CN1176741C - Comprehensive test equipment for natural gas hydrate - Google Patents

Comprehensive test equipment for natural gas hydrate Download PDF

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Publication number
CN1176741C
CN1176741C CNB031188710A CN03118871A CN1176741C CN 1176741 C CN1176741 C CN 1176741C CN B031188710 A CNB031188710 A CN B031188710A CN 03118871 A CN03118871 A CN 03118871A CN 1176741 C CN1176741 C CN 1176741C
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gas
sensor
pipeline
valve
reactor
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CN1440832A (en
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蒋国盛
吴翔
窦斌
汤凤林
宁伏龙
曾继田
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China University of Geosciences
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China University of Geosciences
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Abstract

The present invention relates to a testing device for natural gas hydrates, particularly to a comprehensive testing device for natural gas hydrates, which is characterized in that the testing device is mainly composed of a gas supply, a pressurizing device, a vacuum pump, a gas-liquid separating and collecting device, a reaction still (14), a high-low temperature testing box, a micro drilling system, a detection system, a microscopic camera system (18), a data collection system and a microcomputer data processing system (26), wherein the gas supply, the vacuum pump and the gas-liquid separating and collecting device are connected with the gas inlet (30) of the reaction still (14) by a pipeline, the reaction still (14) is connected with the pressurizing device by a gas outlet (11), and the micro drilling system is connected with the liquid flushing outlet (29) of the reaction still (14) by the pipeline and is connected with a drilling string (8) of a miniature driller; the detection system is connected with the data collection system by a conducting wire, and the data collection system and the microscopic camera system (18) are respectively connected with the microcomputer data processing system (26) by conducting wires. The testing device can be used for simulating synthesis research or decomposing test research and can be simultaneously used for research testing methods, such as drilling exploration (well) control, mining methods, etc.

Description

The gas hydrates combined test apparatus
Technical field
The present invention relates to a kind of gas hydrates experimental rig.
Background technology
Gas hydrates probings and exploitation are brand-new research fields, it as New-type fuel have huge resource potential, as the critical condition material be geological disaster under water potential inducement, as organic carbon pool Global climate change is had material impact.At present, experimental provision function both domestic and external all is more single, is mainly used in the simulation study on the synthesis, not can be used for the research technique of researchs such as probing (well) control and recovery method.
Only find to have the gas hydrates experimental rig of simple function by systems such as retrieval " SWIC ", " CNKI periodical net ", " yahoo ", be mainly used in simulation study on the synthesis or decomposition run research, have only the Russia and the U.S. to have and can be used for the test experimental rig that probing (well) control and recovery method etc. are studied, do not have to satisfy simultaneously the experimental rig that above-mentioned three aspects require.
Summary of the invention
At above-mentioned deficiency, the object of the present invention is to provide a kind of gas hydrates combined test apparatus with multiple function.It also can be used for the research technique of researchs such as probing (well) control and recovery method when being used to simulate study on the synthesis or decomposition run research.
To achieve these goals, technical scheme of the present invention is: the gas hydrates combined test apparatus, it is mainly by air feed and supercharging device, vavuum pump and gas-liquid separation harvester, reactor 14, high-low temperature test chamber, little drill system, detection system, microscope camera system 18, data collecting system, computer data processing system 26 is formed, air feed is connected with the air inlet 30 of reactor 14 by pipeline with supercharging device, reactor 14 is connected with the gas-liquid separation harvester with vavuum pump by its gas vent 11, and little drill system is connected and is connected with drill string 8 by microdrill 33 with the flushing liquor outlet 29 of reactor 14 by pipeline; Described data collecting system mainly is made up of multifunctional data acquisition card 1, multifunctional data acquisition card 23, described detection system mainly is made up of temperature and pressure detecting system, drilling parameter detection system, temperature is connected with multifunctional data acquisition card 23 by lead with pressure detecting system, and the drilling parameter detection system is connected with multifunctional data acquisition card 1 by lead; Multifunctional data acquisition card 1, multifunctional data acquisition card 23, microscope camera system 18 are connected with computer data processing system 26 by lead respectively;
Described reactor 14 mainly is made up of drill string 8, dynamic sealing device 9, hoop 12, drill bit 13, loam cake 31, cylinder body 32, on cover and be provided with gas vent 11, flushing liquor outlet 29, cylinder body is provided with transparent windows 15, transparent windows 16, temperature sensor 19, air inlet 30, be reaction chamber in the cylinder body, loam cake 31 and cylinder body 32 are by binding round 12 sealed fixedlying connected; On cover and have the drilling rod hole, drill string 8 passes the drilling rod hole, drill string 8 is connected by dynamic sealing device 9 with loam cake, an end of drill string 8 is connected with drill bit 13 and is positioned at reaction chamber, the other end is connected with microdrill; Temperature sensor 19 is 3, and 3 temperature sensors 19, pressure sensors 27 are positioned at 14 ends of reactor;
Described little drill system is made up of microdrill, valve V2, liquid collecting container 25, high pressure slurry pump, and microdrill is connected with drill string 8; Valve V2 one end is connected with the flushing liquor outlet 29 of reactor 14 by pipeline, the other end is connected with liquid collecting container 25 by pipeline, pipeline between valve V2 and the liquid collecting container 25 is provided with liquid flow sensor 22, and liquid collecting container 25 is connected with high pressure slurry pump by pipeline; Bit weight sensor 2, instant drilling speed sensor 3, flushing liquor flow sensor 4, speed probe 5, torque sensor 6, drilling depth sensor 7 are positioned on the microdrill 33;
Reactor 14, detection system, microscope camera system 18 are arranged in high-low temperature test chamber 28.
Described air feed and supercharging device mainly are made up of booster pump 21, valve V4, booster pump 21 is connected with valve V4 by pipeline, pipeline between booster pump 21 and the valve V4 is provided with gas flow sensor 20, and valve V4 is connected with the air inlet 30 of reactor 14 by pipeline.
Described vavuum pump and gas-liquid separation harvester mainly are made up of valve V1, vavuum pump 24, valve V3, gas-liquid separator 17, and vavuum pump 24 is connected with valve V1 by pipeline, and valve V1 is connected with the gas vent 11 of reactor 14 by pipeline; Gas-liquid separator 17 is connected with valve V3 by pipeline, and valve V3 is communicated with pipeline between gas vent 11 and the valve V1 by pipeline, and its pipeline is provided with gas flow sensor 10.
Described detection system is made up of temperature and pressure detecting system, drilling parameter detection system, temperature and pressure detecting system are made up of temperature sensor 19, liquid flow sensor 22, gas flow sensor 10, gas flow sensor 20, pressure sensor 27, and 3 temperature sensors 19, liquid flow sensor 22, gas flow sensor 10, gas flow sensor 20, pressure sensors 27 are connected with multifunctional data acquisition card 23 by lead respectively; The drilling parameter detection system is made up of bit weight sensor 2, instant drilling speed sensor 3, flushing liquor flow sensor 4, speed probe 5, torque sensor 6, drilling depth sensor 7, and bit weight sensor 2, instant drilling speed sensor 3, flushing liquor flow sensor 4, speed probe 5, torque sensor 6, drilling depth sensor 7 are connected with multifunctional data acquisition card 1 by lead respectively.
Described data collecting system mainly is made up of multifunctional data acquisition card 1, multifunctional data acquisition card 23, and multifunctional data acquisition card 1, multifunctional data acquisition card 23 are connected with computer data processing system 26 by lead respectively.
The microimaging head of described microscope camera system 18 is positioned at outside the transparent windows 16.
The present invention can satisfy multiple scientific experimentation research, has advantages such as multiple functional, that automaticity is high, research field is extensive, representativeness is strong.This covering device organically combines experimental rig and miniature rig floor, and to simulation actual well drilled condition, exploration and the developmental research of carrying out gas hydrates have great practical significance and scientific meaning.Can carry out pure natural gas hydrate and the actual ore bed gas hydrates synthetic test of simulation by device; Carry out pure natural gas hydrate and the actual ore bed gas hydrates decomposition run of simulation; Carry out gas hydrates drilling process control test; Gas hydrate mining methods is studied; To creep in pipeline and the oil and gas pipeline form hydrate prevent method research; The novel storaging and transport technology of research natural gas; Can be used for drillability classification and physico-mechanical properties research are carried out in the gas hydrates stratum; Can carry out above-mentioned project research to the multi-component gas hydrate.
The present invention has following function:
1, carries out pure natural gas hydrate and simulate the synthetic test of actual ore bed gas hydrates;
2, carry out pure natural gas hydrate and simulate the decomposition run of the gas hydrates of actual ore bed;
3, carry out gas hydrates drilling process control test;
4, can study gas hydrate mining methods by testing 1,2,3;
5, can study preventing the method that forms hydrate in wellbore tubular and the oil and gas pipeline by testing 1,2,3;
6, by 1,2 storaging and transport technologies that can study natural gas;
7, can be used for drillability classification and physico-mechanical properties research are carried out in the gas hydrates stratum;
8, can carry out 1,2,3,4,5,6,7 research to the multi-component gas hydrate.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is an operation principle schematic diagram of the present invention
Fig. 3 is a reactor structural representation of the present invention
1-multifunctional data acquisition card wherein, the 2-bit weight sensor, the instant drilling speed sensor of 3-, 4-flushing liquor flow sensor, the 5-speed probe, the 6-torque sensor, 7-drilling depth sensor, the 8-drill string, the 9-dynamic sealing device, the 10-gas flow sensor, the 11-gas vent, the 12-hoop, the 13-drill bit, the 14-reactor, the 15-transparent windows, the 16-transparent windows, the 17-gas-liquid separator, the 18-microscope camera system, the 19-temperature sensor, the 20-gas flow sensor, the 21-booster pump, the 22-liquid flow sensor, the 23-multifunctional data acquisition card, the 24-vavuum pump, the 25-liquid collecting container, the 26-computer data processing system, the 27-pressure sensor, the 28-high-low temperature test chamber, the outlet of 29-flushing liquor, the 30-air inlet, the 31-loam cake, the 32-cylinder body, the 33-microdrill, the V1-valve, the V2-valve, the V3-valve, the V4-valve.
The specific embodiment
As shown in Figure 1, the gas hydrates combined test apparatus, it is mainly by air feed and supercharging device, vavuum pump and gas-liquid separation harvester, reactor 14, high-low temperature test chamber, little drill system, detection system, microscope camera system 18, data collecting system, computer data processing system 26 is formed, air feed is connected with the air inlet 30 of reactor 14 by pipeline with supercharging device, reactor 14 is connected with the gas-liquid separation harvester with vavuum pump by its gas vent 11, and little drill system is connected and is connected with drill string 8 by microdrill with the flushing liquor outlet 29 of reactor 14 by pipeline; Described data collecting system mainly is made up of multifunctional data acquisition card 1, multifunctional data acquisition card 23, described detection system mainly is made up of temperature and pressure detecting system, drilling parameter detection system, temperature is connected with multifunctional data acquisition card 23 by lead with pressure detecting system, and the drilling parameter detection system is connected with multifunctional data acquisition card 1 by lead; Multifunctional data acquisition card 1, multifunctional data acquisition card 23, microscope camera system 18 are connected with computer data processing system 26 by lead respectively.
Described air feed and supercharging device mainly are made up of booster pump 21, valve V4, booster pump 21 is connected with valve V4 by pipeline, pipeline between booster pump 21 and the valve V4 is provided with gas flow sensor 20, and valve V4 is connected with the air inlet 30 of reactor 14 by pipeline.
Described vavuum pump and gas-liquid separation harvester mainly are made up of valve V1, vavuum pump 24, valve V3, gas-liquid separator 17, and vavuum pump 24 is connected with valve V1 by pipeline, and valve V1 is connected with the gas vent 11 of reactor 14 by pipeline; Gas-liquid separator 17 is connected with valve V3 by pipeline, and valve V3 is communicated with pipeline between gas vent 11 and the valve V1 by pipeline, and its pipeline is provided with gas flow sensor 10.
As shown in Figure 3, described reactor 14 mainly is made up of drill string 8, dynamic sealing device 9, hoop 12, drill bit 13, loam cake 31, cylinder body 32, on cover and be provided with gas vent 11, flushing liquor outlet 29, cylinder body is provided with transparent windows 15, transparent windows 16, temperature sensor 19, air inlet 30, be reaction chamber in the cylinder body, loam cake 31 and cylinder body 32 are by binding round 12 sealed fixedlying connected; On cover and have the drilling rod hole, drill string 8 passes the drilling rod hole, drill string 8 is connected by dynamic sealing device 9 with loam cake, an end of drill string 8 is connected with drill bit 13 and is positioned at reaction chamber, the other end is connected with microdrill; Temperature sensor 19 is 3, and 3 temperature sensors 19, pressure sensors 27 are positioned at 14 ends of reactor.
Described little drill system is made up of microdrill, valve V2, liquid collecting container 25, high pressure slurry pump, and microdrill is connected with drill string 8; Valve V2 one end is connected with the flushing liquor outlet 29 of reactor 14 by pipeline, the other end is connected with liquid collecting container 25 by pipeline, pipeline between valve V2 and the liquid collecting container 25 is provided with liquid flow sensor 22, and liquid collecting container 25 is connected with high pressure slurry pump by pipeline; Bit weight sensor 2, instant drilling speed sensor 3, flushing liquor flow sensor 4, speed probe 5, torque sensor 6, drilling depth sensor 7 are positioned on the microdrill 33.
Described detection system is made up of temperature and pressure detecting system, drilling parameter detection system, temperature and pressure detecting system are made up of temperature sensor 19, liquid flow sensor 22, gas flow sensor 10, gas flow sensor 20, pressure sensor 27, and 3 temperature sensors 19, liquid flow sensor 22, gas flow sensor 10, gas flow sensor 20, pressure sensors 27 are connected with multifunctional data acquisition card 23 by lead respectively; The drilling parameter detection system is made up of bit weight sensor 2, instant drilling speed sensor 3, flushing liquor flow sensor 4, speed probe 5, torque sensor 6, drilling depth sensor 7, and bit weight sensor 2, instant drilling speed sensor 3, flushing liquor flow sensor 4, speed probe 5, torque sensor 6, drilling depth sensor 7 are connected with multifunctional data acquisition card 1 by lead respectively.
Described data collecting system mainly is made up of multifunctional data acquisition card 1, multifunctional data acquisition card 23, and multifunctional data acquisition card 1, multifunctional data acquisition card 23 are connected with computer data processing system 26 by lead respectively.
Reactor 14, detection system, microscope camera system 18 are arranged in high-low temperature test chamber 28.
The microimaging head of described microscope camera system 18 is positioned at outside the transparent windows 16.
Device is formed description and important technological parameters
Fig. 1 is a gas hydrates combined test apparatus schematic diagram.
1, reactor is to be engaged in the essential core apparatus of the various experimental studies of gas hydrates, and the supply of gas adopts pressure to reach as high as 50Mpa in the reactor, and flow is the high-pressure pump of 20L/min.
2, microscope camera system adopts the Pixera Professional CCD optics amplification imaging system of automatic light source, and its operating distance is 114mm, and field range is 15.6 * 20.8~2.4 * 3.2mm, and multiplication factor (17 " display) is 54~378 *.Microscope camera system by the transparent observing window observe the synthetic of hydrate with decompose and the probing process of the test in the trickle situation that occurs, and directly be stored in the hard disk of computer after observed image amplified by microimaging.
3, the reactor loam cake connects microdrill by drilling rod, microdrill is used as material in the stirred tank when the synthesis of natural gas hydrate, can implement the rotary drilling experiment when creeping into experiment, maximum pressure-bearing was 35Mpa when drilling rod fed, it is 100mm that drilling rod feeds range, the drilling rod maximum (top) speed is 500rpm, and the drilling rod maximum gauge is Φ 25mm.The supply of flushing liquor adopts maximum pressure can reach 60Mpa, the high-pressure pump of flow 150L/min.
4, the lifting of temperature of reaction kettle, maintenance realize by high low temperature experimental box HLT705P; this system adopts the import temperature control instrument; the import refrigeration machine; numeral shows; have multinomial defencive functions such as operating room's overtemperature, refrigeration machine superpressure and overload, overheat of compressor, power supply phase shortage, heater short circuit, SUS304 #The mirror face stainless steel inner bag, shell cold-rolled steel sheet electrostatic plastic spraying, new technologies such as energy adjustment.Tape recording instrument, RS232 computer communication interface.Its swept volume of a single chamber is 650 * 800 * 950mm, appearance and size 1350 * 1280 * 1850mm, and temperature range-70~100 ℃, temperature error is in ± 0.5 ℃.
5, detection system mainly contains temperature sensor, liquid flow sensor, gas flow sensor, pressure sensor, pump pressure sensor, gas cylinder and can debug safe pressure table, the pressure of the drill, rotating speed, moment of torsion, displacement transducer and data acquisition/control card etc.
Temperature sensor: RT-LS Pt100 is used for detecting in real time in the still radially temperature;
Liquid flow sensor: LUGB-B 2201 is used to detect the flow of drilling mud;
Gas flow sensor: LUGB-B 2101 is used to detect air feed, divides the flow of venting one's spleen;
Pressure sensor: DG1205-GE-B-3-60/FE is used for the pressure in the detection reaction still;
Pump pressure sensor: DG1205-00-A-60/FE is used to detect the pump pressure of drilling mud pump discharge;
Bit weight sensor: BK-3-50 is used to detect the pressure of the drill that microdrill feeds;
Speed probe: KN2000 photoelectric reflection formula tachometer of measuring is used to measure the rotating speed of rig;
Torque sensor: ACK-205 type torque sensor is used to measure the rotation torque of rig;
Displacement transducer; The HP-LVDT-GA-150 sensor is used to measure the drilling depth of probing;
Data acquisition/control card: grind the analog signal input card that magnificent PCI-1713AD bus is isolated: 12 bit resolutions, the sample frequency of 100k, 32 tunnel single-ended or 16 road difference analogue amounts inputs, 4k buffer memory, be used for each road analog signal amount is converted to digital quantity, on microcomputer, monitor; Grind 16 8 tunnels analogy amounts of magnificent PCI-1723DA output card, be used for the digital quantity of control signal is converted to analog quantity, promote executive component; Grind magnificent PCI-1750 32 channel separation digital quantity input-output cards, be used for the input and the output of digital quantity.Whole employing distributed data acquisition and the control system intended, integrated digital amount input/output module and analog quantity input/output module adopt ADAM-5090 serial communication module, unified power supply power supply.
Test principle and manipulate method
Its operation principle as shown in Figure 2.
Synthesizing and decomposing of hydrate can make it form hydrate and decomposition under given conditions by regulating the chemical composition of controlling temperature, pressure, water and simulate environments such as subsea and permafrost soil layer etc. in reactor.Full-automatic microcomputer control, record are automatically adopted in whole temperature, pressure control.
Realize the communication of microcomputer and high-low temperature test chamber HLT705P and can carry out remote detection and control automatically by the RS485 communication interface chamber.
Each action of little brill experimental bench, comprise power startup, stop, the lifting of drilling tool, flushing liquor pressure, flow etc. all realize intelligent program-controlled.
Be that example explanation is utilized the test principle of this invention and manipulated method with synthetic test of gas hydrates below with decomposition run and the control of gas hydrates drilling process.
1, the synthetic and decomposition run of gas hydrates
The main purpose of this part test is to grasp gas hydrates physicochemical properties, formation condition, one-tenth ore deposit and mechanical characteristic, is lower part gas hydrates drilling process control test stockpile.Can keep pressure earlier at the trial, control the generation and the decomposition of hydrate by changing temperature, but also holding temperature be constant, control the generation and the decomposition of hydrate by changing pressure.Test principle and to manipulate method as follows:
1. at first reactor is cleaned up with distilled water or natural water, inject then and account for half distilled water or natural water of container volume, again reactor and whole high-pressure duct system are vacuumized, in water till the no bubble.Use high-purity methane gas flushing reactor and pressure duct then several times, purpose is the air of getting rid of as much as possible wherein.
2. reactor and temperature sensor are assembled the centre that the back is put into high-low temperature chamber with micro imaging system well by the loam cake and the sealing and fixing of high-low temperature chamber, regulate microscopical object lens position and make it to be adjacent to an artificial crystal window mouth of aiming on the reactor.Open the Qianmen and install turnover air pipe system.A low temperature resistant camera is aimed at another artificial crystal window mouth and fixed the position.Shut the Qianmen, start high-low temperature test chamber, suggestion is a boundary with the zero degree, earlier from low temperature, until allowing that minimum temperature heats up again.
3. start air compressor machine checking after each depot siding and joint connect, open gas source valve reactor is pressurizeed.Starting little brill simultaneously stirs container.By the Programmable Temperature control panel of high-low temperature chamber, set test temperature scope and temperature retention time
4. gather Various types of data information by the various kinds of sensors that is installed in the system, comprise information such as temperature, pressure, flow, image and video, and show on computers.Can draw correlation curve automatically and make suitable judgement according to the data program of collecting, draw the temperature and pressure that balances each other of hydrate.
2, gas hydrates drilling process control test
This part test is on the basis of separating tests forwardly, simulating actual seabed or plateau permafrost gas hydrates contains the stratum and it is carried out miniature drilling test, according to the temperature, pressure phase equilibrium line that draws previously, find the suitable control method of creeping into, particularly find suitable mud circulation medium, find the appropriate process method as exploration and development of natural gas hydrate.Test is also carried out in two kinds of situation, and the one, in purer hydrate, creep into, a kind of is to carry out in the simulated formation that is mingled with layer of sand, argillic horizon, tiny landwaste layer.Test principle and to manipulate method as follows:
5. by 1. 2. 3. step synthesis of natural gas hydrate as much as possible of first, holding temperature and pressure are constant, start microdrill and creep into, and the control rate of penetration is until the bottom of getting into reactor.Purpose to pure water compound probing has two, and the one, draw the bored rank of pure water compound; The 2nd, record the thermal conductivity factor of hydrate according to three temperature sensors that are arranged in reactor bottom.Do not need circulating mud in this case, the gas of generation is collected the sky steel cylinder through the gas outlet.
6. sand, clay, tiny landwaste, distilled water are put in the reactor and compacting (hole is arranged certainly) is filled into 3/4 place of reactor total height or higher.By first part 1. 2. 3. step generate gas hydrates, stop ventilation, holding temperature and pressure are constant, start microdrill it is crept into, the control rate of penetration is until the bottom of getting into reactor.Inject circulatory mediator by drilling rod in the drilling process, the gas-liquid mixture fluid that flows out reactor is separated, can analyze the mud of which kind of type and help creeping into control by measuring isolated gas flow, it is more rational can analyzing which kind of drilling technical parameter by the flow sensor on the pressure of the drill on little brill, speed probe and the slush pump.
7. set up and verify the thermal pressure model of gas hydrates according to the temperature, pressure data on flows that collects, find a more common model to instruct following natural gas hydrate exploration and exploitation with this.
It can satisfy multiple scientific experimentation research the present invention, has advantages such as multiple functional, that automaticity is high, research field is extensive, representativeness is strong.This covering device organically combines experimental rig and miniature rig floor, and to simulation actual well drilled condition, exploration and the developmental research of carrying out gas hydrates have great practical significance and scientific meaning.Simultaneously, it can also carry out synthetic, the decomposition run of gas hydrates, can be used for gas hydrates and becomes geology researchs such as ore deposit feature, condition, and can be used for obstruction of oil and gas pipeline hydrate and the research of gas hydrates accumulating new method.

Claims (6)

1, the gas hydrates combined test apparatus, it is characterized in that it is mainly by air feed and supercharging device, vavuum pump and gas-liquid separation harvester, reactor (14), high-low temperature test chamber, little drill system, detection system, microscope camera system (18), data collecting system, computer data processing system (26) is formed, air feed is connected with the air inlet (30) of reactor (14) by pipeline with supercharging device, reactor (14) is connected with the gas-liquid separation harvester with vavuum pump by its gas vent (11), and little drill system is connected and is connected with drill string (8) by microdrill with the flushing liquor outlet (29) of reactor (14) by pipeline; Described data collecting system mainly is made up of multifunctional data acquisition card (1), multifunctional data acquisition card (23), described detection system mainly is made up of temperature and pressure detecting system, drilling parameter detection system, temperature is connected with multifunctional data acquisition card (23) by lead with pressure detecting system, and the drilling parameter detection system is connected with multifunctional data acquisition card (1) by lead; Multifunctional data acquisition card (1), multifunctional data acquisition card (23), microscope camera system (18) are connected with computer data processing system (26) by lead respectively;
Described reactor (14) mainly is made up of drill string (8), dynamic sealing device (9), hoop (12), drill bit (13), loam cake (31), cylinder body (32), on cover and be provided with gas vent (11), flushing liquor outlet (29), cylinder body is provided with transparent windows (15), transparent windows (16), temperature sensor (19), air inlet (30), in the cylinder body is reaction chamber, and (12) are sealed fixedlys connected loam cake (31) by binding round with cylinder body (32); On cover and have the drilling rod hole, drill string (8) passes the drilling rod hole, drill string (8) is connected by dynamic sealing device (9) with loam cake, an end of drill string (8) is connected with drill bit (13) and is positioned at reaction chamber, the other end is connected with microdrill; Temperature sensor (19) is 3, and 3 temperature sensors (19), pressure sensor (27) are positioned at reactor (14) end;
Described little drill system is made up of microdrill (33), valve (V2), liquid collecting container (25), high pressure slurry pump, and microdrill (33) is connected with drill string (8); Valve (V2) end is connected with the flushing liquor outlet (29) of reactor (14) by pipeline, the other end is connected with liquid collecting container (25) by pipeline, pipeline between valve (V2) and the liquid collecting container (25) is provided with liquid flow sensor (22), and liquid collecting container (25) is connected with high pressure slurry pump by pipeline; Bit weight sensor (2), instant drilling speed sensor (3), flushing liquor flow sensor (4), speed probe (5), torque sensor (6), drilling depth sensor (7) are positioned on the microdrill (33);
Reactor (14), detection system, microscope camera system (18) are arranged in high-low temperature test chamber (28).
2, gas hydrates combined test apparatus according to claim 1, it is characterized in that described air feed and supercharging device mainly be made up of booster pump (21), valve (V4), booster pump (21) is connected with valve (V4) by pipeline, pipeline between booster pump (21) and the valve (V4) is provided with gas flow sensor (20), and valve (V4) is connected with the air inlet (30) of reactor (14) by pipeline.
3, gas hydrates combined test apparatus according to claim 1, it is characterized in that described vavuum pump and gas-liquid separation harvester mainly be made up of valve (V1), vavuum pump (24), valve (V3), gas-liquid separator (17), vavuum pump (24) is connected with valve (V1) by pipeline, and valve (V1) is connected with the gas vent (11) of reactor (14) by pipeline; Gas-liquid separator (17) is connected with valve (V3) by pipeline, and valve (V3) is communicated with pipeline between gas vent (11) and the valve (V1) by pipeline, and its pipeline is provided with gas flow sensor (10).
4, gas hydrates combined test apparatus according to claim 1, it is characterized in that described detection system is by temperature and pressure detecting system, the drilling parameter detection system is formed, temperature and pressure detecting system are by temperature sensor (19), liquid flow sensor (22), gas flow sensor (10), gas flow sensor (20), pressure sensor (27) is formed, 3 temperature sensors (19), liquid flow sensor (22), gas flow sensor (10), gas flow sensor (20), pressure sensor (27) is connected with multifunctional data acquisition card (23) by lead respectively; The drilling parameter detection system is made up of bit weight sensor (2), instant drilling speed sensor (3), flushing liquor flow sensor (4), speed probe (5), torque sensor (6), drilling depth sensor (7), and bit weight sensor (2), instant drilling speed sensor (3), flushing liquor flow sensor (4), speed probe (5), torque sensor (6), drilling depth sensor (7) are connected with multifunctional data acquisition card (1) by lead respectively.
5, gas hydrates combined test apparatus according to claim 1, it is characterized in that described data collecting system mainly is made up of multifunctional data acquisition card (1), multifunctional data acquisition card (23), multifunctional data acquisition card (1), multifunctional data acquisition card (23) are connected with computer data processing system (26) by lead respectively.
6, gas hydrates combined test apparatus according to claim 1 is characterized in that the microimaging head of described microscope camera system (18) is positioned at outside the transparent windows (16).
CNB031188710A 2003-04-01 2003-04-01 Comprehensive test equipment for natural gas hydrate Expired - Fee Related CN1176741C (en)

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CN101055276B (en) * 2007-02-14 2011-08-24 中国科学院广州能源研究所 Natural gas hydrate phase balance emulation experiment device

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