CN201749113U - Natural gas hydrate decomposition rate experimental device - Google Patents
Natural gas hydrate decomposition rate experimental device Download PDFInfo
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- CN201749113U CN201749113U CN 201020253082 CN201020253082U CN201749113U CN 201749113 U CN201749113 U CN 201749113U CN 201020253082 CN201020253082 CN 201020253082 CN 201020253082 U CN201020253082 U CN 201020253082U CN 201749113 U CN201749113 U CN 201749113U
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- gas hydrate
- hydrate
- reactor
- decomposition rate
- resolution ratio
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Abstract
The utility model relates to an experimental device, in particular to a natural gas hydrate decomposition rate experimental device, which comprises two or more reaction kettles, wherein each reaction kettle is connected with the same air supply device via an independent pipeline; a pressure sensor and an adjusting valve are arranged on the output pipeline of each reaction kettle; and a temperature sensor is arranged at the bottom of each reaction kettle. The natural gas hydrate decomposition rate experimental device provided by the utility model can accurately measure the hydrate decomposition rate, has simplicity and low construction cost and is convenient for operation.
Description
Technical field
The utility model relates to a kind of experimental provision, relates in particular to a kind of experimental provision of natural gas hydrate resolution ratio.
Background technology
Gas hydrate are a kind of nonstoichiometry cage type crystal that generated under certain temperature, pressure condition by natural G﹠W.At present, all find to exist hydrate, through calculating that tentatively the gas reserves such as methane that comprise in the occurring in nature hydrate are the twices of traditional energy (coal, petroleum and natural gas) total reserves in many places of permafrost band and edge of continental shelf.The research of gas hydrate resolution ratio can provide strong support for utilizing the hydrate resource.
The thermodynamic study of gas hydrate has reached quite ripe degree to the eighties, and the various countries scientist has set up the thermodynamical model of the hydrate formation condition of comparative maturity in succession.Along with going deep into of research, the research of hydrate begins to learn from the thermodynamics steering power, and research system also turns to the porous medium system from the pure solution system of beginning.Hydrate is composed the dis environment complexity under the natural conditions, and the sampling difficulty is big, cost is high, if deal with improperly, also might cause serious geologic hazards.Therefore, the simulation experiment study method is generally believed it is a kind of research of hydrate safely and effectively approach.
The utility model content
Technique effect of the present utility model can overcome above-mentioned defective, and a kind of gas hydrate resolution ratio experimental provision is provided, and it is simple in structure, and experiment effect is good.
For achieving the above object, the utility model adopts following technical scheme: it comprises two or more reactors, and each reactor is connected with same feeder by pipeline independently; The output pipe of each reactor is provided with pressure transducer, pressure regulator valve; The bottom of each reactor all is provided with temperature sensor.
Different with most of decomposition of hydrate analogue experiment installations, the design can carry out two groups or more decomposition of hydrate reaction experiment simultaneously under identical temperature environment.Many group independent reaction stills are equipped with accurate electric controlled regulating valve respectively, can regulate the decomposition gas discharge rate automatically according to set pressure, reach the purpose that constant voltage is decomposed.In addition, many group reactions still can use dissimilar porous mediums again.This can make the discussion of decomposition of hydrate feature under the different condition have more comparative.Package unit is formed by overlapping independently decomposing system more, can use identical temperature, pressure condition parallel synthetic, decompose a plurality of hydrate samples.Reactor is made by stainless steel, inner diameter of steel flue 30mm, high 50mm, and maximum can be born 30MPa pressure.
All reactors all are arranged in the water bath.Pressure regulator valve comprises manual pressure regulating valve and automatic pressure regulator.Each output pipe is provided with two each and every one manual pressure regulating valve and automatic pressure regulators.Each output pipe is provided with flowmeter.
A temperature sensor is equipped with in the reactor bottom, is used for monitoring temperature in the kettle.Reactor is placed in the water bath, water bath controllable temperature scope-10 ℃～100 ℃, 0.1 ℃ of temperature-controlled precision.Pressure transducer is installed in the reactor top portion and vents one's spleen before the pressure regulator valve, maximum working pressure (MWP) 30MPa, precision 0.01%.The pressure regulator valve that pressure constant state during decomposition of hydrate is vented one's spleen on the output pipe by branch is realized.Wherein the front is a manual pressure regulating valve, and last is the induction type automatic pressure regulator.
To be pressure transducer transmit still internal pressure signal to computer real-time to its principle of work, and when reacting kettle inner pressure differs from the experiment setting value, computing machine can start electric rotating machine work, by the switch degree of Electric Machine Control pressure regulator valve, reaches the purpose of voltage stabilizing.Flowmeter is housed after pressure regulator valve, is used for monitoring the instantaneous velocity and the integrated flow of decomposition gas.
Gas hydrate resolution ratio experimental provision of the present utility model can accurately be measured the decomposition of hydrate rate, and described device is simple, cheap, easy to operate.
Description of drawings
Below in conjunction with the drawings and specific embodiments this device is done detailed description:
Fig. 1 is this device synoptic diagram;
1, feeder; 2, temperature sensor; 3, reactor; 4, pressure transducer; 5, manual pressure regulating valve; 6, automatic pressure regulator; 7, flowmeter; 8, water bath.
Embodiment
This device comprises three reactors 3, and each reactor 3 is connected with same feeder 1 by pipeline independently; The output pipe of each reactor 3 is provided with pressure transducer 4, pressure regulator valve; The bottom of each reactor 3 all is provided with temperature sensor 2.
All reactors 3 all are arranged in the water bath 8.Pressure regulator valve comprises manual pressure regulating valve 5 and automatic pressure regulator 6.Each output pipe is provided with three manual pressure regulating valves 5 and an automatic pressure regulator 6.Each output pipe is provided with flowmeter 7.
The methane hydrate resolution ratio is tested and is adopted two kinds of decomposition methods: wait and hold normal pressure decomposition in heat up decomposition and the different-grain diameter porous medium.
1. wait and hold the decomposition experimental procedure that heats up:
(1) in reactor 3, adds the 60ml aqueous solution.
(2) in reactor 3, feed high pressure methane gas, open constant water bath box 8 simultaneously, synthesized hydrate under the temperature, pressure condition of setting.
(3) sealed reactor 3 after the hydrate synthetic reaction finishes is closed the water-bath temperature control, and reactor 8 temperature are raise naturally.
(4) the compound resolution ratio logging software of fetching boiling water, monitoring decomposition of hydrate course of reaction.
2. the methane hydrate normal pressure decomposes experimental procedure in the different-grain diameter porous medium:
(1) the natural sea sand of five kinds of different-grain diameters of artificial screening, the hydrochloric acid solution with 5% soaks 48h, and soaking flushing is clean repeatedly with deionized water again, dry for standby.
(2) in reactor 3, add the sea sand of the known particle diameter of 25ml and the aqueous solution of 10ml.
(3) use suitable reaction conditions synthesizing methane hydrate.
(4) bleed off the gases at high pressure in the reactor 3 before decomposition reaction begins, hydrate is decomposed under normal pressure.
(5) the compound resolution ratio logging software of fetching boiling water, monitoring decomposition of hydrate course of reaction.
(6) reaction finishes back cleaning reaction still 3, and adds other porous medium, uses identical condition to compare experiment.
Claims (5)
1. a gas hydrate resolution ratio experimental provision is characterized in that, comprises two or more reactors, and each reactor is connected with same feeder by pipeline independently; The output pipe of each reactor is provided with pressure transducer, pressure regulator valve; The bottom of each reactor all is provided with temperature sensor.
2. gas hydrate resolution ratio experimental provision according to claim 1 is characterized in that all reactors all are arranged in the water bath.
3. gas hydrate resolution ratio experimental provision according to claim 2 is characterized in that pressure regulator valve comprises manual pressure regulating valve and automatic pressure regulator.
4. gas hydrate resolution ratio experimental provision according to claim 3 is characterized in that, each output pipe is provided with two manual pressure regulating valves and an automatic pressure regulator.
5. gas hydrate resolution ratio experimental provision according to claim 2 is characterized in that each output pipe is provided with flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020253082 CN201749113U (en) | 2010-07-01 | 2010-07-01 | Natural gas hydrate decomposition rate experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020253082 CN201749113U (en) | 2010-07-01 | 2010-07-01 | Natural gas hydrate decomposition rate experimental device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201749113U true CN201749113U (en) | 2011-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020253082 Expired - Fee Related CN201749113U (en) | 2010-07-01 | 2010-07-01 | Natural gas hydrate decomposition rate experimental device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201749113U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043036A (en) * | 2010-07-01 | 2011-05-04 | 青岛海洋地质研究所 | Experimental facility for determining decomposition rate of natural gas hydrate |
| CN103105466A (en) * | 2013-01-05 | 2013-05-15 | 中国科学院广州能源研究所 | Device and method for kinetic study of drilling fluid and natural gas hydrate |
| US20170292904A1 (en) * | 2015-09-23 | 2017-10-12 | China University Of Petroleum (East China) | Test system and test method for a simulation experiment of gas hydrate in a porous medium |
-
2010
- 2010-07-01 CN CN 201020253082 patent/CN201749113U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043036A (en) * | 2010-07-01 | 2011-05-04 | 青岛海洋地质研究所 | Experimental facility for determining decomposition rate of natural gas hydrate |
| CN103105466A (en) * | 2013-01-05 | 2013-05-15 | 中国科学院广州能源研究所 | Device and method for kinetic study of drilling fluid and natural gas hydrate |
| US20170292904A1 (en) * | 2015-09-23 | 2017-10-12 | China University Of Petroleum (East China) | Test system and test method for a simulation experiment of gas hydrate in a porous medium |
| US9897529B2 (en) * | 2015-09-23 | 2018-02-20 | China University Of Petroleum (East China) | Test system and test method for a simulation experiment of gas hydrate in a porous medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20120701 |