CN106014378A - Coal-bed gas intelligent water-measuring device and method - Google Patents
Coal-bed gas intelligent water-measuring device and method Download PDFInfo
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- CN106014378A CN106014378A CN201610547497.8A CN201610547497A CN106014378A CN 106014378 A CN106014378 A CN 106014378A CN 201610547497 A CN201610547497 A CN 201610547497A CN 106014378 A CN106014378 A CN 106014378A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 332
- 239000007788 liquid Substances 0.000 claims abstract description 116
- 238000004891 communication Methods 0.000 claims abstract description 18
- 239000003245 coal Substances 0.000 claims description 85
- 238000005259 measurement Methods 0.000 claims description 22
- 238000012360 testing method Methods 0.000 claims description 16
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 14
- 230000000739 chaotic effect Effects 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 11
- 239000002817 coal dust Substances 0.000 claims description 10
- 241000372132 Hydrometridae Species 0.000 claims description 6
- 206010016807 Fluid retention Diseases 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000002085 persistent effect Effects 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 235000020681 well water Nutrition 0.000 claims description 3
- 239000002349 well water Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000005065 mining Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 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
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a coal-bed gas intelligent water-measuring device and method. The device comprises a water tank and a control unit, wherein the water tank is provided with a water inlet end communicated with a water generating end of a coal-bed gas well and a water outlet end for discharging water from the water tank; a first control valve is arranged at the water inlet end; a second control valve is arranged at the water outlet end; a liquid level detector for detecting the liquid level height in the water tank is arranged in the water tank; the control unit is used for collecting the liquid level height detected by the liquid level detector, recording the time of the liquid level detector reaching the preset liquid level height and controlling the first control valve and the second control valve to open or close; and the control unit is connected with a communication module and a display device, wherein the communication module is communicated with the exterior, and the display device is used for displaying data. The coal-bed gas intelligent water-measuring device is simple and reasonable in structure design, is free from unnecessary trouble brought by a water gauge adopted in the prior art, is capable of increasing the working efficiency and can ensure the accuracy of measuring the water yield.
Description
Technical field
The present invention relates to a kind of coal bed gas Intelligent testing water device and method.
Background technology
During the mining of coal bed gas, need by the water in pump drainage coal seam with reduce coal seam pressure so that
Obtain coal bed gas to discharge with desorbing.It is thus desirable to by coal bed gas well is grasped in the collection of coal seam aquifer yield
Production status, to ensure the normal production run of coal bed gas well.
It addition, different coal bed gas wells and different mining stage thereof, during the pump drainage of water, displacement
Excursion may be bigger, and often along with gas and the discharge of coal dust.If using traditional
Water ga(u)ge, its range ability generally cannot cover the water yield change in different coal gas well and different mining stage
Scope；And the coal dust carried in output water may block water ga(u)ge, cause water metering inaccurate or instrument
Table lost efficacy.
Summary of the invention
For above-mentioned technical problem, it is an object of the invention to provide one can be during coal bed gas extraction
Effectively measure the coal bed gas Intelligent testing water device and method of aquifer yield.
The technical scheme of the object of the invention one is as follows:
A kind of coal bed gas Intelligent testing water device, including water tank, water tank has and produces what water end (W.E.) connected with coal bed gas well
The water side that water in water inlet end, and supply tank is discharged, is equipped with control from coal bed gas well on water inlet end
Produce water end (W.E.) and enter the first control valve of Water in Water Tanks, water side is equipped with control that water flows out in water tank second
Control valve；
The liquid level detector that liquid level in water tank is detected it is provided with in water tank；
And for gathering liquid level that liquid level detector detects and recording liquid level detector and reach to set liquid
Time required for the height value of position, and control above-mentioned first control valve, control that the second control valve is switched on or off
Unit processed；
Described control unit connects to be had and the outside communication module forming communication, and is used for the aobvious of video data
Showing device.
Further, for the ease of the discharge of the gas in water tank, described tank top connects to be had for by water
The air vent that in case, gas is discharged.
Further, it is monitored for the ease of being produced from coal seam the turbidity of water and water tank is carried out,
It is provided with the turbidity sensor of water chaotic degree in detecting water tank in described water tank, water tank also connects
There is clear water water inlet pipe, be equipped with the 3rd control valve controlled in external water entrance water tank, institute at clear water water inlet pipe
Stating turbidity sensor and the muddy signal of detection is transferred to control unit, control unit controls described 3rd control
Being switched on or off of valve processed.
Further, in described water tank, it is provided with liquid-level switch, when the liquid level in water tank reaches to set liquid level,
Liquid-level switch produces and triggers signal and transmit a signal to control unit, and described control unit then controls to second
Valve sends the signal of unlatching.
The technical scheme of another goal of the invention of the present invention is as follows:
A kind of coal bed gas Intelligent testing water method, comprises the steps,
S1, turns off the second control valve of water tank water side, makes water tank form a tank；Open coal seam
Gas well produces the first control valve that water end (W.E.) is middle with water tank, and the water making coal bed gas well produce water end (W.E.) discharge enters in water tank；
S2, after coal bed gas well produces the water entrance water tank of water end (W.E.), the liquid level in water tank is examined by liquid level detector
Survey and the liquid level signal detected is transferred to control unit, when liquid level detector starts to detect liquid level, control
Unit processed starts timing；
Liquid level change when control unit timing time reaches to measure the end time, in control unit record water tank
Value, and generation amount Q this time measuring coal bed gas well product water end (W.E.) is calculated according to equation below,
Q=S* (H2-H1)/(T2-T1),
Wherein, S is the horizontal sectional area of water tank,
T1For measuring initial time,
T2For measuring the end time,
H1For T1Time water tank in liquid level,
H2For T2Time water tank in liquid level；
S3, in step s 2, control unit timing time reaches the liquid measured the end time and record in water tank
After the changing value of position, control unit opens the second control valve, discharges the water in water tank, when reaching to measure next time
During the time, circulate above-mentioned steps S1, S2.
Being provided with liquid-level switch in water tank, control unit is adjusted automatically according to the discharge change entered in water tank
The persistent period of whole each measurement；
When measuring every time, the measurement time not up to measures the end time, but liquid level has reached liquid level and opened
Close location, then control unit controls the second electrically-controlled valve unlatching, by the water-retention emptying of water tank institute；Control single
The measurement time is started to the time interval record reaching liquid-level switch position by unit, and automatically shortens and survey next time
The measurement time of amount, until it reaches the least measuring time limit value；The least measuring time limit value correspondence liquid level
The water yield of the position of the switch is the maximum range of this survey water device discharge, i.e. Qmax=S*Hmax/Tmin；
When measuring every time, the measurement time has reached to measure the end time, but liquid level is not reaching to minimum liquid
The position of position, control unit then automatically prolongs the measurement time, until liquid level reaches minimum liquid level location
Or maximum measuring time limit value；The minimum liquid level value that maximum measuring time limit value is corresponding is this survey water dress
Put the minimum range of discharge, i.e. Qmin=S*Hmin/Tmax；
When discharge reaches maximum or the minimum range surveying water device, control unit is shown by display device
Carry out prompt alarm, control equipment by communication module superior simultaneously and report correlation behavior.
Also including the cleaning step being carried out water tank, this cleaning step is as follows:
(1), the water of coal bed gas well output end is switched to bypass branch by the first control valve；
(2), close the second control valve, open the 3rd control valve and make rinse water pass through clear water water inlet pipe entrance water
In case；
(3), when liquid level reaches liquid-level switch height in water tank, the 3rd control valve is closed；
(4), control unit gathers the numerical value of turbidity sensor in water tank, and opens the second control valve by water
Water in case is discharged；
(5) if the muddy angle value of water is higher than set threshold value in the collected water tank of control unit, then
Repeat the above steps (2)～(4), until muddy angle value is less than set threshold value in water tank；
(6), coal bed gas well output water is switched to water tank water intake end by the first control valve, recover coal bed gas
Well surveying water measures.
Also wrapping and coal bed gas well is produced the step that the turbidity of water measures, this turbidity measuring process is as follows:
Before a, measurement coal bed gas well produce water chaotic degree, first according to cleaning step automatic washing water tank, to avoid water
The coal dust residue impact on measuring in case；
After b, water tank clean automatically, coal bed gas well produces water and switches to water tank water intake end by the first control valve,
Closing the second control valve, water tank starts that coal bed gas well is produced water and stores；
C, when in water tank, liquid level reaches liquid-level switch height, control unit collection also records turbidity and passes
The numerical value of sensor, this numerical value is current coal bed gas well and produces the turbidity of water；
D, when coal bed gas well water chaotic degree exceedes set threshold value, control unit is shown by display device
Carry out prompt alarm, control equipment by communication module superior simultaneously and report correlation behavior；
E, open the second control valve of water tank water side, the water stored in emptying water tank；
F, produce water chaotic degree situation according to coal bed gas well, automatically adjust the frequency of water tank auto-flushing.
Have employed technique scheme, when measuring coal bed gas well aquifer yield, close the second control valve, open
First control valve, such coal bed gas well produces the water of water end (W.E.) discharge and enters in water tank by water tank water intake end, liquid level
Detector carries out level monitoring to the water in water tank, and carries out timing by control unit, by gathering water tank
Interior liquid level data and the time record of control unit, calculate the aquifer yield during coal bed gas extraction,
The data gathered are transferred to higher level by communication module and control equipment, and are shown by display device；
When the data gathered reach to survey the maximum of water device or minimum range, control unit by display device show into
Row prompt alarm, to remind Field Force.It addition, the present invention surveys water device and method except realizing certainly
Dynamic measurement aquifer yield, it is also possible to the turbidity producing water is monitored, in order to grasp the life of coal bed gas well in time
Occurrence condition；And can automatically adjust carry out water tank clear water flushing according to the situation of coal dust quantum of output, to ensure to survey
Water device is operated in optimum state, thus reduces workload and the work difficulty that manual site safeguards.This
The design of bright structure is simple, reasonable and does not haves the unnecessary trouble using water ga(u)ge to bring in prior art,
Promote work efficiency, and ensure that the accuracy measuring aquifer yield.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the present invention surveys water device；
In accompanying drawing, 1 is water tank, and 2 is that coal bed gas well produces water end (W.E.), and 3 is water inlet end, and 4 is water side, and 5 is the
One control valve, 6 is the second control valve, and 7 is liquid level detector, and 8 is control unit, and 9 is communication module,
10 is display device, and 11 is air vent, and 12 is turbidity sensor, and 13 is clear water water inlet pipe, and 14 is
Three control valves, 15 is liquid-level switch, and 16 is bypass branch.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below to the embodiment of the present invention
Technical scheme be clearly and completely described.Obviously, described embodiment is the part of the present invention
Embodiment rather than whole embodiments.Based on described embodiments of the invention, the common skill in this area
The every other embodiment that art personnel are obtained on the premise of without creative work, broadly falls into the present invention and protects
The scope protected.
See Fig. 1, a kind of coal bed gas Intelligent testing water device, including a water tank 1 closed, water tank have with
Coal bed gas well produces the water inlet end 3 of water end (W.E.) 2 connection, and the water side 4 that the water in supply tank is discharged, in water inlet
It is equipped with the first control valve 5 controlling to produce water end (W.E.) entrance Water in Water Tanks from coal bed gas well on end, water side is assembled
Have and control the second control valve 6 that water flows out in water tank；Second control valve, is in normally open at ordinary times, so may be used
To keep the flowing of water, it is to avoid coal dust deposition in water tank.When carrying out the metering of discharge, by first
Control valve is closed, and water tank starts water-retention, and control unit gathers the change of liquid level, timing simultaneously.Time reaches
Measure end time, controller record liquid level changing value, open the second control valve, institute's water-retention in water tank is put
Empty, it is achieved once to survey water process, when reaching to measure the time next time, circulate above-mentioned steps.
The liquid level detector 7 that liquid level in water tank is detected it is provided with in water tank；Liquid level detector can
To use liquid level sensor；Or another preferred version, uses pressure transducer, by pressure change conversion
Change for liquid level；Or another preferred version, uses LOAD CELLS to record and measures the water yield in the time period
Change, the change of liquid level in detecting water tank, thus calculate water flow value.
And for gathering liquid level that liquid level detector detects and recording liquid level detector and reach to set liquid
Time required for the height value of position, and control above-mentioned first control valve, control that the second control valve is switched on or off
Unit 8 processed；Control unit can use the combination of Programmable Logic Controller or control module to realize；
Control unit connects to be had and the outside communication module 9 forming communication, and communication module can be wirelessly or non-wirelessly
Or the mode such as bluetooth, and the display device 10 for video data, display device can be LCDs
(touch) or character display etc., display aquifer yield, turbidity numerical value and correlation behavior change, and
Equipment reporting measurement numerical value and state is controlled by communication interface superior；In control unit then harvester
The duty of each sensor values, calculating and control valve；Tank top connects to be had for by gas in water tank
The air vent 11 that body is discharged, it is simple to the gas in water tank is discharged.
It is provided with the turbidity sensor 12 of water chaotic degree in detecting water tank in water tank, can measure in water tank
On the one hand the turbidity change of water, can be used to detect water tank and originally experiences the pollution level of coal dust, to determine to be
The no automatic cleaning carrying out water tank；On the other hand can be used to detect the turbidity of coal bed gas well output water, with
Just mining personnel grasp the changed condition of coal bed gas well in time.Water tank is also communicated with clear water water inlet pipe 13,
Be equipped with the 3rd control valve 14 controlled in external water entrance water tank at clear water water inlet pipe, turbidity sensor will
The muddy signal of detection is transferred to control unit, and control unit controls being switched on or off of the 3rd control valve.When
When in water tank, turbidity is higher than setting value, will opening the 3rd control valve, to make the clear water of outside enter in water tank right
Being carried out in water tank, if needing to increase Cistern flushing dynamics, pressure (hydraulic) water can be increased at clear water water inlet pipe
Pump, to increase the speed in clear water entrance water tank, to reach backwash rate.
It addition, be provided with liquid-level switch 15 in water tank, when the liquid level in water tank reaches to set liquid level, liquid level
Switch produces and triggers signal and transmit a signal to control unit, and control unit then sends out to the second control valve
The signal opened.Coal bed gas well produces water end (W.E.) 2 and is communicated with bypass branch 16, when being carried out in water tank, and can
To make the water of coal bed gas well output end switch in bypass branch by handling the first control valve.
Based on surveying the coal bed gas Intelligent testing water method of water device above, comprise the steps,
S1, turns off the second control valve of water tank water side, makes water tank form a tank；Open coal seam
Gas well produces the first control valve that water end (W.E.) is middle with water tank, and the water making coal bed gas well produce water end (W.E.) discharge enters in water tank；
S2, after coal bed gas well produces the water entrance water tank of water end (W.E.), the liquid level in water tank is examined by liquid level detector
Survey and the liquid level signal detected is transferred to control unit, when liquid level detector starts to detect liquid level, control
Unit processed starts timing；
Liquid level change when control unit timing time reaches to measure the end time, in control unit record water tank
Value, and generation amount Q this time measuring coal bed gas well product water end (W.E.) is calculated according to equation below,
Q=S* (H2-H1)/(T2-T1),
Wherein, S is the horizontal sectional area of water tank,
T1For measuring initial time,
T2For measuring the end time,
H1For T1Time water tank in liquid level,
H2For T2Time water tank in liquid level；
S3, in step s 2, control unit timing time reaches the liquid measured the end time and record in water tank
After the changing value of position, control unit opens the second control valve, discharges the water in water tank, when reaching to measure next time
During the time, circulate above-mentioned steps S1, S2.
Being provided with liquid-level switch in water tank, control unit is adjusted automatically according to the discharge change entered in water tank
The persistent period of whole each measurement；
When measuring every time, the measurement time not up to measures the end time, but liquid level has reached liquid level and opened
Close location, then control unit controls the second electrically-controlled valve unlatching, by the water-retention emptying of water tank institute；Control single
The measurement time is started to the time interval record reaching liquid-level switch position by unit, and automatically shortens and survey next time
The measurement time of amount, until it reaches the least measuring time limit value；The least measuring time limit value correspondence liquid level
The water yield of the position of the switch is the maximum range Q of this survey water device dischargemax,
I.e. Qmax=S*Hmax/Tmin；Wherein, S is the horizontal sectional area of water tank, TminFor the least measuring time
Limit value, HmaxFor the high level set in water tank；
When measuring every time, the measurement time has reached to measure the end time, but liquid level is not reaching to minimum liquid
The position of position, control unit then automatically prolongs the measurement time, until liquid level reaches minimum liquid level location
Or maximum measuring time limit value；The minimum liquid level value that maximum measuring time limit value is corresponding is this survey water dress
Put minimum range Q of dischargemin, i.e. Qmin=S*Hmin/Tmax；Wherein, S is the horizontal sectional area of water tank,
TmaxFor maximum measuring time limit value, HminFor the minimum liquid level set in water tank；
When discharge reaches maximum or the minimum range surveying water device, control unit is shown by display device
Carry out prompt alarm, control equipment by communication module superior simultaneously and report correlation behavior.
Also including the cleaning step being carried out water tank, this cleaning step is as follows:
(1), the water of coal bed gas well output end is switched to bypass branch by the first control valve；
(2), close the second control valve, open the 3rd control valve and make rinse water pass through clear water water inlet pipe entrance water
In case；
(3), when liquid level reaches liquid-level switch height in water tank, the 3rd control valve is closed；
(4), control unit gathers the numerical value of turbidity sensor in water tank, and opens the second control valve by water
Water in case is discharged；
(5) if the muddy angle value of water is higher than set threshold value in the collected water tank of control unit, then
Repeat the above steps (2)～(4), until muddy angle value is less than set threshold value in water tank；
(6), coal bed gas well output water is switched to water tank water intake end by the first control valve, recover coal bed gas
Well surveying water measures.
Also wrapping and coal bed gas well is produced the step that the turbidity of water measures, this turbidity measuring process is as follows:
Before a, measurement coal bed gas well produce water chaotic degree, first according to cleaning step automatic washing water tank, to avoid water
The coal dust residue impact on measuring in case；
After b, water tank clean automatically, coal bed gas well produces water and switches to water tank water intake end by the first control valve,
Closing the second control valve, water tank starts that coal bed gas well is produced water and stores；
C, when in water tank, liquid level reaches liquid-level switch height, control unit collection also records turbidity and passes
The numerical value of sensor, this numerical value is current coal bed gas well and produces the turbidity of water；
D, when coal bed gas well water chaotic degree exceedes set threshold value, control unit is shown by display device
Carry out prompt alarm, control equipment by communication module superior simultaneously and report correlation behavior；
E, open the second control valve of water tank water side, the water stored in emptying water tank；
F, produce water chaotic degree situation according to coal bed gas well, automatically adjust the frequency of water tank auto-flushing.
Upper coal bed gas Intelligent testing water method, it is possible to automated intelligent coal seam aquifer yield and turbidity are carried out effectively
Measure, in order to grasp the production status of coal bed gas well in time.Meanwhile, when the situation occurring that coal dust quantum of output is big,
Can automatically control the cleaning of water tank surveying water device, it is to avoid coal dust deposition in water tank, and affect
The accuracy measured, thus reduce workload and the work difficulty that manual site safeguards.
Claims (8)
1. a coal bed gas Intelligent testing water device, it is characterised in that include that water tank, water tank have and coal bed gas
Well produces the water inlet end of water end (W.E.) connection, and the water side that the water in supply tank is discharged, and is equipped with on water inlet end
Control to produce water end (W.E.) from coal bed gas well and enter the first control valve of Water in Water Tanks, water side is equipped with control water tank
The second control valve that interior water flows out；
The liquid level detector that liquid level in water tank is detected it is provided with in water tank；
And for gathering liquid level that liquid level detector detects and recording liquid level detector and reach to set liquid
Time required for the height value of position, and control above-mentioned first control valve, control that the second control valve is switched on or off
Unit processed；
Described control unit connects to be had and the outside communication module forming communication, and is used for the aobvious of video data
Showing device.
A kind of coal bed gas Intelligent testing water device the most according to claim 1, it is characterised in that described water
Box top connects the air vent having for being discharged by gas in water tank.
A kind of coal bed gas Intelligent testing water device the most according to claim 1, it is characterised in that described water
It is provided with the turbidity sensor of water chaotic degree in detecting water tank in case, water tank is also communicated with clear water
Water inlet pipe, is equipped with the 3rd control valve controlled in external water entrance water tank, described muddiness at clear water water inlet pipe
The muddy signal of detection is transferred to control unit by degree sensor, and control unit controls described 3rd control valve
It is switched on or off.
A kind of coal bed gas Intelligent testing water device the most according to claim 1, it is characterised in that described water
Being provided with liquid-level switch in case, when the liquid level in water tank reaches to set liquid level, liquid-level switch produces and triggers letter
Number and transmit a signal to control unit, described control unit then sends the signal of unlatching to the second control valve.
5. a coal bed gas Intelligent testing water method, it is characterised in that comprise the steps,
S1, turns off the second control valve of water tank water side, makes water tank form a tank；Open coal seam
Gas well produces the first control valve that water end (W.E.) is middle with water tank, and the water making coal bed gas well produce water end (W.E.) discharge enters in water tank；
S2, after coal bed gas well produces the water entrance water tank of water end (W.E.), the liquid level in water tank is examined by liquid level detector
Survey and the liquid level signal detected is transferred to control unit, when liquid level detector starts to detect liquid level, control
Unit processed starts timing；
Liquid level change when control unit timing time reaches to measure the end time, in control unit record water tank
Value, and generation amount Q this time measuring coal bed gas well product water end (W.E.) is calculated according to equation below,
Q=S* (H2-H1)/(T2-T1),
Wherein, S is the horizontal sectional area of water tank,
T1For measuring initial time,
T2For measuring the end time,
H1For T1Time water tank in liquid level,
H2For T2Time water tank in liquid level；
S3, in step s 2, control unit timing time reaches the liquid measured the end time and record in water tank
After the changing value of position, control unit opens the second control valve, discharges the water in water tank, when reaching to measure next time
During the time, circulate above-mentioned steps S1, S2.
A kind of coal bed gas Intelligent testing water method the most according to claim 5, it is characterised in that at water tank
Inside being provided with liquid-level switch, control unit automatically adjusts according to the discharge change entered in water tank and measures every time
Persistent period；
When measuring every time, the measurement time not up to measures the end time, but liquid level has reached liquid level and opened
Close location, then control unit controls the second electrically-controlled valve unlatching, by the water-retention emptying of water tank institute；Control single
The measurement time is started to the time interval record reaching liquid-level switch position by unit, and automatically shortens and survey next time
The measurement time of amount, until it reaches the least measuring time limit value；The least measuring time limit value correspondence liquid level
The water yield of the position of the switch is the maximum range of this survey water device discharge, i.e. Qmax=S*Hmax/Tmin；
When measuring every time, the measurement time has reached to measure the end time, but liquid level is not reaching to minimum liquid
The position of position, control unit then automatically prolongs the measurement time, until liquid level reaches minimum liquid level location
Or maximum measuring time limit value；The minimum liquid level value that maximum measuring time limit value is corresponding is this survey water dress
Put the minimum range of discharge, i.e. Qmin=S*Hmin/Tmax；
When discharge reaches maximum or the minimum range surveying water device, control unit is shown by display device
Carry out prompt alarm, control equipment by communication module superior simultaneously and report correlation behavior.
A kind of coal bed gas Intelligent testing water method the most according to claim 5, it is characterised in that also include
The cleaning step that water tank is carried out, this cleaning step is as follows:
(1), the water of coal bed gas well output end is switched to bypass branch by the first control valve；
(2), close the second control valve, open the 3rd control valve and make rinse water pass through clear water water inlet pipe entrance water
In case；
(3), when liquid level reaches liquid-level switch height in water tank, the 3rd control valve is closed；
(4), control unit gathers the numerical value of turbidity sensor in water tank, and opens the second control valve by water
Water in case is discharged；
(5) if the muddy angle value of water is higher than set threshold value in the collected water tank of control unit, then
Repeat the above steps (2)～(4), until muddy angle value is less than set threshold value in water tank；
(6), coal bed gas well output water is switched to water tank water intake end by the first control valve, recover coal bed gas
Well surveying water measures.
A kind of coal bed gas Intelligent testing water method the most according to claim 7, it is characterised in that it is right also to wrap
Coal bed gas well produces the step that the turbidity of water measures, and this turbidity measuring process is as follows:
Before a, measurement coal bed gas well produce water chaotic degree, first according to cleaning step automatic washing water tank, to avoid water
The coal dust residue impact on measuring in case；
After b, water tank clean automatically, coal bed gas well produces water and switches to water tank water intake end by the first control valve,
Closing the second control valve, water tank starts that coal bed gas well is produced water and stores；
C, when in water tank, liquid level reaches liquid-level switch height, control unit collection also records turbidity and passes
The numerical value of sensor, this numerical value is current coal bed gas well and produces the turbidity of water；
D, when coal bed gas well water chaotic degree exceedes set threshold value, control unit is shown by display device
Carry out prompt alarm, control equipment by communication module superior simultaneously and report correlation behavior；
E, open the second control valve of water tank water side, the water stored in emptying water tank；
F, produce water chaotic degree situation according to coal bed gas well, automatically adjust the frequency of water tank auto-flushing.
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| CN106768128A (en) * | 2017-02-22 | 2017-05-31 | 中国地质大学（武汉） | Water yield per day determines device |
| CN109470466A (en) * | 2018-12-24 | 2019-03-15 | 河北工业大学 | A kind of mist flow distribution test method of liquid level-time difference |
| 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 |
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Address after: 213000 Taihu East Road, Xinbei District, Jiangsu, China, 9-1, No., No. 1201 Applicant after: Jiangsu Shandao Kai Rui energy Polytron Technologies Inc. Address before: 213000 East Taihu Road, Xinbei District, Jiangsu, Changzhou, China 9-1 Applicant before: CHANGZHOU KAIRUI ENERGY TECHNOLOGY Co.,Ltd. |
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