CN108756820A - Intelligent Remote Control System and its control method for coal bed gas well mining device - Google Patents
Intelligent Remote Control System and its control method for coal bed gas well mining device Download PDFInfo
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- CN108756820A CN108756820A CN201810513217.0A CN201810513217A CN108756820A CN 108756820 A CN108756820 A CN 108756820A CN 201810513217 A CN201810513217 A CN 201810513217A CN 108756820 A CN108756820 A CN 108756820A
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- 239000003245 coal Substances 0.000 title claims abstract description 84
- 238000005065 mining Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000000605 extraction Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000035699 permeability Effects 0.000 claims description 5
- 238000013178 mathematical model Methods 0.000 claims description 4
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 239000003034 coal gas Substances 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 239000010865 sewage Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
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- 208000014674 injury Diseases 0.000 description 2
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- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
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- 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
- E21B43/006—Production of coal-bed methane
-
- 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
-
- 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
- E21B47/00—Survey of boreholes or wells
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/04—Measuring depth or liquid level
- E21B47/047—Liquid level
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
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- Mining & Mineral Resources (AREA)
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Abstract
For the intelligent Remote Control System of coal bed gas well mining device, including coal bed gas well parameter monitoring equipment, data collecting system, intelligent mining control system and remote monitoring and control system；Coal bed gas well parameter monitoring equipment includes mainly gas flowmeter, fluid flowmeter, underground stream pressure pressure sensing gauge, casing pressure pressure sensing meter, temperature sensing meter, liquid level test device and frequency converter；The invention also discloses the long-range control methods of the intelligent Remote Control System for coal bed gas well mining device.The present invention has the characteristics that, for different geological type coal bed gas wells and different phase mining, to realize the intelligent mining of different type coal bed gas well；The remote real time monitoring monitoring of coal bed gas well mining is realized, remote user can check inquiry and the detailed real time data of preservation and historical data long-range；User parameter setting can be carried out to frequency converter and instruction controls, including execute-in-place and remote control.
Description
Technical field
The invention belongs to cbm development technical fields, and in particular to be used for the intelligent remote control of coal bed gas well mining device
System and its control method processed.
Background technology
Rational mining intensity is to ensure that the key of coal bed gas well stable and high yields.If mining intensity is excessive, can cause
Fast quick and stress sensitive so that reservoir grievous injury causes low yield；If mining intensity is too low, development cost will be caused to increase.
Coal bed gas extraction not injure coal seam reservoirs as principle, traditional coal bed gas well mining according to coal bed gas well gas production,
The coal bed gas wells Parameters variations such as water yield, casing pressure, hydrodynamic face and bottom pressure select suitable mining working system.But China
During cbm development, the control of mining equipment is adjusted to manually adjust, manually based on ginseng.It has the following problems, tradition row
Adopting equipment needs professional to carry out scene adjustment control, great work intensity, and efficiency is low, and production cost is higher；Coal bed gas well
Position disperses, and farther out, the artificial gas well liquid loading data difficulty that obtains is big for well spacing, and collection in worksite information cycle is long, of high cost, accuracy
Difference cannot meet production needs；Mining personnel are difficult to realize, to the real-time record and monitoring of coal bed gas well drainage and mining parameters, go out
When existing abnormal conditions, it is difficult to adjust to coal bed gas well mining system, cause serious injury to coal seam reservoirs in time, increase the dimension of equipment
Accomplish this.
Invention content
The present invention provides the intelligent remote for coal bed gas well mining device to solve shortcoming in the prior art
Control system and its control method can realize the acquisition of coal bed gas well data, the control of data real-time display, mining and intelligent mining
Etc. functions, improve the degree of automation, safety and the controllability of coal bed gas extraction, reduce the labor intensity of mining personnel, realize
The stable yields and high yield of coal bed gas well.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：Intelligence for coal bed gas well mining device
Tele-control system, including coal bed gas well parameter monitoring equipment, data collecting system, intelligent mining control system and long-range monitoring
Monitoring system；
Coal bed gas well mining device includes motor, beam pumping unit, casing, oil pick-up tube, flowing line, exhaust line, sewage
Pond and compressor station, casing are vertically set in coal bed gas well, and oil pick-up tube is coaxial to be arranged in casing, and motor is pumped with beam type
The power intake of machine is sequentially connected, and the sucker rod of beam pumping unit is extend into oil pick-up tube, the both ends difference of flowing line
It is connect with cesspool and oil pick-up tube top, the both ends of exhaust line are connect with the top of compressor station and casing respectively, flowing line
On be provided with drain valve, be provided with air bleeding valve on exhaust line；
Coal bed gas well parameter monitoring equipment includes mainly gas flowmeter, fluid flowmeter, underground stream pressure pressure sensing gauge, casing pressure
Pressure sensing meter, temperature sensing meter, liquid level test device and frequency converter；Gas flowmeter is arranged on the exhaust line of well head,
Fluid flowmeter is arranged on the flowing line of well head, and underground stream pressure pressure sensing gauge and temperature sensing meter are arranged at coal bed gas
Coal seam position in well, casing pressure pressure sensing meter are arranged on the exhaust line of well head, and liquid level test device is arranged on the top of casing
The portion position and annular gap between casing and oil pick-up tube monitors vertically downward, frequency converter are mounted on motor；
Data collecting system use remote-terminal unit, remote-terminal unit by control cable respectively with gas flowmeter, liquid
Flowmeter body, underground stream pressure pressure sensing gauge, casing pressure pressure sensing meter, temperature sensing meter, frequency converter and liquid level test device phase
Connection；
Intelligent mining control system uses programmable automation controller, and programmable automation controller is according to coal bed gas well difference
Coal bed gas well, is divided into that crustal stress is big, crustal stress is small, water yield is small, water yield is big, permeability is high and permeability by geological conditions
Low different types of geological conditions establishes different mining mathematical models for different coal gas well type, according to coal bed gas
Well geological conditions selects mining model；
Data collecting system is connect by data line with intelligent mining control system, and data collecting system passes through GPRS or 4G networks
It is connect with remote monitoring and control system, remote monitoring and control system is connected by GPRS or 4G networks and intelligent mining control system
It connects.
The long-range control method of intelligent Remote Control System for coal bed gas well mining device, includes the following steps：
（1）, according to coal bed gas geologic information, select the mining model of coal bed gas well first；
（2）, data collecting system to flowing bottomhole pressure (FBHP) of coal bed gas well during coal bed gas extraction, shaft bottom liquid level, bottom hole temperature (BHT),
Casing pressure, gas production and water yield are monitored in real time, and pressure pressure sensing gauge, liquid level test device, temperature sensing meter, set are flowed in underground
Pressure pressure sensing gauge, gas flowmeter and fluid flowmeter acquire flowing bottomhole pressure (FBHP), shaft bottom liquid level, bottom hole temperature (BHT), casing pressure, production respectively
These data parameters are simultaneously transferred to intelligent mining control system by the data parameters of tolerance and water yield；
（3）, intelligent mining control system by analyzing data parameters, send out frequency modulation instruction, frequency converter tune to frequency converter
Whole motor speed adjusts the stroke jig frequency of the sucker rod of beam pumping unit, to realize real-time streams pressure stable raising or drop
Low control；Under special circumstances, intelligent mining control system controls motor start and stop, carries out interval extraction；
（4）, data collecting system will collect coal seam well drainage and mining parameters by GPRS transmission to remote monitoring and control system, remotely
Monitoring and controlling system receives the coal bed gas well mining data parameters of data collecting system transmission, is realized to coal bed gas well mining real-time
Long-range monitoring realizes the intelligentized control method of field device；And coal bed gas parameters data are preserved, it can inquire at any time, in mining
It alarms when generating failure in the process, extraction data is analyzed.
Gas flowmeter is used to monitor the data of gas production；Fluid flowmeter is used for monitoring the data of water yield；It flows underground
Pressure pressure sensing gauge is used for monitoring the data of downhole fluid pressure；Casing pressure pressure sensing meter is used for the pressure that monitoring sleeve is born；
Liquid level test device uses sonic test method, intervals to emit sound wave to liquid level, counted according to the length of reflection interval
Calculate liquid level variation；Temperature sensing meter is used for the temperature of extraction under monitoring well；Frequency converter mainly controls motor speed, and major parameter has
Output frequency, setpoint frequency, electric moter voltage and current of electric.
Using above-mentioned technical proposal, the intelligent mining control system in the present invention is PAC（Programmable automation controller）
By complex control algorithm, needs are produced according to a well, intelligent control underground liquid level controls liquid level decrease speed to the maximum extent
To adapt to the characteristic of reservoir stress sensibility；According to the hydrodynamic face control parameter of setting, by the stream pressure of acquisition, casing pressure data,
The procedure script that stability contorting stream pressure is write using mathematical model as calculation basis is sent out frequency modulation instruction to frequency converter, realized real-time
Control is raised and lowered in stream pressure stabilization.Frequency converter output frequency is controlled, to adjust the jig frequency of pumping unit, completes frequency conversion control.
The control of PAC control interfaces uses configuration programming, the adjustment of touch screen human-computer dialogue frame system to be conveniently operated and control.System environments
Local and remote network is supported to upgrade with application program.
Data collecting system in the present invention uses RTU（Remote-terminal unit）, it is connect with intelligent mining control system, and
It is connected with remote monitoring and control system by GPRS or 4G networks, the common intelligentized control method for realizing field device.
In conclusion the invention has the advantages that：
（1）For different geological type coal bed gas wells and different phase mining feature, the intelligence of different type coal bed gas well is realized
It can mining；
（2）The remote real time monitoring monitoring of coal bed gas well mining is realized, remote user remotely can check inquiry and preservation
Detailed real time data and historical data；
（3）User parameter setting can be carried out to frequency converter and instruction controls, including execute-in-place and remote control.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the fundamental diagram of the present invention.
Specific implementation mode
As depicted in figs. 1 and 2, the intelligent Remote Control System for coal bed gas well mining device of the invention, including coal
Layer gas well parameter monitoring equipment, data collecting system 18, intelligent mining control system 19 and remote monitoring and control system 20；
Coal bed gas well mining device includes motor 1, beam pumping unit 2, casing 3, oil pick-up tube 4, flowing line 5, exhaust line
6, cesspool 7 and compressor station 8, casing 3 are vertically set in coal bed gas well, and oil pick-up tube 4 is coaxial to be arranged in casing 3, motor 1
It is sequentially connected with the power intake of beam pumping unit 2, the sucker rod of beam pumping unit 2 is extend into oil pick-up tube 4, is drained
The both ends of pipeline 5 are connect with cesspool 7 and 4 top of oil pick-up tube respectively, the both ends of exhaust line 6 respectively with compressor station 8 and casing 3
Top connection, be provided with drain valve 9 on flowing line 5, air bleeding valve 10 be provided on exhaust line 6；
Coal bed gas well parameter monitoring equipment includes mainly gas flowmeter 11, fluid flowmeter 12, underground stream pressure pressure sensing gauge
13, casing pressure pressure sensing meter 14, temperature sensing meter 15, liquid level test device 16 and frequency converter 17；The setting of gas flowmeter 11 exists
On exhaust line 6, fluid flowmeter 12 is arranged on flowing line 5, and pressure pressure sensing gauge 13 and temperature sensing meter 15 are flowed in underground
It is arranged at coal seam position in coal bed gas well, casing pressure pressure sensing meter 14 is arranged on the exhaust line 6 of well head, liquid level test dress
It sets 16 and the top position in casing 3 is set and the annular gap between casing 3 and oil pick-up tube 4 monitors vertically downward, frequency converter
17 are mounted on motor 1；
Data collecting system 18 use remote-terminal unit, remote-terminal unit by control cable respectively with gas flowmeter
11, fluid flowmeter 12, underground stream pressure pressure sensing gauge 13, casing pressure pressure sensing meter 14, temperature sensing meter 15,17 and of frequency converter
Liquid level test device 16 is connected；
Intelligent mining control system 19 use programmable automation controller, programmable automation controller according to coal bed gas well not
Coal bed gas well is divided into that crustal stress is big, crustal stress is small, water yield is small, water yield is big, permeability is high and infiltration by same geological conditions
The low different types of geological conditions of rate, different mining mathematical models is established for different coal gas well type, according to coal seam
Gas well geological conditions selects mining model；
Data collecting system 18 is connect by data line with intelligent mining control system 19, data collecting system 18 by GPRS or
4G networks are connect with remote monitoring and control system 20, and remote monitoring and control system 20 passes through GPRS or 4G networks and intelligent mining control
System 19 processed connects.
The long-range control method of intelligent Remote Control System for coal bed gas well mining device, includes the following steps：
（1）, according to coal bed gas geologic information, select the mining model of coal bed gas well first；
（2）, data collecting system 18 is to flowing bottomhole pressure (FBHP) of coal bed gas well during coal bed gas extraction, shaft bottom liquid level, shaft bottom temperature
Degree, casing pressure, gas production and water yield are monitored in real time, and underground is flowed pressure pressure sensing gauge 13, liquid level test device 16, temperature and passed
Sense meter 15, casing pressure pressure sensing meter 14, gas flowmeter 11 and fluid flowmeter 12 acquire respectively flowing bottomhole pressure (FBHP), shaft bottom liquid level,
Bottom hole temperature (BHT), casing pressure, gas production and water yield data parameters and these data parameters are transferred to intelligent mining control system
19；
（3）, intelligent mining control system 19 by analyzing data parameters, send out frequency modulation instruction, frequency conversion to frequency converter 17
Device 17 adjusts 1 rotating speed of motor, adjusts the stroke jig frequency of the sucker rod of beam pumping unit 2, to realize real-time streams pressure stabilization
Control is raised and lowered；Under special circumstances, intelligent mining control system 19 controls 1 start and stop of motor, carries out interval extraction；
（4）, data collecting system 18 will collect coal seam well drainage and mining parameters by GPRS transmission to remote monitoring and control system 20,
Remote monitoring and control system 20 receives the coal bed gas well mining data parameters that data collecting system 18 is transmitted, to coal bed gas well mining
It realizes real-time remote monitoring monitoring, realizes the intelligentized control method of field device；And coal bed gas parameters data are preserved, it can look at any time
It askes, alarms when generating failure during mining, extraction data are analyzed.
Gas flowmeter 11 is used to monitor the data of gas production；Fluid flowmeter 12 is used for monitoring the data of water yield；Well
The pressure pressure sensing gauge 13 that flows down is used for monitoring the data of downhole fluid pressure；Casing pressure pressure sensing meter 14 holds for monitoring sleeve 3
The pressure received；Liquid level test device 16 uses sonic test method, and intervals emit sound wave to liquid level, according to reflection interval
Length come calculate liquid level variation；Temperature sensing meter 15 is used for the temperature of extraction under monitoring well；Frequency converter 17 mainly controls motor 1
Rotating speed, major parameter have output frequency, 1 electric current of setpoint frequency, 1 voltage of motor and motor.
The present embodiment is not to be made any form of restriction to shape, material, the structure etc. of the present invention, every according to this hair
Bright technical spirit belongs to the technology of the present invention side to any simple modification, equivalent change and modification made by above example
The protection domain of case.
Claims (3)
1. the intelligent Remote Control System for coal bed gas well mining device, it is characterised in that：Including coal bed gas well parameter monitoring
Equipment, data collecting system, intelligent mining control system and remote monitoring and control system；
Coal bed gas well mining device includes motor, beam pumping unit, casing, oil pick-up tube, flowing line, exhaust line, sewage
Pond and compressor station, casing are vertically set in coal bed gas well, and oil pick-up tube is coaxial to be arranged in casing, and motor is pumped with beam type
The power intake of machine is sequentially connected, and the sucker rod of beam pumping unit is extend into oil pick-up tube, the both ends difference of flowing line
It is connect with cesspool and oil pick-up tube top, the both ends of exhaust line are connect with the top of compressor station and casing respectively, flowing line
On be provided with drain valve, be provided with air bleeding valve on exhaust line；
Coal bed gas well parameter monitoring equipment includes mainly gas flowmeter, fluid flowmeter, underground stream pressure pressure sensing gauge, casing pressure
Pressure sensing meter, temperature sensing meter, liquid level test device and frequency converter；Gas flowmeter is arranged on the exhaust line of well head,
Fluid flowmeter is arranged on the flowing line of well head, and underground stream pressure pressure sensing gauge and temperature sensing meter are arranged at coal bed gas
Coal seam position in well, casing pressure pressure sensing meter are arranged on the exhaust line of well head, and liquid level test device is arranged on the top of casing
The portion position and annular gap between casing and oil pick-up tube monitors vertically downward, frequency converter are mounted on motor；
Data collecting system use remote-terminal unit, remote-terminal unit by control cable respectively with gas flowmeter, liquid
Flowmeter body, underground stream pressure pressure sensing gauge, casing pressure pressure sensing meter, temperature sensing meter, frequency converter and liquid level test device phase
Connection；
Intelligent mining control system uses programmable automation controller, and programmable automation controller is according to coal bed gas well difference
Coal bed gas well, is divided into that crustal stress is big, crustal stress is small, water yield is small, water yield is big, permeability is high and permeability by geological conditions
Low different types of geological conditions establishes different mining mathematical models for different coal gas well type, according to coal bed gas
Well geological conditions selects mining model；
Data collecting system is connect by data line with intelligent mining control system, and data collecting system passes through GPRS or 4G networks
It is connect with remote monitoring and control system, remote monitoring and control system is connected by GPRS or 4G networks and intelligent mining control system
It connects.
2. using the remote control method as described in claim 1 for the intelligent Remote Control System of coal bed gas well mining device
Method, it is characterised in that：Include the following steps：
（1）, according to coal bed gas geologic information, select the mining model of coal bed gas well first；
（2）, data collecting system to flowing bottomhole pressure (FBHP) of coal bed gas well during coal bed gas extraction, shaft bottom liquid level, bottom hole temperature (BHT),
Casing pressure, gas production and water yield are monitored in real time, and pressure pressure sensing gauge, liquid level test device, temperature sensing meter, set are flowed in underground
Pressure pressure sensing gauge, gas flowmeter and fluid flowmeter acquire flowing bottomhole pressure (FBHP), shaft bottom liquid level, bottom hole temperature (BHT), casing pressure, production respectively
These data parameters are simultaneously transferred to intelligent mining control system by the data parameters of tolerance and water yield；
（3）, intelligent mining control system by analyzing data parameters, send out frequency modulation instruction, frequency converter tune to frequency converter
Whole motor speed adjusts the stroke jig frequency of the sucker rod of beam pumping unit, to realize real-time streams pressure stable raising or drop
Low control；Under special circumstances, intelligent mining control system controls motor start and stop, carries out interval extraction；
（4）, data collecting system will collect coal seam well drainage and mining parameters by GPRS transmission to remote monitoring and control system, remotely
Monitoring and controlling system receives the coal bed gas well mining data parameters of data collecting system transmission, is realized to coal bed gas well mining real-time
Long-range monitoring realizes the intelligentized control method of field device；And coal bed gas parameters data are preserved, it can inquire at any time, in mining
It alarms when generating failure in the process, extraction data is analyzed.
3. long-range control method according to claim 2, it is characterised in that：Gas flowmeter is used to monitor the number of gas production
According to；Fluid flowmeter is used for monitoring the data of water yield；Underground stream pressure pressure sensing gauge is used for monitoring the number of downhole fluid pressure
According to；Casing pressure pressure sensing meter is used for the pressure that monitoring sleeve is born；Liquid level test device uses sonic test method, between certain time
Every emitting sound wave to liquid level, liquid level variation is calculated according to the length of reflection interval；Temperature sensing meter is used for extraction under monitoring well
Temperature；Frequency converter mainly controls motor speed, and major parameter has output frequency, setpoint frequency, electric moter voltage and current of electric.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388226A (en) * | 2019-07-23 | 2019-10-29 | 中石油煤层气有限责任公司 | A kind of coal bed gas well negative pressure mining control device and system |
| CN110397425A (en) * | 2019-07-12 | 2019-11-01 | 中国石油大学(北京) | Coal seam gas production well flowing bottomhole pressure (FBHP) control system and control method |
| CN110501255A (en) * | 2019-09-04 | 2019-11-26 | 山西工程技术学院 | Coal dust content monitor control system and its working method during coal bed gas well mining |
| CN110501944A (en) * | 2019-08-21 | 2019-11-26 | 东北大学秦皇岛分校 | Production of hydrocarbons intelligent monitor system and method based on NB-IoT |
| CN111075408A (en) * | 2019-12-27 | 2020-04-28 | 山西晋城无烟煤矿业集团有限责任公司 | Device and method for remotely controlling gas production rate of coal-bed gas well |
| CN111119842A (en) * | 2019-12-23 | 2020-05-08 | 山西晋城无烟煤矿业集团有限责任公司 | Automatic metering method and system for low water yield of coal-bed gas well |
| CN111963116A (en) * | 2020-08-14 | 2020-11-20 | 中国石油大学(北京) | Intelligent gas field system and method for self-adaption and intelligent analysis decision |
| CN115405269A (en) * | 2021-05-27 | 2022-11-29 | 中国石油天然气股份有限公司 | Intelligent control system and control method for cold production of thickened oil |
| CN117266804A (en) * | 2023-11-13 | 2023-12-22 | 东营中威石油技术服务有限公司 | Jet pump drainage control method and system |
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| CN110397425A (en) * | 2019-07-12 | 2019-11-01 | 中国石油大学(北京) | Coal seam gas production well flowing bottomhole pressure (FBHP) control system and control method |
| CN110388226A (en) * | 2019-07-23 | 2019-10-29 | 中石油煤层气有限责任公司 | A kind of coal bed gas well negative pressure mining control device and system |
| CN110501944A (en) * | 2019-08-21 | 2019-11-26 | 东北大学秦皇岛分校 | Production of hydrocarbons intelligent monitor system and method based on NB-IoT |
| CN110501255A (en) * | 2019-09-04 | 2019-11-26 | 山西工程技术学院 | Coal dust content monitor control system and its working method during coal bed gas well mining |
| CN111119842A (en) * | 2019-12-23 | 2020-05-08 | 山西晋城无烟煤矿业集团有限责任公司 | Automatic metering method and system for low water yield of coal-bed gas well |
| CN111119842B (en) * | 2019-12-23 | 2023-05-09 | 山西晋城无烟煤矿业集团有限责任公司 | Automatic metering method and system for low water yield of coal-bed gas well |
| CN111075408A (en) * | 2019-12-27 | 2020-04-28 | 山西晋城无烟煤矿业集团有限责任公司 | Device and method for remotely controlling gas production rate of coal-bed gas well |
| CN111963116A (en) * | 2020-08-14 | 2020-11-20 | 中国石油大学(北京) | Intelligent gas field system and method for self-adaption and intelligent analysis decision |
| CN115405269A (en) * | 2021-05-27 | 2022-11-29 | 中国石油天然气股份有限公司 | Intelligent control system and control method for cold production of thickened oil |
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