CN109490504A - A kind of gas hydrates rock sample physical parameters measurement instrument - Google Patents
A kind of gas hydrates rock sample physical parameters measurement instrument Download PDFInfo
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- CN109490504A CN109490504A CN201811465383.4A CN201811465383A CN109490504A CN 109490504 A CN109490504 A CN 109490504A CN 201811465383 A CN201811465383 A CN 201811465383A CN 109490504 A CN109490504 A CN 109490504A
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- 150000004677 hydrates Chemical class 0.000 title claims abstract description 74
- 239000011435 rock Substances 0.000 title claims abstract description 34
- 238000005259 measurement Methods 0.000 title claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 113
- 238000012360 testing method Methods 0.000 claims abstract description 60
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000006243 chemical reaction Methods 0.000 claims abstract description 29
- 239000003345 natural gas Substances 0.000 claims abstract description 29
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 16
- 238000012806 monitoring device Methods 0.000 claims abstract description 7
- 239000000523 sample Substances 0.000 claims description 110
- 230000000087 stabilizing effect Effects 0.000 claims description 24
- 238000001764 infiltration Methods 0.000 claims description 14
- 230000008595 infiltration Effects 0.000 claims description 13
- 238000011068 loading method Methods 0.000 claims description 13
- 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 claims description 13
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 210000003625 skull Anatomy 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 239000013049 sediment Substances 0.000 description 7
- 238000011160 research Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 206010015866 Extravasation Diseases 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000036251 extravasation Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- NUXZAAJDCYMILL-UHFFFAOYSA-K trichlorolanthanum;hydrate Chemical group O.Cl[La](Cl)Cl NUXZAAJDCYMILL-UHFFFAOYSA-K 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
- G01N33/225—Gaseous fuels, e.g. natural gas
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- General Health & Medical Sciences (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of gas hydrates rock sample physical parameters measurement instrument, belongs to gas hydrates experimental provision field.The gas hydrates rock sample physical parameters measurement instrument includes that gas hydrates generate system and physical parameter test macro two large divisions；It includes clamper reaction kettle, low temperature constant temperature water box and natural gas supply gas cylinder that wherein gas hydrates, which generate system,；Physical parameter test macro includes temperature and pressure monitoring device, acoustic-electric test device, axial deformation and radial deformation testing device and TDR Test and testing device for measuring thermal conductivity, wherein clamper reaction kettle and physical parameter test macro are mounted in an instruction case, facilitate the movement of a whole set of instrument.The present invention can not only simulate the synthesis and decomposition of gas hydrates, moreover it is possible to the variation that many kinds of parameters such as sound wave, resistance, mechanics, thermal conductivity in real-time monitoring gas hydrates synthesis process change with saturation degree.
Description
Technical field
The invention belongs to gas hydrates experimental provision field, in particular to a kind of gas hydrates rock sample physics ginseng
Number measuring instrument.
Background technique
Hydrate sediment refers to the deposited material of the soil properties such as the clay, sand and composite soil for containing hydrate, main to assign
It is stored among the bottom sediment in neritic shelf slope area and the various detrital sediment holes of polar region Frozen Ground Area.Nature discovery
Shaft-like, stratiform, small acicular crystals or the dispersed such as how white, faint yellow, the amber, crineous of gas hydrates,
Seldom with the appearance of block stratiform.The physical parameter of gas hydrates is that hydrate formation stability analysis and hydrate exploitation are commented
The fundamental parameter of valence, stock assessment.Currently, prior art progress hydrate sediment scene coring is still not mature enough, respectively
State researcher still in the laboratory simulation stage, mainly leads to the research of gas hydrates to the research of its physical parameter
Laboratory test preparation simulating hydrate deposit is crossed to realize.Therefore, the synthesis of gas hydrates and decomposition experiment are studied, with
And the research of gas hydrates physical parameter is imperative.In order to effectively simulate the synthesis and decomposition of gas hydrates
And test gas hydrates physical parameter, it is necessary to the hydrate experiment device of a set of harshness be developed, for this purpose, various countries
Scientific research personnel has paid great efforts, and achieves certain achievement.
There is lanthanum chloride hydrate with decomposition and physical parameter test experiments integrated apparatus in external reported deposit: day
The hydrate sediment synthesis of this advanced industrial science and technology international research institute and decomposition and triaxial tests integrated apparatus；Beauty
The gas hydrates and deposit imitative experimental appliance GHASTLI of geologic survey office, state；The hydrate sediment of Britain synthesizes
Resonance column experiments integrated apparatus is cut with torsion；Domestic Chinese Academy of Sciences's mechanics study institute carried out tetrahydro furan using cryogenic high pressure triaxial apparatus
The experimental study for hydrate sediment mechanical property of muttering.Apparatus above is unable to gas hydrates in real-time measurement experimentation
Saturation degree, therefore cannot obtain the quantitative relationship of gas hydrates saturation degree and mechanical property.
In the technical patent announced, gas hydrates experimental provision realize simulation gas hydrates synthesis with
It decomposes, some devices, which are also able to achieve, in real time tests the certain parameters of gas hydrates (such as acoustics, electricity, mechanics).
But many devices are all to design foundation just for a certain specific goal in research, function is relatively simple.
CN2014203755687.0 discloses generation and the acoustic-electric characteristic test integrated apparatus of the rock sample containing gas hydrates, dress
Gas hydrates can be generated in plunger rock sample by setting, and can realize acoustic speed and resistivity under Simulating Multiphase fluid state
Dynamic monitoring.But its gas hydrates rock sample generating means is to be mixed salt water and methane gas by blender in fluid reservoir
Dissolution is closed, the solution after mixed dissolution is being injected into core barrel, air content is limited in the hydrate rock sample generated, cannot be fine
Simulating hydrate deposit actual conditions.And the core barrel of the device is completely disposed in temperature control bath, quick-detach cannot be taken fastly
Sample；The device can not test hydrate mechanics parameter.It is dynamic that CN201310225265.7 discloses natural gas hydrate deposits object
Three-axis force-acoustics-electricity synchronism detection experimental provision and method, device can to gas hydrates dynamic triaxial mechanics and
Sound wave, electrology characteristic synchronism detection.Its mechanics mainly passes through sonic test value and calculates elasticity modulus and dynamic Poisson's ratio, Bu Nengzhi
The properties such as the reversed compression strength for answering gas hydrates.CN20102025306.3 discloses gas hydrate mechanical property
Experimental provision, the triaxial apparatus upper end of device are equipped with the load bar of special designing, and load bar is connected with force snesor, can also pacify
Time Domain Reflectometry probe is filled, is equipped with thermal resistance in reaction chamber.The device can be derived that gas hydrates saturation degree and mechanical property
Quantitative relationship, but the device cannot test the acoustics and electric property of gas hydrates.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of gas hydrates rock sample physical parameters measurement instrument, the dresses
Set the synthesis and decomposition that can not only simulate gas hydrates, moreover it is possible to the sound in real-time monitoring gas hydrates synthesis process
The variation that many kinds of parameters such as wave, resistance, mechanics, thermal conductivity change with saturation degree.
A kind of gas hydrates rock sample physical parameters measurement instrument provided by the invention is achieved through the following technical solutions
State purpose:
A kind of gas hydrates rock sample physical parameters measurement instrument, which is characterized in that generate system including gas hydrates
System and physical parameter test macro；It includes clamper reaction kettle, low temperature constant temperature water box that wherein gas hydrates, which generate system,
And natural gas supplies gas cylinder；The clamper reaction kettle includes autoclave body plug and autoclave body, and the autoclave body passes through on autoclave body plug
Screw thread and sealing ring are connect with autoclave body plug, and cooling water circulation channel is equipped in autoclave body；Cooling water in low temperature constant temperature water box
Entered in autoclave body by the import water nozzle on autoclave body, then returned in low temperature constant temperature water box by outlet water nozzle, so circulation so that
Entire clamper temperature of reaction kettle reduces and controls the optimum temperature range generated in gas hydrates；By gas hydrates
For rock sample in infiltration srite, the natural gas in natural gas supply gas cylinder enters kettle by the gas injection entrance installed on autoclave body plug
In vivo, then through infiltration srite enter in porous media, realize the generation of gas hydrates；Physical parameter test macro includes
Temperature and pressure monitoring device, sound wave resistance testing device, axial deformation and radial deformation testing device and TDR Test and thermal conductivity test
Device, the clamper reaction kettle and physical parameter test macro are mounted in an instruction case.
Lifting device is set at the top of the instruction case, and the clamper reaction kettle completes oscilaltion by the lifting device
Movement, and separated clamper reaction kettle with instruction case using insulating base.
The temperature and pressure monitoring device includes being mounted on the intracorporal temperature probe of kettle and differential pressure pick-up, and the temperature probe is used
In the entire clamper temperature of reaction kettle of acquisition；Error of measurement pressure pressure stabilizing pod aperture on the intracorporal pressure stabilizing gas tank of kettle and autoclave body plug connects
It connects, error of measurement pressure pressure stabilizing pod aperture pipeline connects with gas injection suction line and while being connected to natural gas supply gas cylinder, pressure stabilizing gas tank chamber
Body and autoclave body cavity are connected respectively to differential pressure pick-up both ends；When synthesis of natural gas hydrate, while to pressure stabilizing gas tank and autoclave body
In be filled with natural gas, after pressure stabilisation, differential pressure pick-up readings is zero at this time；Close the natural gas filling of pressure stabilizing gas tank and autoclave body
Enter valve, with the formation of gas hydrates, the natural gas in autoclave body is consumed, pressure reduction, and differential pressure pick-up reads steady
The pressure difference that tank of calming the anger is formed with autoclave body.
The sound wave resistance testing device includes Low ESR sonic probe, oscillograph and electric bridge instrument, the Low ESR sound wave
Probe is divided into probe and lower probe, and probe tip face posts stainless steel thin slice；Lower probe is connected by lower probe socket and autoclave body plug
It is connected together, Sealing shield ring and sealing ring is equipped between lower probe socket and autoclave body plug, be equipped between lower probe socket and lower probe close
Seal, resistance, the sound wave lead of lower probe are connected by the lower probe resistance sound wave down-lead device at autoclave body plug center；Upper probe is logical
Probe cover is crossed to connect with axis pressure loading device；Resistance, sound wave lead and the upper probe resistance sound wave on autoclave body plug of upper probe
Down-lead device connection；Axis pressure loading device is made of piston cylinder and piston, and axis pressure loading device is connect by screw with autoclave body plug；
Axis pressure load pipeline is installed, hydraulic oil enters in piston cylinder by loading pipeline, pushes piston mobile, piston pushes away on piston cylinder
Dynamic upper probe movement, upper probe apply axial compressive force to gas hydrates.
The axial deformation and radial deformation testing device include axial deformation device and radial deformation device, the axial deformation
Device is connect with insulating base and piston cylinder；The radial direction deformation device is mounted on outside infiltration srite.
The TDR Test and testing device for measuring thermal conductivity include being mounted on the intracorporal TDR probe of kettle and thermal conductivity test probe,
The TDR probe and thermal conductivity test probe protrude into the porous media for synthesis of natural gas hydrate.
The infiltration srite is polytetrafluoroethylene (PTFE) strainer.
It is drilled with through-hole on the autoclave body plug, for axis pressure load pipeline, natural gas injection pipeline and physical parameter test
The installation of data cable lead wire device.
The present invention provides a kind of gas hydrates rock sample physical parameters measurement instrument, compared with technology used at present,
It has the advantage that
1, a kind of gas hydrates rock sample physical parameters measurement instrument provided by the invention can be used not only for generating natural gas
Hydrate, moreover it is possible to the situation of change of each physical parameter in real-time monitoring gas hydrates synthesis process, including resistance, sound wave,
Axial deformation, radial deformation, thermal conductivity, Time Domain Reflectometry, temperature and pressure.Wherein the test of sound wave and resistance uses a kind of end face
The Low ESR sonic probe for posting stainless steel thin slice solves and how to reduce common high impedance sonic probe matrix and tested hydration
Between object rock sample due to acoustic impedance biggish difference caused by reflection loss the problem of.
2, used rock sample gum cover is polytetrafluoroethylene (PTFE) strainer, the porous media (sand) for synthesis of natural gas hydrate
In rock sample gum cover, it is filled with the intracorporal natural gas of kettle and enters in porous media from surrounding through rock sample gum cover, improve natural
The aggregate velocity of gas hydrate.
3, the size of the rock sample gum cover of designed autoclave body volume size and design is in certain relationship, is filled with satisfaction in autoclave body
Gas hydrates generate the amount of natural gas under pressure condition, make the simulated seawater in rock sample gum cover in porous media complete enough
Gas hydrates are generated, and the intracorporal gas pressure variation of kettle is less, but can be connected the difference of pressure stabilizing gas tank and autoclave body
Pressure sensor detection.So design is primarily to disposable inflation, more can accurately measure gas consumption, also just more can
Gas hydrates saturation degree is accurately calculated, the measurement error of repeated multiple times inflation and theoretical calculation in conventional means is reduced and misses
Difference.
Detailed description of the invention
Fig. 1 is gas hydrates rock sample physical parameters measurement instrument structural schematic diagram；
Fig. 2 is clamper reaction kettle structure main view sectional view；
Fig. 3 is clamper reaction kettle structure left view sectional view；
Fig. 4 is the right pseudosection of clamper reaction kettle structure；
Fig. 5 is clamper reaction kettle structure top view.
Wherein, 1-clamper reaction kettle；The hanger rope component of 2-lifting devices；The rotating cylinder of 3-lifting devices；4-controls
Instrument；5-instruction cases；6-electric bridge instrument；7-oscillographs；
1-1-insulating base；1-2-autoclave body plug；1-3-autoclave body；1-4-seal member；1-5-temperature probe；1-
6-axial deformation sensors；It pops one's head under 1-7-Low ESR sound wave；1-8-thermal conductivity measuring probe；1-9-radial direction deformation sensing
Device；1-10-infiltration srite；It pops one's head on 1-11-Low ESR sound wave；1-12-axis presses piston；1-13-axis presses piston cylinder；1-
14-hanging rings；1-15-low-temperature circulating water channel；1-16-pressure stabilizing gas tank；The lower resistance sound wave down-lead device of popping one's head in of 1-17-；1-18—
Gas injection pipeline；1-19-TDR probe；1-20-low-temperature circulating water import water nozzle；；1-21-low-temperature circulating water import water nozzle；1-
22-differential pressure pick-ups；1-23-error of measurement presses pressure stabilizing pod aperture；1-24-fixing screws；1-25-axis is pressed into mouth；1-26-gas injection
Entrance；Temperature detection mouth in 1-27.
Specific embodiment
As shown in Figure 1, a kind of gas hydrates rock sample physical parameters measurement instrument provided by the invention includes gas water
It closes object and generates system and physical parameter test macro two large divisions.It includes clamper reaction that wherein gas hydrates, which generate system,
Kettle, low temperature constant temperature water box and natural gas supply gas cylinder；Physical parameter test macro includes temperature and pressure monitoring device, the survey of sound wave resistance
Trial assembly sets, axial deformation and radial deformation testing device, TDR Test and testing device for measuring thermal conductivity, data acquisition line and dedicated
Data Acquisition & Processing Software.Clamper reaction kettle and physical parameter test macro are installed in an instruction case, facilitate the whole series
The movement of instrument.
The clamper reaction kettle is as shown in Figure 2-5, including autoclave body plug, autoclave body, Low ESR sonic probe, infiltration rock
Set, pressure stabilizing gas tank and axis press loading device.The autoclave body is connect by screw thread on autoclave body plug and sealing ring with autoclave body plug,
Since autoclave body is heavier, so there is hanging ring in autoclave body upper end, hanging ring is connect with the lifting device at the top of instruction case, the lifting of autoclave body
It is completed by lifting device.Clamper reaction kettle is mounted on instruction case, and uses insulating base by clamper reaction kettle and instrument
Cabinet separates.It is drilled with through-hole on autoclave body plug, for axis pressure load pipeline, natural gas injection pipeline and physical parameter test data line
The installation of down-lead device.Cooling water circulation channel is equipped in autoclave body, cooling water in low temperature constant temperature water box by autoclave body into
Saliva mouth enters in autoclave body, then is returned in low temperature constant temperature water box by exporting the mouth of a river, and so circulation is so that entire clamper reaction
Kettle temperature degree reduces and controls the optimum temperature range generated in gas hydrates.
Temperature and pressure monitoring device is included in the intracorporal temperature probe of kettle and differential pressure pick-up, and interior temperature is equipped in autoclave body and is detected
Mouthful, entire clamper temperature of reaction kettle is obtained for temperature probe；Error of measurement on the intracorporal pressure stabilizing gas tank of kettle and autoclave body plug
The connection of pressure stabilizing pod aperture is pressed, error of measurement pressure pressure stabilizing pod aperture pipeline connects with gas injection suction line and while being connected to natural gas supply gas
Bottle, pressure stabilizing gas tank cavity and autoclave body cavity are connected respectively to differential pressure pick-up end；When synthesis of natural gas hydrate, while to pressure stabilizing
Natural gas is filled in gas tank and autoclave body, after pressure stabilisation, differential pressure pick-up readings is zero at this time；Close pressure stabilizing gas tank and autoclave body
Natural gas inject valve, with the formation of gas hydrates, the natural gas in autoclave body is consumed, pressure reduction, differential pressure pass
Sensor reads the pressure difference that pressure stabilizing gas tank and autoclave body are formed, and this makes it possible to obtain natural gases in natural gas hydrate formation to disappear
Consumption.
Sound wave resistance testing device is made of Low ESR sonic probe, oscillograph and electric bridge instrument etc., low-resistance acoustic resistive used
Wave probe can obtain the preferable acoustic waveform of gas hydrates compared to general sonic probe.Low ESR sonic probe point
For upper probe and lower probe, probe tip face posts stainless steel thin slice, it can be achieved that the acoustic speed and resistance of gas hydrates are surveyed
Examination.Lower probe is linked together by lower probe socket and autoclave body plug, between lower probe socket and autoclave body plug be equipped with Sealing shield ring and
Sealing ring is equipped with sealing ring between lower probe socket and lower probe, prevent from being filled with the intracorporal natural gas extravasation of kettle.Lower probe socket is under
It is drilled with through-hole on probe, facilitates installation TDR probe and thermal conductivity test probe, the resistance of lower probe, sound wave lead are by test
The through-hole at headstock center is connect with lower probe down-lead device, and the convenient lower disassembly popped one's head in is not influenced by acoustic-electric test data line.Upper spy
Head presses loading device to connect by probe cover with axis, resistance, sound wave lead and the upper probe lead wire on autoclave body plug of upper probe
Device connection；Axis pressure loading device is made of piston cylinder and piston, and axis pressure loading device is connect by screw with autoclave body plug；Piston
Axis is installed on cylinder and presses load pipeline, hydraulic oil is entered in piston cylinder by loading pipeline, pushes piston mobile, in piston promotion
Probe movement, upper probe apply axial compressive force to gas hydrates.Infiltration srite is polytetrafluoroethylene (PTFE) strainer, for synthesizing day
Gas hydrates rock sample is mounted in infiltration srite by right gas hydrate porous media, and natural gas supplies natural in gas cylinder
Gas is entered in autoclave body by the gas injection entrance installed on autoclave body plug, then is entered in porous media through infiltration srite from surrounding,
The contact area of natural gas and porous media is increased, the generation of gas hydrates is accelerated.
The axial deformation and radial deformation testing device include axial deformation sensor and radial changing sensor, described
Axial deformation sensor is connect with insulating base and piston cylinder；The radial direction changing sensor is mounted on outside infiltration srite；It is described
The lead of axial deformation sensor and radial changing sensor is drawn by setting down-lead device on autoclave body plug.
The TDR Test and testing device for measuring thermal conductivity include being mounted on the intracorporal TDR probe of kettle and thermal conductivity test probe,
Wherein TDR probe and thermal conductivity test probe and protrude into the porous media for synthesis of natural gas hydrate by lower probe through-hole
In.
The control switch of each equipment is provided on instrument cabinet panel, so as to operator's operation.
The above embodiments are only used to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (8)
1. a kind of gas hydrates rock sample physical parameters measurement instrument, which is characterized in that generate system including gas hydrates
With physical parameter test macro；Wherein gas hydrates generate system include clamper reaction kettle, low temperature constant temperature water box and
Natural gas supplies gas cylinder；The clamper reaction kettle includes autoclave body plug and autoclave body, and the autoclave body passes through the spiral shell on autoclave body plug
Line and sealing ring are connect with autoclave body plug, and cooling water circulation channel is equipped in autoclave body；Cooling water in low temperature constant temperature water box is logical
The import water nozzle crossed on autoclave body enters in autoclave body, then is returned in low temperature constant temperature water box by outlet water nozzle, and so circulation is so that whole
A clamper temperature of reaction kettle reduces and controls the optimum temperature range generated in gas hydrates；By gas hydrates rock
For sample in infiltration srite, the natural gas in natural gas supply gas cylinder enters autoclave body by the gas injection entrance installed on autoclave body plug
It is interior, then enter in porous media through infiltration srite, realize the generation of gas hydrates；Physical parameter test macro includes temperature
Press monitoring device, sound wave resistance testing device, axial deformation and radial deformation testing device and TDR Test and thermal conductivity test dress
It sets, the clamper reaction kettle and physical parameter test macro are mounted in an instruction case.
2. gas hydrates rock sample physical parameters measurement instrument as described in claim 1, which is characterized in that the instrument cabinet top
Lifting device is arranged in portion, and the clamper reaction kettle completes oscilaltion campaign by the lifting device, and uses insulating base
Clamper reaction kettle is separated with instruction case.
3. gas hydrates rock sample physical parameters measurement instrument as described in claim 1, which is characterized in that the temperature and pressure monitoring
Device includes being mounted on the intracorporal temperature probe of kettle and differential pressure pick-up, and the temperature probe is for obtaining entire clamper reaction
Kettle temperature degree；It is connect in the intracorporal pressure stabilizing gas tank of kettle with the error of measurement pressure pressure stabilizing pod aperture on autoclave body plug, error of measurement presses pressure stabilizing pod aperture pipeline
Connected with gas injection suction line and while be connected to natural gas supply gas cylinder, pressure stabilizing gas tank cavity is connected respectively to autoclave body cavity
Differential pressure pick-up；When synthesis of natural gas hydrate, while it being filled with natural gas into pressure stabilizing gas tank and autoclave body, it is after pressure stabilisation,
Differential pressure pick-up is zero at this time；The natural gas for closing pressure stabilizing gas tank and autoclave body injects valve, with the formation of gas hydrates,
Natural gas in autoclave body is consumed, pressure reduction, and differential pressure pick-up reads the pressure difference that pressure stabilizing gas tank and autoclave body are formed.
4. gas hydrates rock sample physical parameters measurement instrument as described in claim 1, which is characterized in that the sound wave resistance
Test device includes Low ESR sonic probe, oscillograph and electric bridge instrument, and the Low ESR sonic probe is divided into probe and test
Head, above-mentioned probe tip face post stainless steel thin slice；Lower probe is linked together by lower probe socket and autoclave body plug, lower probe socket
It is equipped with Sealing shield ring and sealing ring between autoclave body plug, sealing ring is equipped between lower probe socket and lower probe；Upper probe passes through spy
Skull is connect with axis pressure loading device；Resistance, the sound wave lead of upper probe are connect with the upper probe lead wire device on autoclave body plug；Axis
Pressure loading device is made of piston cylinder and piston, and axis pressure loading device is connect by screw with autoclave body plug；It is installed on piston cylinder
There is axis pressure load pipeline, hydraulic oil enters in piston cylinder by loading pipeline, pushes piston mobile, piston is pushed to pop one's head in and be moved
Dynamic, upper probe applies axial compressive force to gas hydrates.
5. gas hydrates rock sample physical parameters measurement instrument as claimed in claim 4, which is characterized in that the axial deformation
It include axial deformation device and radial deformation device with radial deformation testing device, the axial deformation device and insulating base and piston cylinder
Connection；The radial direction deformation device is mounted on outside infiltration srite.
6. gas hydrates rock sample physical parameters measurement instrument as described in claim 1, which is characterized in that the TDR Test
And testing device for measuring thermal conductivity includes being mounted on the intracorporal TDR probe of kettle and thermal conductivity test probe, the TDR probe and thermal conductivity are surveyed
Needle is soundd out to protrude into the porous media for synthesis of natural gas hydrate.
7. gas hydrates rock sample physical parameters measurement instrument as described in claim 1, which is characterized in that the infiltration srite
For polytetrafluoroethylene (PTFE) strainer.
8. gas hydrates rock sample physical parameters measurement instrument as described in claim 1, which is characterized in that the autoclave body plug
On be drilled with through-hole, for axis press load pipeline, natural gas injection pipeline and physical parameter test data line down-lead device installation.
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