CN2633414Y - Reactor for natural gas hydrate complex test - Google Patents

Reactor for natural gas hydrate complex test Download PDF

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Publication number
CN2633414Y
CN2633414Y CN 03241094 CN03241094U CN2633414Y CN 2633414 Y CN2633414 Y CN 2633414Y CN 03241094 CN03241094 CN 03241094 CN 03241094 U CN03241094 U CN 03241094U CN 2633414 Y CN2633414 Y CN 2633414Y
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CN
China
Prior art keywords
reactor
cylinder
gas
loam cake
gas hydrates
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Application number
CN 03241094
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Chinese (zh)
Inventor
蒋国盛
吴翔
窦斌
汤凤林
宁伏龙
曾继田
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中国地质大学(武汉)
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Priority to CN 03241094 priority Critical patent/CN2633414Y/en
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Publication of CN2633414Y publication Critical patent/CN2633414Y/en

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Abstract

The utility model relates to a reactor for natural gas hydrate complex test which comprises an upper cover, a cylinder body, a temperature sensor, a pressure sensor, wherein the upper cover(4) is provided with a decomposition gas outlet(3), a mud and gas outlet(11), and a cylinder body(6) in which a reaction pocket(13) is arranged is provided with a transparent observation window(7), a temperature sensor(8), a pressure sensor(9) and a gas inlet(10), and the upper cover(4) has a sealed and locked connection with the cylinder body(6). The utility model is characterized in that the upper cover (4) is provided with a drill rod hole through which a drill rod (1) passes, and the drill rod (1) is connected with the upper cover (4) through a dynamic sealing component (2), and one end of the drill rod connected with a drilling tool is arranged in the reaction pocket, and the other end of the drill rod is connected with a micro drilling machine. The utility model is a testing equipment not only used in the simulation synthesis research or the decomposition test research, but also in the drilling (well) control research and the mining method research.

Description

Gas hydrates compbined test reactor
Technical field
The utility model relates to a kind of reactor, relates to a kind of gas hydrates compbined test reactor specifically.
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.
Reactor is a core apparatus of being engaged in the indispensability of the various researchs of gas hydrates.Only find to have the reactor 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, not can be used for the research technique of researchs such as probing (well) control and recovery method, more do not have to satisfy simultaneously the reactor that above-mentioned three aspects require.
The utility model content
At above-mentioned deficiency, the purpose of this utility model is to provide a kind of gas hydrates compbined test reactor with multiple function.
To achieve these goals, the technical solution of the utility model is: gas hydrates compbined test reactor, it comprises loam cake, cylinder body, temperature sensor, pressure sensor, loam cake 4 is provided with decomposition gas outlet 3, cylinder body 6 is provided with transparent windows 7, temperature sensor 8, pressure sensor 9, air inlet 10, in the cylinder body 6 is reaction chamber 13, loam cake 4 and cylinder body 6 sealed fixedlying connected; It is characterized in that having on the loam cake 4 mud and gas vent 11, drilling rod hole, drilling rod 1 passes the drilling rod hole, and drilling rod 1 is connected by dynamic sealing assembly 2 with loam cake 4, and an end of drilling rod 1 is connected with drilling tool 14 and is positioned at reaction chamber 13, and the other end is connected with microdrill.
Described loam cake 4 and cylinder body 6 are by hoop 5 sealed fixedlying connected.
Described temperature sensor 8 is 2-6.
Described temperature sensor 8 is 3.
Described transparent windows 7 is 2-6.
Described transparent windows 7 is 2.
Described reaction chamber 13 inwalls are provided with the artificial transparent crystal 12 of one deck, and centralizer 15 is positioned on the artificial transparent crystal 12.
The utility model adopts and establishes drilling rod, and the one end is positioned at reaction chamber 13, and the other end is connected with microdrill.The reactor loam cake connects microdrill by drilling rod, and microdrill as material in the stirred tank, can be implemented the rotary drilling experiment, and send into flushing liquor when the synthesis of natural gas hydrate when creeping into experiment.The maintenance of temperature of reaction kettle, lifting can be implemented by high low temperature experimental box.Three temperature sensors can be installed in reactor bottom, in order to detect in the still radially temperature.Can be by the watch window of reactor, with the optics amplification imaging system of automatic light source, observe the synthetic of hydrate and decompose, and directly be stored in the hard disk of computer after observed situation amplified by microimaging.
The utility model 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.The utlity model has following function:
1, can be used for pure natural gas hydrate and simulate actual ore bed gas hydrates synthetic test;
2, can be used for pure natural gas hydrate and simulate actual ore bed gas hydrates decomposition run;
3, can be used for gas hydrates drilling process control test;
4, can study gas hydrate mining methods by testing 1,2,3;
5, by test 1,2,3 can to creep in pipeline and the oil and gas pipeline form hydrate prevent method research;
6, by 1,2 storaging and transport technologies that can study natural gas.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model outline drawing
Fig. 3 is cylinder body of the present utility model and superstructure schematic diagram
Wherein 1-drilling rod, 2-dynamic sealing assembly, the outlet of 3-decomposition gas, 4-loam cake, 5-hoop, 6-cylinder body, 7-transparent windows, 8-temperature sensor, 9-pressure sensor, 10-air inlet, 11-mud and gas vent, the artificial transparent crystal of 12-, 13-reaction chamber, 14-drilling tool, 15-centralizer.
The specific embodiment
As shown in Figure 1 and Figure 2, gas hydrates compbined test reactor, it comprises loam cake, cylinder body, temperature sensor, pressure sensor, loam cake 4 is provided with decomposition gas outlet 3, cylinder body 6 is provided with transparent windows 7, temperature sensor 8, pressure sensor 9, air inlet 10, in the cylinder body 6 is reaction chamber 13, loam cake 4 and cylinder body 6 sealed fixedlying connected; It is characterized in that having on the loam cake 4 mud and gas vent 11, drilling rod hole, drilling rod 1 passes the drilling rod hole, and drilling rod 1 is connected by dynamic sealing assembly 2 with loam cake 4, and an end of drilling rod 1 is connected with drilling tool 14 and is positioned at reaction chamber 13, and the other end is connected with microdrill.
As Fig. 2, shown in Figure 3, described loam cake 4 and cylinder body 6 are by hoop 5 sealed fixedlying connected.Described temperature sensor 8 is 3.Described transparent windows 7 is 2.The transparent windows 7 outer microimaging heads that are provided with of described cylinder body 6.
As shown in Figure 1, described reaction chamber 13 inwalls are provided with the artificial transparent crystal 12 of one deck, and centralizer 15 is positioned on the artificial transparent crystal 12.
Structure and composition are described:
The reactor profile is seen Fig. 2, and reactor cylinder body, loam cake figure see Fig. 3.
1, reactor is by the airtight container that titanium alloy and special steel alloy are made, symmetry has two transparent observing windows (this window is sealed by artificial lens) in the above, reactor internal diameter Φ 120mm, and external diameter Φ 160mm, interior height are 230mm, outer high 400mm.The maximum static pressure that reactor can bear reaches 50MPa, and temperature regulating range is-50~100 ℃, and movable sealing can be born maximum pressure 35Mpa when drilling rod fed.The diameter of 2 transparent observing windows is 50mm.The supply of gas adopts pressure to reach as high as 50Mpa in the reactor, and flow is that the special power of 20L/min gets the S-86-JN-30 gas-gas inflator.
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) be 54~378X.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, and microdrill as material in the stirred tank, can be implemented the rotary drilling experiment, and send into flushing liquor when the synthesis of natural gas hydrate when creeping into experiment.
4, the lifting of temperature of reaction kettle, maintenance realize by high low temperature experimental box HLT705P.Its operating temperature range is-70 ~+100
5, reactor bottom is equipped with three RT-LS Pt100 temperature sensors, in order to temperature radially in the real-time detection still.The key technical indexes:
Operating temperature range :-50~100 ℃ of static bearing pressure of maximum: 50MPa
Tank body internal diameter: Φ 120mm
High in the tank body: 230mm
Maximum pressure-bearing: 35MPa when drilling rod feeds
Drilling rod feeds range: 70mm
Drilling rod maximum (top) speed: 500rpm
Drilling rod maximum gauge: Φ 25mm
Observation window quantity: 2 observation window visual diameters: Φ 50mm
Tank body external diameter: Φ 160mm
Tank body Breadth Maximum: 255mm
Tank body total height :~400mm
Tank body gross weight :~40KG
Test principle and manipulate method:
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 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.
The utility model is a kind of multifunctional reaction still, can satisfy multiple scientific experimentation research, as can be used for pure natural gas hydrate and the actual ore bed gas hydrates synthetic test of simulation; Can be used for pure natural gas hydrate and the actual ore bed gas hydrates decomposition run of simulation; Can be used for gas hydrates drilling process control test; Can study gas hydrate mining methods; Can to creep in pipeline and the oil and gas pipeline form hydrate prevent that method from studying etc.; Can study the novel storaging and transport technology of natural gas.

Claims (7)

1, gas hydrates compbined test reactor, it comprises loam cake, cylinder body, temperature sensor, pressure sensor, loam cake (4) is provided with decomposition gas outlet (3), cylinder body (6) is provided with transparent windows (7), temperature sensor (8), pressure sensor (9), air inlet (10), in the cylinder body (6) is reaction chamber (13), loam cake (4) and sealed the fixedlying connected of cylinder body (6); It is characterized in that having on the loam cake (4) mud and gas vent (11), drilling rod hole, drilling rod (1) passes the drilling rod hole, drilling rod (1) is connected by dynamic sealing assembly (2) with loam cake (4), one end of drilling rod (1) is connected with drilling tool (14) and is positioned at reaction chamber (13), and the other end is connected with microdrill.
2, gas hydrates compbined test reactor according to claim 1, (5) are sealed fixedlys connected by binding round with cylinder body (6) to it is characterized in that described loam cake (4).
3, gas hydrates compbined test reactor according to claim 1 is characterized in that described temperature sensor (8) is 2-6.
4, according to claim 1 or 3 described gas hydrates compbined test reactors, it is characterized in that described temperature sensor (8) is 3.
5, gas hydrates compbined test reactor according to claim 1 is characterized in that described transparent windows (7) is 2-6.
6, gas hydrates compbined test reactor according to claim 1 or 5 is characterized in that described transparent windows (7) is 2.
7, gas hydrates compbined test reactor according to claim 1 is characterized in that described reaction chamber (13) inwall is provided with the artificial transparent crystal of one deck (12), and centralizer (15) is positioned on the artificial transparent crystal (12).
CN 03241094 2003-04-01 2003-04-01 Reactor for natural gas hydrate complex test CN2633414Y (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102445371A (en) * 2011-11-10 2012-05-09 大连理工大学 Integrated device for in-situ generation and decomposition of hydrate sediments and permeability measurement thereof
CN101246155B (en) * 2008-03-27 2012-05-30 中国科学院力学研究所 Experimental device for influence of gas hydrate decomposition to stable stability of structure article
CN101458245B (en) * 2008-12-31 2013-05-15 四川大学 Portable high-pressure and gas hydrate experimental device
CN104502397A (en) * 2014-12-31 2015-04-08 河南理工大学 Visual coal sample tank used in high-pressure low-temperature environment and using method thereof
CN105004849A (en) * 2015-08-14 2015-10-28 西南石油大学 Laboratory experiment device and method for solid fluidization exploitation of gas hydrate
CN106000229A (en) * 2016-06-13 2016-10-12 中山大学 Visual reaction kettle and visualized experimental system and method for replacing natural gas hydrate
CN108827754A (en) * 2018-05-25 2018-11-16 西南石油大学 A kind of crushing system for large scale gas hydrates rock sample

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN101246155B (en) * 2008-03-27 2012-05-30 中国科学院力学研究所 Experimental device for influence of gas hydrate decomposition to stable stability of structure article
CN101458245B (en) * 2008-12-31 2013-05-15 四川大学 Portable high-pressure and gas hydrate experimental device
CN102445371A (en) * 2011-11-10 2012-05-09 大连理工大学 Integrated device for in-situ generation and decomposition of hydrate sediments and permeability measurement thereof
CN102445371B (en) * 2011-11-10 2013-06-19 大连理工大学 Integrated device for in-situ generation and decomposition of hydrate sediments and permeability measurement thereof
CN104502397A (en) * 2014-12-31 2015-04-08 河南理工大学 Visual coal sample tank used in high-pressure low-temperature environment and using method thereof
CN105004849A (en) * 2015-08-14 2015-10-28 西南石油大学 Laboratory experiment device and method for solid fluidization exploitation of gas hydrate
CN106000229A (en) * 2016-06-13 2016-10-12 中山大学 Visual reaction kettle and visualized experimental system and method for replacing natural gas hydrate
CN108827754A (en) * 2018-05-25 2018-11-16 西南石油大学 A kind of crushing system for large scale gas hydrates rock sample

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