CN201532329U - Experiment device of seabed gas hydrates - Google Patents
Experiment device of seabed gas hydrates Download PDFInfo
- Publication number
- CN201532329U CN201532329U CN2009200875205U CN200920087520U CN201532329U CN 201532329 U CN201532329 U CN 201532329U CN 2009200875205 U CN2009200875205 U CN 2009200875205U CN 200920087520 U CN200920087520 U CN 200920087520U CN 201532329 U CN201532329 U CN 201532329U
- Authority
- CN
- China
- Prior art keywords
- pressure
- high pressure
- valve
- air
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses an experiment device of seabed gas hydrates. The experiment device comprises a high pressure reactor, a gas-water mixing and separation high pressure container, a magnetic stirring device, a constant temperature device, a data gathering system and a first high pressure air pipe connecting air source (G-1), wherein the bottoms of the high pressure reactor and the gas-water mixing and separation high pressure container are connected through an advection pump and a valve, the upper portions of the high pressure reactor and the gas-water mixing and separation high pressure container are connected through a valve, a vacuum pump and a water supply box are respectively connected with the gas-water mixing and separation high pressure container through a valve and a three-way interface, and a constant temperature bath in the constant temperature device is connected with a jacket of the high pressure reactor through two flexible pipes. The experiment device has simple structure, high precision, excellent stability and simple operation.
Description
Technical field
The utility model relates to the laboratory simulation technical field of sea bed gas hydrate, the experimental provision that more specifically relates to a kind of sea bed gas hydrate, and this equipment can carry out the decomposition phase balance condition test of gas hydrate after two kinds of patterns form the hydrate sample more than the simulation seabed.
Background technology
Gas hydrate are methane CH
4, under certain pressure and temperature conditions, be inhaled in the space of cage type water clusters structure Deng the natural-gas molecule, thereby form a kind of solid shape material.As a kind of strategic substitute energy, gas hydrate have huge business development and are worth, and estimate will occupy main status in the energy consumption structure in this century.Along with the worsening shortages of oil and natural gas resource, this novel substitute energy of development of natural gas hydrate just seems particularly urgent.Simultaneously, what the irrational exploitation of gas hydrate can cause the geology landslide in seabed and methane gas discharges into atmosphere in a large number, understands the safety of grave danger marine structure like this and causes global warming.Therefore, be the inevitable requirement that will large-scale develop and utilize gas hydrate future at the research of sea bed gas hydrate, it has extremely important strategic importance.
Sea bed gas hydrate is stable under the high pressure low temperature condition, can decompose under normal temperature and pressure conditions, and is very unstable, so it is very unrealistic to be used for laboratory study from submarine sampling.So the formation sample preparation of laboratory simulation sea bed gas hydrate is very crucial.It is synthetic and the strange land gas transfer synthetic that the formation of sea bottom hydrate can be divided into local non-migrating gas, and migration is synthetic to be divided into the gaseous diffusion migration again and seepage is moved two kinds of patterns by migration model.
Still be in starting and exploratory stage at containing the sedimental correlative study of gas hydrate at present, present existing test and method for making sample all are mainly to concentrate on local non-migrating gas synthesized hydrate.Mainly contain three kinds: the one, mix with soil particle making the pulverulent solids hydrate in advance, then the potpourri of making is put into the environment of low temperature to carry out experiment; The 2nd, directly in the soil sample hole, generate gas hydrate.At first the soil sample that will have certain water cut or ice content is put into experimental provision, utilizes vacuum pump to vacuumize the back and injects natural-gas and apply certain pressure, reduces temperature formation then and contains gas hydrate sediment sample.The 3rd, directly in the saturated soil sample of low temperature, apply gases at high pressure and in the soil pores, form hydrate.The above first method differs greatly from natural hydrated in-situ thing generate pattern; Second method is that the soil sample gas inside combines the generation hydrate with water or ice in enclosed environment, only contain hydrate and free gas in the sample hole that this method generates, and it is widely distributed by the hydrate of gaseous diffusion formation, the rock gas flux is very low in the distributive province, does not have free gas to exist in the corresponding hydrate zone.The third method, since very low at gas at the coefficient of diffusion of the fine and close hydrate layer of gas-water interface generation, suitable length of hydrate rise time will be caused, will make hydrate skewness in the sample hole.Therefore above prior preparation method or can't truly reflect the actual conditions of sea bed gas hydrate formation, otherwise the reaction time is longer, can't satisfy the requirement of test.Be directed to this problem, this device has mainly solved the sample preparation problem of seabed gaseous diffusion migration formation gas hydrate.
Therefore, also the preparation method and the device of the sea bed gas hydrate of the ripe accurately simulation of none cover still forming process are disclosed and use at present.
Summary of the invention
The purpose of this utility model is the experimental provision that has been to provide a kind of sea bed gas hydrate, this apparatus structure is simple, easy to use, can accurately simulate the sea bed gas hydrate diffusive migration and form gas hydrate, the formation that has guaranteed gas hydrate is just because natural-gas diffuseing to form hydrate and decomposing the test that balances each other in water.In addition, this device can also carry out preparation that the local non-migrating of sea-bottom natural gas forms gas hydrate and the decomposition test that balances each other.
The purpose of this utility model is achieved in that
Its design of the utility model is: circulate in the low temperature soil sample by the water that will be dissolved with gas, make under suitable pressure and temperature conditions, gas soluble in water combines the formation gas hydrate and is filled in the soil sample hole with water.In the dissolved air water recycle circuit, do not have free gas to exist, thereby realized in the laboratory, quick and precisely containing the formation pattern that the rock gas diffusive migration forms hydrate sediment in the simulation marine environment.Can the examination of heating and decomposition gas hydrate carry out the test of phase balance condition at last, also can store hydrate to treat later experiments research.Its principle meets on-the-spot former bit pattern, structure is simple relatively, cheap, can be most of R﹠D institutions equipment.
A kind of preparation method's (abbreviation test method) that can effectively simulate the sea bed gas hydrate forming process, its step is as follows:
1) installation of sample: soil sample (is simulated sea bottom hydrate resistant strata soil density 1.5g/cm by setting density
3～2.5g/cm
3), water percentage (2%-40%) evenly packs in the high-pressure reaction vessel, it is mixed and separate high pressure vessel that the good seal air-water is installed.
2) check impermeability: toward system in, pour nitrogen to 6-8Mpa, as if system can keep pressure 3-4 hour constant, then system's impermeability is intact.
3) vacuumize: vacuumize 15min～30min, the assorted different gas in the discharge system.
4) water filling is saturated: bleed finish after, open valve and utilize supply tank that device is carried out water filling, make in the high-pressure reaction vessel soil sample saturated, when air-water mixed with separation container in be filled to half after valve-off;
5) apply gas: open valve, regulating pressure valve transfers to setup pressure value with pressure (setting value must guarantee, form hydrate among the high-pressure reaction vessel A and keep the steady pressure of hydrate, carbon dioxide is that 2～4Mpa, methane are 6～10Mpa) back valve-offs, open magnetic stirring apparatus simultaneously, the about 25-32min of mixing time.
6) circulation sample preparation: open the high pressure constant-flux pump, dissolved air water is circulated between the soil sample in mixed and separation container and the high-pressure reaction vessel at air-water, open thermostat, with temperature be reduced to setting value (temperature value set under the condition must guarantee pressure in the above system's temperature and pressure condition on the border of balancing each other with interior gas hydrate, generally be set at-2～4 ℃), utilize the cold liquid of low temperature (utilize alcohol, solidifying point for-114 ℃) circulation in the chuck of high-pressure reaction vessel to reduce the soil sample temperature to setting value and keep constant as refrigerating fulid;
7) judging that hydrate is synthetic finishes: if air-water mixed with separation container in gaseous tension keep stablizing when constant, then (temperature is the synthesis temperature of gas hydrate to decidable under corresponding temperature, pressure condition, pressure is last steady pressure, general temperature is-2 ℃～4 ℃, pressure is that 0.5Mpa～4Mpa), the hydrate in the high-pressure reaction vessel in the soil sample is synthetic to be finished.Be that the sample preparation is finished.
This sample can continue to test the phase balance condition that records by hydrate in the heating and decomposition soil sample.The also Experiments of Machanics test that can be correlated with in low-temperature storage.
Decompose the testing procedure that balances each other behind the preparation natural-gas diffusive migration synthesized hydrate:
1) decomposition of hydrate: valve-off, improve the thermostat temperature value and set;
2) data acquisition and processing: utilize and carry out automatic collection, transmission and the record that data acquisition system (DAS) is carried out test figure,
3) test that balances each other can draw the phase balance condition of hydrate in the soil sample, i.e. temperature---pressure curve.The soil sample that can record out different physical characteristicss by experiment is to the wherein influence of hydrate phase balance condition.
A kind of device (abbreviation test unit) that can effectively simulate the preparation method of sea-bottom natural gas diffusive migration formation hydrate process, according to Fig. 2 as can be known, this device comprises high-pressure reaction vessel, air-water mixes and separates high pressure vessel, magnetic stirring apparatus, thermostat, data acquisition system (DAS), first high-pressure air pipe connects source of the gas, it is characterized in that: high-pressure reaction vessel passes through constant-flux pump with air-water is mixed bottom separating high pressure vessel, the 6th, the 7th valve links to each other, high-pressure reaction vessel, air-water mixes and separates high pressure vessel top by the 4th, the 5th valve links to each other, vacuum pump and supply tank respectively by the 3rd valve and second valve through three-way interface and air-water mixed with separate high pressure vessel and link to each other, thermostatic bath links to each other first by two flexible pipes with the chuck of high-pressure reaction vessel in the thermostat, second temperature sensor respectively with high-pressure reaction vessel and air-water mixed with separate high pressure vessel and link to each other.
The connection of this device with the position relation is: high-pressure reaction vessel top and air-water mixed with separate high pressure vessel top and be connected by valve, the bottom is connected by high pressure constant-flux pump, valve bottom separating high pressure vessel with air-water is mixed, the high pressure constant-flux pump provides power to water cycle on the one hand, on the other hand for hydraulic pressure is provided in the high-pressure reaction vessel.
Feeder and air-water mixed with separate high pressure vessel top and be connected, for system provides source of the gas, make gas air-water mix with separate high pressure vessel in mix.
Vacuum pump and supply tank respectively by valve and air-water mixed with separate the high pressure vessel upper end and be connected, vacuum pump is used for system and vacuumizes, the assorted gas in the discharge system guarantees the degree of accuracy of experiment, supply tank provides the water source for system, institute's water is for distilling de-ionate.
Thermostatic bath links to each other with the constant temperature bathroom of high-pressure reaction vessel by two flexible pipes in the thermostat, and the circulation of constant temperature refrigerating fulid between guarantees the temperature constant of high-pressure reaction vessel.
It is mixed and separate the high pressure vessel bottom that magnetic stirring apparatus is positioned at air-water, is positioned at air-water blade rotation mixed and that separate high pressure vessel by driving and stirs wherein water, makes air-water fully mix.
Data acquisition system (DAS) has the data line line to link to each other with each temperature and pressure sensor, and the temperature, pressure of real-time detecting system is dynamic.
Principle of work:
The water that utilization is dissolved with gas circulates in soil sample and makes hydrate generate to separate out under cryogenic conditions to be filled in the soil sample, form do not have free state gas in the hole contain the gas hydrate sediment, form and contain the sedimental process of gas hydrate thereby simulated under the marine environment dynamic dispersal pattern; Carry out the test of phase balance condition if desired, the soil sample that can raise temperature or when reducing gaseous tension, hydrate decomposes in the soil sample under the effect of recirculated water, makes not contain free state gas in the soil sample.After hydrate reaction reached and balances each other, test gas and temperature value can obtain the phase balance condition of hydrate.
The utlity model has following advantage and good effect:
1. dissolved air water forms hydrate deposition and separates out and be filled in the soil sample hole in the low temperature soil sample, has simulated exactly to contain the sedimental generation type of gas hydrate under the marine environment under the dynamic dispersal pattern of rock gas, has filled up the blank in the present the research;
2. adopt dissolved air water circulation pattern in soil sample, avoided if directly when sealing applies certain pressure gas in the saturated soil sample, hinder the problem that gaseous diffusion causes long or test failure of reaction time behind the hydrate filling pore owing to forming, a large amount of test periods that shorten, the warranty test success.For example, a kind of method sample preparation before utilizing, the more open sedimental hydrate sample of system, sample are finished the general time of needs about 3 days, and adopt this recycle design to carry out sample preparation, only need 1 day about half time, shorten the time 50% substantially.
Description of drawings
Fig. 1 is a kind of preparation method of sea bed gas hydrate and the schematic diagram of device
Fig. 2 is a kind of experimental provision structural representation of sea bed gas hydrate
Wherein
(Hai Keyi makes the A-high-pressure reaction vessel, HBS-A1); A-1-temperature sensor (Beijing, Pt100/ φ 3);
The B-air-water is mixed, and (Hai Keyi makes, HBS-B1) with separating high pressure vessel; B-1-temperature sensor (Beijing, Pt100/ φ 3));
The C-magnetic stirring apparatus (Hangzhou, SM2120H/275); D-high pressure constant-flux pump (Qingdao, PIC-10); The E-vacuum pump (Jiangsu, WLW-50A);
(Hai Keyi makes the F-water tank, SX-F1); G-1-gas bomb (common);
The G-2-pressure-regulating valve (Shanghai, ZDLQ); G-3-gaseous tension indicator gauge (Shanghai, 2-5000); The G-4-safety valve (Shanghai, A28H);
The G-5-gas pressure sensor (Xi'an, ND-1); The H-thermostat (Ningbo of Zhejiang, THX2020); L data acquisition system (DAS) software (the easy-to-use Science and Technology Ltd. of Changzhou, HBSPQ-2);
V-1～V-7-valve (common valve)
Remarks: high-pressure reaction vessel (A), air-water mixed with separate high pressure vessel (B) and water tank (F) by Jiangsu Province Haian Oil Scientific Research Apparatus Co., Ltd. by designing and producing.High-pressure reaction vessel (A) inner cavity size is φ 50 * 100mm, and maximum working pressure (MWP) is 40Mpa, the tyre cyclic water jacket, and the top is provided with the temperature sensor exploration hole; Air-water is mixed to be φ 100 * 200mm with separating high pressure vessel (B) inner cavity size, and maximum working pressure (MWP) is 40Mpa, and the top is provided with the temperature sensor exploration hole, and the bottom is reserved with the magnetic stirring apparatus mounting hole so that magnetic stirring apparatus is installed.
Embodiment
Describe in detail below in conjunction with drawings and Examples:
Embodiment 1:
A kind of preparation method's (abbreviation test method) who simulates sea-bottom natural gas diffusive migration formation hydrate, its step is as follows:
1) installation of sample:, pack among the high-pressure reaction vessel A by a certain amount of soil sample with the soil sample drying.
2) check system impermeability: close second, third valve V-2, V-3, open other all valves, logical nitrogen is closed the first valve V-1 to 6-8mpa, treat 3-4 hour after, if gaseous tension remains unchanged in the system, then system's impermeability is intact.
3) vacuumize: close first, second valve V-1, V-2, open other all the first, second, third, fourth, the 5th, the 6th, the 7th valve V-1, V-2, V-3, V-4, V-5, V-6, V-7, open the vacuum pump E 15min～30min that bleeds.Close the 3rd valve V-3.
4) water filling is saturated: open the second valve V-2 and utilize supply tank F that device is carried out water filling, make, soil sample is saturated in the high-pressure reaction vessel A, air-water mixed with separation container B in close the 4th valve V-4 after being filled to half;
5) feed reacting gas: open the first valve V-1, regulating pressure valve G-1 transfers to setup pressure value with pressure (setting value must guarantee, form hydrate among the high-pressure reaction vessel A and keep the steady pressure of hydrate, carbon dioxide is that 2～4Mpa, methane are to close the first valve V-1 after 6～10Mpa), opens magnetic stirring apparatus C simultaneously and begins to stir.
6) circulation sample preparation: open high pressure constant-flux pump D after waiting to stir beginning back 25min-32min, dissolved air water is circulated between the soil sample among mixed and separation container B and the high-pressure reaction vessel A at air-water, open thermostat H, temperature is reduced to setting value (being generally-2～4 ℃), utilize low temperature cryostat liquid (alcohol, solidifying point for-114 ℃) circulation in the chuck of high-pressure reaction vessel A to reduce the soil sample temperature to setting value and keep constant;
7) hydrate is synthetic among judgement, the high-pressure reaction vessel A finishes: along with the carrying out of hydrate synthetic reaction, air-water mixed with separate high pressure vessel B in pressure can continue to descend, do not descend with the pressure that separates high pressure vessel B and keep constant and lasting 5～6 hours when air-water is mixed, can think then that hydrate is synthetic to finish.Be that gaseous diffusion migration forms and contains hydrate sediment sample and finish.
Sample preparation is finished, and the test that balances each other if desired can be proceeded, if the preparation sample utilizes other experiments, can carry out low-temperature storage.
Phase balance condition testing procedure (connecting):
8) decomposition of hydrate: close the 6th, the 7th valve V-6, valve V-7, improving the thermostat temperature value sets, after improving temperature, hydrate can decompose, most of gas can enter air-water mixed with separate high pressure vessel B, air-water mixed with separate high pressure vessel B in pressure can rise, can under the temperature of setting, keep stable at last, this pressure and temp is the phase balance condition of hydrate.Improve a temperature difference (this temperature difference can be controlled voluntarily according to test accuracy, is generally 0.5 ℃) afterwards, obtaining the next one pressure that balances each other, so repeatedly, till pressure is raised to initial synthesis pressure.
9) the judgement decomposition of hydrate is finished: along with the rising of temperature, hydrate can decompose among the high-pressure reaction vessel A, when rising along with temperature, change when not obvious with the pressure that separates high pressure vessel B and air-water is mixed, can assert that decomposition of hydrate is finished among the high-pressure reaction vessel A.
10) data acquisition and processing: utilize and carry out automatic collection, transmission and the record that data acquisition system (DAS) L carries out test figure,
According to above step, that can make contains gas hydrate sediment sample, and can carry out the test of the phase balance condition of hydrate in the different sediments, and the soil sample that draws different physical properties is to the wherein influence of the phase balance condition of hydrate.
Embodiment 2:
A kind of device (abbreviation test unit) that can effectively simulate the preparation method of sea-bottom natural gas diffusive migration formation hydrate process, according to Fig. 2 as can be known, this device comprises high-pressure reaction vessel A, air-water is mixed with separate high pressure vessel B, magnetic stirring apparatus C, high pressure constant-flux pump D, vacuum pump E, water tank F, feeder G, thermostat H, data acquisition system (DAS) L (comprising various kinds of sensors, 1 of 2 of temperature sensors and pressure transducer), common valve V (seven valves of V-1-V-7 are formed), the first gas bomb G-1, high pressure line M composition.
The structure and the model of each parts of test unit are as follows:
1, high-pressure reaction vessel A
In dress test soil sample, adopt special stainless steel material to make, top utilizes the O RunddichtringO to obturage and the sealing of linking closely of coarse thread bolt, thereby reaches seal request and make things convenient for the purpose of installing/dismounting.The built-in first temperature sensor A-1 is a Pt100 type platinum resistance, and its end is stretched in the middle of the soil sample, precision: 0.1 ℃.
2, air-water mixes and separates high pressure vessel B
Adopt special stainless steel material to make, inner dress gas and water.Utilize the O RunddichtringO to obturage and the sealing of linking closely of coarse thread bolt.The built-in second temperature sensor B-1 is a Pt100 type platinum resistance, and its end is stretched into below the water surface, precision: 0.1 ℃.
3, magnetic stirring apparatus C
It is mixed and separate high pressure vessel B below to be positioned at air-water, and stirring vane C-1 is positioned at 0～2000 rev/min of the inner bottom surface range of speeds, and rotating speed is stepless adjustable.
4, high pressure constant-flux pump D
The highest 40Mpa of working pressure imports and exports caliber Φ 6mm, flow range: 0.01-9.99ml/min.
5, vacuum pump E
Adopt conventional ordinary single-stage rotary-vane vaccum pump, final vacuum 2～6 * 10
-2Pa.
6, water tank F
The employing organic glass is made, volume 3L, and it is mixed and separate high pressure vessel B top to hang on air-water, and the bottom adopts flexible pipe to be connected with the second valve V-2.
7, feeder G
Provide gas by the first gas bomb G-1, the second pressure-regulating valve G-2 regulates pressure; The 3rd gaseous tension indicator gauge G-3 shows gas pressure value, precision 0.5%FS; The 4th safety valve G-4 overpressure protection, the 5th gas pressure sensor G-5, precision 0.1%FS.
8, thermostat H
Temperature range-20～20 ℃, temperature control precision ± 0.2 ℃, built-in ebullator;
9, data acquisition system (DAS) L
Adopt multifunctional data acquiring integrated circuit board, PC computing machine and data acquisition software to carry out data acquisition, transmission and record.
10, the first, second, third, fourth, the 5th, the 6th, the 7th valve (V1-V7), two ends caliber Φ 6mm adopts stainless steel to make withstand voltage 50MPa.
11, sensor (temperature sensor A-1, B-1; Pressure transducer G-5)
Temperature sensor (A-1, B-1): model: Pt100/ Φ 3, precision: 0.1 ℃;
Pressure transducer (G-5): Senex produces, pressure limit: 0～40Mpa, precision: 0.1%FS.
12, high pressure line (M)
Caliber Φ 6mm adopts stainless steel to make withstand voltage 50MPa.
Each parts connects in the following manner and realizes the function that requires:
To be high-pressure reaction vessel A mixed with air-water and separate high pressure vessel B two parts for the critical piece of this device, the place that high-pressure reaction vessel A provides hydrate to form or decomposes, air-water mixed with separate high pressure vessel B and mix or the place of separating for air water provides.High-pressure reaction vessel A links to each other by constant-flux pump D, the 6th, the 7th valve V-6, V-7 bottom separating high pressure vessel B with air-water is mixed, constant-flux pump D provides power for dissolved air water from the mixed high pressure vessel A bottom that enters of air-water bottom separating high pressure vessel B, the 6th, the 7th valve V-6, V-7 can control the path break-make.High-pressure reaction vessel A, air-water mixed with separate high pressure vessel B top and link to each other by the 4th, the 5th valve V-4, V-5, utilize three-way interface to connect supply tank and vacuum pump in the pipeline way, when second, third valve V-2, V-3 close the 4th, the 5th valve V-4, when V-5 opens, the water among the high-pressure reaction vessel A can by upper pipeline flow into air-water mixed with separate high pressure vessel B.Vacuum pump E and supply tank F respectively by the 3rd valve V-3 and the second valve V-2 through three-way interface and air-water mixed with separate high pressure vessel B and link to each other, if the second valve V-2 opens, then can if the 3rd valve V-3 opens, then can vacuumize to system water supply for system.In addition, air-water mixed with separate high pressure vessel B bottom magnetic stirring apparatus C arranged, drive agitating device C-1 for air-water mixed with separate high pressure vessel B in air water mix power be provided.Thermostatic bath links to each other with the chuck of high-pressure reaction vessel A by two flexible pipes in the thermostat H, and the circulation of constant temperature liquid refrigerating fulid between guarantees the temperature constant of high-pressure reaction vessel A, for reaction provides the temperature support.
The described first gas bomb G-1, the second pressure-regulating valve G-2, the first valve V-1, the 3rd gaseous tension indicator gauge G-3, the 4th safety valve G-4, gas pressure sensor G-5 successively with air-water mixed with separate high pressure vessel B and be connected.Air supply system by the first gas bomb G-1, the second pressure-regulating valve G-2, adjusting valve door V-1, the 3rd gaseous tension indicator gauge G-3, the 4th safety valve G-4, gas force sensor at last with air-water mixed with separate high pressure vessel B top and be connected.Pressure-regulating valve can guarantee to enter the size of gaseous tension in the system, and the first valve V-1 is by the break-make of switch control with source of the gas.The 3rd air pressure indicator gauge G-3 shows admission pressure.The 4th safety valve G-4 provides overpressure protection.The gaseous tension of the 5th gas pressure sensor G-5 test macro.
Data acquisition system (DAS) L is linked to each other with the 5th pressure transducer G-5 with the first temperature sensor A-1, the second temperature sensor B-1 by data line, the first temperature sensor A-1 places high-pressure reaction vessel A, survey the temperature among the high-pressure reaction vessel A, the second temperature sensor B-1 places air-water to mix and separates high pressure vessel B, survey air-water mixed with separate high pressure vessel B in temperature, pressure transducer G-5 and air-water mixed with separate high pressure vessel B and link to each other, survey the force value of total system, so just realized the collecting work of the temperature, pressure of system.
Claims (3)
1. the experimental provision of a sea bed gas hydrate, comprise high-pressure reaction vessel (A), air-water mixes and separates high pressure vessel (B), magnetic stirring apparatus (C), thermostat (H), data acquisition system (DAS) (L), first high-pressure air pipe connects source of the gas (G-1), it is characterized in that: high-pressure reaction vessel (A) mixes with air-water and separates both bottoms of high pressure vessel (B) by constant-flux pump (D), the 6th, the 7th valve (V-6, V-7) link to each other, high-pressure reaction vessel (A), air-water mixes and separates high pressure vessel (B) top by the 4th, the 5th valve (V-4, V-5) link to each other, vacuum pump (E) and supply tank (F) respectively by the 3rd valve (V-3) and second valve (V-2) through three-way interface and air-water mixed with separate high pressure vessel (B) and link to each other, the interior thermostatic bath of thermostat (H) links to each other first by two flexible pipes with the chuck of high-pressure reaction vessel (A), second temperature sensor (A-1), (B-1) respectively with high-pressure reaction vessel (A) and air-water mixed with separate high pressure vessel (B) and link to each other.
2. the experimental provision of a kind of sea bed gas hydrate according to claim 1 is characterized in that: described first gas bomb (G-1), second pressure-regulating valve (G-2), first valve (V-1), the 3rd gaseous tension indicator gauge (G-3), the 4th safety valve (G-4), gas pressure sensor (G-5) successively with air-water mixed with separate high pressure vessel (B) and be connected.
3. the experimental provision of a kind of sea bed gas hydrate according to claim 1, it is characterized in that: described data acquisition system (DAS) (L) is linked to each other with first temperature sensor (A-1), second temperature sensor (B-1) and the 5th pressure transducer (G-5) by data line, first temperature sensor (A-1) places high-pressure reaction vessel (A), pressure transducer (G-5) and air-water mixed with separate high pressure vessel (B) and link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200875205U CN201532329U (en) | 2009-07-24 | 2009-07-24 | Experiment device of seabed gas hydrates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200875205U CN201532329U (en) | 2009-07-24 | 2009-07-24 | Experiment device of seabed gas hydrates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201532329U true CN201532329U (en) | 2010-07-21 |
Family
ID=42527732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200875205U Expired - Lifetime CN201532329U (en) | 2009-07-24 | 2009-07-24 | Experiment device of seabed gas hydrates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201532329U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125815A (en) * | 2010-12-31 | 2011-07-20 | 中国科学院广州能源研究所 | High-pressure experimental system for simulating leakage type natural gas hydrate formation/decomposition |
| CN101597528B (en) * | 2009-07-24 | 2012-07-25 | 中国科学院武汉岩土力学研究所 | Preparation method and device for seabed natural gas hydrate |
| CN102607912A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华测检测技术股份有限公司 | Experiment cabin for preparing standard air samples |
| CN103528865A (en) * | 2013-10-17 | 2014-01-22 | 中国科学院广州能源研究所 | Preparation method and device of natural gas hydrate with uniform high saturability in sediment |
| CN105067021A (en) * | 2015-07-31 | 2015-11-18 | 国家海洋技术中心 | Ocean temperature and pressure environment simulation device and ocean temperature and pressure environment simulation method |
| CN105136626A (en) * | 2015-10-12 | 2015-12-09 | 西南石油大学 | Natural gas hydrate decomposition spiral testing device |
| CN106153416A (en) * | 2016-06-27 | 2016-11-23 | 河北地质大学 | A kind of control moisture content, the clay sample preparation device of density and method for making sample simultaneously |
-
2009
- 2009-07-24 CN CN2009200875205U patent/CN201532329U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597528B (en) * | 2009-07-24 | 2012-07-25 | 中国科学院武汉岩土力学研究所 | Preparation method and device for seabed natural gas hydrate |
| CN102125815A (en) * | 2010-12-31 | 2011-07-20 | 中国科学院广州能源研究所 | High-pressure experimental system for simulating leakage type natural gas hydrate formation/decomposition |
| CN102125815B (en) * | 2010-12-31 | 2012-12-26 | 中国科学院广州能源研究所 | High-pressure experimental system for simulating leakage type natural gas hydrate formation/decomposition |
| CN102607912A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华测检测技术股份有限公司 | Experiment cabin for preparing standard air samples |
| CN102607912B (en) * | 2012-03-06 | 2014-01-22 | 深圳市华测检测技术股份有限公司 | Experiment cabin for preparing standard air samples |
| CN103528865A (en) * | 2013-10-17 | 2014-01-22 | 中国科学院广州能源研究所 | Preparation method and device of natural gas hydrate with uniform high saturability in sediment |
| CN103528865B (en) * | 2013-10-17 | 2016-03-30 | 中国科学院广州能源研究所 | Even high saturation gas hydrate preparation method and device in a kind of sediment |
| CN105067021A (en) * | 2015-07-31 | 2015-11-18 | 国家海洋技术中心 | Ocean temperature and pressure environment simulation device and ocean temperature and pressure environment simulation method |
| CN105136626A (en) * | 2015-10-12 | 2015-12-09 | 西南石油大学 | Natural gas hydrate decomposition spiral testing device |
| CN106153416A (en) * | 2016-06-27 | 2016-11-23 | 河北地质大学 | A kind of control moisture content, the clay sample preparation device of density and method for making sample simultaneously |
| CN106153416B (en) * | 2016-06-27 | 2018-09-14 | 河北地质大学 | It is a kind of at the same control moisture content, density clay sample preparation device and method for making sample |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101597528B (en) | Preparation method and device for seabed natural gas hydrate | |
| CN201532329U (en) | Experiment device of seabed gas hydrates | |
| CN101699274B (en) | Testing device for natural gas hydrate phase equilibrium in marine sediment and method thereof | |
| CN101451985B (en) | Detection device for synthesizing and decomposing gas hydrate | |
| CN101846605B (en) | Device for testing compressibility of soil containing natural gas hydrate and testing method thereof | |
| CN101376854B (en) | Method and apparatus for simulating gas hydrate accumulation process under three-dimensional condition | |
| CN111551671B (en) | System and method for natural gas hydrate decomposition methane leakage and cold spring ecological simulation | |
| CN102445371B (en) | Integrated device for in-situ generation and decomposition of hydrate sediments and permeability measurement thereof | |
| CN106593370B (en) | Natural gas hydrate depressurization exploitation simulation experiment device and working method | |
| CN105572014B (en) | Gas hydrates saturation degree and deposit permeability synchronous measuring apparatus and method | |
| CN102125815B (en) | High-pressure experimental system for simulating leakage type natural gas hydrate formation/decomposition | |
| CN102120161B (en) | Testing simulation system for generation process of diffusion hydrates in precipitates and testing method thereof | |
| CN205593889U (en) | Gas hydrate saturation and deposit permeability synchronous measurement device | |
| CN105259003A (en) | Experiment device and method for synthesizing marine natural gas hydrate sample | |
| Zhang et al. | Influence of temperature on methane hydrate formation | |
| CN111894529B (en) | System and method for combustible ice exploitation leakage simulation and environmental parameter quantitative inversion | |
| CN104360021A (en) | Testing device for simulating exploitation of natural gas hydrate from deep-sea energy soil | |
| Qureshi et al. | CO2 hydrate stability in oceanic sediments under brine conditions | |
| CN107703275B (en) | High-pressure experimental device and method for methane hydrate phase balance research | |
| CN109459341A (en) | A kind of experimental provision and method of Organic biological gas output | |
| CN110454146A (en) | The device and method to shake out in horizontal well with sand control in evaluation hydrate recovery process | |
| Hu et al. | Sediment resuspension in the lake Taihu, China | |
| CN211201912U (en) | Device for evaluating wellbore sand production and prevention during hydrate exploitation by CO2/N2 displacement method | |
| Yao et al. | Study on mechanism of spontaneous imbibition and pressurized imbibition in shale oil reservoirs | |
| CN113933203B (en) | Experimental device and method for measuring shale methane adsorption capacity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100721 Effective date of abandoning: 20090724 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100721 Effective date of abandoning: 20090724 |