：This eccentrically arranged valve solid plunger small displacement is taken out
Oil pump includes combination pump barrel, assembly for plunger, valve group assembly, and combination pump barrel is short by tubing coupling bottom connected pipes pipe nipple, oil pipe
Section is connected by box cupling on outer tube with the first outer tube, and the second outer tube upper end is connected by outer tube connection coupling with the first outer tube, the
Two outer tube lower ends are connected with eccentrically arranged valve reducing top connection, and eccentrically arranged valve reducing top connection is connected to biasing oil-release valve cover upper end, pump barrel
Upper end is fixed by box cupling on pump barrel, and box cupling is evenly distributed fluid hole, pump barrel lower end connection biasing oil-release valve cover on pump barrel；It is real
Stem plug is back and forth run in pump barrel, solid plunger upper end cylinder lever connecting rod；Valve group assembly includes oil-feed valve assembly and delivery valve is total
Into fuel-displaced valve assembly includes the top connection of eccentrically arranged valve reducing, biasing oil-release valve cover, fuel-displaced valve ball, fuel-displaced valve ball fixed seat, eccentrically arranged valve
Reducing lower contact, the uniform 4 valve ball chambers of oil-release valve cover lower end edge circumference are biased, uniform 4 of each valve ball bottom of chamber portion is partially
Heart oil outlet, each eccentric oil outlet penetrates biasing oil-release valve cover, and another mouth of each eccentric oil outlet is arranged on partially
Put on the upper surface of oil-release valve cover, bias the centrally disposed plunger hole of oil-release valve cover, there is an internal thread upper end of plunger hole, under pump barrel
End is connected by plunger hole with biasing oil-release valve cover；Oil-feed valve assembly, which includes pipe nipple box cupling, oil-feed valve ball, oil-feed valve ball, to be fixed
Seat, oil-feed valve bonnet, inlet valve anchor tip, oil-feed valve assembly are connected with fuel-displaced valve assembly by extension nipple.
Fuel-displaced valve ball is arranged in biasing oil-release valve cover in such scheme, and fuel-displaced valve ball falls in fuel-displaced valve ball fixed seat,
Fuel-displaced valve ball fixed seat is fixed in biasing oil-release valve cover by delivery valve fixing bolt, biases oil-release valve cover lower end and eccentrically arranged valve
Reducing lower contact is connected；Oil-feed valve bonnet includes oil-feed valve ball, and oil-feed valve ball falls in oil-feed valve ball fixed seat, and oil-feed valve ball is consolidated
Reservation is fixed in oil-feed valve bonnet by inlet valve anchor tip, and oil-feed valve bonnet is connected with pipe nipple box cupling.
Solid plunger outer surface and pump barrel outer surface are machined with anti-sand launder in such scheme.
There are 3 valve ball chambers by delivery valve sealing bolt fit sealing in such scheme in 4 valve ball chambers, so,
During eccentrically arranged valve solid plunger small displacement oil pumping pump work, a valve ball chamber job, its excess-three valve ball chamber does not work, and uses delivery valve
Sealing bolt seals.When a valve ball chamber damages, another valve ball chamber is changed, to increase the service life.
The utility model has the advantages that：
1st, biasing delivery valve of the present utility model uses big runner ball cell structure, improves the interior stream of solid plunger oil pump
Performance, reduces effusion into pump liquid solution gas and plunger is disconnected de-, promotes the discharge of crude oil emergent gas, can keep taking out
The guidance quality of oil pump outlet valve, reduce appearance and size and keep good manufacturability.
2nd, the fuel-displaced valve pocket of biasing of the present utility model for 4 valve circle week distribution equalizing structure, only open 1 during work, remaining
Blocked with sealing bolt.When occurring, delivery valve leakage is serious, when ball chamber interior walls are worn, can be exchanged out on the basis of former pump
Fuel tap ball room extends the service life of the oil well pump, reduces cost.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is biasing oil-release valve cover valve ball cavity configuration schematic diagram in the utility model.
1- pull bars, 2- tubing couplings, 3- tubing nipples, box cupling on 4- outer tubes, box cupling, the outer tubes of 6- first, 7- on 5- pump barrels
Pump barrel, 8- solid plungers, 9- outer tubes connection coupling, the outer tubes of 10- second, the top connection of 11- eccentrically arranged valve reducings, 12- biasing delivery valves
Under cover, the fuel-displaced valve balls of 13-, the fuel-displaced valve ball fixed seats of 14-, 15- fluid holes, 16- delivery valves sealing bolt, 17- eccentrically arranged valve reducings
Joint, 18- extension nipples, 19- pipe nipples box cupling, 20- oil-feeds valve ball, 21- oil-feed valve balls fixed seat, 22- oil-feeds valve bonnet, 23- enter
Fuel tap anchor tip, 24- valve ball chambers.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings：
As shown in figure 1, this eccentrically arranged valve solid plunger small displacement oil well pump is total including combination pump barrel, assembly for plunger, valve group
Into combination pump barrel passes through box cupling on outer tube 4 and the phase of the first outer tube 6 by the bottom connected pipes pipe nipple 3 of tubing coupling 2, tubing nipple 3
Even, the upper end of the second outer tube 10 is connected by outer tube connection coupling 9 with the first outer tube 6, the lower end of the second outer tube 10 and eccentrically arranged valve reducing
Top connection 11 is connected, and eccentrically arranged valve reducing top connection 11 is connected to biasing oil-release valve cover 12 upper end, and the upper end of pump barrel 7 on pump barrel by connecing
Hoop 5 is fixed, and the upper end of pump barrel 7 is fixed by box cupling on pump barrel 5, and box cupling 5 is evenly distributed fluid hole 15, the lower end of pump barrel 7 on pump barrel
It is connected on biasing oil-release valve cover 12；Solid plunger 8 is located at pump body, and upper end cylinder lever connecting rod 1 forms assembly for plunger, solid post
Plug 8 is back and forth run in pump barrel 7；Valve group assembly includes oil-feed valve assembly and fuel-displaced valve assembly, and fuel-displaced valve assembly includes eccentrically arranged valve
Reducing top connection 11, biasing oil-release valve cover 12, fuel-displaced valve ball 13, fuel-displaced valve ball fixed seat 14, delivery valve fixing bolt, delivery valve
Sealing bolt 16, eccentrically arranged valve reducing lower contact 17, as shown in Fig. 2 biasing uniform 4 valves of the lower end edge circumference of oil-release valve cover 12
Spherical cavity 24, the uniform 4 eccentric oil outlets in each bottom of valve ball chamber 24, each eccentric oil outlet penetrate biasing oil-release valve cover
12, and another mouthful of each eccentric oil outlet is arranged on the upper surface of biasing oil-release valve cover 12, biasing oil-release valve cover 12
There is internal thread centrally disposed plunger hole, the upper end of plunger hole, and the lower end of pump barrel 7 is connected by plunger hole with biasing oil-release valve cover 12.
Oil-feed valve assembly, which includes pipe nipple box cupling 19, oil-feed valve ball 20, oil-feed valve ball fixed seat 21, oil-feed valve bonnet 22, inlet valve, to be fixed and connects
First 23, oil-feed valve assembly is connected with fuel-displaced valve assembly by extension nipple 18.
Biasing oil-release valve cover 12 includes fuel-displaced valve ball 13, and the fuel-displaced lower end of valve ball 13 is fuel-displaced valve ball fixed seat 14, delivery valve
Ball fixed seat 14 is fixed in biasing oil-release valve cover 12 by delivery valve fixing bolt, biases the lower end of oil-release valve cover 12 and eccentrically arranged valve
Reducing lower contact 17 is connected；Oil-feed valve bonnet 22 includes oil-feed valve ball 20, and the lower end of oil-feed valve ball 20 is oil-feed valve ball fixed seat 21,
Oil-feed valve ball fixed seat 21 is fixed in oil-feed valve bonnet 22 by inlet valve anchor tip 23, oil-feed valve bonnet 22 and pipe nipple box cupling 19
It is connected.
3 valve ball chambers 24 are so, real in eccentrically arranged valve by the fit sealing of delivery valve sealing bolt 16 in the utility model
During stem plug small displacement oil pumping pump work, a valve ball chamber 24 works, and its excess-three valve ball chamber 24 does not work, and is sealed with delivery valve
Bolt 16 seals.When a valve ball chamber 24 damages, another valve ball chamber 24 is changed, to increase the service life.
Operation principle of the present utility model is：During upstroke, sucker rod drives pull bar 1 up, and pump cavity pressure reduces,
Oil-feed valve ball 20 is opened under differential pressure action, and crude oil flows into oil well pump pump chamber by inlet valve；In down stroke, sucker rod, which drives, to be drawn
Bar 1 is descending, and the rise of pump cavity pressure, fuel-displaced valve ball 13 is opened under differential pressure action, and crude oil enters oil pipe by biasing delivery valve
In.In the descending coda of plunger, plunger bottom enters in extension nipple 18, and now the bottom most position of plunger is less than delivery valve,
Delivery valve is in the peak of pump chamber, is constantly in the high air containing fluid of plunger base and can be moved to delivery valve bottom at this moment,
And as crude oil flows out oil pumping pump chamber.So as to reduce the gas content in oil well pump clearance volume, the pump efficiency of oil well pump is improved.
The utility model can be seen that inlet valve from overall structure can be fuel-displaced using the valve ball and valve bonnet for meeting flow
Valve ball 13 can not use and inlet valve identical valve ball due to being limited by casing diameter.But more conventional minor diameter oil well pump
Valve ball diameter has increased substantially.Calculate by design, in small displacement oil well pump, can not only be carried using biasing valve arrangement
High reliability of structure, and internal flow channel limitation is few, and liquid flowing resistance is small, and pump efficiency is high.
Claims (4)
- A kind of 1. eccentrically arranged valve solid plunger small displacement oil well pump, it is characterised in that：This eccentrically arranged valve solid plunger small displacement oil pumping Pump includes combination pump barrel, assembly for plunger, valve group assembly, and combination pump barrel is by tubing coupling（2）Bottom connected pipes pipe nipple（3）, oil Pipe pipe nipple（3）Pass through box cupling on outer tube（4）With the first outer tube（6）It is connected, the second outer tube（10）Upper end passes through outer tube connection coupling （9）With the first outer tube（6）It is connected, the second outer tube（10）Lower end and eccentrically arranged valve reducing top connection（11）It is connected, on eccentrically arranged valve reducing Joint（11）It is connected to biasing oil-release valve cover（12）Upper end, pump barrel（7）Upper end passes through box cupling on pump barrel（5）It is fixed, connect on pump barrel Hoop（5）It is evenly distributed fluid hole（15）, pump barrel（7）Lower end connection biasing oil-release valve cover（12）；Solid plunger（8）In pump barrel （7）Interior reciprocal operation, solid plunger（8）Upper end cylinder lever connecting rod（1）；Valve group assembly includes oil-feed valve assembly and fuel-displaced valve assembly, Fuel-displaced valve assembly includes eccentrically arranged valve reducing top connection（11）, biasing oil-release valve cover（12）, fuel-displaced valve ball（13）, fuel-displaced valve ball fixes Seat（14）, eccentrically arranged valve reducing lower contact（17）, bias oil-release valve cover（12）The uniform 4 valve ball chambers of lower end edge circumference（24）, Each valve ball chamber（24）The uniform 4 eccentric oil outlets in bottom, each eccentric oil outlet penetrate biasing oil-release valve cover（12）, and Another mouth of each eccentric oil outlet is arranged on biasing oil-release valve cover（12）Upper surface on, bias oil-release valve cover（12）In The heart sets plunger hole, and there are internal thread, pump barrel in the upper end of plunger hole（7）Lower end passes through plunger hole and biasing oil-release valve cover（12）Even Connect；Oil-feed valve assembly includes pipe nipple box cupling（19）, oil-feed valve ball（20）, oil-feed valve ball fixed seat（21）, oil-feed valve bonnet（22）, enter Fuel tap anchor tip（23）, oil-feed valve assembly and fuel-displaced valve assembly pass through extension nipple（18）It is connected.
- 2. eccentrically arranged valve solid plunger small displacement oil well pump according to claim 1, it is characterised in that：Described fuel-displaced valve ball （13）It is arranged on biasing oil-release valve cover（12）It is interior, fuel-displaced valve ball（13）Fall in fuel-displaced valve ball fixed seat（14）On, fuel-displaced valve ball is consolidated Reservation（14）Biasing oil-release valve cover is fixed on by delivery valve fixing bolt（12）In, bias oil-release valve cover（12）Lower end and biasing Valve reducing lower contact（17）It is connected；Oil-feed valve bonnet（22）Include oil-feed valve ball（20）, oil-feed valve ball（20）Fall in oil-feed valve ball Fixed seat（21）On, oil-feed valve ball fixed seat（21）Pass through inlet valve anchor tip（23）It is fixed on oil-feed valve bonnet（22）In, enter Fuel tap cover（22）With pipe nipple box cupling（19）It is connected.
- 3. eccentrically arranged valve solid plunger small displacement oil well pump according to claim 2, it is characterised in that：Described solid plunger （8）Outer surface and pump barrel（7）Outer surface is machined with anti-sand launder.
- 4. eccentrically arranged valve solid plunger small displacement oil well pump according to claim 3, it is characterised in that：4 described valve balls Chamber（24）In have 3 valve ball chambers（24）Pass through delivery valve sealing bolt（16）Fit sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721186601.1U CN207131557U (en) | 2017-09-16 | 2017-09-16 | A kind of eccentrically arranged valve solid plunger small displacement oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721186601.1U CN207131557U (en) | 2017-09-16 | 2017-09-16 | A kind of eccentrically arranged valve solid plunger small displacement oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207131557U true CN207131557U (en) | 2018-03-23 |
Family
ID=61638455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721186601.1U Expired - Fee Related CN207131557U (en) | 2017-09-16 | 2017-09-16 | A kind of eccentrically arranged valve solid plunger small displacement oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207131557U (en) |
-
2017
- 2017-09-16 CN CN201721186601.1U patent/CN207131557U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20180916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |