CN206845437U - One kind can salvage draining oil well pump - Google Patents
One kind can salvage draining oil well pump Download PDFInfo
- Publication number
- CN206845437U CN206845437U CN201720650807.9U CN201720650807U CN206845437U CN 206845437 U CN206845437 U CN 206845437U CN 201720650807 U CN201720650807 U CN 201720650807U CN 206845437 U CN206845437 U CN 206845437U
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- China
- Prior art keywords
- draining
- box cupling
- assembly
- pump
- pump barrel
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- Expired - Fee Related
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Abstract
The utility model discloses one kind can salvage draining oil well pump, including fixed valve assembly, pump barrel assembly, assembly for plunger and fishing head assembly, pump barrel assembly is made up of pump barrel box cupling, pump barrel and draining box cupling, draining box cupling is arranged on pump barrel lower end, fixed valve assembly is arranged on draining box cupling lower end, multiple oil leak holes are circumferentially drilled with draining box cupling, inlay inside the sealing shroud press-in draining box cupling of sealing ring, fishing head assembly is arranged on plunger lower end, and fishing head assembly is made up of expansion screw, spring and expansion screw overcoat.The utility model draining effect is good, there is multiple oil leak holes, and complete draining can be achieved during sucker rod string uphole well；Good sealing effect, due to being completed in factory, frock and operation function level are all higher, and all pass through before dispatching from the factory and suppress test, it is ensured that good sealing effect；Reusable, it is low to reuse expense, rises when reusing after well, only need to change sealing ring.
Description
Technical field
A kind of oil-well pump for extracting oil is the utility model is related to, draining oil well pump can be salvaged more particularly, to one kind.
Background technology
With the rapid development in oil field, safety and environmental protection problem is increasingly taken seriously.Particularly oil well repairing operation when
Sump oil emission problem, it is the arch-criminal of environmental pollution.Oil pump is to be driven crude oil in well to give rise to the normal of ground by oil pumper
Use downhole hardware.Common oil well pump is mainly made up of pump barrel, inlet valve, piston, the major part of drain four.According to oil well pump in well
Under fixed form, tubing pump and insert pump can be divided into.Tubing pump is also known as oil-line pump, and feature is outer barrel, bushing and inlet valve
Assemble and be attempted by rod-type pumping unit on ground, in oil pipe bottom elder generation lower going-into-well, then the piston equipped with dump valve with taking out
Beam hanger passes through in oil pipe tripping in pump.Bushing is processed into some sections by material, is lining into outer barrel.Piston is made of seamless steel pipe
Hollow circular cylinder, smooth outer surface carries annular ditch groove, and effect is to allow the sand grains into piston and sleeve clearances to be gathered in ditch
In groove, sand grains worn piston and bushing are prevented, and the oil deposited in groove plays a part of to lubricate piston face.
Inspection is to release the oil in oil pipe when pumping up pump, can use salvageable inlet valve（Standing valve）, by transferring roofbolt,
Allow the buckle of piston to bite the fishing head of inlet valve, inlet valve is proposed.But this pump is accounted for due to inlet valve fishing head
According to space in pump, make the dead space of pump and clearance volume big, easily influenceed by gas and reduce pump efficiency.Current most of tripping in
The well of tubing pump, it is that bleeder is installed in oil pipe bottom, oil in oil pipe is laid down by opening bleeder.In the well of the big pump of tripping in
In, because piston diameter is more than pipe aperture, it is impossible to which, by oil pipe tripping in piston, the method for use is first with oil pipe piston
Enter in well, rear tripping in rod string, the device that disjointed device is referred to as using one is docked with piston in pump.Tubing pump is simple in construction,
Cost is low, allows the pump footpath of tripping in big compared with insert pump under identical tubing diameter, thus discharge capacity is big.But oil must be removed when examining pump
Pipe, well-repairing work amount is big, therefore little suitable for lower-continuous mapping, the higher well of yield.When tubular type pumps up pump, bleeder is by oil pipe
In Residual oil leak into sleeve pipe, be easy to workover treatment.
At present, to remember letting out the fluid in tubing string during well operations and fall in well, Normal practice is the pump in oil well pump
Cylinder is lower to connect a shear pin type bleeder between box cupling and standing valve cover, draining is realized by pounding disconnected draining bolt.This kind of draining
Method mainly has the disadvantage that：1st, conventional bleeder, mostly copper draining bolt, and only 1.Needed during draining into oil pipe
Put into a few section sucker rods and copper bolt is pounded to disconnected, ability draining.Because crude oil is very sticky, the sucker rod of input can be produced very big
Resistance, cause the sucker rod falling speed of input slow, it is difficult to pound disconnected draining bolt.Even if draining bolt is pounded it is disconnected, due to only
One small oil leak hole, draining speed also can be very slow, and operating worker, which often can't wait to unsnatch the fluid in tubing string, plays well, causes
Still there is fluid in tubing string, do not have good draining effect.The 2nd, the oil well pump of traditional bleeder, bleeder and oil well pump are installed
Mostly individually buying, is installed together, due to operating condition and worker's technical merit disunity, the company of often resulting in again when going into the well
Meet place and seal bad even thread damage.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the utility model, which provides one kind, can salvage draining oil well pump, this reality
Adopted the following technical scheme that with new：One kind can salvage draining oil well pump, including fixed valve assembly, pump barrel assembly, plunger are total
It is made up of into fishing head assembly, the fixed valve assembly fixed valve base joint, fixed valve base, fixed valve ball and standing valve cover,
The assembly for plunger is that spiral is strike-off plunger（The patent No.：ZL200720159097.6）, outer plunger surface uses nickel-base alloy powder
Last surfacing, strengthen its anti-corrosion, anti-wear performance.The pump barrel assembly is made up of pump barrel box cupling, pump barrel and draining box cupling, the pump barrel
Inner surface, using carbon, nitrogen and boron permeation（Patent of invention number：ZL201310166047.0）Carry out surface Hardening Treatment, have anti-corrosion,
The advantages that wear-resisting, the draining box cupling substitutes box cupling under traditional pump barrel, installed in pump barrel lower end, the fixed valve assembly installation
In the draining box cupling lower end, multiple oil leak holes are circumferentially drilled with the draining box cupling, are set inside the draining box cupling
There is sealing shroud, sealing ring is inlaid with the sealing shroud, whole pump suppresses test before dispatching from the factory, and ensures sealing effectiveness.The salvaging
Head assembly is arranged on plunger lower end, and the fishing head assembly is made up of expansion screw, spring and expansion screw overcoat.
Preferably, the sealing ring is O-ring seals, and O-ring seal is mainly used in static seal and reciprocating movement sealing.With
When rotary movement seal, low speed rotary seal is only limitted to.Sealing ring is within the scope of operating pressure and certain temperature, tool
There is good sealing property, and sealing property can be improved automatically with the increase of pressure.Between gasket set and movement parts
Frictional force is small, and coefficient of friction will be stablized.Sealing ring resistance to corrosion is strong, non-aging, long working life, and wearability is good, mill
It can be compensated automatically to a certain extent after damage.It is simple in construction, using, it is easy to maintenance, sealing ring is had the longer life-span.It is described close
The number of seal is 4, has two in the upper and lower ends of oil leak hole, upper and lower ends are equipped with sealing ring and ensure upper and lower ends pair
Claim, it is more convenient during processing, also easily and the set-up time is saved during installation, it is multiple provided with two guarantee good sealing effects
Ensure, service life length.
It is further preferred that the material of the sealing ring is fluorubber, fluorubber has the chemical stability of height, resistance to height
Warm nature, resistance to ag(e)ing, it is one kind that medium-resistance is best in current all elastic body.The resistance to elevated temperatures of fluorubber and silicon rubber
Glue is the same, it may be said that is (hereinafter referred to as fluorine glue) best in current elastomer.Fluorubber can be long-term use of at 250 DEG C, fluorine
Rubber has the chemical stability of height, heat-resisting quantity, resistance to ag(e)ing, is that medium-resistance is best in current all elastic body
It is a kind of.Fluoroelastomer due to possess excellent anti-flammability, air-tightness, high temperature resistant, oil resistant, solvent resistant, it is resistance to combustion, chemically-resistant thing with it is resistance to
The property of weather, it is generally used in car industry, chemical process, space flight and many task industry.The one of value is mentioned that fluoroelastomer is close
Sealing is uniquely to use in high vacuum conditions, and below 1.33*10-7pa, other rubber all cannot be used for sealing.It is domestic
Outer outstanding manufacturer can be producing product.
Compared with prior art, the beneficial effects of the utility model are：1st, draining effect is good.Draining oil well pump, which can be salvaged, to be had
Multiple oil leak holes, expansion screw bottom need to only be screwed in sealing shroud and above carried, oil leak hole can be fully open, in sucker rod string uphole
Complete draining can be achieved during well, draining effect is good.2nd, good sealing effect.Draining oil well pump can be salvaged due to being in factory
Inside it is completed, frock and operation function level are all higher, and all pass through before dispatching from the factory and suppress test, it is ensured that sealing effectiveness
It is good.3rd, it is reusable, it is low to reuse expense.Draining oil pumping can be salvaged to pump up when reusing after well, only need to change sealing
Circle, expense are low.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of draining collar segments of the present utility model.
Fig. 3 is the structural representation of fixed valve assembly of the present utility model.
Wherein：1. pump barrel box cupling, 2. pump barrels, 3. assembly for plunger, 4. fishing head assemblies, 5. draining box cuplings, 6. sealing shrouds, 7.
Sealing ring, 8. fixed valve balls, 9. fixed valve bases, 10. standing valve covers, 11. fixed valve base joints, K. oil leak holes.
Embodiment
The utility model is further described below by non-limiting embodiment and with reference to accompanying drawing：
The first embodiment of the present utility model is given in figure：One kind can salvage draining oil well pump, including standing valve
Assembly, pump barrel assembly, assembly for plunger 3 and fishing head assembly 4, the fixed valve assembly is by fixed valve base joint 11, fixed valve base
9th, fixed valve ball 8 and standing valve cover 10 are formed, and the assembly for plunger 3 is that spiral is strike-off plunger（The patent No.：
ZL200720159097.6）, outer plunger surface uses Co-based alloy powder surfacing, strengthens its anti-corrosion, anti-wear performance.The pump barrel
Assembly is made up of pump barrel box cupling 1, pump barrel 2 and draining box cupling 5, the inner surface of pump barrel 2, using carbon, nitrogen and boron permeation（Patent of invention
Number：ZL201310166047.0）Surface Hardening Treatment is carried out, there is anti-corrosion, wear-resisting, the substitution of draining box cupling 5 biography
Box cupling under the pump barrel of system, installed in the lower end of pump barrel 2, the fixed valve assembly is arranged on the lower end of draining box cupling 5, is let out described
Multiple oil leak hole K are circumferentially drilled with oily box cupling 5, sealing shroud 6 are provided with inside the draining box cupling 5, on the sealing shroud 6
Sealing ring 7 is inlaid with, whole pump suppresses test before dispatching from the factory, and ensures sealing effectiveness.The fishing head assembly 4 is arranged on plunger lower end,
The fishing head assembly 4 is made up of expansion screw, spring and expansion screw overcoat.
Second of embodiment of the present utility model is given in figure：One kind can salvage draining oil well pump, including standing valve
Assembly, pump barrel assembly, assembly for plunger 3 and fishing head assembly 4, the fixed valve assembly is by fixed valve base joint 11, fixed valve base
9th, fixed valve ball 8 and standing valve cover 10 are formed, and the assembly for plunger 3 is that spiral is strike-off plunger（The patent No.：
ZL200720159097.6）, outer plunger surface uses Co-based alloy powder surfacing, strengthens its anti-corrosion, anti-wear performance.The pump barrel
Assembly is made up of pump barrel box cupling 1, pump barrel 2 and draining box cupling 5, the inner surface of pump barrel 2, using carbon, nitrogen and boron permeation（Patent of invention
Number：ZL201310166047.0）Surface Hardening Treatment is carried out, there is anti-corrosion, wear-resisting, the substitution of draining box cupling 5 biography
Box cupling under the pump barrel of system, installed in the lower end of pump barrel 2, the fixed valve assembly is arranged on the lower end of draining box cupling 5, is let out described
Multiple oil leak hole K are circumferentially drilled with oily box cupling 5, sealing shroud 6 are provided with inside the draining box cupling 5, on the sealing shroud 6
Sealing ring 7 is inlaid with, whole pump suppresses test before dispatching from the factory, and ensures sealing effectiveness.The fishing head assembly 4 is arranged on plunger lower end,
The fishing head assembly 4 is made up of expansion screw, spring and expansion screw overcoat.
The sealing ring 7 is O-ring seals, and O-ring seal is mainly used in static seal and reciprocating movement sealing.For rotating
During motion seal, low speed rotary seal is only limitted to.Sealing ring has good within the scope of operating pressure and certain temperature
Sealing property, and can improve sealing property automatically with the increase of pressure.Frictional force between gasket set and movement parts
Small, coefficient of friction will be stablized.Sealing ring resistance to corrosion is strong, non-aging, long working life, and wearability is good, after abrasion
It can compensate automatically to a certain extent.It is simple in construction, using, it is easy to maintenance, sealing ring is had the longer life-span.The sealing ring
Number is 4, has two in the upper and lower ends of oil leak hole, upper and lower ends are equipped with sealing ring and ensure that upper and lower ends are symmetrical, add
Man-hour is more convenient, also easily and saves the set-up time during installation, provided with two guarantee good sealing effects, multi-ensuring,
Service life is grown.
The third embodiment of the present utility model is given in figure：One kind can salvage draining oil well pump, including standing valve
Assembly, pump barrel assembly, assembly for plunger 3 and fishing head assembly 4, the fixed valve assembly is by fixed valve base joint 11, fixed valve base
9th, fixed valve ball 8 and standing valve cover 10 are formed, and the assembly for plunger 3 is that spiral is strike-off plunger（The patent No.：
ZL200720159097.6）, outer plunger surface uses Co-based alloy powder surfacing, strengthens its anti-corrosion, anti-wear performance.The pump barrel
Assembly is made up of pump barrel box cupling 1, pump barrel 2 and draining box cupling 5, the inner surface of pump barrel 2, using carbon, nitrogen and boron permeation（Patent of invention
Number：ZL201310166047.0）Surface Hardening Treatment is carried out, there is anti-corrosion, wear-resisting, the substitution of draining box cupling 5 biography
Box cupling under the pump barrel of system, installed in the lower end of pump barrel 2, the fixed valve assembly is arranged on the lower end of draining box cupling 5, is let out described
Multiple oil leak hole K are circumferentially drilled with oily box cupling 5, sealing shroud 6 are provided with inside the draining box cupling 5, on the sealing shroud 6
Sealing ring 7 is inlaid with, whole pump suppresses test before dispatching from the factory, and ensures sealing effectiveness.The fishing head assembly 4 is arranged on plunger lower end,
The fishing head assembly 4 is made up of expansion screw, spring and expansion screw overcoat.
The material of the sealing ring 7 is fluorubber, and fluorubber has a chemical stability of height, and heat-resisting quantity is ageing-resistant
Property, it is one kind that medium-resistance is best in current all elastic body.The resistance to elevated temperatures of fluorubber, can be with as silicon rubber
Say it is (hereinafter referred to as fluorine glue) best in current elastomer.Fluorubber can be long-term use of at 250 DEG C, and fluorubber has height
Chemical stability, heat-resisting quantity, resistance to ag(e)ing, be one kind that medium-resistance is best in current all elastic body.Fluorine elasticity
Body due to possessing the property of excellent anti-flammability, air-tightness, high temperature resistant, oil resistant, solvent resistant, resistance to combustion, chemically-resistant thing and weatherability,
It is generally used in car industry, chemical process, space flight and many task industry.The one of value is mentioned that fluoroelastomer seal is unique energy
Use in high vacuum conditions, below 1.33*10-7pa, other rubber all cannot be used for sealing.Outstanding production both at home and abroad
Commercial city can be producing product.
The 4th kind of embodiment of the present utility model is given in figure：One kind can salvage draining oil well pump, including standing valve
Assembly, pump barrel assembly, assembly for plunger 3 and fishing head assembly 4, the fixed valve assembly is by fixed valve base joint 11, fixed valve base
9th, fixed valve ball 8 and standing valve cover 10 are formed, and the assembly for plunger 3 is that spiral is strike-off plunger（The patent No.：
ZL200720159097.6）, outer plunger surface uses Co-based alloy powder surfacing, strengthens its anti-corrosion, anti-wear performance.The pump barrel
Assembly is made up of pump barrel box cupling 1, pump barrel 2 and draining box cupling 5, the inner surface of pump barrel 2, using carbon, nitrogen and boron permeation（Patent of invention
Number：ZL201310166047.0）Surface Hardening Treatment is carried out, there is anti-corrosion, wear-resisting, the substitution of draining box cupling 5 biography
Box cupling under the pump barrel of system, installed in the lower end of pump barrel 2, the fixed valve assembly is arranged on the lower end of draining box cupling 5, is let out described
Multiple oil leak hole K are circumferentially drilled with oily box cupling 5, sealing shroud 6 are provided with inside the draining box cupling 5, on the sealing shroud 6
Sealing ring 7 is inlaid with, whole pump suppresses test before dispatching from the factory, and ensures sealing effectiveness.The fishing head assembly 4 is arranged on plunger lower end,
The fishing head assembly 4 is made up of expansion screw, spring and expansion screw overcoat.
The sealing ring 7 is O-ring seals, and O-ring seal is mainly used in static seal and reciprocating movement sealing.For rotating
During motion seal, low speed rotary seal is only limitted to.Sealing ring has good within the scope of operating pressure and certain temperature
Sealing property, and can improve sealing property automatically with the increase of pressure.Frictional force between gasket set and movement parts
Small, coefficient of friction will be stablized.Sealing ring resistance to corrosion is strong, non-aging, long working life, and wearability is good, after abrasion
It can compensate automatically to a certain extent.It is simple in construction, using, it is easy to maintenance, sealing ring is had the longer life-span.The sealing ring
Number is 4, has two in the upper and lower ends of oil leak hole, upper and lower ends are equipped with sealing ring and ensure that upper and lower ends are symmetrical, add
Man-hour is more convenient, also easily and saves the set-up time during installation, provided with two guarantee good sealing effects, multi-ensuring,
Service life is grown.
The material of the sealing ring 7 is fluorubber, and fluorubber has a chemical stability of height, and heat-resisting quantity is ageing-resistant
Property, it is one kind that medium-resistance is best in current all elastic body.The resistance to elevated temperatures of fluorubber, can be with as silicon rubber
Say it is (hereinafter referred to as fluorine glue) best in current elastomer.Fluorubber can be long-term use of at 250 DEG C, and fluorubber has height
Chemical stability, heat-resisting quantity, resistance to ag(e)ing, be one kind that medium-resistance is best in current all elastic body.Fluorine elasticity
Body due to possessing the property of excellent anti-flammability, air-tightness, high temperature resistant, oil resistant, solvent resistant, resistance to combustion, chemically-resistant thing and weatherability,
It is generally used in car industry, chemical process, space flight and many task industry.The one of value is mentioned that fluoroelastomer seal is unique energy
Use in high vacuum conditions, below 1.33*10-7pa, other rubber all cannot be used for sealing.Outstanding production both at home and abroad
Commercial city can be producing product.
Operation principle：Assembly for plunger 3 is extracted out pump barrel 2 when going into the well together with fishing head assembly 4, is put aside.Pump barrel
Precalculated position in the connected pipes tripping in oil well of box cupling 1, delivery connection connecting with pumping rod in oil pipe tripping in pump barrel 2 by touching on plunger
Bottom, can normally it be pumped after above carrying dead space.When playing well, sucker rod is touched together with assembly for plunger 3 and the decentralization of fishing head assembly 4
Bottom, rod string 5~6 is rotated between up time and is enclosed, expansion screw lower thread can be screwed among sealing shroud 6 under spring pressure effect
Screw thread, above carry rod string, you can sealing shroud 6 is departed from draining box cupling 5, oil leak hole K exposes, and the fluid in tubing string is from oil leak hole
Oil well is leaked into K, reaches the effect of draining.
Above-described embodiment elaborates to the utility model.Certainly, described above is not to limit of the present utility model
System, the utility model are also not limited to above-mentioned example, and person skilled is made in essential scope of the present utility model
Change, remodeling, addition are reduced, replaced, and fall within the scope of protection of the utility model.
Claims (3)
1. one kind can salvage draining oil well pump, including fixed valve assembly, pump barrel assembly, assembly for plunger（3）With fishing head assembly
（4）, it is characterised in that：The pump barrel assembly is by pump barrel box cupling（1）, pump barrel（2）With draining box cupling（5）Composition, the draining connect
Hoop（5）Installed in pump barrel（2）Lower end, the fixed valve assembly are arranged on the draining box cupling（5）Lower end, in the draining box cupling
（5）On be circumferentially drilled with multiple oil leak holes（K）, in the draining box cupling（5）Inside is provided with sealing shroud（6）, in the sealing shroud
（6）On be inlaid with sealing ring（7）, the fishing head assembly（4）Installed in plunger lower end, the fishing head assembly（4）By stretching
Screw rod, spring and expansion screw overcoat are formed.
2. according to claim 1 salvage draining oil well pump, it is characterised in that：The sealing ring（7）Sealed for O shapes
Circle, the sealing ring（7）Number be 4, in oil leak hole（K）Upper and lower ends have two.
3. according to claim 1 or 2 salvage draining oil well pump, it is characterised in that：The sealing ring（7）Material be
Fluorubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720650807.9U CN206845437U (en) | 2017-06-07 | 2017-06-07 | One kind can salvage draining oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720650807.9U CN206845437U (en) | 2017-06-07 | 2017-06-07 | One kind can salvage draining oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206845437U true CN206845437U (en) | 2018-01-05 |
Family
ID=60798772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720650807.9U Expired - Fee Related CN206845437U (en) | 2017-06-07 | 2017-06-07 | One kind can salvage draining oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206845437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999595A (en) * | 2018-07-23 | 2018-12-14 | 中国石油天然气股份有限公司 | A kind of oil well pump is just suppressing draining technique |
-
2017
- 2017-06-07 CN CN201720650807.9U patent/CN206845437U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999595A (en) * | 2018-07-23 | 2018-12-14 | 中国石油天然气股份有限公司 | A kind of oil well pump is just suppressing draining technique |
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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: 20180105 Termination date: 20200607 |
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| CF01 | Termination of patent right due to non-payment of annual fee |