CN103015975B - Gas production rate testing simulation device of coal-bed gas vertical well - Google Patents
Gas production rate testing simulation device of coal-bed gas vertical well Download PDFInfo
- Publication number
- CN103015975B CN103015975B CN201210591726.8A CN201210591726A CN103015975B CN 103015975 B CN103015975 B CN 103015975B CN 201210591726 A CN201210591726 A CN 201210591726A CN 103015975 B CN103015975 B CN 103015975B
- Authority
- CN
- China
- Prior art keywords
- gas
- pressure sensor
- tube connector
- coal
- pid valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a gas production rate testing simulation device of a coal-bed gas vertical well. The gas production rate testing simulation device comprises a coal reservoir simulation system, a permeability testing system, a data display control system and an extraction simulation control system, wherein the coal reservoir simulation system, the permeability testing system and the extraction simulation control system are connected with one another in sequence through pipelines; and the coal reservoir simulation system, the permeability testing system and the extraction simulation control system are respectively connected with the data display control system through data wires. According to the invention, gas and water flowing states in the extraction process caused by different extraction strength, different pressure gradients at different distances from a wellhead, different coal reservoir permeabilities, different coal reservoir energies and the like can be comprehensively taken into consideration; and the gas production rates under various different situations can be more accurately metered so as to preferably know the degrees of the influences of these parameters on the gas production rate.
Description
Technical field
The invention belongs to coal bed gas safety production technique field, particularly relate to a kind of coal bed gas peupendicular hole gas production test simulator.
Background technology
Coal gas industry is the industry of " excessive risk, high investment, reciprocation cycle long ", and this industrial character determines and before the exploitation of coal bed gas is carried out on ground, carries out economic evaluation more accurately just seem extremely important.Can earn a profit, by input and output two conditional decisions.Important indicator in input comprises engineering cost and the managerial expenses such as drilling well, well logging, well cementation, pressure break and mining, the expense of engineering aspect is more transparent comparatively speaking, it is not very large for coming in and going out with reality during economic evaluation, managerial expense is rule of thumb also than being easier to estimation, also little with the discrepancy of reality.Important indicator in coal bed gas product is unit area, gas production in the unit interval, the compositions such as aerogenesis time, price.Price is estimated than being easier to.Therefore, whether unit area, gas production in the unit interval and the accurate judgement of aerogenesis time directly determine the order of accuarcy of economic evaluation.
In order to obtain production capacity more accurately, domestic and international researcher adopts the methods such as volumetric method, theoretical formula and volume combined techniques, Predicting The Recovery Efficiency method, history matching and numerical simulation to be studied production capacity.The major defect of volumetric method is too much not consider that geology and engineering factor are on the impact of production capacity, and predicting the outcome, it is very large to come in and go out with reality; Theoretical formula and volume combined techniques relative volume method are a kind of progressive, relatively consider the impact of some reservoir parameters on production capacity, capability forecasting result increases compared with volumetric method, but does not consider the pilot process of aerogenesis because of it, but with to come in and go out between actual result or larger; Predicting The Recovery Efficiency method is also based on theory calculate, and whole reservoir is processed as flight data recorder, does not also too much consider the pilot process of aerogenesis, predicts the outcome also not satisfactory.It is adopt many methods at present that method for numerical simulation combines with history matching method, mainly by mining data, adjustment analog parameter, make itself and history mining data relatively identical, but this method manual control factor is very large, there is no the area of mining data, predicting the outcome very large by artificial disturbance, and can not make more objectively and evaluating more accurately.How for different coal seam reservoirs features, draw coal bed gas well capacity more accurately, be then shoot the arrow at the target implement ground coal bed gas engineering, be the important leverage reducing construction investment risk, improve coal gas industry status in people mind.
Summary of the invention
The present invention, in order to solve weak point of the prior art, provides a kind of coal bed gas well capability forecasting coal bed gas peupendicular hole gas production test simulator accurately.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: coal bed gas peupendicular hole gas production test simulator, comprise coal seam reservoirs simulation system, permeability test macro, data display control program and extraction analog control system, coal seam reservoirs simulation system, permeability test macro sequentially pass through pipeline with extraction analog control system and are connected, and coal seam reservoirs simulation system, permeability test macro are connected with data display control program respectively by data wire with extraction analog control system.
Described coal seam reservoirs simulation system comprises three identical parts of structure, each part includes high-pressure metal cylinder, gas cylinder, first tank, first gas compressor, first tracheae, first water pipe, first water injecting pump, first gas flowmeter, first liquid flow meter, first pressure sensor, one PID valve, second pressure sensor and the 2nd PID valve, connected by the first tube connector between adjacent two high-pressure metal cylinders, gas cylinder is connected on the first tube connector by the first tracheae, first water pipe two ends are connected with the first tank and the first tracheae respectively, first gas compressor, first gas flowmeter, first pressure sensor, one PID valve is located on the first tracheae along airflow direction in turn, first water injecting pump, first liquid flow meter, second pressure sensor and the 2nd PID valve are located on the first water pipe along water (flow) direction in turn, first tube connector is provided with the 3rd pressure sensor and the 3rd PID valve, first pressure sensor, the second pressure sensor, the 3rd pressure sensor, a PID valve, the 2nd PID valve are connected with data display control program by described data wire respectively with the 3rd PID valve.
Described permeability test macro comprises gas-liquid separator, second water injecting pump, 4th pressure sensor, second liquid flow meter, second gas compressor, 5th pressure sensor, second gas flowmeter and air and liquid mixer, gas-liquid separator is connected with one of them high-pressure metal cylinder by the second tube connector, second tube connector is provided with the 6th pressure sensor and the 4th PID valve, the gas outlet of gas-liquid separator is connected by the second tracheae with the import of air and liquid mixer, the liquid outlet of gas-liquid separator is connected with the second tracheae by the second water pipe, second gas compressor, 5th pressure sensor, second gas flowmeter is located on the second tracheae along airflow direction in turn, second water injecting pump, 4th pressure sensor, second liquid flow meter is located on the second water pipe along current in turn, 4th pressure sensor, the 5th pressure sensor, the 6th pressure sensor are connected with data display control program by described data wire respectively with the 4th PID valve.
Described extraction analog control system comprises motor, velocity sensor, runner, rotating shaft, cylinder, pull bar, piston, second tank, air bag, 3rd gas flowmeter and the 3rd fluid flowmeter, cylinder head portions and sidepiece are respectively equipped with import and outlet, and the import of cylinder is connected with the outlet of air and liquid mixer by the 3rd tube connector, and the 3rd tube connector is provided with the 7th pressure sensor in turn along gas-liquid flow direction, 5th PID valve and back-pressure valve, the output shaft of motor is in transmission connection by conveyer belt and runner, velocity sensor is located on the output shaft of motor, rotating shaft is coaxially fixedly connected with runner, rotating shaft is provided with U-shaped change, one end and the change of pull bar are hinged, the other end of pull bar is connected with piston, piston is slidably connected in cylinder, the outlet of cylinder is connected with air bag and the second tank respectively by the 4th tube connector, 3rd gas flowmeter is located at and closes on the 4th tube connector of air bag, and the 3rd fluid flowmeter is located at and closes on the 4th tube connector of the second tank, 7th pressure sensor, the 5th PID valve are connected with data display control program by described data wire respectively with velocity sensor.
Described data display control program is computer.
Adopt technique scheme, the present invention is made up of four major parts such as coal seam reservoirs simulation system, permeability test macro, data display control program and extraction analog control systems.The aqueous phase that coal seam reservoirs simulation system mainly causes influencing each other apart from gas when reservoir properties under well head different distance and mining, water, gas phase relative permeability are simulated; Coal seam reservoirs simulation system is made up of three that connect identical parts, each part is made up of coal seam reservoirs analogue means, Pneumatic controller and hydraulic control device, coal seam reservoirs analogue means mainly installs the coal sample of full difference or approximately uniform permeability, in order to the permeability of simulation apart from the coal seam reservoirs of pit shaft different distance, air pressure energy when Pneumatic controller is mainly used to simulate mining in coal seam reservoirs, flow of water when hydraulic control device is mainly used to simulate mining in coal seam reservoirs.Permeability test macro mainly in mining process when gas, water single-phase flow or mixed flow time gas phase permeability, water phase permeability and gas phase relative permeability, aqueous phase relative permeability test.Data display control program is mainly monitored mining process and is carried out data acquisition.Extraction analog control system is mainly used to the mining simulating coal bed gas well, comprises mining power set and gas, aquatic products amount gathering-device.
The present invention is directed to current various Forecasting Methodology and cannot dope the vertical well capacity of coal bed gas more accurately, predict the outcome the problem quite different with objective reality, the factors such as the difference of the reservoir physical parameter of distance well head different distance and mining intensity that take into full account are on the impact of production capacity, simulated field reservoir and mining condition, the gas production of output process is measured, draw different permeability, gas production under the conditions such as different mining working systems, for the formulation of working system under different reservoir Parameter Conditions, the accurate capability forecasting of coal bed gas peupendicular hole under certain mining intensity, accurate economic evaluation provides foundation.
The present invention can be real-time measure gas in mining process, the difference of pressure reduction that the difference of current gesture, different well spacing cause etc., the difference of the aqueous phase caused, gas phase relative permeability and single permeability, comparatively accurate-metering is carried out to it, to understand the influence degree of these parameters to water, gas permeability better.
Mining Process Gas, water flow state that the present invention can consider mining intensity, cause apart from the difference of the barometric gradient, coal reservoir fracture system, coal seam reservoirs energy etc. of well head different distance, the difference of the gas production that the difference of gas, water relative permeability etc. causes, and the gas production under various different situations is measured more exactly, better to understand these parameters to the influence degree of gas production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
As shown in Figure 1, coal bed gas peupendicular hole gas production test simulator of the present invention, comprise coal seam reservoirs simulation system I, permeability test macro II, data display control program III and extraction analog control system IV, coal seam reservoirs simulation system I, permeability test macro II sequentially pass through pipeline with extraction analog control system IV and are connected, and coal seam reservoirs simulation system I, permeability test macro II are connected with data display control program III respectively by data wire 24 with extraction analog control system IV.
Coal seam reservoirs simulation system I comprises three identical parts of structure, and each part includes high-pressure metal cylinder 9, gas cylinder 1, first tank 2A, first gas compressor 3A, first tracheae 25, first water pipe 26, first water injecting pump 4A, first gas flowmeter 5A, first liquid flow meter 6A, first pressure sensor 7A, one PID valve 8A, second pressure sensor 7B and the 2nd PID valve 8B, connected by the first tube connector 27 between adjacent two high-pressure metal cylinders 9, gas cylinder 1 is connected on the first tube connector 27 by the first tracheae 25, first water pipe 26 two ends are connected with the first tank 2A and the first tracheae 25 respectively, the first gas compressor 3A, first gas flowmeter 5A, first pressure sensor 7A, one PID valve 8A is located on the first tracheae 25 along airflow direction in turn, the first water injecting pump 4A, first liquid flow meter 6A, second pressure sensor 7B and the 2nd PID valve 8B is located on the first water pipe 26 along water (flow) direction in turn, and the first tube connector 27 is provided with the 3rd pressure sensor 7C and the 3rd PID valve 8C, first pressure sensor 7A, the second pressure sensor 7B, the 3rd pressure sensor 7C, a PID valve 8A, the 2nd PID valve 8B are connected with data display control program III by described data wire 24 respectively with the 3rd PID valve 8C.
Three parts of coal seam reservoirs simulation system I are connected successively with the change of the physical parameters such as reservoir permeability during simulated range well head different distance.The coal sample that reservoir fracture development degree difference of can coalingging in high-pressure metal cylinder 9 is larger, also can fill the coal sample that cranny development degree difference is little, to simulate different regions conditions of coal bed gas reservoir better.Each part is provided with the different of air pressure energy and the flow of water in air pressure analog control device, hydraulic analogue control device simulation mining reservoir different phase.Wherein, air pressure analog control device is primarily of the experimental needs of gas cylinder 1(, the gas of gas cylinder 1 must have more weak adsorptivity to coal sample, propose and be set to He), first gas compressor 3A, first gas flowmeter 5A, first pressure sensor 7A, one PID valve 8A(PID valve can realize arranging pressure reduction, carry out by-pass valve control to open and closedown, pressure difference can free setting as the case may be, pressure reduction can from 0.01MPa ~ 10MPa not etc., PID valve can meet the pressure of below 10MPa) etc. composition, mainly through gas compressor to injecting gas pressurization with air pressure energy when PID valve controls pressurization value to simulate mining is set also can realizes opening and closing automatically of gas, to simulate the gas generation process of reservoir more realistically.Hydraulic analogue control device, primarily of compositions such as the first tank 2A, the first water injecting pump 4A of volume 3m × 2m × 2m, first liquid flow meter 6A, the second pressure sensor 7B and the 2nd PID valve 8B, pressurizes mainly through water injecting pump 4A and controls pressurization value with the 2nd PID valve 8B and carry out simulated water pressure energy system.Simulate single-phase flow and the two-phase flow of gas, water in mining process, influencing each other when Simulated gas, water flow by arranging a PID valve 8A and the 2nd PID valve 8B in air pressure, hydraulic analogue control device simultaneously.Air pressure, hydraulic analogue control device are all connected with the volume 100mm × 100mm × 100mm cube high-pressure metal cylinder 9 loading different permeability coal sample, high-pressure metal cylinder 9 is connected with the 3rd pressure sensor 7C and the 3rd PID valve 8C, wherein simulate the difference of free-boundary problem in various piece by arranging the 3rd PID valve 8C that is attached thereto, influencing each other when simulating each stage reservoir mining.The first pressure sensor 7A wherein in coal seam reservoirs simulation system I, the second pressure sensor 7B, the 3rd pressure sensor 7C, a PID valve 8A, the 2nd PID valve 8B and the 3rd PID valve 8C are all connected with data display control program III by data wire 24 etc., to realize the real-time control to experimentation.
Permeability test macro II comprises gas-liquid separator 10, second water injecting pump 4B, 4th pressure sensor 7D, second liquid flow meter 6B, second gas compressor 3B, 5th pressure sensor 7E, second gas flowmeter 5B and air and liquid mixer 11, gas-liquid separator 10 is connected with one of them high-pressure metal cylinder 9 by the second tube connector 28, second tube connector 28 is provided with the 6th pressure sensor 7F and the 4th PID valve 8D, the gas outlet of gas-liquid separator 10 is connected by the second tracheae 29 with the import of air and liquid mixer 11, the liquid outlet of gas-liquid separator 10 is connected with the second tracheae 29 by the second water pipe 30, second gas compressor 3B, 5th pressure sensor 7E, second gas flowmeter 5B is located on the second tracheae 29 along airflow direction in turn, second water injecting pump 4B, 4th pressure sensor 7D, second liquid flow meter 6B is located on the second water pipe 30 along current in turn, 4th pressure sensor 7D, the 5th pressure sensor 7E, the 6th pressure sensor 7F are connected with data display control program III by described data wire 24 respectively with the 4th PID valve 8D.
Permeability test macro II is gas, water single-phase flow permeability in simulation test mining process mainly, gas, water two-phase gas, water flow on the impact of its relative permeability separately, influencing each other to infiltrative change of measuring distance well head different distance each stage coal seam reservoirs gas, water flow.During mining, after gas and liquid stream cross high pressure metal cylinder 9, recorded the pressure now flowed out by the 6th pressure sensor 7F.4th PID valve 8D is installed between gas-liquid separator 10 and the 6th pressure sensor 7F, comes to simulate more really in coal seam reservoirs apart from the pressure loss that pit shaft different distance causes due to free-boundary problem difference by the starting pressure arranging the 4th PID valve 8D.Gas-liquid separator 10 is mainly used to an effluent air and is separated with liquid.After gas-liquid separator 10 is separated, gas circuit by the second gas compressor 3B to return to pressure when just flowing out, for the accurate-metering of subsequent gases is prepared.Water route by the second water injecting pump 4B so that pressure when returning to outflow, for the accurate-metering of follow-up water is prepared.After have recorded effluent air and fluid flow respectively by the second gas flowmeter 5B and second liquid flow meter 6B, collect through air and liquid mixer 11.The pressure, flow etc. of the gas flow flowed out by record, the flow of water, pressure and outflow high-pressure metal cylinder 9, calculated aqueous phase relative permeability, gas phase relative permeability in mining process.
Extraction analog control system IV comprises motor 12, velocity sensor 13, runner 15, rotating shaft 31, cylinder 19, pull bar 20, piston 21, second tank 2B, air bag 16, 3rd gas flowmeter 5C and the 3rd fluid flowmeter 6C, cylinder 19 end and sidepiece are respectively equipped with import and outlet, the import of cylinder 19 is connected with the outlet of air and liquid mixer 11 by the 3rd tube connector 32, 3rd tube connector 32 is provided with the 7th pressure sensor 7G in turn along gas-liquid flow direction, 5th PID valve 8E and back-pressure valve 22, the output shaft 17 of motor 12 is in transmission connection by conveyer belt 14 and runner 15, velocity sensor 13 is located on the output shaft 17 of motor 12, rotating shaft 31 is coaxially fixedly connected with runner 15, rotating shaft 31 is provided with U-shaped change 33, one end and the change 33 of pull bar 20 are hinged, the other end of pull bar 20 is connected with piston 21, piston 21 is slidably connected in cylinder 19, the outlet of cylinder 19 is connected with air bag 16 and the second tank 2B respectively by the 4th tube connector 34, 3rd gas flowmeter 5C is located at and closes on the 4th tube connector 34 of air bag 16, 3rd fluid flowmeter 6C is located at and closes on the 4th tube connector 34 of the second tank 2B, 7th pressure sensor 7G, the 5th PID valve 8E are connected with data display control program III by described data wire 24 respectively with velocity sensor 13.
Extraction analog control system IV mainly simulates the change of mining process peripheral energy system, for coal seam reservoirs simulation system I provides negative pressure, makes gas, aquatic products goes out and measure output.Extraction analog control system IV mainly comprises two parts, one drainage device being to provide power, rotating shaft 31 is driven to rotate by the output shaft 17 of motor 12 by driving-belt 14, in rotating shaft 31, change 33 drives piston 21 in cylinder 19, do the piston movement of reciprocation type by pull bar 20, the gas and water that pass through permeability test macro II are discharged, wherein motor 12 rotating speed can experimentally demand adjust, to simulate the change of mining intensity, back-pressure valve 22 is simultaneously for ensureing the continuity of permeability test macro II pressure drop in mining process.Two is collect metering device, and air bag 16 mainly collects gas, the tolerance of the 3rd gas flowmeter 5C metrics collection; Second tank 2B collects liquid, and measures the water of mining with the 3rd fluid flowmeter 6C.
Data display control program III is computer 23, real-time monitoring experiment process.Wherein by being connected with the first pressure sensor 7A in coal seam reservoirs simulation system I, the second pressure sensor 7B, the 3rd pressure sensor 7C, a PID valve 8A, the 2nd PID valve 8B and the 3rd PID valve 8C, the force value of the one PID valve 8A, the 2nd PID valve 8B and the 3rd PID valve 8C is set by computer 21, realizes controlling the production capacity of the gas in mining process, water single-phase flow or gas, water two-phase flow and different reservoir control system.By being connected with the 4th pressure sensor 7D, the 5th pressure sensor 7E, the 6th pressure sensor 7F and the 4th PID valve 8D in permeability test macro II, equal by being arranged so that the pressure before and after gas-liquid mixed.By being connected with extraction analog control system IV medium velocity sensor 13, realize the monitoring to motor 12 rotating speed.
The present invention, when working use, adopts following steps:
(1) coal sample group system is standby
Experimentally require to gather the different coal sample of permeability, make 100mm × 100mm × 100mm cube, and carry out assembled classification according to high, medium and low three levels of permeability, namely often organize in coal sample all containing high, medium and low 3 coal samples of permeability; (the different impact on free-boundary problem of simulation reservoir permeability) also can the difference of the experimentally object coal sample of choosing permeability approximate divide into groups, and equally often group is 3 coal samples.(simulation mining distance is on the impact of free-boundary problem)
(2) airtight test
According to the signal connecting line of Fig. 1, and inject a small amount of gas in system, check the tightness of whole system.
(3) grouping is arranged
In conjunction with on-the-spot well-log information, choosing 3 groups of (can experimentally object change) permeability has comparative coal sample, tests respectively often organizing coal sample.Being positioned in three high-pressure metal cylinders 9 by often organizing coal sample successively according to permeability order from high to low, according to permeability of coal sample in three high-pressure metal cylinders 9 and well logging mining data, setting gradually the 3rd PID valve 8C and the 4th PID valve 8D by free-boundary problem.According to air pressure inside, the hydraulic pressure energy system of log data setting coal seam reservoirs, namely set gradually the first gas compressor 3A and the first water injecting pump 4A; According to mining data, set the conversion that a PID valve 8A, the 2nd PID valve 8B the 3rd PID valve 8C and the 4th PID valve 8D realize gas, water list two-phase flow successively.
(4) testing permeability is arranged
Gas, water, after gas-liquid separator 10 is separated, sets the second gas compressor 3B according to the 6th pressure sensor 7F and make the 4th pressure sensor 7D, the 4th pressure sensor 7E equal with the 6th pressure sensor 7F with the second water injecting pump 4B power; When gas, water through air and liquid mixer 11 from new mixing, setting the 5th PID valve 8E makes the 7th pressure sensor 7G equal with the 6th pressure sensor 7F, the value of the second gas flowmeter 5B, second liquid flow meter 6B and the 6th pressure sensor 7F in then real time record experiment.
(5) experiment and Data Collection record
Respectively 3 groups of coal samples are tested, open gas all in coal seam reservoirs simulation system I, penstock, start motor 12 in extraction simulation system IV, test, the tolerance that in real-time collecting record extraction simulation system IV, the 3rd gas flowmeter 5C measures, the water yield that the 3rd fluid flowmeter 6C measures, the tolerance that in testing permeability system II, second gas flowmeter 5B measures and the water yield that second liquid flow meter 6B measures, data summarization and computer 23, and monitored in real time and record by computer 23, change the rotating speed of motor 12, the tolerance that record yield meter the 3rd gas flowmeter 5C measures, the change of the water yield data that the 3rd fluid flowmeter 6C measures, the change of the tolerance that in record testing permeability system II, second gas flowmeter 5B measures and the water yield that second liquid flow meter 6B measures and the 7th pressure sensor 7G, respective first gas flowmeter 5A in record coal seam reservoirs simulation system I, first liquid flow meter 6A, first pressure sensor 7A, second pressure sensor 7B, 3rd pressure sensor 7C, the change of the 4th pressure sensor 7D and the 5th pressure sensor 7E.
(6) data preparation and analysis
By the data record to measurement mechanisms such as gas flowmeter, fluid flowmeter, pressure sensors in motor 12 rotating speed, each system, analyze mining intensity (being read by velocity sensor 13), coal seam reservoirs internal energy (by gas flowmeter, fluid flowmeter and pressure sensor), mining different phase, the situation such as different phase coal seam reservoirs combination to mining gas production and gas phase, the infiltrative impact of aqueous phase.Wherein in Main Analysis mining process gas, current gesture (being affected by air pressure and the flow of water) on respective infiltrative impact; The supply of 3 different phase reservoir gas, water is on its infiltrative impact separately; The impact on production capacity during mining such as final coupling analysis mining intensity, air pressure, the flow of water, reservoir different phase.
Claims (4)
1. coal bed gas peupendicular hole gas production test simulator, it is characterized in that: comprise coal seam reservoirs simulation system, permeability test macro, data display control program and extraction analog control system, coal seam reservoirs simulation system, permeability test macro sequentially pass through pipeline with extraction analog control system and are connected, and coal seam reservoirs simulation system, permeability test macro are connected with data display control program respectively by data wire with extraction analog control system;
Described coal seam reservoirs simulation system comprises three identical parts of structure, each part includes high-pressure metal cylinder, gas cylinder, first tank, first gas compressor, first tracheae, first water pipe, first water injecting pump, first gas flowmeter, first liquid flow meter, first pressure sensor, one PID valve, second pressure sensor and the 2nd PID valve, connected by the first tube connector between adjacent two high-pressure metal cylinders, gas cylinder is connected on the first tube connector by the first tracheae, first water pipe two ends are connected with the first tank and the first tracheae respectively, first gas compressor, first gas flowmeter, first pressure sensor, one PID valve is located on the first tracheae along airflow direction in turn, first water injecting pump, first liquid flow meter, second pressure sensor and the 2nd PID valve are located on the first water pipe along water (flow) direction in turn, first tube connector is provided with the 3rd pressure sensor and the 3rd PID valve, first pressure sensor, the second pressure sensor, the 3rd pressure sensor, a PID valve, the 2nd PID valve are connected with data display control program by described data wire respectively with the 3rd PID valve.
2. coal bed gas peupendicular hole gas production test simulator according to claim 1, it is characterized in that: described permeability test macro comprises gas-liquid separator, second water injecting pump, 4th pressure sensor, second liquid flow meter, second gas compressor, 5th pressure sensor, second gas flowmeter and air and liquid mixer, gas-liquid separator is connected with one of them high-pressure metal cylinder by the second tube connector, second tube connector is provided with the 6th pressure sensor and the 4th PID valve, the gas outlet of gas-liquid separator is connected by the second tracheae with the import of air and liquid mixer, the liquid outlet of gas-liquid separator is connected with the second tracheae by the second water pipe, second gas compressor, 5th pressure sensor, second gas flowmeter is located on the second tracheae along airflow direction in turn, second water injecting pump, 4th pressure sensor, second liquid flow meter is located on the second water pipe along current in turn, 4th pressure sensor, the 5th pressure sensor, the 6th pressure sensor are connected with data display control program by described data wire respectively with the 4th PID valve.
3. coal bed gas peupendicular hole gas production test simulator according to claim 2, it is characterized in that: described extraction analog control system comprises motor, velocity sensor, runner, rotating shaft, cylinder, pull bar, piston, second tank, air bag, 3rd gas flowmeter and the 3rd fluid flowmeter, cylinder head portions and sidepiece are respectively equipped with import and outlet, the import of cylinder is connected with the outlet of air and liquid mixer by the 3rd tube connector, 3rd tube connector is provided with the 7th pressure sensor in turn along gas-liquid flow direction, 5th PID valve and back-pressure valve, the output shaft of motor is in transmission connection by conveyer belt and runner, velocity sensor is located on the output shaft of motor, rotating shaft is coaxially fixedly connected with runner, rotating shaft is provided with U-shaped change, one end and the change of pull bar are hinged, the other end of pull bar is connected with piston, piston is slidably connected in cylinder, the outlet of cylinder is connected with air bag and the second tank respectively by the 4th tube connector, 3rd gas flowmeter is located at and closes on the 4th tube connector of air bag, 3rd fluid flowmeter is located at and closes on the 4th tube connector of the second tank, 7th pressure sensor, the 5th PID valve are connected with data display control program by described data wire respectively with velocity sensor.
4. the coal bed gas peupendicular hole gas production test simulator according to claim 1 or 2 or 3, is characterized in that: described data display control program is computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210591726.8A CN103015975B (en) | 2012-12-31 | 2012-12-31 | Gas production rate testing simulation device of coal-bed gas vertical well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210591726.8A CN103015975B (en) | 2012-12-31 | 2012-12-31 | Gas production rate testing simulation device of coal-bed gas vertical well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103015975A CN103015975A (en) | 2013-04-03 |
| CN103015975B true CN103015975B (en) | 2015-06-24 |
Family
ID=47965019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210591726.8A Expired - Fee Related CN103015975B (en) | 2012-12-31 | 2012-12-31 | Gas production rate testing simulation device of coal-bed gas vertical well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103015975B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453802B (en) * | 2014-05-27 | 2017-10-17 | 贵州省煤层气页岩气工程技术研究中心 | A kind of multiple seam closes the coal bed gas pit shaft biphase gas and liquid flow analogue means adopted |
| CN104632153B (en) * | 2014-12-12 | 2017-05-10 | 中国石油天然气股份有限公司 | Experiment system for water reciprocating movement law of water drive oil and gas reservoir type gas storage |
| CN108169098B (en) * | 2018-01-15 | 2023-06-06 | 河南理工大学 | Reasonable drainage and production speed simulation device for single-phase flow stage of coalbed methane vertical well |
| CN108952678B (en) * | 2018-09-19 | 2023-04-25 | 河南理工大学 | Heterogeneous coal-bearing rock reservoir gas production contribution rate simulation test device and test method |
| CN109297858A (en) * | 2018-10-11 | 2019-02-01 | 河南理工大学 | The biological production gas simulator and its experimental method of different rate of decay coals |
| CN109736787B (en) * | 2018-11-23 | 2022-09-30 | 中联煤层气有限责任公司 | Simulation test method for water pressure propagation distance in drainage and production process of coal bed gas vertical well |
| CN109488284B (en) * | 2018-11-23 | 2022-03-18 | 中海油能源发展股份有限公司 | Simulation test device for water pressure propagation distance in drainage and production process of coal bed gas vertical well |
| CN110082280B (en) * | 2019-06-17 | 2024-04-12 | 河南理工大学 | Device and method for simulating and testing coalbed methane productivity change caused by discontinuous drainage |
| CN111396020B (en) * | 2020-02-24 | 2022-06-10 | 中石油煤层气有限责任公司 | Evaluation method for interference between coal-bed gas wells |
| CN112049610B (en) * | 2020-10-21 | 2023-09-08 | 河南理工大学 | Device and method for testing dynamic change of parameters of various coal beds during seam gas well seam production |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2252797A (en) * | 1991-02-14 | 1992-08-19 | Elf Aquitaine | Controlling production flow of an oil well 36 |
| CN201615904U (en) * | 2010-01-26 | 2010-10-27 | 煤炭科学研究总院西安研究院 | Physical simulator for production of coal bed gas |
| CN102134993A (en) * | 2011-01-22 | 2011-07-27 | 河南理工大学 | Simulation experiment device for controlling production of coal bed methane vertical well |
| CN102645396A (en) * | 2012-05-11 | 2012-08-22 | 太原理工大学 | Test method for improving coal rock permeability and device thereof |
| CN102830630A (en) * | 2012-09-29 | 2012-12-19 | 河南理工大学 | Coal bed gas multilateral well recovery control stimulation device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2385413C1 (en) * | 2008-09-30 | 2010-03-27 | Шлюмберже Текнолоджи Б.В. | Method of evaluating current gas saturation in bottomhole zone of well in deposit of volatile oil |
-
2012
- 2012-12-31 CN CN201210591726.8A patent/CN103015975B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2252797A (en) * | 1991-02-14 | 1992-08-19 | Elf Aquitaine | Controlling production flow of an oil well 36 |
| CN201615904U (en) * | 2010-01-26 | 2010-10-27 | 煤炭科学研究总院西安研究院 | Physical simulator for production of coal bed gas |
| CN102134993A (en) * | 2011-01-22 | 2011-07-27 | 河南理工大学 | Simulation experiment device for controlling production of coal bed methane vertical well |
| CN102645396A (en) * | 2012-05-11 | 2012-08-22 | 太原理工大学 | Test method for improving coal rock permeability and device thereof |
| CN102830630A (en) * | 2012-09-29 | 2012-12-19 | 河南理工大学 | Coal bed gas multilateral well recovery control stimulation device |
Non-Patent Citations (1)
| Title |
|---|
| 煤层气产出量的影响因素;卢长生;《中国煤层气》;20070731;第4卷(第3期);11-14 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103015975A (en) | 2013-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103015975B (en) | Gas production rate testing simulation device of coal-bed gas vertical well | |
| CN102562040B (en) | Dynamic evaluation instrument for high-temperature and high-pressure drilling fluid loss | |
| CN202788823U (en) | Thick-oil reservoir gas injection huff-puff oil extraction physical simulation experiment device | |
| CN101354334B (en) | System for measuring in-situ small-sized permeability coefficient based on transient pressure pulse method | |
| CN103048431B (en) | Hydrofracture propping agent settlement and permeability testing device | |
| CN101858848B (en) | Rock high-pressure permeability testing method and device based on rock displacement and hole-pressure | |
| CN107328897A (en) | A kind of slip casting plugging tester and method for simulating karst water burst | |
| CN209385105U (en) | Bored well performance experimental provision after a kind of simulation shale gas well pressure | |
| CN104727788A (en) | Three-dimensional single-well gas injection oil replacement simulation experiment device for fracture-cavity reservoir | |
| CN102748018A (en) | Device and method for thickened oil deposit gas injection huff-puff oil extraction physical simulation experiments | |
| CN104879094B (en) | A kind of downhole choke Wellbore of Gas Wells analogue experiment installation | |
| CN203037641U (en) | Device for settling hydrofracture supporting agent and testing permeability thereof | |
| CN102353750A (en) | Crude oil low-temperature oxidation experimental device for light oil reservoir air-injection oil extraction | |
| CN102373918B (en) | Oil well batch production simulation experimental facility for low-permeability reservoir | |
| CN105258840A (en) | Method for measuring optimum miscible pressure and miscible region of carbon dioxide between injection and production wells | |
| CN107884432A (en) | Measure experimental provision and method that water-oil phase in collector and delivery pipe road glues wall temperature | |
| CN104033147A (en) | Low permeability horizontal well staged fracturing coupling flow experimental device | |
| CN113252532B (en) | Simulation device for breakthrough of abnormal high-temperature and high-pressure stratum sand body through seepage barrier | |
| CN105158002B (en) | A kind of method for diagnosing faults of the Heat Exchanger in Circulating Water System based on vibration signal | |
| CN107725028A (en) | A kind of horizontal well AICD intelligent water-controlleds screen casing performance test system | |
| CN111720101B (en) | Simulation system and simulation method for shale gas well fracturing flowback | |
| CN207701124U (en) | A kind of horizontal well AICD intelligent water-controlleds screen casing performance test system | |
| CN203321509U (en) | Underwell storage type flow and contained water amount monitor | |
| CN202300352U (en) | Metering mechanism for multifunctional displacement physical simulation device | |
| CN109915125A (en) | A kind of snakelike horizontal well air water, oil-water two-phase flow imitative experimental appliance and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20181231 |