CN101050697A - One dimension production analogue test device for natural gas hydrate - Google Patents
One dimension production analogue test device for natural gas hydrate Download PDFInfo
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- CN101050697A CN101050697A CNA2007100274571A CN200710027457A CN101050697A CN 101050697 A CN101050697 A CN 101050697A CN A2007100274571 A CNA2007100274571 A CN A2007100274571A CN 200710027457 A CN200710027457 A CN 200710027457A CN 101050697 A CN101050697 A CN 101050697A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000012360 testing method Methods 0.000 title claims description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000003345 natural gas Substances 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 15
- 238000004088 simulation Methods 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 238000002474 experimental method Methods 0.000 claims description 64
- 239000007789 gas Substances 0.000 claims description 46
- 239000012224 working solution Substances 0.000 claims description 22
- 238000012805 post-processing Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 230000006698 induction Effects 0.000 abstract description 3
- 150000004677 hydrates Chemical class 0.000 description 17
- 238000000034 method Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000005065 mining Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000013043 chemical agent Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0099—Equipment or details not covered by groups E21B15/00 - E21B40/00 specially adapted for drilling for or production of natural hydrate or clathrate gas reservoirs; Drilling through or monitoring of formations containing gas hydrates or clathrates
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention discloses a natural gas hydrate one-dimensional production simulation experimental device. It is characterized by that its simulation experimental tube is placed in a temperature control box; the interior of said simulation experimental tube is a sealed simulation cavity. The front end of said simulation experimental tube is communicated with natural gas supply unit and working fluid supply unit by means of control valve, and its rear end is communicated with rear processing unit by means of control valve. In the interior of simulation experimental tube, natural gas supply unit, working fluid supply unit and rear processing unit an induction element is set respectively, and every induction element is electrically connected with data processing unit respectively.
Description
Technical field
The present invention relates to a kind of experimental facilities, relate in particular to a kind of one dimension production analogue test device for natural gas hydrate.
Background technology
Gas hydrates are meant a kind of cage shape crystalline solid that natural gas and water generate under uniform temperature and pressure, it meets fire is incendivity, be commonly called as " combustible ice ", the research of early stage gas hydrates mainly is in order to solve the blockage problem of pipeline, equipment in oil, gas production and the transportation, mainly is the generation that suppresses hydrate.Along with people to the deepening continuously of hydrate research, the characteristic of hydrate and be the human knowledge more and more to the influence of environment be the more important thing is that it shows as value of a kind of effective alternative energy source also benefit to give prominence to.
Gas hydrates can be present in occurring in nature in many ways, and based on the characteristics of gas hydrates, it is different with the exploitation of the conventional traditional energy.Show that it is solid that hydrate buries on the ocean bottom, molecular configuration changes in recovery process, becomes gas from solid.That is to say that hydrate undergoes phase transition in recovery process.The developing thought of the relevant gas hydrates of great majority all is to consider that at first the gas hydrates how will contain in deposit decompose basically at present, and then natural gas is adopted to ground.In general, breaking the temperature, pressure condition of gas hydrates stable existence artificially, cause it to decompose, is the main method of methane resource amount in the present development of natural gas hydrate.Existing exploitation method can be divided into following three classes substantially:
(1) heating exploitation method, the method mainly is that steam, hot water, hot salt brine or other hot fluid are pumped into the gas hydrates reservoir from ground, or adopts all multi-methods such as fire flooding, electrode original position heating to impel reservoir temperature to rise and reach decomposition of hydrate and get purpose;
(2) chemical agent extraction system, the method mainly are to utilize some chemical agent, wait such as salt solution, methyl alcohol, ethanol, ethylene glycol, glycerine to change the phase balance condition that hydrate forms, and reduce the hydrate equilibrium temperature, to reach the purpose of decomposition;
(3) step-down extraction system by reducing moving of phase equilibrium line that pressure causes that gas hydrates are stable, thereby impels gas hydrates to decompose, and the free gas under the production of water compound layer is a kind of effective ways that reduce reservoir pressure.
The exploitation that the step-down extraction system combines with heating exploitation method, chemical agent extraction system, may become one of effective ways of large scale mining gas hydrates from now on, at present, work out gas hydrates effectively, fast, economic mining method, for the large scale mining gas hydrates provide experiment basis and foundation, be the effective way of alleviating the energy pressure that grows with each passing day.
Because the geological conditions of various places is different with the composition of gas hydrates, it is different to form mechanism, so study by simulated experiment, directly instruct and reconnoitre exploitation, but current experiments equipment is relatively simple, be difficult to satisfy the research needs of present ocean gas hydrate, the professional simulation laboratory that is entirely ocean gas hydrate exploration and development service simultaneously is still few.
Summary of the invention
The object of the present invention is to provide a kind of one dimension production analogue test device for natural gas hydrate, this analogue experiment installation can the various withdrawal mechanisms of comprehensive study, production performance and various mining types are optimized and overall merit.
The present invention is achieved through the following technical solutions:
A kind of one dimension production analogue test device for natural gas hydrate, the simulated experiment pipe places in the temperature control box, simulation chamber for sealing in the simulated experiment pipe, the front end of this simulated experiment pipe is connected with natural gas feed unit, working solution feed unit by control valve and communicates, the rear end is connected with post-processing unit by control valve and communicates, be equipped with sensing element in simulated experiment pipe, natural gas feed unit, working solution feed unit, the post-processing unit, each sensing element all is electrically connected with data processing unit.
Among the present invention, the working solution feed unit is used for importing water in the simulated experiment pipe, the natural gas feed unit is used for importing natural gas in the simulated experiment pipe, and can control the working solution of input, the pressure of natural gas, temperature control box is used to control the temperature in the simulated experiment pipe, post-processing unit is with the natural gas after the simulation mining, water etc. are output outwards, the amount of natural gas that each sense element senses is imported in the simulated experiment pipe, the water yield of input, the amount of natural gas of simulation mining output, the water yield that produces after the exploitation, and temperature and pressure in the induction simulated experiment pipe, and carry out Treatment Analysis by data processing unit, can be according to the input signal output time-pressure curve of each sensing element, time-temperature curve, pressure-production curve or the like, so that each data is carried out overall merit, for the exploitation of reality provides guidance;
Further improvement of the present invention is:
Described simulated experiment pipe is transparent pipe.Transparent pipe can make things convenient for the experimenter to observe the state of the hydrate in the simulated experiment pipe, also can add camera, and the situation that camera is captured is imported computer or is used for experimenter's distant surveillance.
Described simulated experiment pipe is cylindric, in axial direction is provided with at least two temperature pick ups, pressure gauge measuring device on this cylindric simulated experiment pipe, and described sensing element comprises this temperature pick up, pressure gauge measuring device.But vertical longitudinally temperature, pressure and other parameters at least two temperature pick ups that are provided with, the pressure gauge measuring device measure analog experiment tube.Wherein, described pressure gauge measuring device is pressure sensor, differential pressure pick-up.
Described simulated experiment tubular axis is to being provided with at least two pressure temperature measuring equipments, and described at least two temperature pick ups, pressure gauge measuring device are located at respectively on each pressure temperature measuring equipment.During installation, at least two pressure temperature measuring equipments are loaded on the simulated experiment pipe, the pressure sensor on it, temperature pick up are used for temperature, the force value in the measure analog experiment tube.
Respectively be provided with an end cap with the described simulated experiment seal of tube at two axle heads of described simulated experiment pipe, connect (on end cap, also can be provided with temperature pick up, pressure gauge measuring device) by pull bar between two end caps.Two end caps make and form seal cavity in the simulated experiment pipe, are under the situation of high pressure in the simulated experiment pipe, and pull bar can guarantee that two pressure temperature measuring equipments are unlikely to come off.
Described working solution feed unit comprises working solution holding vessel, hydraulic pump, intermediate receptacle, the preheating can that is communicated with successively, the delivery outlet of working solution feed unit communicates with described simulated experiment pipe, and described sensing element comprises the balance of being located at working solution holding vessel, intermediate receptacle or preheating can below.Intermediate receptacle is when experimentation need add auxiliary agent, avoid auxiliary agent to the damage of hydraulic pump and a kind of indirect container that uses, in hydrate heat injection exploitation experiment, it is temperature required to need that preheating can is heated to experiment, and working solution is flowed through and entered in the simulated experiment pipe after the abundant heat exchange of preheating can.
Described natural gas feed unit comprises gas source, reducing valve, the gas flowmeter that is communicated with successively, and described sensing element comprises this gas flowmeter.
Described post-processing unit comprises back-pressure valve, gas-liquid separator and the gas flowmeter that is connected with this gas-liquid separator, fluid reservoir, and described sensing element comprises this gas flowmeter, is located at the balance of fluid reservoir below.Post-processing unit is mainly pointed out mouthful back pressure control and output metering, back-pressure valve is used to control back pressure pressure, gas-liquid separator is incited somebody to action gas, liquid after separating wherein, go out the amount of natural gas of simulation mining by gas flow measuring, balance is used to measure the water yield of institute's output, and this post-processing unit also can comprise liquid storage bottle, back pressure gas cylinder.
Described data processing unit comprises computer, is provided with data acquisition module, data processing module in computer.Data acquisition module is used to gather parameters such as temperature that each sensing element responds to, pressure, yield, data processing module can be data processing software or other structure, data processing module is handled the induced signal of each sensing element, to obtain curves such as time-temperature, time-pressure, temperature-yield, be used for the situation of exploitation is analyzed, to instruct actual production needs.
Description of drawings
Fig. 1 is the schematic diagram of experimental facilities of the present invention;
Description of reference numerals:
1, simulated experiment pipe, 2, temperature control box, 3, the simulation control, 4, the pressure temperature measuring equipment, 5, pull bar, 6, the working solution holding vessel, 7, hydraulic pump, 8, preheating can, 9, intermediate receptacle, 10, gas source, 11, gas flowmeter, 12, reducing valve, 13, back-pressure valve, 14, gas-liquid separator, 15, fluid reservoir, 16, temperature pick up, 17, pressure sensor, 18, differential pressure pick-up, 19, balance, 20, stop valve, 21, atmospheric valve, 22, one way valve, 23, computer, 24, end cap.
The specific embodiment
See also Fig. 1, a kind of one dimension production analogue test device for natural gas hydrate, simulated experiment pipe 1 places in the temperature control box 2, simulation chamber 3 for sealing in the simulated experiment pipe 1, the front end of this simulated experiment pipe 1 is connected with natural gas feed unit, working solution feed unit by control valve and communicates, the rear end is connected with post-processing unit by control valve and communicates, be equipped with sensing element in simulated experiment pipe 1, natural gas feed unit, working solution feed unit, the post-processing unit, each sensing element all is electrically connected with data processing unit.
Wherein, simulated experiment pipe 1 is cylindric transparent pipe, and simulated experiment pipe 1 axially is provided with four pressure temperature measuring equipments 5, is equipped with temperature pick up 16, pressure gauge measuring device (pressure gauge measuring device pressure sensor 17, differential pressure pick-up 18) on each pressure temperature measuring equipment 5; Respectively be provided with an end cap 24 with 1 sealing of simulated experiment pipe at 1 two axle heads of simulated experiment pipe, connect by pull bar 5 between two end caps 24.The working solution feed unit comprises working solution holding vessel 6, hydraulic pump 7, intermediate receptacle 9, the preheating can 8 that is communicated with successively, the delivery outlet of working solution feed unit communicates with simulated experiment pipe 1, and sensing element comprises the balance 19 of being located at working solution holding vessel 6, intermediate receptacle 9 or preheating can 8 belows; The natural gas feed unit comprises gas source 10, reducing valve 12, the gas flowmeter 11 that is communicated with successively, and sensing element comprises this gas flowmeter 11; Post-processing unit comprises back-pressure valve 13, gas-liquid separator 14 and the gas flowmeter 11 that is connected with this gas-liquid separator 14, fluid reservoir 15, and sensing element comprises this gas flowmeter 11, is located at the balance 19 of fluid reservoir 15 belows; Data processing unit comprises computer 23, is provided with data acquisition module, data processing module in computer 23.
The service behavior of one dimension production analogue test device for natural gas hydrate of the present invention is as described below:
One, gas hydrates synthesis flow in simulated experiment pipe 1 porous media:
1, back-up sand in the simulated experiment pipe 1 can be distributed in the 300 μ m-450 mu m ranges as the sand grains diameter; Tighten pull bar 5, tighten the pressure temperature measuring equipment 4 at two ends, play the effect of the compacting grains of sand in the time of sealing;
2, simulated experiment pipe 1 is placed into access experiment flow in the temperature control box 2, connects good pipeline and temperature pick up 16, pressure sensor 17;
3, pressure testing guarantees that system do not leak, in intermediate receptacle 9, fill with salt solution earlier, utilize 7 dozens of distilled water of hydraulic pump, indirectly salt solution is squeezed into simulated experiment pipe 1 by inlet, get mouth as water, gas outlet well, inject 3-5 doubly to the aqueous solution of simulated experiment pipe 1 volume, guarantee the saturated and even distribution of the aqueous solution in the pipe;
4, close outlet valve, close reducing valve 12, atmospheric valve 21, open gas source 10 valves, open stop valve 20, flow control valve is set to valve control state, slowly opens reducing valve 12, guaranteeing that gas flowmeter 11 does not progressively charge into natural gas under the situation of outrange, up to being elevated to, system pressure is higher than the required pressure of synthesized hydrate (about 2 ℃, pressure is elevated to 7-10MPa);
5, close inlet control valve, gas source 10 valves.Slowly open atmospheric valve 21 emptying, close reducing valve 12, stop valve 20 and atmospheric valve 21 after emptying finishes;
6, the sufficiently long time of system stability, the natural gas and the aqueous solution are evenly distributed in whole simulated experiment pipe 1;
The equilibrium temperature that temperature control box 2 is set is 2 ℃, and simulated experiment pipe 1 begins cooling up to reaching setting value;
7, through the sufficiently long reaction time, when system pressure no longer changed, hydrate is synthetic to finish.
In the whole experiment, accurately measure the also variation of each temperature of register system, the corresponding measurement parameter of pressure, detect the building-up process of hydrate.
Two, gas hydrates step-down decomposition process in the draft experiment pipe porous media:
1, the hydrate that obtains with the hydrate compound experiment experimentizes;
2, system keeps constant temperature, the inlet sealing, and outlet is produced with certain speed constant speed step-down (slowly step-down prevents the throttling phenomenon), outlet continuous metering gas production and aquifer yield, the omnidistance simultaneously each point pressure and temperature of accurately measuring distributes, as shown in Figure 3.
3, change pressure decay rate, repeat above experimentation, research influences the principal element of step-down exploitation effect, can estimate out optimum step-down production technique scheme.
Three, gas hydrates heat injection decomposition process in the simulated experiment pipe porous media:
1, the hydrate that utilizes the hydrate compound experiment to obtain experimentizes;
2, the initialization system initial pressure is for going out the port system back pressure, because the required pressure reduction of displacement is very little, in the experimentation, can control system outlet pressure by system's back pressure, experiment is slowly carried out, can be similar to whole system and be in isopiestic state, disturb, consider temperature factor separately thereby get rid of pressure factor as far as possible;
3, inlet is produced with certain speed constant speed injection constant-temperature hot water, outlet continuous metering gas production and aquifer yield, and omnidistance simultaneously accurately each point pressure of assay plate and Temperature Distribution are seen Fig. 4;
4, change hot water temperature, waterflood injection rate, repeat above experimentation, research influences the principal element of heating exploitation effect, can estimate out optimum heating exploitation technical scheme.
Remove in addition, one dimension production analogue test device for natural gas hydrate also can carry out the experimental study of mining types such as heating power+step-down exploitation, chemical injection exploitation in the porous media of the present invention, and compare the various recovery schemes of overall merit with heating exploitation, step-down exploitation result.
Claims (10)
1, a kind of one dimension production analogue test device for natural gas hydrate, it is characterized in that: simulated experiment pipe (1) places in the temperature control box (2), simulation chamber (3) for sealing in the simulated experiment pipe (1), the front end of this simulated experiment pipe (1) is connected with natural gas feed unit, working solution feed unit by control valve and communicates, the rear end is connected with post-processing unit by control valve and communicates, be equipped with sensing element in simulated experiment pipe (1), natural gas feed unit, working solution feed unit, the post-processing unit, each sensing element all is electrically connected with data processing unit.
2, one dimension production analogue test device for natural gas hydrate according to claim 1, it is characterized in that: described simulated experiment pipe (1) is transparent pipe.
3, one dimension production analogue test device for natural gas hydrate according to claim 1, it is characterized in that: described simulated experiment pipe (1) is for cylindric, in axial direction be provided with at least two temperature pick ups (16), pressure gauge measuring device on this cylindric simulated experiment pipe (1), described sensing element comprises this temperature pick up (16), pressure gauge measuring device.
4, as one dimension production analogue test device for natural gas hydrate as described in the claim 3, it is characterized in that: described pressure gauge measuring device pressure sensor (17), differential pressure pick-up (18).
5, as one dimension production analogue test device for natural gas hydrate as described in the claim 3, it is characterized in that: described simulated experiment pipe (1) axially is provided with at least two pressure temperature measuring equipments (5), and described at least two temperature pick ups (16), pressure gauge measuring device are located at respectively on each pressure temperature measuring equipment (5).
6, as one dimension production analogue test device for natural gas hydrate as described in the claim 5, it is characterized in that: respectively be provided with an end cap (24) with described simulated experiment pipe (1) sealing at (1) two axle head of described simulated experiment pipe, connect by pull bar (5) between two end caps (24).
7, as one dimension production analogue test device for natural gas hydrate as described in each in the claim 1 to 5, it is characterized in that: described working solution feed unit comprises working solution holding vessel (6), hydraulic pump (7), intermediate receptacle (9), the preheating can (8) that is communicated with successively, the delivery outlet of working solution feed unit communicates with described simulated experiment pipe (1), and described sensing element comprises the balance (19) of being located at working solution holding vessel (6), intermediate receptacle (9) or preheating can (8) below.
8, as one dimension production analogue test device for natural gas hydrate as described in each in the claim 1 to 4, it is characterized in that: described natural gas feed unit comprises gas source (10), reducing valve (12), the gas flowmeter (11) that is communicated with successively, and described sensing element comprises this gas flowmeter (11).
9, as one dimension production analogue test device for natural gas hydrate as described in each in the claim 1 to 4, it is characterized in that: described post-processing unit comprises back-pressure valve (13), gas-liquid separator (14) and the gas flowmeter (11) that is connected with this gas-liquid separator (14), fluid reservoir (15), and described sensing element comprises this gas flowmeter (11), is located at the balance (19) of fluid reservoir (15) below.
10, as one dimension production analogue test device for natural gas hydrate as described in each in the claim 1 to 4, it is characterized in that: described data processing unit comprises computer (23), is provided with data acquisition module, data processing module in computer (23).
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101550816B (en) * | 2009-05-20 | 2011-12-07 | 中国科学院广州能源研究所 | Three-dimensional exploitation simulated experiment apparatus for natural gas hydrate |
| CN102865066A (en) * | 2012-10-16 | 2013-01-09 | 中国石油大学(华东) | Experiment device and method for deepwater shaft multiphase flow containing natural gas hydrate phase changes |
| CN102928193A (en) * | 2012-10-24 | 2013-02-13 | 西南石油大学 | System for simulating low-temperature environment and monitoring radial temperature of hot oil pipeline |
| CN103206194A (en) * | 2013-04-02 | 2013-07-17 | 中国石油大学(华东) | Offshore oil platform injecting and producing system |
| CN101761326B (en) * | 2009-12-30 | 2013-07-31 | 中国科学院广州能源研究所 | Experimental device for carbon dioxide replacement exploitation of gas hydrate |
| CN104034849A (en) * | 2014-05-28 | 2014-09-10 | 山东科技大学 | Testing method for mechanical property change of natural gas hydrate during decomposition |
| CN104324916A (en) * | 2014-09-28 | 2015-02-04 | 中国海洋石油总公司 | Hydrate controlling sledge |
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| CN101761326B (en) * | 2009-12-30 | 2013-07-31 | 中国科学院广州能源研究所 | Experimental device for carbon dioxide replacement exploitation of gas hydrate |
| CN102865066A (en) * | 2012-10-16 | 2013-01-09 | 中国石油大学(华东) | Experiment device and method for deepwater shaft multiphase flow containing natural gas hydrate phase changes |
| CN102928193B (en) * | 2012-10-24 | 2015-11-18 | 西南石油大学 | The simulation of hot oil pipeline low temperature environment and radial temperature monitoring system |
| CN102928193A (en) * | 2012-10-24 | 2013-02-13 | 西南石油大学 | System for simulating low-temperature environment and monitoring radial temperature of hot oil pipeline |
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