CN106223877A - The automatic well washing apparatus of coal bed gas well - Google Patents
The automatic well washing apparatus of coal bed gas well Download PDFInfo
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- CN106223877A CN106223877A CN201610663516.3A CN201610663516A CN106223877A CN 106223877 A CN106223877 A CN 106223877A CN 201610663516 A CN201610663516 A CN 201610663516A CN 106223877 A CN106223877 A CN 106223877A
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- casing
- pressure plunger
- well
- bed gas
- automatic
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- 239000003245 coal Substances 0.000 title claims abstract description 68
- 238000005406 washing Methods 0.000 title claims abstract description 55
- 238000005086 pumping Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000011010 flushing procedure Methods 0.000 claims abstract description 21
- 239000003921 oil Substances 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 241000208340 Araliaceae Species 0.000 claims description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 235000008434 ginseng Nutrition 0.000 claims description 2
- 239000010687 lubricating oil Substances 0.000 claims description 2
- 230000008450 motivation Effects 0.000 claims 1
- 239000002817 coal dust Substances 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004459 forage Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000001179 sorption measurement 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention belongs to coal-bed gas exploitation field, in particular it relates to a kind of automatic well washing apparatus of coal bed gas well.The automatic well washing apparatus of coal bed gas well includes casing, high-pressure plunger pumping system, automatic control system, switch assembly；Thermal circuit, high-pressure plunger pumping system, automatic control system and switch assembly are set in casing; the water on ground is injected in coal bed gas well by high-pressure plunger pumping system; automatic control system is monitored and controlled well site parameter and flushing parameter in real time, and the work of the thermal circuit in casing, high-pressure plunger pumping system and automatic control system is controlled and protects by switch assembly.The present invention uses minitype high voltage plunger displacement pump to replace large-scale well-washing truck and by well washing equipment and control system skid, make coal bed gas well well washing equipment convenient in carrying, can control by remote auto, the number of times of the execute-in-place that reduces a staff regulation and control, improve work efficiency, in the case of sleety weather and temperature are relatively low, also can carry out clean-out service, discharge coal dust in time, reduce down-hole fault and occur.
Description
Technical field
The invention belongs to coal-bed gas exploitation field, in particular it relates to a kind of automatic well washing apparatus of coal bed gas well.
Background technology
Coal bed gas is a kind of by coalbed-forming and the Unconventional forage that mainly preserves in coal seam with adsorbed state, mainly
Composition is methane.Coal bed gas extraction is also called water pumping gas production, by artificial lift method, is discharged by water, make in coal bed gas well
Coal seam reservoirs pressure is reduced to below coal bed gas critical desorption pressures value, so that ADSORPTION STATE methane desorbing is a large amount of free state methane
And migrate to well head.
A large amount of coal dusts, silt particle and other abrasion granule is easily produced, due in coal bed gas well during coal bed gas extraction
The granules such as later stage aquifer yield is less, coal dust sand grains can not be carried out pit shaft in time, deposits in shaft bottom, causes Pump Suction Nozzle to block up
Plug, the faults such as valve is not closed completely, holddown, and also the dry friction between well sucker rod and the oil pipe of feed flow deficiency accelerates oil pumping
Bar breaks and takes off and the generation of oil pipe leakage fault, thus substantially reduces the inspection pump well workover cycle, adds development cost, has a strong impact on
The seriality of coal bed gas extraction.On-the-spot well washing apparatus equipment is heavy greatly, and technique is loaded down with trivial details, operation complexity, it is impossible to remotely
Automatically controlling, and major part coal bed gas well is positioned at the mountain area of inclement condition, equipment carrying inconvenience, washing well process staff need to go
Well site manually adjust ginseng repeatedly, and sleety weather and temperature relatively low when cannot clean-out service, greatly reduce work efficiency.
Summary of the invention
For the problem overcoming prior art to exist, the present invention provides a kind of automatic well washing apparatus of coal bed gas well.
For achieving the above object, the technical solution used in the present invention is as follows:
The automatic well washing apparatus of coal bed gas well, including: casing, high-pressure plunger pumping system, automatic control system, switch assembly；
Arranging thermal circuit, high-pressure plunger pumping system, automatic control system and switch assembly in casing, high-pressure plunger pumping system is by ground
Water be injected in coal bed gas well, automatic control system is monitored and controlled well site parameter and flushing parameter, switch assembly pair in real time
The work of thermal circuit, high-pressure plunger pumping system and automatic control system in casing is controlled and protects.
Relative to prior art, beneficial effects of the present invention is as follows:
1. the automatic well washing apparatus of coal bed gas well use minitype high voltage plunger displacement pump replace large-scale well-washing truck, and by well washing equipment with
Control system skid, makes coal bed gas well well washing equipment convenient in carrying；
2. the automatic well washing apparatus of coal bed gas well can control by remote auto, and it is secondary that the execute-in-place that reduces a staff regulates and controls
Number, improves work efficiency；
3. coal bed gas well automatic well washing apparatus box house has insulation material and electric tracing, relatively low at sleety weather and temperature
In the case of also can carry out clean-out service, thus discharge coal dust in time, reduce the generation of down-hole fault；
4. the automatic well washing apparatus of coal bed gas well uses multiple well-flushing pattern, can meet various working (as few in aquifer yield,
Feed flow is not enough, soft card, frequent holddown) coal bed gas well, regular well-flushing moisturizing, effectively by shaft bottom coal dust discharge, reduce shaft bottom
The dry friction of equipment room, reduces the generation of down-hole fault.
Accompanying drawing explanation
Fig. 1 is coal bed gas well automatic well washing apparatus overall diagram；
Fig. 2 is the high-pressure plunger pump system layout figure of the automatic well washing apparatus of coal bed gas well；
Fig. 3 is the automatic control system layout of the automatic well washing apparatus of coal bed gas well；
Fig. 4 is the joint connection in site simplification figure of the automatic well washing apparatus of coal bed gas well；
Fig. 5 is the automatic control flow chart figure of the automatic well washing apparatus of coal bed gas well；
Fig. 6 a is the simple well-flushing pattern diagram of the automatic well washing apparatus of coal bed gas well；
Fig. 6 b is the fine well-flushing pattern diagram of the automatic well washing apparatus of coal bed gas well；
In figure: 100, the automatic well washing apparatus of coal bed gas well, 1, casing, 11, roof box, 12, casing right plate, 13, case
Body left plate, 14, box bottom, 15 high-pressure plunger pumping system Qianmens, 16, automatic control system door, 17, high-pressure plunger pumping system
Back door, 18, run indicator, 19, scram button, 110, be mingled with electrically heat tracing insulation material, 111, fixing guide rail, 112, heat radiation
Hole, 113, movable pulley, 2, high-pressure plunger pumping system, 21, motor, 22, belt, 23, high-pressure plunger pump, 24, liquid sucting port, 25,
Leakage fluid dram, 26, base, 3, automatic control system, 31, wireless transport module, 32, data acquisition module, 33, power supply, 34, liquid crystal
Display screen, 35, data processing module, 36, converter, 37, electronic flowmeter, 38, electronic pressure gauge, 39, fuel level sensor, 4,
Switch assembly, 41, motor switch, 42, control switch, 43, display screen switch, 44, heat-insulation switch, 5, background system, 6, coal
Layer gas well field, 61, oil pumper, 62, water producing pipe line, 63, produce water ga(u)ge, 64, oil pumper converter, 65 aerogenesis pipelines, 66 sets
Pipe, 67 oil pipes, 68 sucker rods, 69 oil well pumps, 610 well head test valves, 611 coal seams, 612 evaporation tanks, 613 water pots, 614 well sites
Switch board.
Detailed description of the invention
As shown in Figures 1 to 4, the automatic well washing apparatus of coal bed gas well, including: casing 1, high-pressure plunger pumping system 2, automatically control
System 3 processed, switch assembly 4；Thermal circuit, high-pressure plunger pumping system 2, automatic control system 3 and switch assembly are set in casing 1
4, reach not affected by sleety weather and low temperature condition, high-pressure plunger pumping system 2 replaces large-scale well-washing truck, is noted by the water on ground
Entering in coal bed gas well, automatic control system 3 is monitored and controlled well site parameter and flushing parameter in real time, reaches remote auto control
System, the number of times of the execute-in-place that reduces a staff regulation and control, switch assembly 4 is to the thermal circuit in casing 1, high-pressure plunger pump system
The work of system 2 and automatic control system 3 is controlled and protects.
Before and after casing 1, orientation, left and right is as the criterion with shown in Fig. 1；Casing 1, including: roof box 11, casing left plate 13,
Casing right plate 12, box bottom 14, high-pressure plunger pumping system Qianmen 15, automatic control system door 16, high-pressure plunger pumping system
Back door 17；Roof box 11, casing left plate 13, casing right plate 12, box bottom 14, high-pressure plunger pumping system Qianmen 15,
Automatic control system door 16, high-pressure plunger pump system backdoor 17 form rectangle housing, wherein: high-pressure plunger pumping system Qianmen 15
With the front end that automatic control system door 16 is arranged at casing 1, high-pressure plunger pump system backdoor 17 is arranged at the rear end of casing 1, case
By dividing plate, casing 1 being separated into left chamber and right chamber between body top board 11 and box bottom 14, high-pressure plunger pumping system 2 is pacified
Being contained in casing 1 left chamber, automatic control system 3 and switch assembly 4 are arranged on the right chamber of casing 1；At the bottom of the casing of casing 1 left chamber
Arranging two fixing guide rails 111 on plate 14, high-pressure plunger pumping system 2 is fixed on fixing guide rail 111, therefore clean-out service process
In, water will not contact cause short circuit with automatic control system 3 and switch assembly 4；Roof box 11, casing right plate 12, casing
Internal being filled with of left plate 13, box bottom 14 is mingled with electrically heat tracing insulation material 110, and sleety weather and temperature are permissible time relatively low
Improve the temperature within device and guarantee that clean-out service is normally carried out；On automatic control system door 16, installation and operation display lamp 18 is with anxious
Stopping button 19, when well washing apparatus normal operation, run indicator 18 shows green, when well washing apparatus runs the luck that breaks down
Row display lamp 18 shows redness, can stop well-flushing by quickly closing power supply by scram button 19 when an emergency happens
Plant running；Fixing guide rail 111 closes, for positive stop end near the one end at high-pressure plunger pumping system Qianmen 15；Fixing guide rail 111 leans on
The one end open of nearly high-pressure plunger pump system backdoor 17, for input；Louvre 112, louvre are set on casing right plate 12
12 Open Side Down, thus the purpose prevent sleet from entering the inside of casing 1 of reaching to dispel the heat；Four shiftings are installed bottom box bottom 14
Driving wheel 113, it is simple to the carrying of the automatic well washing apparatus of coal bed gas well is moved.
High-pressure plunger pumping system 2, including: motor 21, belt 22, high-pressure plunger pump 23, liquid sucting port 24, leakage fluid dram 25,
Base 26；Wherein, motor 21 and high-pressure plunger pump 23 are bolted on base 26, and motor 21 and high-pressure column
Plug pump 23 is connected by belt 22, is I-shaped structure bottom base 26, is tied by the I-shaped of the base 26 of motor 21 end during installation
Structure pushes from the input of the fixing guide rail 111 of casing 1, slides into the positive stop end of the fixing guide rail 111 of casing 1, so that high
Hydraulic plunger pump system 2 is fixed in casing 1, is tied by the base I-shaped of high-pressure plunger pump 23 end during examination and repair for high-pressure plunger pump system 2
Structure pulls out from the input of the fixing guide rail 111 of casing 1, thus convenient dismounting；Liquid sucting port 24 and leakage fluid dram 25 be mounted side by side in
On high-pressure plunger pump 23.
Shown in Fig. 5, automatic control system 3, including: wireless transport module 31, data acquisition module 32, power supply 33,
LCDs 34, data processing module 35, converter 36, electronic pressure gauge 37, electronic flowmeter 38, fuel level sensor 39；
Wherein: electronic pressure gauge 37 and electronic flowmeter 38 are arranged on leakage fluid dram 25 pipeline of high-pressure plunger pump 23, electronic pressure gauge
37 pressure monitoring leakage fluid dram 25 in real time, the lifting rate of high-pressure plunger pump 23 monitored in real time by electronic flowmeter 38；Fuel level sensor
39 are installed in high-pressure plunger pump 23, in real time the level height of lubricating oil in monitoring high-pressure plunger pump 23；Data acquisition module 32
It is connected with converter 36, electronic pressure gauge 37, electronic flowmeter 38, fuel level sensor 39 respectively, Real-time Collection converter 36
Electric current and frequency, the pressure data of electronic pressure gauge 37, the data on flows of electronic flowmeter 38 and the oil level of fuel level sensor 39
Altitude information；LCDs 34 is arranged on automatic control system door 16, shows for system operational parameters and control instruction
Assign；Data processing module 35 is connected with wireless transport module 31, data acquisition module 32, is collected by data acquisition module 32
Data calculating process after, be real-time transmitted to background system 5 by wireless transport module 31, when converter 36, electronic pressure gauge
37, when electronic flowmeter 38, the data of fuel level sensor 39 metering occur abnormal, run indicator 18 is become red from green, and
Notice background system 5 clean-out service breaks down.
Switch assembly 4, including: motor switch 41, control switch 42, display screen switch 43, heat-insulation switch 44；Wherein,
Motor switch 41 controls motor 21 and the work of converter 36；Control switch 42 control wireless transport module 31, data acquisition
Collection module 32, power supply 33 and the work of data processing module 35；The work of display screen switch 43 control LCDs 34；Insulation
The internal electrically heat tracing work of switch 44 control casing 1.
The automatic well washing apparatus of coal bed gas well of the present invention, its operation principle is as follows: using, coal bed gas well of the present invention is automatic
When well washing apparatus 100 carries out clean-out service, first by the liquid sucting port 24 of automatic for coal bed gas well well washing apparatus 100 by pipe and coal
Evaporation tank 612 or the water pot 613 of layer gas well field 6 connect, and leakage fluid dram 25 is by the well head test valve of pipe with coal bed gas well site 6
610 connect, and open well head test valve 610 afterwards during clean-out service, and the water in evaporation tank 612 or water pot 613 is from coal bed gas
The liquid sucting port 24 of the automatic well washing apparatus of well 100 enters in high-pressure plunger pump 23, then from leakage fluid dram 25 through electronic pressure gauge 37 and electricity
Subflow gauge 38 measures and guides well head test valve 610 along pipe, is injected into well along annular space between oil pipe 67 and sleeve pipe 66
The end, suitably increasing the frequency of oil pumper converter 64, thus the jig frequency of oil pumper 61 improves, the lifting rate of oil well pump 69 increases,
Shaft bottom liquid carries coal dust silt particle and rises to ground along oil pipe 67, after measuring further along water producing pipe line 62 multiparity water ga(u)ge 63
It is drained in evaporation tank 612.
Shown in Fig. 5, well site switch board 614 is connected with product water ga(u)ge 63, oil pumper converter 64 respectively, adopts in real time
Collection produces the data of water ga(u)ge 63 and oil pumper converter 64, and by the real-time data transmission that collects to background system 5, backstage
The data that automatic for coal bed gas well well washing apparatus 100 transmits with well site switch board 614 are combined by system 5, to on-the-spot clean-out service
Monitoring in real time and accurately process.
As shown in Fig. 6 a to 6b, the washing well process of the automatic well washing apparatus of coal bed gas well of the present invention 100 be divided into the water filling stage and
In the well-flushing stage, the water filling stage refers to that being only not required to improve oil pumper 61 with the automatic well washing apparatus of coal bed gas well 100 to coal seam 611 water filling rushes
The aquifer yield of secondary increase coal bed gas well, the well-flushing stage refers to carry to coal seam 611 water filling with the automatic well washing apparatus of coal bed gas well 100 simultaneously
High oil pumper 61 jig frequency increases the aquifer yield of coal bed gas well, and the well-flushing stage is divided into simple well-flushing pattern and fine well-flushing pattern, letter
Single well-flushing pattern refers to that the lifting rate q of the automatic well washing apparatus of coal bed gas well 100 is steady state value always, before fine well-flushing pattern refers to well-flushing
Phase slowly improves lifting rate q to steady state value of the automatic well washing apparatus of coal bed gas well 100, and the well-flushing later stage slowly reduces coal bed gas well
Automatically the lifting rate q to zero of well washing apparatus 100.For produce water electrode few or because of feed flow deficiency can not cause the coal bed gas well of liquid can
Use the water filling stage, periodically to stratum moisturizing；For can be only with washing during coal bed gas well clean-out service that relative aquifer yield is higher
Well stage simple mode；For stratum feed flow not enough or produce the less coal bed gas well of water the water filling stage can be used to add well-flushing rank
Section；For easy holddown or occur soft card the well well-flushing stage use fine well-flushing pattern.
Claims (7)
1. the automatic well washing apparatus of coal bed gas well, including: casing, high-pressure plunger pumping system, automatic control system, switch are total
Become；It is characterized in that: thermal circuit, high-pressure plunger pumping system, automatic control system and switch assembly, high-pressure column are set in casing
The water on ground is injected in coal bed gas well by plug pumping system, and automatic control system is monitored and controlled well site parameter and well-flushing ginseng in real time
Number, the work of the thermal circuit in casing, high-pressure plunger pumping system and automatic control system is controlled and protects by switch assembly
Protect.
The automatic well washing apparatus of coal bed gas well the most according to claim 1, it is characterised in that: casing, including: roof box,
Casing left plate, casing right plate, box bottom, high-pressure plunger pumping system Qianmen, automatic control system door, high-pressure plunger pump system
System back door；Roof box, casing left plate, casing right plate, box bottom, high-pressure plunger pumping system Qianmen, automatically control and be
System door, high-pressure plunger pump system backdoor composition rectangle housing, wherein: high-pressure plunger pumping system Qianmen and automatic control system door
Being arranged at the front end of casing, high-pressure plunger pump system backdoor is arranged at the rear end of casing, logical between roof box and box bottom
Crossing dividing plate and casing is separated into left chamber and right chamber, high-pressure plunger pumping system is arranged on casing left chamber, automatic control system
It is arranged on the right chamber of casing with switch assembly；Two fixing guide rails, high-pressure plunger pump are set on the box bottom of casing left chamber
System is fixed on fixing guide rail；Installation and operation display lamp and scram button on automatic control system door, when well washing apparatus runs
Run indicator display green time normal, the run indicator display redness when well washing apparatus runs and breaks down, tight when occurring
Well washing apparatus operation can be stopped by quickly closing power supply by scram button during anxious situation；Fixing guide rail is near high-pressure plunger
One end Guan Bi at pumping system Qianmen, for positive stop end；Fixing guide rail is near the one end open of high-pressure plunger pump system backdoor, for input
End.
3. according to the automatic well washing apparatus of the coal bed gas well described in claim 1-2, it is characterised in that: high-pressure plunger pumping system, bag
Include: motor, belt, high-pressure plunger pump, liquid sucting port, leakage fluid dram, base；Wherein, motor and high-pressure plunger pump pass through bolt
Being fixed on base, and motor is connected by belt with high-pressure plunger pump, base bottom is I-shaped structure, by electricity during installation
The I-shaped structure of the base of motivation end pushes from the input of the fixing guide rail of casing, slides into fixing guide rail spacing of casing
End, so that high-pressure plunger pumping system is fixed in casing, by the base of high-pressure plunger pump end during examination and repair for high-pressure plunger pump system
I-shaped structure pulls out from the input of the fixing guide rail of casing, thus convenient dismounting；Liquid sucting port and leakage fluid dram are mounted side by side in height
On hydraulic plunger pump.
4. according to the automatic well washing apparatus of the coal bed gas well described in claim 1-3, it is characterised in that: automatic control system, including:
Wireless transport module, data acquisition module, power supply, LCDs, data processing module, converter, electronic pressure gauge, electronics
Effusion meter, fuel level sensor；Wherein: electronic pressure gauge and electronic flowmeter are arranged on the leakage fluid dram pipeline of high-pressure plunger pump,
Electronic pressure gauge monitors the pressure of leakage fluid dram in real time, and the lifting rate of high-pressure plunger pump monitored in real time by electronic flowmeter；Oil level senses
Device is installed in high-pressure plunger pump, in real time the level height of lubricating oil in monitoring high-pressure plunger pump；Data acquisition module respectively with
Converter, electronic pressure gauge, electronic flowmeter, fuel level sensor connect, the electric current of Real-time Collection converter and frequency, electronics pressure
The level height data of the pressure data of power meter, the data on flows of electronic flowmeter and fuel level sensor；LCDs is installed
On automatic control system door, show for system operational parameters and control instruction is assigned；Data processing module be wirelessly transferred
Module, data acquisition module connect, after data calculating data collecting module collected arrived processes, real by wireless transport module
Time be transferred to background system, when converter, electronic pressure gauge, electronic flowmeter, the data of fuel level sensor metering occur abnormal
Time run indicator become red from green, and notify that background system clean-out service breaks down.
5. according to the automatic well washing apparatus of the coal bed gas well described in claim 1-4, it is characterised in that: switch assembly, including: electronic
Machine switch, control switch, display screen switch, heat-insulation switch；Wherein, motor switch controls motor and the work of converter；
Control on-off control wireless transport module, data acquisition module, power supply and the work of data processing module；Display screen on-off control
The work of LCDs；Heat-insulation switch controls the electrically heat tracing work of box house.
6. according to the automatic well washing apparatus of the coal bed gas well described in claim 1-5, it is characterised in that: on the right side of roof box, casing
It is filled with inside plate, casing left plate, box bottom and is mingled with electrically heat tracing insulation material.
7. according to the automatic well washing apparatus of the coal bed gas well described in claim 1-6, it is characterised in that: arrange scattered on casing right plate
Hot hole, Open Side Down for louvre, installs four movable pulleys bottom box bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610663516.3A CN106223877B (en) | 2016-08-12 | 2016-08-12 | The automatic well washing apparatus of coal bed gas well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610663516.3A CN106223877B (en) | 2016-08-12 | 2016-08-12 | The automatic well washing apparatus of coal bed gas well |
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| Publication Number | Publication Date |
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| CN106223877A true CN106223877A (en) | 2016-12-14 |
| CN106223877B CN106223877B (en) | 2018-08-21 |
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| CN201610663516.3A Expired - Fee Related CN106223877B (en) | 2016-08-12 | 2016-08-12 | The automatic well washing apparatus of coal bed gas well |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869319A (en) * | 2016-09-26 | 2018-04-03 | 布里斯托公司商用名远程自动化解决方案 | Automatic washing system for screw pump system |
| CN109611042A (en) * | 2019-01-08 | 2019-04-12 | 中国石油天然气股份有限公司浙江油田分公司西南采气厂 | A kind of automatic well washing apparatus of coal bed gas well |
| CN110388195A (en) * | 2018-04-23 | 2019-10-29 | 中国石油天然气股份有限公司 | Coal bed gas extraction method and system |
| CN114592813A (en) * | 2022-04-18 | 2022-06-07 | 大庆长垣能源科技有限公司 | Well washing device for screen pipe well completion |
| CN115179240A (en) * | 2022-09-08 | 2022-10-14 | 上海海事大学 | Flexible sealing plunger pump and maintenance equipment |
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| CN109611042B (en) * | 2019-01-08 | 2023-04-25 | 中国石油天然气股份有限公司浙江油田分公司西南采气厂 | Automatic well flushing device for coal-bed gas well |
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| CN114592813B (en) * | 2022-04-18 | 2023-11-21 | 大庆长垣能源科技有限公司 | Well flushing device for screen pipe well completion |
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