CN105888616A - Dual-action electro-hydraulic rodless oil extraction device - Google Patents
Dual-action electro-hydraulic rodless oil extraction device Download PDFInfo
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- CN105888616A CN105888616A CN201410804950.XA CN201410804950A CN105888616A CN 105888616 A CN105888616 A CN 105888616A CN 201410804950 A CN201410804950 A CN 201410804950A CN 105888616 A CN105888616 A CN 105888616A
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- 238000000605 extraction Methods 0.000 title claims abstract description 29
- 230000009977 dual effect Effects 0.000 title claims abstract description 10
- 239000003208 petroleum Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000446 fuel Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009355 double cropping Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 9
- 238000005086 pumping Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 69
- 239000010779 crude oil Substances 0.000 description 7
- 238000011900 installation process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000012224 working solution Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The invention discloses a dual-action electro-hydraulic rodless oil extraction device which comprises a motor, a transmission device, a hydraulic assembly and an oil conveying device. As a dual-action axial hydraulic pump structure is adopted, a liquid can be fed into a pump body or discharged out the bump body in the up-down stroke of the piston of the dual-action electro-hydraulic rodless oil extraction device, the electro-hydraulic rodless oil extraction device is a double oil feed and discharge device, a motor can operate stably in the up-down stroke of the piston, and moreover, the pumping efficiency of the device is doubled when being compared with that of a common oil pump; the structure of the dual-action electro-hydraulic rodless oil extraction device is simplified, and the performance is stable; on-ground equipment can be reduced, and thus the investment can be reduced.
Description
Technical field
The present invention relates to a kind of Rodless oil extraction device, belong to Rodless oil extraction equipment technical field, particularly a kind of
Double acting electric hydaulic Rodless oil extraction device.
Background technology
In petroleum industry, traditional oil production equipment is mainly had bar extracting device of oil, is pushed away by surface drive
Draw sucker rod thus drive oil well pump to move back and forth, reach oil to give rise to ground mesh from shaft bottom
's.Described surface drive mainly has beam pumping unit, belt type pumping unit and tower-type pumping unit,
The maximum drawback that this surface drive exists is: in installation process, workload is big, floor space is also big,
Also the problem that there will be rod and tube partial-wear in sucker rod running afterwards, after long-play, packing,
The accessories such as belt there will be abrasion, and later maintenance costly, will also result in crude oil leakage simultaneously, pollutes environment.
By retrieval, in order to overcome the deficiency of above technology, there is the multiple report about Rodless oil extraction device at present
Road, including hydraulic piston pump, electric submersible pump etc., wherein: hydraulic piston pump configuration is complicated, exchange system
Being placed in well, high jig frequency, short stroke, short sealing run, poor reliability, and working solution and production fluid
Needing to set up the separation equipment of working solution and production fluid on down-hole mixing, ground, investment is big, cost is high, dimension
Repair rate high；Electric submersible pump feed flow instability, fault rate height, bad adaptability, life-span are short.
Summary of the invention
It is an object of the invention to provide a kind of double acting electric hydaulic Rodless oil extraction device, it is owing to taking out
Beam hanger, the workload in installation process that the most not there are bar extracting device of oil is big, floor space big and takes out
Also the problem that there will be rod and tube partial-wear in beam hanger running afterwards；It uses dual action axial to hydraulic pump
Structure, thus, it is ensured that the piston of double acting electric hydaulic Rodless oil extraction device, in up-down stroke, all has liquid
Body enters the pump housing or liquid discharges the pump housing, is a kind of double oil-feed, double oil discharging device, it is ensured that motor is upper and lower at piston
Steadily operate during stroke, and realize doubling than common pumping efficiency of oil pump.
In order to reach object above, the technical solution adopted in the present invention is: a kind of double acting electric hydaulic without
Bar extracting device of oil, including motor, actuating device and hydraulic assembly and fuel delivery device.Actuating device includes main
Moving gear, driven gear, driven gear shaft, bearing, bearing holder (housing, cover), fixing bar and trace；Fixing bar
There are one or more.Driving gear fixes the axle connecting motor.Driven gear shaft connects highlight bar, the most prominent
Fix with driven gear shaft radial intersection bottom rod and be connected, in the centrage of its highlight bar and driven gear shaft
Heart line is vertical, and highlight bar head is radially outward from prominent head, the centrage of its highlight bar and prominent head centrage
Vertically, driven gear is fixing connects driven gear shaft, and driven gear shaft cooperates with bearing and is connected, bearing
Cooperating with bearing holder (housing, cover), in i.e. bearing is arranged on bearing holder (housing, cover), trace two is respectively cirque structure.
Hydraulic assembly uses dual action axial to hydraulic pump structure, and hydraulic assembly includes the pump housing, pump cover and piston, piston
Bar and four check valves；The pump housing i.e. hydraulic cylinder, cylinder bottom has central through hole, an oil-feed
Through hole, a fuel-displaced through hole；Pump cover i.e. hydraulic cylinder, pump cover has the through hole of an oil-feed, one go out
The through hole of oil；Leading to of oil-feed in the through hole that the through hole of the oil-feed in cylinder bottom is interior, fuel-displaced and on pump cover
In hole, in fuel-displaced through hole, it is respectively arranged with a check valve；Piston cooperates with piston rod and is connected, piston and liquid
Cylinder pressure cooperates, and in i.e. piston is arranged on hydraulic cylinder, piston rod cooperates with hydraulic cylinder, i.e. piston rod
Central through hole from cylinder bottom is stretched, passes through between the central through hole on piston rod and cylinder bottom
Sealing mechanism seals, and hydraulic cylinder cooperates with hydraulic cylinder, i.e. hydraulic cylinder and hydraulic cylinder passes through sealing ring
Being tightly connected, piston rod head has a radially connected hole, and its connecting hole is the blind hole of female thread structure, lives
Stopper rod cooperates with stud, i.e. of stud twists and creeps in connecting hole, its stud
This male thread forms screws with the female thread structure of connecting hole and is connected.In the through hole of the oil-feed in cylinder bottom
The flow direction of check valve be into, i.e. object can only flow to the pump housing through its check valve；Fuel-displaced in cylinder bottom
Through hole in the flow direction of check valve be, i.e. object can only flow out the pump housing through its check valve；On pump cover
The flow direction of the check valve in the through hole of oil-feed be into, i.e. object can only flow to the pump housing through its check valve；Pump cover
On fuel-displaced through hole in the flow direction of check valve be, i.e. object can only flow out the pump housing through its check valve.
Fuel delivery device includes two petroleum pipelines and an oily cylinder, and one is straight petroleum pipeline, and one is curved petroleum pipeline；Oil
The through hole of two oil-feeds, the joint of the connected pipes that mouth end is female thread structure of oil cylinder is had at cylinder the end.The most defeated
On the interface of the fuel-displaced through hole that one end of oil pipe is fixedly connected on pump cover, the other end of straight petroleum pipeline connects
Oil cylinder an oil-feed through hole interface on, thus, make the fuel-displaced through hole on pump cover, straight petroleum pipeline,
Oil cylinder communicates；On the interface of the fuel-displaced through hole that curved petroleum pipeline one end is fixedly connected in cylinder bottom, curved defeated
On the interface of the through hole that the other end of oil pipe connects another oil-feed of oil cylinder, thus, make in cylinder bottom
Fuel-displaced through hole, curved petroleum pipeline, oil cylinder communicate；The cirque structure that trace is one is enclosed within prominent head,
The cirque structure of the other end of trace is enclosed within stud, and the other end of stud emits with fixing spiral shell
Cooperate connection.One end fixed connection shaft bearing sleeve of fixing bar, the other end of fixing bar is fixing connects the pump housing.
Driving gear is helical gear, and driven gear is also helical gear, and driving gear coordinates with driven gear, two phases
Engage connection mutually.Double acting electric hydaulic Rodless oil extraction device also includes connecting rod and support bar, and connecting rod has
One or more, support bar has one or more.Connecting rod two ends are respectively fixedly connected with oil cylinder and pump cover,
Support bar two ends are respectively fixedly connected with motor and the pump housing.Cable one end reaches down-hole, is connected to the electricity of down-hole
On machine, the other end reach ground, connect power supply by power switch device.So, by connecting rod and
Motor, hydraulic assembly and actuating device thereof and fuel delivery device are interconnected to form the whole of a unification by support bar
Body structure is double acting electric hydaulic Rodless oil extraction device.So, by double acting electric hydaulic Rodless oil extraction
Joint on the oily cylinder of device cooperates with oil pipe and is tightly connected, i.e. the male thread forms of oil pipe and joint
Female thread structure screws connection；Double acting electric hydaulic Rodless oil extraction device is inserted into downhole oil by sleeve pipe
In Ceng, when motor switches on power, and motor is started working, drive piston by actuating device, make piston carry out
Linear reciprocating motion, when piston moves to cylinder bottom direction, in the oil reservoir of down-hole, crude oil is on pump cover
The check valve inspiration pump housing in the through hole of oil-feed, and the closed check valve in the fuel-displaced through hole on pump cover, with
Time, the check valve in the fuel-displaced through hole in cylinder bottom of the crude oil in the pump housing extrudes the pump housing, by defeated
Oil device enters in oil pipe, meanwhile, and the closed check valve in the through hole of the oil-feed in cylinder bottom；Work as piston
When moving to pump cover direction, the check valve in the through hole of crude oil oil-feed in cylinder bottom in the oil reservoir of down-hole
The inspiration pump housing, and the closed check valve in the fuel-displaced through hole in cylinder bottom, meanwhile, the crude oil in the pump housing
Check valve in fuel-displaced through hole on pump cover extrudes the pump housing, enters in oil pipe by fuel delivery device, with
Time, the closed check valve in the through hole of the oil-feed on pump cover.So, reciprocating linear is constantly carried out by piston
Motion, thus constantly by crude oil force feed oil inlet pipe, make crude oil in oil pipe constantly be discharged to ground.So, adopt
With double acting electric hydaulic Rodless oil extraction device, it is not owing to without sucker rod, the most there are bar oil recovery dress
The workload in installation process put is big, floor space big and also can in sucker rod running afterwards
The problem that rod and tube partial-wear occurs；Owing to have employed dual action axial to hydraulic pump structure, thus, it is ensured that double acting
The piston of electric hydaulic Rodless oil extraction device, in up-down stroke, all has liquid to enter the pump housing or liquid discharges the pump housing,
It is a kind of double oil-feed, double oil discharging device, it is ensured that motor steadily operates when piston up-down stroke, and realizes
Double than common pumping efficiency of oil pump.Thus reached the purpose of the present invention.
Owing to have employed technique scheme, the piston of its double acting electric hydaulic Rodless oil extraction device is up and down
In stroke, all there is liquid to enter the pump housing or liquid discharged the pump housing and ensured that motor steadily operates when piston up-down stroke,
Realize doubling than common pumping efficiency of oil pump；And simple in construction.
Accompanying drawing explanation
Fig. 1 is the structural representation of double acting electric hydaulic Rodless oil extraction device of the present invention.
Fig. 2 is the connection knot between double acting electric hydaulic Rodless oil extraction device of the present invention and oil pipe and power supply
Structure schematic diagram.
Fig. 3 is the structural representation of the hydraulic assembly of double acting electric hydaulic Rodless oil extraction device of the present invention.
In figure: 1, the joint of the connected pipes of oil cylinder；2, oil cylinder；3, connecting rod；4, hydraulic cylinder；5、
Piston and piston rod；6, piston rod；7, driven gear shaft；8, bearing；9, bearing holder (housing, cover)；10, actively
Gear；11, the axle of motor；12, motor；13, curved petroleum pipeline；14, straight petroleum pipeline；15, hydraulic cylinder
Lid；16, stud；17, trace；18, highlight bar head extends radially projecting head；19, prominent
Lift one's head；20, driven gear；21, cable；22, fixing bar；23, oil pipe；24, on and off switch dress
Put；25, power supply；26, the through hole of the oil-feed on pump cover；27, unidirectional in the through hole of the oil-feed on pump cover
Valve；28, sealing ring；29, the check valve in the through hole of the oil-feed in cylinder bottom；30, in cylinder bottom
The through hole of oil-feed；31, the radially connected hole of piston rod head；32, the fuel-displaced through hole in cylinder bottom；
33, the check valve in the fuel-displaced through hole in cylinder bottom；34, unidirectional in the fuel-displaced through hole on pump cover
Valve；35, the fuel-displaced through hole on pump cover；36, support bar.
Detailed description of the invention
The present invention is made with reference to Fig. 1, Fig. 2, Fig. 3.
A kind of double acting electric hydaulic Rodless oil extraction device, including motor 12, actuating device and hydraulic assembly with
And fuel delivery device.Actuating device include driving gear 10, driven gear 20, driven gear shaft 7, bearing 8,
Bearing holder (housing, cover) 9, fixing bar 22 and trace 17；Fixing bar is two.Driving gear is fixed and is connected motor
Axle 11.Driven gear shaft connects fixing with driven gear shaft radial intersection bottom highlight bar 19, i.e. highlight bar company
Connecing, the centrage of its highlight bar and driven gear shaft central axis, highlight bar head is radially outward from prominent
18, the centrage of its highlight bar and prominent head central axis, driven gear is fixing connects driven gear shaft,
Driven gear shaft cooperates with bearing and is connected, and bearing cooperates with bearing holder (housing, cover), i.e. bearing is arranged on bearing
In set, trace two is respectively cirque structure.Hydraulic assembly use dual action axial to hydraulic pump structure,
Hydraulic assembly includes the pump housing, pump cover and piston, piston rod and four check valves；The pump housing i.e. hydraulic cylinder 4, liquid
A central through hole, the through hole of an oil-feed, a fuel-displaced through hole is had at the bottom of cylinder pressure；Pump cover i.e. hydraulic cylinder
Lid 15, pump cover has the through hole of an oil-feed, a fuel-displaced through hole；The through hole of the oil-feed in cylinder bottom
It is respectively arranged with a check valve in the through hole that the through hole of the oil-feed in interior, fuel-displaced through hole and on pump cover is interior, fuel-displaced；
Piston 5 cooperates with piston rod 6 and is connected, and piston cooperates with hydraulic cylinder, i.e. piston is arranged on hydraulic pressure
In cylinder, piston rod cooperates with hydraulic cylinder, i.e. stretches in piston rod central through hole from cylinder bottom,
Sealed by sealing mechanism between central through hole on piston rod and cylinder bottom, hydraulic cylinder and hydraulic cylinder phase
Coordinate mutually, i.e. hydraulic cylinder is tightly connected by sealing ring 28 with hydraulic cylinder, and piston rod head has a radial direction
Connecting hole 31, its connecting hole is the blind hole of female thread structure, and piston rod cooperates with stud 16, i.e.
One of stud twists and creeps in connecting hole, and this male thread forms of its stud is interior with connecting hole
Helicitic texture screws connection；The flow direction of the check valve 29 in the through hole 30 of the oil-feed in cylinder bottom be into,
I.e. object can only flow to the pump housing through its check valve；The check valve 33 in fuel-displaced through hole 32 in cylinder bottom
The flow direction be, i.e. object can only through its check valve flow out the pump housing；In the through hole 26 of the oil-feed on pump cover
The flow direction of check valve 27 be into, i.e. object can only flow to the pump housing through its check valve；Fuel-displaced leading on pump cover
The flow direction of the check valve 24 in hole 35 is, i.e. object can only flow out the pump housing through its check valve.Oil transportation fills
Putting and include two petroleum pipelines and an oily cylinder, one is straight petroleum pipeline 14, and one is curved petroleum pipeline 13；Oil cylinder
The through hole of two oil-feeds, the joint 1 of the connected pipes that mouth end is female thread structure of oil cylinder 2 is had at the end.The most defeated
On the interface of the fuel-displaced through hole that one end of oil pipe is fixedly connected on pump cover, the other end of straight petroleum pipeline connects
Oil cylinder an oil-feed through hole interface on, thus, make the fuel-displaced through hole on pump cover, straight petroleum pipeline,
Oil cylinder communicates；On the interface of the fuel-displaced through hole that curved petroleum pipeline one end is fixedly connected in cylinder bottom, curved defeated
On the interface of the through hole that the other end of oil pipe connects another oil-feed of oil cylinder, thus, make in cylinder bottom
Fuel-displaced through hole, curved petroleum pipeline, oil cylinder communicate；The cirque structure that trace is one is enclosed within prominent head,
The cirque structure of the other end of trace is enclosed within stud, and the other end of stud emits with fixing spiral shell
Cooperate connection.One end fixed connection shaft bearing sleeve of fixing bar, the other end of fixing bar is fixing connects the pump housing.
Driving gear is helical gear, and driven gear is also helical gear, and driving gear coordinates with driven gear, two phases
Engage connection mutually.Double acting electric hydaulic Rodless oil extraction device also includes connecting rod and support bar, and connecting rod has
Two, support bar has two.Connecting rod 3 two ends are respectively fixedly connected with oil cylinder and pump cover, support bar 36 two ends
It is respectively fixedly connected with motor and the pump housing.Cable 21 one end reaches down-hole, is connected on the motor of down-hole, separately
One end reach ground, connect power supply 25 by power switch device 24.Double acting electric hydaulic Rodless oil extraction
Joint on the oily cylinder of device cooperates with oil pipe 23 and is tightly connected, i.e. the male thread forms of oil pipe and joint
Female thread structure screw connection；Its double acting electric hydaulic Rodless oil extraction device is inserted into down-hole by sleeve pipe
In oil reservoir.
Claims (2)
1. a double acting electric hydaulic Rodless oil extraction device, including motor, actuating device and hydraulic assembly with
And fuel delivery device；It is characterized in that: actuating device include driving gear, driven gear, driven gear shaft,
Bearing, bearing holder (housing, cover), fixing bar and trace；Fixing bar has one or more；Driving gear is fixing even
Connect the axle of motor；Driven gear shaft connects bottom highlight bar, i.e. highlight bar solid with driven gear shaft radial intersection
Fixed connect, the centrage of its highlight bar and driven gear shaft central axis, highlight bar head radially outward from
Prominent head, the centrage of its highlight bar and prominent head central axis, driven gear is fixing connects driven gear
Axle, driven gear shaft cooperates with bearing and is connected, and bearing cooperates with bearing holder (housing, cover), i.e. bearing is arranged on
In bearing holder (housing, cover), trace two is respectively cirque structure；Hydraulic assembly uses dual action axial to tie to hydraulic pump
Structure, hydraulic assembly includes the pump housing, pump cover and piston, piston rod and four check valves；The pump housing i.e. hydraulic cylinder,
A central through hole, the through hole of an oil-feed, a fuel-displaced through hole is had in cylinder bottom；Pump cover i.e. hydraulic pressure
Cylinder cap, pump cover has the through hole of an oil-feed, a fuel-displaced through hole；The through hole of the oil-feed in cylinder bottom
It is respectively arranged with a check valve in the through hole that the through hole of the oil-feed in interior, fuel-displaced through hole and on pump cover is interior, fuel-displaced；
Piston cooperates with piston rod and is connected, and piston cooperates with hydraulic cylinder, in i.e. piston is arranged on hydraulic cylinder,
Piston rod cooperates with hydraulic cylinder, i.e. stretches in piston rod central through hole from cylinder bottom, piston
Sealed by sealing mechanism between central through hole on bar and cylinder bottom, hydraulic cylinder and hydraulic cylinder phase interworking
Close, i.e. hydraulic cylinder is tightly connected by sealing ring with hydraulic cylinder, and piston rod head has a radially connected hole,
Its connecting hole is the blind hole of female thread structure, and piston rod cooperates with stud, i.e. the one of stud
Head is twisted and is crept in connecting hole, and this male thread forms of its stud screws with the female thread structure of connecting hole
Connect；The flow direction that check valve in the through hole of the oil-feed in cylinder bottom controls be into, i.e. object can only pass through
Its check valve flows to the pump housing；The flow direction that check valve in fuel-displaced through hole in cylinder bottom controls is, i.e.
Object can only flow out the pump housing through its check valve；The flow direction that check valve in the through hole of the oil-feed on pump cover controls
Be into, i.e. object can only flow to the pump housing through its check valve；The check valve control in fuel-displaced through hole on pump cover
The flow direction of system is, i.e. object can only flow out the pump housing through its check valve；Fuel delivery device includes two petroleum pipelines
With an oily cylinder, one is straight petroleum pipeline, and one is curved petroleum pipeline；The through hole of two oil-feeds is had at the bottom of oil cylinder,
The joint of the connected pipes that mouth end is female thread structure of oil cylinder；One end of straight petroleum pipeline is fixedly connected on pump cover
On fuel-displaced through hole interface on, the other end of straight petroleum pipeline is connected to the through hole of oil-feed of oil cylinder
On interface, thus, make the fuel-displaced through hole on pump cover, straight petroleum pipeline, oil cylinder communicate；Curved petroleum pipeline one end
On the interface of the fuel-displaced through hole being fixedly connected in cylinder bottom, the other end of curved petroleum pipeline connects oil cylinder
On the interface of the through hole of another oil-feed, thus, make the fuel-displaced through hole in cylinder bottom, curved petroleum pipeline,
Oil cylinder communicates；The cirque structure that trace is one is enclosed within prominent head, the annular of the other end of trace
Structure is enclosed within stud, and the other end of stud emits to cooperate with fixing spiral shell and is connected；Fixing bar
One end fixed connection shaft bearing sleeve, the other end of fixing bar is fixing connects the pump housing；Driving gear is helical gear, from
Moving gear is also helical gear, and driving gear coordinates with driven gear, and two engage each other connection；Double cropping electricity consumption
Hydrodynamic pressure Rodless oil extraction device also includes connecting rod and support bar, and connecting rod has one or more, support bar
There are one or more；Connecting rod two ends are respectively fixedly connected with oil cylinder and pump cover, and support bar two ends are fixed respectively
Connect motor and the pump housing.
Double acting electric hydaulic Rodless oil extraction device the most according to claim 1, it is characterised in that: electricity
Cable one end reaches down-hole, is connected on the motor of down-hole, the other end reach ground, pass through on and off switch
Device connects power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410804950.XA CN105888616A (en) | 2014-12-11 | 2014-12-11 | Dual-action electro-hydraulic rodless oil extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410804950.XA CN105888616A (en) | 2014-12-11 | 2014-12-11 | Dual-action electro-hydraulic rodless oil extraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105888616A true CN105888616A (en) | 2016-08-24 |
Family
ID=56700574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410804950.XA Pending CN105888616A (en) | 2014-12-11 | 2014-12-11 | Dual-action electro-hydraulic rodless oil extraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105888616A (en) |
-
2014
- 2014-12-11 CN CN201410804950.XA patent/CN105888616A/en active Pending
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Application publication date: 20160824 |