CN105422052B - A kind of beam pumping unit - Google Patents
A kind of beam pumping unit Download PDFInfo
- Publication number
- CN105422052B CN105422052B CN201510978674.3A CN201510978674A CN105422052B CN 105422052 B CN105422052 B CN 105422052B CN 201510978674 A CN201510978674 A CN 201510978674A CN 105422052 B CN105422052 B CN 105422052B
- Authority
- CN
- China
- Prior art keywords
- indirect
- balance
- equalizer pulley
- walking beam
- wire rope
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 241001023788 Cyttus traversi Species 0.000 claims abstract description 21
- 230000008450 motivation Effects 0.000 claims abstract description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims description 5
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 241000283074 Equus asinus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
- E21B43/127—Adaptations of walking-beam pump systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/14—Counterbalancing
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Rehabilitation Tools (AREA)
Abstract
The present invention relates to field of petroleum machinery, and in particular to a kind of beam pumping unit；Including pedestal, A-frame, walking beam, preceding horse head, control cabinet and steel wire rope, it is characterised in that：The rotor of the electric rotating motivation is equipped with indirect equalizer pulley group, dynamic equilibrium cam, the preceding horse head front end is equipped with indirect balancing front-ends connector, the indirect balancing front-ends connector connects the indirect equalizer pulley group right end, the walking beam rear end is equipped with balance backend connector indirectly, and the indirect balance backend connector connects the indirect equalizer pulley group left end.The double balance apparatus structure that the present invention passes through indirect balanced structure and dynamic balance structure so that the energy consumption of pumping unit falls to the 30%~50% of original oil production equipment；Electric energy can be saved, and oil recovery efficiency can be effectively improved.
Description
Technical field
The present invention relates to field of petroleum machinery, and in particular to a kind of beam pumping unit.
Background technology
Oil extraction in oil field lifting equipment is based on beam pumping unit in the world at present, screw pump, electric pump, tower shelf type oil pumping machine
, supplemented by linear motor oil pumping machine.Beam pumping unit uses the lever principle in theory of mechanics, is set in the tail portion of pumping unit
Four-bar mechanism has been counted, by motor driving reducer, circular motion has been changed into the straight reciprocating motion of sucker rod, it is real
The purpose of oil pumping is showed.
However beam pumping unit does not all balance the weight of fluid column, only fluid column regardless of the oil production method of sample
Weight is divided into pre-and-post equalization and forms alternating load；This balance mode belongs to indirect balance mode, retarder and four-bar mechanism
Itself energy consumption reach 15%-25% between, that there is mechanical wears is big, increases energy consumption, the problems such as oil recovery efficiency is low.
Invention content
In order to solve technical problem present in background above technology, the present invention provides a kind of beam pumping unit, structure
Rationally, energy consumption is small, energy conservation and environmental protection, can effectively improve oil recovery efficiency.
For the above-mentioned technical problem of solution, the present invention takes following technical scheme：
A kind of beam pumping unit, including pedestal（1）, A-frame（2）, walking beam（4）, preceding horse head（5）, control cabinet（22）
And steel wire rope, the pedestal（1）It is equipped with electric rotating motivation（15）, the electric rotating motivation（15）Positioned at pedestal（1）Before
End, A-frame（2）Lower central position；The A-frame（2）Top is equipped with centre bearing（3）, which is provided with walking beam
（4）, the walking beam（4）Tail portion be equipped with counterweight block（9）, the walking beam（4）Front end is equipped with preceding horse head（5）, the preceding donkey
Head（5）It is equipped with steel wire rope, the steel wire rope is equipped with polished rod eye（7）With sucker rod（8）, the polished rod eye（7）With sucker rod（8）
It is connected by steel wire rope；It is characterized in that：The electric rotating motivation（15）Rotor be equipped with indirect equalizer pulley group（16）, it is dynamic
State equilibrium cam（17）, the preceding horse head（5）Front end is equipped with indirect balancing front-ends connector（18）, the indirect balancing front-ends company
Connect device（18）Connect the indirect equalizer pulley group（16）Right end, the walking beam（4）Rear end is equipped with balance backend connector indirectly
（20）, the indirect balance backend connector（20）Connect the indirect equalizer pulley group（16）Left end.
The walking beam（4）Two sides of tail is equipped with pull rod（10）, the walking beam（4）Lower section is equipped with balance guide rail（11）, described
Balance guide rail（11）With the walking beam（4）Pass through two lateral bracing struts（10）Connection；The balance guide rail（11）Tail portion be equipped with galassing
Weigh pulley（12）, the balance guide rail（11）Front end be equipped with equalizer pulley（14）, the balance guide rail（11）It is equipped with above flat
Weigh block（13）, the balance weight（13）Right side and the equalizer pulley（14）Pass on left steel wire rope connection, the balance weight
（13）Left side and the equalizer pulley（14）Right side is connected by steel wire rope；The heavy equalizer pulley（12）It is moved with described in left side
State equilibrium cam（17）Right side is connected by steel wire rope, the equalizer pulley（14）Right side and the dynamic equilibrium cam（17）It is left
Side is connected by steel wire rope.
The indirect equalizer pulley group（16）At least 2 equalizer pulleys alluded to above, the indirect equalizer pulley group
（16）With the dynamic equilibrium cam（17）Central shaft it is consistent；The preceding horse head（5）Head is arc-shaped, after the indirect balance
Terminal adapter（20）Positioned at the pull rod（10）Before, the counterweight block（9）Section it is rounded.
The pull rod（10）Length be not more than the A-frame（2）Height, the balance guide rail（11）With it is described
Walking beam（4）Keeping parallelism state, the balance weight（13）In the balance guide rail（11）Pull rod（10）It is slided with balance junction
Wheel（14）Between；The heavy equalizer pulley（12）With the counterweight block（9）Center point-blank, galassing weighing apparatus is slided
Wheel（12）Weight be more than the equalizer pulley（14）Weight.
The control cabinet（22）Including control panel layer, device layer, control panel is equipped with button, knob, liquid crystal display,
Device layer is equipped with balanced adjustment module, frequency converter, remote communication module.
The present invention provides a kind of beam pumping unit, reasonable for structure, energy consumption is small, energy conservation and environmental protection, can effectively improve oil recovery
Efficiency.The beneficial effects of the invention are as follows：
1, the present invention passes through the indirect balancing front-ends connector（18）, the indirect balance backend connector（20）, institute
State indirect equalizer pulley group（16）And the counterweight block（9）Form indirect balanced structure；The balance guide rail（11）, galassing
Weigh pulley（12）, balance weight（13）, equalizer pulley（14）And dynamic equilibrium cam（17）A dynamic is formed by steel wire rope
Balanced structure.By the double balance apparatus structure of above-mentioned indirect balanced structure and dynamic balance structure, alternating load is reduced
Magnitude difference so that the energy consumption of pumping unit falls to the 30%~50% of original oil production equipment；Electric energy can be saved, and can
Effectively improve oil recovery efficiency.
（Four）Description of the drawings：
By the description carried out below in conjunction with the accompanying drawings to exemplary embodiment, above-mentioned purpose of the invention and feature will become
It must understand and it can be readily appreciated that wherein：
Fig. 1 shows a kind of beam pumping unit side structure schematic diagram for the embodiment of the present invention；
Fig. 2 shows structural schematic diagram behind a kind of beam pumping unit for the embodiment of the present invention；
Reference numeral is：Pedestal 1, A-frame 2, centre bearing 3, walking beam 4, preceding horse head 5, polished rod eye 7, oil pumping
Bar 8, counterweight block 9, pull rod 10, balance guide rail 11, weight equalizer pulley 12, balance weight 13, equalizer pulley 14, rotation
After motor 15, indirect equalizer pulley group 16, dynamic equilibrium cam 17, indirect balancing front-ends connector 18, indirect balance
Terminal adapter 20, control cabinet 22.
（Five）Specific implementation mode：
（Embodiment 1）
Fig. 1 shows a kind of beam pumping unit side structure schematic diagram for the embodiment of the present invention；Fig. 2 is shown
For structural schematic diagram behind a kind of beam pumping unit of the embodiment of the present invention.
The present embodiment is a kind of beam pumping unit, shown in Fig. 1-2, including pedestal（1）, A-frame（2）, walking beam
（4）, preceding horse head（5）, control cabinet（22）And steel wire rope, the pedestal（1）It is equipped with electric rotating motivation（15）, the electric rotating
Motivation（15）Positioned at pedestal（1）Front end, A-frame（2）Lower central position；The A-frame（2）Top is equipped with center
Bearing（3）, which is provided with walking beam（4）, the walking beam（4）Tail portion be equipped with counterweight block（9）, the walking beam（4）Front end is set
There is preceding horse head（5）, the preceding horse head（5）It is equipped with steel wire rope, the steel wire rope is equipped with polished rod eye（7）With sucker rod（8）, described
Polished rod eye（7）With sucker rod（8）It is connected by steel wire rope；It is characterized in that：The electric rotating motivation（15）Rotor be equipped with
Indirect equalizer pulley group（16）, dynamic equilibrium cam（17）, the preceding horse head（5）Front end is equipped with indirect balancing front-ends connector
（18）, the indirect balancing front-ends connector（18）Connect the indirect equalizer pulley group（16）Right end, the walking beam（4）Rear end
Equipped with indirect balance backend connector（20）, the indirect balance backend connector（20）Connect the indirect equalizer pulley group
（16）Left end；The indirect balancing front-ends connector（18）, the indirect balance backend connector（20）, the indirect balance slides
Wheel group（16）And the counterweight block（9）Form an indirect balanced structure.
In the present embodiment, the walking beam（4）Two sides of tail is equipped with pull rod（10）, the walking beam（4）Lower section is equipped with balance and leads
Rail（11）, the balance guide rail（11）With the walking beam（4）Pass through two lateral bracing struts（10）Connection；The balance guide rail（11）Tail
Portion is equipped with weight equalizer pulley（12）, the balance guide rail（11）Front end be equipped with equalizer pulley（14）, the balance guide rail（11）
It is equipped with balance weight above（13）, the balance weight（13）Right side and the equalizer pulley（14）Steel wire rope connection is passed on left,
The balance weight（13）Left side and the equalizer pulley（14）Right side is connected by steel wire rope；The heavy equalizer pulley（12）It is left
Side and the dynamic equilibrium cam（17）Right side is connected by steel wire rope, the equalizer pulley（14）It is put down with the dynamic on right side
Weigh cam（17）Pass on left steel wire rope connection；The balance guide rail（11）, weight equalizer pulley（12）, balance weight（13）, balance
Pulley（14）And dynamic equilibrium cam（17）A dynamic balance structure is formed by steel wire rope.
In the present embodiment, the indirect equalizer pulley group（16）At least 2 equalizer pulleys alluded to above, it is described indirect
Equalizer pulley group（16）With the dynamic equilibrium cam（17）Central shaft it is consistent；The preceding horse head（5）Head is arc-shaped, described
Balance backend connector indirectly（20）Positioned at the pull rod（10）Before, the counterweight block（9）Section it is rounded.
In the present embodiment, the pull rod（10）Length be not more than the A-frame（2）Height, the balance guide rail
（11）With the walking beam（4）Keeping parallelism state, the balance weight（13）In the balance guide rail（11）Pull rod（10）Connection
Place and equalizer pulley（14）Between；The heavy equalizer pulley（12）With the counterweight block（9）Center point-blank, institute
State weight equalizer pulley（12）Weight be more than the equalizer pulley（14）Weight.
In the present embodiment, the control cabinet（22）Including control panel layer, device layer, control panel be equipped with button, knob,
Liquid crystal display, device layer are equipped with frequency converter, remote communication module.
In the present embodiment, operation principle：The indirect balancing front-ends connector described first（18）, the indirect balance rear end
Connector（20）, the indirect equalizer pulley group（16）And the counterweight block（9）Form an indirect balanced structure；So that
Sucker rod（8）Remain that vertical force, pumping unit keep active balance in a quiescent state.It is described when pumping unit works
Control cabinet（22）Make electric rotating motivation by frequency converter（15）Forward and backward, to drive the walking beam（4）, preceding horse head（5）, steel
Cord, polished rod eye（7）With sucker rod（8）It pumps and realizes the purpose of oil pumping.
The preceding horse head（5）Head is arc-shaped to make sucker rod（8）Vertical force is remained, when the preceding horse head (5）It raises up
When, the balance guide rail（11）On balance weight（13）Pass through dynamic equilibrium cam（17）Quickly by balance weight（13）It moves to flat
Weigh guide rail（11）Tail portion so that sucker rod（8）Remain vertical force；When the preceding horse head（5）When downlink, the balance is led
Rail（11）On balance weight（13）Pass through dynamic equilibrium cam（17）Quickly by balance weight（13）Move to balance guide rail（11）'s
Front so that sucker rod（8）Vertical force is remained, to realize dynamic equilibrium；Alternating load magnitude difference is reduced, is made
The energy consumption for obtaining pumping unit falls to the 30%~50% of original oil production equipment；Electric energy can be saved, and can effectively improve and adopt
Oily efficiency.
Liquid crystal display can show motor of oil extractor work relevant parameter, and remote communication module is realization and host computer
Or between network information conversion and transmission wireless terminal, by radio communication network carry out data transmission.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.And these
The obvious changes or variations that the connotation for belonging to of the invention is extended out still fall within protection scope of the present invention.
Claims (4)
1. a kind of beam pumping unit, including pedestal（1）, A-frame（2）, walking beam（4）, preceding horse head（5）, control cabinet（22）With
And steel wire rope, the pedestal（1）It is equipped with electric rotating motivation（15）, the electric rotating motivation（15）Positioned at pedestal（1）Front end,
A-frame（2）Lower central position；The A-frame（2）Top is equipped with centre bearing（3）, which is provided with walking beam（4）, institute
State walking beam（4）Tail portion be equipped with counterweight block（9）, the walking beam（4）Front end is equipped with preceding horse head（5）, the preceding horse head（5）On
Equipped with steel wire rope, the steel wire rope is equipped with polished rod eye（7）With sucker rod（8）, the polished rod eye（7）With sucker rod（8）Pass through steel
Cord connects；It is characterized in that：The electric rotating motivation（15）Rotor be equipped with indirect equalizer pulley group（16）, dynamic equilibrium
Cam（17）, the preceding horse head（5）Front end is equipped with indirect balancing front-ends connector（18）, the indirect balancing front-ends connector
（18）Connect the indirect equalizer pulley group（16）Right end, the walking beam（4）Rear end is equipped with balance backend connector indirectly（20）,
The indirect balance backend connector（20）Connect the indirect equalizer pulley group（16）Left end；The walking beam（4）Two sides of tail
Equipped with pull rod（10）, the walking beam（4）Lower section is equipped with balance guide rail（11）, the balance guide rail（11）With the walking beam（4）It is logical
Cross two lateral bracing struts（10）Connection；The balance guide rail（11）Tail portion be equipped with weight equalizer pulley（12）, the balance guide rail（11）
Front end be equipped with equalizer pulley（14）, the balance guide rail（11）It is equipped with balance weight above（13）, the balance weight（13）The right side
Side and the equalizer pulley（14）Pass on left steel wire rope connection, the balance weight（13）Left side and the equalizer pulley（14）
Right side is connected by steel wire rope；The heavy equalizer pulley（12）Left side and the dynamic equilibrium cam（17）Right side passes through steel wire rope
Connection, the equalizer pulley（14）Right side with the dynamic equilibrium cam（17）Pass on left steel wire rope connection.
2. a kind of beam pumping unit according to claim 1, it is characterised in that：The indirect equalizer pulley group（16）
At least 2 equalizer pulleys alluded to above, the indirect equalizer pulley group（16）With the dynamic equilibrium cam（17）Center
Axis is consistent；The preceding horse head（5）Head is arc-shaped, the indirect balance backend connector（20）Positioned at the pull rod（10）Before
Face, the counterweight block（9）Section it is rounded.
3. a kind of beam pumping unit according to claim 1 or 2, it is characterised in that：The pull rod（10）Length
Degree is not more than the A-frame（2）Height, the balance guide rail（11）With the walking beam（4）Keeping parallelism state, it is described
Balance weight（13）In the balance guide rail（11）Pull rod（10）Junction and equalizer pulley（14）Between；The heavy equalizer pulley
（12）With the counterweight block（9）Center point-blank, the heavy equalizer pulley（12）Weight be more than the balance
Pulley（14）Weight.
4. according to a kind of beam pumping unit described in claim 1, it is characterised in that：The control cabinet（22）Including control
Panel layer, device layer, control panel be equipped with button, knob, liquid crystal display, device layer be equipped with balanced adjustment module, frequency converter,
Remote communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510978674.3A CN105422052B (en) | 2015-12-24 | 2015-12-24 | A kind of beam pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510978674.3A CN105422052B (en) | 2015-12-24 | 2015-12-24 | A kind of beam pumping unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422052A CN105422052A (en) | 2016-03-23 |
| CN105422052B true CN105422052B (en) | 2018-07-13 |
Family
ID=55500547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510978674.3A Active CN105422052B (en) | 2015-12-24 | 2015-12-24 | A kind of beam pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422052B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2204055C2 (en) * | 2000-11-08 | 2003-05-10 | Богатырев Павел Иванович | Pumping unit for two wells |
| CN101059071A (en) * | 2006-12-22 | 2007-10-24 | 杨帆 | Lifting weight balance beam type oil pump |
| CN101298833A (en) * | 2007-07-13 | 2008-11-05 | 金成群 | Balance type beam-pumping unit |
| CN101307684A (en) * | 2008-05-21 | 2008-11-19 | 张保国 | Hanging pendulum type beam balancing energy-saving oil pumping machine |
| CN101446185A (en) * | 2007-11-26 | 2009-06-03 | 大庆油田有限责任公司 | Direct balance energy-saving beam-pumping unit |
| CN203008871U (en) * | 2013-01-14 | 2013-06-19 | 鲁会策 | Balance beam-pumping unit |
| CN204225857U (en) * | 2014-11-24 | 2015-03-25 | 大庆派司石油科技有限公司 | Two horse head flexible drawing direct drive pumping unit |
| CN205382920U (en) * | 2015-12-24 | 2016-07-13 | 一能电气有限公司 | Beam -pumping unit |
-
2015
- 2015-12-24 CN CN201510978674.3A patent/CN105422052B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2204055C2 (en) * | 2000-11-08 | 2003-05-10 | Богатырев Павел Иванович | Pumping unit for two wells |
| CN101059071A (en) * | 2006-12-22 | 2007-10-24 | 杨帆 | Lifting weight balance beam type oil pump |
| CN101298833A (en) * | 2007-07-13 | 2008-11-05 | 金成群 | Balance type beam-pumping unit |
| CN101446185A (en) * | 2007-11-26 | 2009-06-03 | 大庆油田有限责任公司 | Direct balance energy-saving beam-pumping unit |
| CN101307684A (en) * | 2008-05-21 | 2008-11-19 | 张保国 | Hanging pendulum type beam balancing energy-saving oil pumping machine |
| CN203008871U (en) * | 2013-01-14 | 2013-06-19 | 鲁会策 | Balance beam-pumping unit |
| CN204225857U (en) * | 2014-11-24 | 2015-03-25 | 大庆派司石油科技有限公司 | Two horse head flexible drawing direct drive pumping unit |
| CN205382920U (en) * | 2015-12-24 | 2016-07-13 | 一能电气有限公司 | Beam -pumping unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105422052A (en) | 2016-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101379270A (en) | Draw twin-well oil-pumping machine | |
| CN101509364B (en) | Pendulum guide rod type pumping unit | |
| CN101424178B (en) | Crank block type pumping unit | |
| CN101532377B (en) | Pendulum-type energy-saving oil extractor | |
| CN204920914U (en) | Type beam -pumping unit is directly driven at top | |
| CN102678089A (en) | Mobile counterweight type pumping unit | |
| CN101881146A (en) | Swinging double-well pumping unit | |
| CN203050645U (en) | Beam-pumping unit | |
| CN205382920U (en) | Beam -pumping unit | |
| CN105422052B (en) | A kind of beam pumping unit | |
| CN204511396U (en) | A kind of back layer stacked pull bar long stroke pumping unit | |
| CN104421114A (en) | Active control interconversion system for kinetic energy of moving part and elastic potential energy of spring | |
| CN201620843U (en) | Hydraulic pumping unit for petroleum | |
| CN201531251U (en) | Energy-saving pumping unit | |
| CN101403287A (en) | Direct driving type multi-stroke multi-well oil pumping machine | |
| CN201031669Y (en) | Energy conservation type oil pumping machine | |
| CN203961921U (en) | A kind of pair of balanced hydraulic oil extractor | |
| CN206737892U (en) | A kind of adjustable more well linkage oil-pumps | |
| CN202673256U (en) | One-machine double-extraction lifting device for cluster well | |
| CN202467787U (en) | Walking-beam type bivariant energy-saving oil pumping unit | |
| CN201818287U (en) | Pulley reversing mechanism for purely mechanical reversing oil pumping unit | |
| CN201714345U (en) | Balancing device of pumping rod directly-balanced type energy-saving pumping unit | |
| CN104213879A (en) | Cable-free balance long-stroke oil pumping unit | |
| CN203626755U (en) | Hoist type lower drive intelligent control pumping unit | |
| CN204041026U (en) | A kind of without cable balance long stroke oil pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Baimiao Inventor after: Lin Xiangwu Inventor after: Zhao Ruihao Inventor before: Zhao Baimiao Inventor before: Lin Xiangwu |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A beam pumping unit Effective date of registration: 20200807 Granted publication date: 20180713 Pledgee: China Minsheng Banking Corp Wenzhou branch Pledgor: ONEPOWER ELECTRIC Co.,Ltd. Registration number: Y2020330000589 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |