CN111650354A - Hydrate evaluation experiment system and method - Google Patents

Hydrate evaluation experiment system and method Download PDF

Info

Publication number
CN111650354A
CN111650354A CN202010599557.7A CN202010599557A CN111650354A CN 111650354 A CN111650354 A CN 111650354A CN 202010599557 A CN202010599557 A CN 202010599557A CN 111650354 A CN111650354 A CN 111650354A
Authority
CN
China
Prior art keywords
valve
gas
hydrate
twenty
outlet
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.)
Granted
Application number
CN202010599557.7A
Other languages
Chinese (zh)
Other versions
CN111650354B (en
Inventor
张健
王金意
荆铁亚
赵文韬
张国祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huaneng Clean Energy Research Institute
China Huaneng Group Co Ltd
Original Assignee
Huaneng Clean Energy Research Institute
China Huaneng Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huaneng Clean Energy Research Institute, China Huaneng Group Co Ltd filed Critical Huaneng Clean Energy Research Institute
Priority to CN202010599557.7A priority Critical patent/CN111650354B/en
Publication of CN111650354A publication Critical patent/CN111650354A/en
Priority to PCT/CN2020/124916 priority patent/WO2022000891A1/en
Application granted granted Critical
Publication of CN111650354B publication Critical patent/CN111650354B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • G01N33/222—Solid fuels, e.g. coal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/008—Feed or outlet control devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10—Working-up natural gas or synthetic natural gas
    • C10L3/108—Production of gas hydrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The hydrate evaluation experiment system and method provided by the invention comprise a first gas cylinder, a second gas cylinder, a flow control device, a flow controller, a magnetic stirring container, a chemical reagent injection device, a closed loop and the like, wherein the first gas cylinder is used for storing CH4Or a natural gas mixture; the gas outlet of the first gas cylinder is connected with the magnetic stirring container through a flow controller; the second gas cylinder is used for storing CO2A gas; the gas outlet of the second gas cylinder is connected with the magnetic stirring container through a flow control device; the magnetic stirring container is provided with a chemical reagent injection port, and the chemical reagent is injected into the chemical reagent injection portThe injection port is connected with an outlet of the chemical reagent injection device; the closed loop is respectively connected with the first gas cylinder, the second gas cylinder and the chemical reagent injection device through a twentieth valve; the invention can simulate the formation of the hydrate and simultaneously analyze the influence of the hydrate on the formation and decomposition rules of the hydrate, thereby facilitating the development of further detailed analysis and research and guiding the production.

Description

Hydrate evaluation experiment system and method
Technical Field
The invention relates to the field of hydrate development, in particular to a hydrate evaluation experiment system and method.
Background
The natural gas hydrate is a naturally-existing compound with a cage-shaped microstructure, is an efficient clean energy source with high combustion heat value, and the energy generated by combustion of the natural gas hydrate is tens of times more than that of common fossil fuel with the same mass. The natural gas hydrate is a cage-shaped crystalline compound which is formed by light hydrocarbon gas micromolecules such as methane and the like in natural gas and water molecules under certain temperature and pressure conditions, is similar to loose ice or dense snow in appearance.
With the further research on the method, a plurality of mining methods are proposed, and the main principle is to change the temperature and the pressure of a combustible ice reservoir, break the phase balance of the combustible ice reservoir and decompose the combustible ice to obtain methane gas. During the natural gas exploitation, storage and transportation, natural gas hydrate often causes the blockage of pipelines, valves and equipment, although there are many methods for preventing natural gas hydrate, there are 5 methods for preventing natural gas hydrate embolism in pipelines: dehydration, depressurization, heating, mechanical, chemical.
Research shows that chemical methods are generally the most common and effective methods for injecting chemical agents (such as methanol and the like) into the stratum, and can improve the phase equilibrium condition of hydrate formation, so that the pore pressure and temperature conditions of the stratum cannot meet the phase equilibrium condition of the hydrate, and the hydrate is decomposed and phase-changed to generate methane gas for collection. The chemical method can inhibit the formation of natural gas hydrate and can also dissolve the formed natural gas hydrate.
The existing experimental system for hydrate synthesis and exploitation research has the following defects: (1) the subjects were mainly on natural gas compounds, and rarely on CO2Of a hydrate. (2) There is no study on the properties of hydrate inhibitors and accelerators. (3) When corresponding gas and liquid are output, the design on the aspect of pressure control is simpler, and particularly, when a pressure reduction decomposition experiment is carried out, the output pressure is not stable enough, and pulses possibly influence the accuracy of metering and the experiment effect. (4) After the combustible ice is formed, the specific distribution conditions of internal temperature and pressure are not accurately measured, the precision is not enough, and inconvenience is brought to experimental research. (5) Some devices also have potential safety hazards or are inconvenient to operate, the experimental process cannot be better controlled, and great inconvenience is brought to the development of experimental research. (6) No gas hydrate plugs and corresponding precautions in the pipeline were investigated.
Disclosure of Invention
The invention aims to provide a hydrate evaluation experiment system and method, which overcome the defects of the existing hydrate synthesis and exploitation research experiment.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a hydrate evaluation experiment system, which comprises a first gas cylinder, a second gas cylinder, a flow control device, a flow controller, a magnetic stirring container, a chemical reagent injection device and a closed loop, wherein,
the first gas cylinder is used for storing CH4Or a natural gas mixture; the gas outlet of the first gas cylinder is connected with the magnetic stirring container through a flow controller;
the second gas cylinder is used for storing CO2A gas; the gas outlet of the second gas cylinder is connected with the magnetic stirring container through a flow control device;
a chemical reagent injection port is arranged on the magnetic stirring container and is connected with an outlet of the chemical reagent injection device;
the closed loop is respectively connected with the first gas cylinder, the second gas cylinder and the chemical reagent injection device through a twentieth valve.
Preferably, the closed loop includes a third pressure gauge, a first thermometer, a window, a twenty-second valve, a differential pressure sensor, a twenty-third valve, a twenty-fourth valve, a twenty-fifth valve, a circulating pump and a twenty-sixth valve, wherein an outlet of the twentieth valve is connected to an inlet of the window, the twenty-second valve and the twenty-fourth valve are respectively connected to an outlet of the window, an outlet of the twentieth valve is combined with outlets of the twenty-fourth valve through the differential pressure sensor and the twenty-third valve in sequence, and then is connected with inlets of the twenty-fifth valve and the circulating pump, an outlet of the circulating pump is combined with an outlet of the twenty-fifth valve through the twenty-sixth valve, and then is connected to an inlet of the window.
Preferably, the outlets of the first gas cylinder and the second gas cylinder are both connected with a high-pressure storage tank through a gas booster pump, and the outlets of the high-pressure storage tank are respectively connected with a flow controller and a flow control device.
Preferably, an air inlet of the gas booster pump is connected with a low-pressure storage tank through a tenth valve, and the low-pressure storage tank is connected with an air compressor.
Preferably, the low-pressure storage tank is also connected with a chemical agent injection device.
Preferably, the flow control device comprises a first liquid pool, a first piston and a second piston, wherein a liquid outlet of the first liquid pool is respectively connected with liquid inlets of the first piston and the second piston through a constant pressure pump; and the gas outlets of the first piston and the second piston are respectively connected with the magnetic stirring container through a seventh valve and an eighth valve.
Preferably, the chemical reagent injection device comprises a second liquid pool, a third piston and a fourth piston, wherein a liquid outlet of the second liquid pool is connected with liquid inlets of the third piston and the fourth piston through a constant flow pump respectively; and the chemical reagent outlets of the third piston and the fourth piston are respectively connected with the twentieth valve through a sixteenth valve and an eighteenth valve.
Preferably, the experimental system further comprises an exhaust device for vacuumizing, wherein the exhaust device comprises a twenty-seventh valve, the twenty-seventh valve is arranged on the closed loop, an outlet of the twenty-seventh valve is respectively connected with the buffer tank and the vacuum pump, and the buffer tank is provided with a fourth pressure gauge and a twenty-eighth valve.
Preferably, the experimental system further comprises a gas-liquid separation structure, the gas-liquid separation structure comprises a gas-liquid separator, and an inlet of the gas-liquid separator is connected with an outlet of the magnetic stirring container through a back pressure valve and a twenty-ninth valve in sequence; a gas outlet of the gas-liquid separator is connected with a wet flowmeter; and a liquid outlet of the gas-liquid separator is connected with a metering container.
A hydrate evaluation experiment method based on the hydrate evaluation experiment system comprises the following steps:
according to the purpose of the experiment, A, B, C, D is selected to carry out the experiment alternatively in four conditions:
a: when no chemical reagent is used for synthesizing the hydrate, synthesizing combustible ice:
CH to be stored in a first gas cylinder4Or after the natural gas mixed gas is pressurized, the natural gas mixed gas is sent into a magnetic stirring container through a flow controller, experimental process parameters are set according to experimental process requirements, and combustible ice is synthesized;
synthesis of CO2Hydrate:
CO to be stored in a second cylinder2After gas pressurization, the gas is directly sent into a magnetic stirring container, experimental process parameters are set according to experimental process requirements, and CO is carried out2Synthesizing a hydrate;
b: when a chemical reagent is used for synthesizing the hydrate, synthesizing combustible ice:
CH to be stored in a first gas cylinder4Or after the natural gas mixed gas is pressurized, the natural gas mixed gas is sent into the magnetic stirring container through the flow controller; meanwhile, injecting a chemical reagent into the magnetic stirring container by using a chemical reagent injection device, setting experiment process parameters according to experiment process requirements, and synthesizing combustible ice;
synthesis of CO2Hydrate:
CO to be stored in a second cylinder2Directly feeding the gas into a magnetic stirring container after pressurizing; all in oneIn the process, a chemical reagent injection device is used for injecting the chemical reagent into the magnetic stirring container, experimental technological parameters are set according to experimental technological requirements, and CO is carried out2Synthesizing a hydrate;
c: the chemical reagents were tested:
injecting a chemical reagent into the closed loop through a chemical reagent injection device, setting the flow speed of liquid, and starting a circulating pump to enable the chemical reagent to flow in the closed loop; measuring the pressure difference of the chemical reagent at the inlet and the outlet of the twenty-fourth valve 52 by a pressure difference sensor;
d: observing synthesis or decomposition of hydrates
Introducing CO2Gas or CH4Sent into a closed loop through a twentieth valve, and the experimental temperature is set by utilizing a temperature control device arranged on the closed loop so as to simulate CO2Gas or CH4In the pipeline transportation process, hydrates are formed due to temperature reduction, and when the temperature is raised, whether hydrate plungers are formed in the valve and the narrow and long pipeline or not is judged; and the device is used for simulating the removal of the hydrate plunger in the circulating pipeline by a chemical method.
Compared with the prior art, the invention has the beneficial effects that:
compared with the existing similar experimental equipment, the hydrate evaluation experimental system provided by the invention has the following advantages:
(1) the subject can be directed to both natural gas compounds and to CO2Of a hydrate.
(2) The invention can be used for researching the properties of the hydrate inhibitor and the accelerator, such as friction resistance and the like.
(3) When corresponding gas and liquid are output, the pressure is controlled stably without pulse, so that the metering accuracy and the experimental effect are ensured.
(4) When natural gas is transported through a pipeline, hydrate is easily formed, and the pipeline, the valve and equipment are often blocked.
Furthermore, this system design has a back pressure valve, when carrying out the step-down experiment, can stabilize output pressure.
The invention is suitable for natural gas hydrate and CO2Relevant experimental tests of the hydrate are described, and relevant experimental operation methods are introduced. The experimental system can be used for simulating the formation of the hydrate, simulating the pressure reduction method, the heating method and the chemical method to exploit the combustible ice, and evaluating the influence of relevant factors such as temperature, pressure, the type and concentration of chemical reagents, reaction time and the like on the exploitation of the combustible ice. Meanwhile, the test system can be used for testing the properties of the hydrate inhibitor sample under different test conditions such as temperature, pressure, flow rate and the like; and meanwhile, the influence of the hydrate on the formation and decomposition rules of the hydrate is analyzed, so that further detailed analysis and research can be conveniently carried out, and the production is guided.
Drawings
FIG. 1 is a schematic diagram of an experimental system according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the hydrate evaluation experiment system provided by the present invention includes a first gas cylinder 1, a second gas cylinder 2, a first valve 3, a second valve 4, a gas pressurizing pump 5, a first safety valve 6, a high-pressure storage tank 7, a first pressure gauge 8, a pressure regulating valve 9, a second pressure gauge 10, a third valve 11, a flow controller 12, a fourth valve 13, a fifth valve 14, a first liquid tank 15, a constant-pressure pump 16, a sixth valve 17, a first piston 18, a seventh valve 19, an eighth valve 20, a second piston 21, a ninth valve 22, a back-pressure valve 23, a tenth valve 24, an air compressor 25, a low-pressure storage tank 26, a second safety valve 27, an eleventh valve 28, a twelfth valve 29, a thirteenth valve 30, a purge container 31, a fourteenth valve 32, a second liquid tank 33, a constant-flow pump 34, a fifteenth valve 35, a third piston 36, a sixteenth valve 37, a seventeenth valve 38, a fourth piston 39, and an eighteenth valve 40, A nineteenth valve 41, a twentieth valve 42, a third pressure gauge 43, a first temperature gauge 44, a first camera 45, a window 46, a first cold light source 47, a twenty-first valve 48, a twentieth valve 49, a differential pressure sensor 50, a twenty-third valve 51, a twenty-fourth valve 52, a third safety valve 53, a twenty-fifth valve 54, a circulating pump 55, a twenty-sixth valve 56, a vacuum pump 57, a buffer tank 58, a fourth pressure gauge 59, a twenty-seventh valve 60, a twenty-eighth valve 61, a thirty-second valve 62, a magnetic stirring container 63, a high and low temperature bath 64, a second cold light source 65, a second camera 66, a second temperature gauge 67, a twenty-ninth valve 68, a thirty-third valve 69, a back pressure valve 70, a back pressure container 71, a pressure gauge 72, a fifth pressure gauge 73, a wet flow meter 74, a gas-liquid separator 75, a thirty-valve 77 and a metering container 78, wherein gas inlets of the first gas cylinder 1 and the second gas cylinder 2 are connected with a gas booster pump 5, the gas outlet of the gas booster pump 5 is respectively connected with the high-pressure storage tank 7 and the low-pressure storage tank 26.
A first valve 3 is arranged between the first gas bottle 1 and the gas booster pump 5.
A second valve 4 is arranged between the second gas bottle 2 and the gas booster pump 5.
A tenth valve 24 is provided between the gas booster pump 5 and the low-pressure tank 26, and the gas booster pump 5 is powered through the tenth valve 24.
The high-pressure storage tank 7 is provided with a first safety valve 6 and a first pressure gauge 8.
The high-pressure tank 7 passes through the pressure regulating valve 9, the fifth valve 14, and the back pressure valve 23 in this order.
A second pressure gauge 10 is arranged between the pressure regulating valve 9 and the fifth valve 14.
A flow controller 12 is arranged between the air inlet of the fifth valve 14 and the air inlet of the backpressure valve 23, a third valve 11 is arranged at the inlet of the flow controller 12, and a fourth valve 13 is arranged at the air outlet of the flow controller 12.
A seventh valve 19 and a ninth valve 22 are sequentially arranged at the air outlet of the fifth valve 14, wherein the outlet of the seventh valve 19 is sequentially connected with the first piston 18 and the sixth valve 17; the outlet of the ninth valve 22 is connected to the second piston 21 and the eighth valve 20 in sequence.
The outlets of the sixth valve 17 and the eighth valve 20 are both connected with a constant pressure pump 16, and the constant pressure pump 16 is connected with a first liquid pool 15.
The outlet of the back pressure valve 23 is connected to the inlet of the magnetic stirring vessel 63 via a thirtieth valve 62.
The magnetic stirring container 63 is arranged in a high-low temperature bath 64, and a second cold light source 65 and a second camera 66 are arranged on the high-low temperature bath 64.
The outlet of the magnetic stirring container 63 is connected with a back pressure valve 70 through a second thermometer 67, a twenty-ninth valve 68 and a thirty-third valve 69 in sequence.
The outlet of the back pressure valve 70 is connected to a back pressure vessel 71 and a gas-liquid separator 75, respectively.
The gas-liquid separator 75 is provided with a wet flowmeter 74 at a gas outlet.
The liquid outlet of the gas-liquid separator 75 is connected to a metering vessel 77 via a low thirty-one valve 76.
An air inlet provided on the low-pressure storage tank 26 is connected with an air compressor 25.
The low-pressure tank 26 is provided with a second relief valve 27 and an eleventh valve 28.
A gas outlet on the low-pressure storage tank 26 is respectively connected with a tenth valve 29 and a thirteenth valve 30, wherein the outlet of the thirteenth valve 30 is sequentially connected with a cleaning container 31 and a fourteenth valve 32; the outlets of the fourteenth valve 32 and the twelfth valve 29 are both connected to the inlet of the nineteenth valve 41. The cleaning liquid in the cleaning vessel 31 is pressed into the following piping system by the gas pressure in the low-pressure tank 26 while the piping solid particles are displaced by the gas.
A sixteenth valve 37 and an eighteenth valve 40 are arranged at an inlet of the nineteenth valve 41, wherein an outlet of the sixteenth valve 37 is connected with the third piston 36 and the fifteenth valve 35 in sequence; the outlet of the eighteenth valve 40 is sequentially connected with a fourth piston 40 and a seventeenth valve 38; the outlets of the fifteenth valve 35 and the seventeenth valve 35 are connected to a constant flow pump 34, and the outlet of the constant flow pump 34 is connected to the second liquid pool 33.
The outlet of the nineteenth valve 41 is connected to the inlet of the twentieth valve 42,
the outlet of the twentieth valve 42 is connected with a closed loop, the closed loop comprises a window 46, a twenty-second valve 49, a differential pressure sensor 50, a twenty-third valve 51, a twenty-fourth valve 52, a twenty-fifth valve 54, a circulating pump 55, a twenty-sixth valve 56 and a thirty-third valve 69, the outlet of the chemical reagent injection device is connected with the inlet of the window 46, the outlet of the window 46 is respectively connected with the twenty-second valve 49 and the twenty-fourth valve 52, the outlet of the twenty-second valve 49 is combined with the outlet of the twenty-fourth valve 52 through the differential pressure sensor 50 and the twenty-third valve 51 in sequence and then is respectively connected with the inlets of the twenty-fifth valve 54 and the circulating pump 55, and the outlet of the circulating pump 55 is combined with the outlet of the twenty-fifth valve 54 through the twenty-sixth valve 56 and then is connected with the inlet.
A third pressure gauge 43 and a first temperature gauge 44 are sequentially arranged between the outlet of the twentieth valve 42 and the window 46.
A first camera 45 and a first cold light source 47 are arranged on the window 46; the first cold light source 47 can emit light to illuminate the window 46, so that the first camera 45 can conveniently shoot internal experiment phenomena.
And a twenty-first valve 48 is also arranged on the closed loop and is used for emptying when the experiment pipeline is cleaned, and removing residual liquid and the like.
A third relief valve 53 is designed between the twenty-fourth valve 52 and the twenty-fifth valve 54.
The closed loop is connected with the back pressure valve 70 through a thirtieth valve 69.
And an exhaust device for vacuumizing is further arranged on the closed loop, the exhaust device comprises a twenty-seventh valve 60, an outlet of the twenty-seventh valve 60 is respectively connected with a buffer tank 58 and a vacuum pump 57, and a fourth pressure gauge 59 and a twenty-eighth valve 61 are arranged on the buffer tank 58.
The magnetic stirring container 63 and the high-low temperature bath 64 are both made of transparent materials.
The second cold light source 65 and the second camera 66 are arranged on the outer side of the high-low temperature bath groove 64, and the second cold light source 65 can emit light to irradiate the interior of the high-low temperature bath groove 64, so that the second camera 66 can shoot internal experimental phenomena conveniently.
Sufficient CH for the internal reservoir of the first cylinder 14Or a natural gas mixture; sufficient CO in the inner reservoir of the second gas cylinder 22A gas.
The pressure regulating valve 9 can regulate the pressure of output gas; the flow controller 12 can regulate the flow of the output gas, and this branch is selected when outputting natural gas.
The first liquid pool 15 and the second liquid pool 33 are filled with enough clear water.
When CO is output from the second gas cylinder 22When in gas, clean water is conveyed at constant pressure through the constant pressure pump 16 to replace CO sucked by the first piston 18 and the second piston 212The gas is output through a back pressure valve 23.
The cleaning vessel 31 can be opened for storage of fresh water or cleaning agents for synthesis of hydrates or cleaning of plant lines. The tops of the third piston 36 and the fourth piston 39 are used for storing chemical reagent experiment samples.
The magnetic stirring vessel 63 can be adjusted in rotation speed, and the wet flowmeter 74 can measure the mass of the gas flowing through. The gas-liquid separator 75 can separate gas-liquid fluid flowing therethrough. The metering container 77 can meter the weight of the liquid separated inside.
All connecting pipelines of the system adopt 316L pipelines to prevent corrosion of internal fluid to the pipelines, and the pipelines are wrapped by insulating materials in a winding mode to prevent local temperature reduction, so that secondary generation of hydrate or generation of ice can be caused, pipelines are blocked, the effect of experiment development is influenced, and potential safety hazards are caused to the experiment. The parameters such as the discharge capacity, the temperature and the pressure can be used for acquiring data through the data acquisition control card and carrying out real-time monitoring and data acquisition on the flow, the temperature and the pressure in the experiment system.
The chemical agent of the present invention comprises a hydrate inhibitor or a hydrate accelerant.
The test method specifically comprises the following steps:
(1) as shown, the equipment is cleaned, the air tightness of the system is checked, relevant valves are adjusted,
(2) the vacuum pump 57 is then turned on to evacuate the test system and the air inside the pipeline, thereby evacuating the air that interferes with the test and is ready for the test.
(3) Supercharging: turning on the air compressor provides sufficient power for the gas booster pump 5.
(4) The experiment was started: the experiment was started in four cases A, B, C, D
A. Synthesis of hydrate without chemical reagent
The twentieth valve 42 and the twenty-ninth valve 68 are closed.
Synthesizing combustible ice:
the first valve 3, the third valve 11 and the fourth valve 13 are opened, the fifth valve 14 is closed, and CH to be stored in the first gas cylinder 1 is stored4Or the natural gas mixture is pressurized by the gas booster pump 5, then is sent into the high-pressure storage tank 7 to be stored, collects the pressure of the high-pressure storage tank 7 through the first pressure gauge 8, and is released through the first safety valve 6 to ensure safety.
The high-pressure gas in the high-pressure storage tank 7 is regulated by a pressure regulating valve 9, the pressure of the high-pressure gas is measured by a second pressure gauge 10, the high-pressure gas is sent to a back pressure valve 23 through a third valve 11, a flow controller 12 and a fourth valve 13 to be regulated, and then the high-pressure gas is sent to a magnetic stirring container 63, and experimental technological parameters are set according to experimental technological requirements to synthesize combustible ice.
Separation of mixed gas:
the mixed gas passes through a magnetic stirring container 63, experimental technological parameters are set according to experimental technological requirements, and hydrate is synthesized; the remaining gas passes through a gas-liquid separator 75.
And is used to meter the mass of the gas separated by the gas-liquid separator 75 by means of a wet flow meter 74.
The mass of separated liquid is metered by means of a metering container 77.
Synthesis of CO2Hydrate:
the second valve 4, the fifth valve 14, the sixth valve 17, the seventh valve 19, the eighth valve 20, and the ninth valve 22 are opened, the third valve 11 and the fourth valve 1 are closed, and CO to be stored in the second gas cylinder 2 is stored2Gas is pressurized through the gas booster pump 5, then is sent into the high-pressure storage tank 7 and is stored, and the pressure of the high-pressure storage tank 7 is collected through the first pressure gauge 8, and is released through the first safety valve 6 to ensure safety.
The high-pressure gas in the high-pressure storage tank 7 is regulated by the pressure regulating valve 9, the pressure of the high-pressure gas is measured by the second pressure gauge 10, then the high-pressure gas is sent to the fifth valve 14, the constant pressure pump 16 is opened, and the clean water in the first liquid pool 15 is sent to the outsideInto the first piston 18 and the second piston 21 for metering CO2Gas while ensuring CO2Quantitative injection of special phase gas; then the mixture is sent to a back pressure valve 23 for pressure regulation, and then sent into a magnetic stirring container 63, experimental technological parameters are set according to experimental technological requirements, and CO is carried out2And (4) synthesizing a hydrate. And finally testing the separation effect under different experimental conditions by using a gas-liquid separation structure.
B. When a chemical reagent is used for synthesizing the hydrate, synthesizing combustible ice:
will CH4Feeding into a magnetic stirring container 63; meanwhile, injecting a chemical reagent into the magnetic stirring container 63 by using a chemical reagent injection device, setting experimental technological parameters according to experimental technological requirements, and synthesizing combustible ice; and finally testing the separation effect under different experimental conditions by using a gas-liquid separation structure.
Synthesis of CO2Hydrate:
introducing CO2Feeding into a magnetic stirring container 63; meanwhile, a chemical reagent injection device is used for injecting the chemical reagent into the magnetic stirring container 63, experimental technological parameters are set according to experimental technological requirements, and CO is carried out2And (4) synthesizing a hydrate.
Use of chemical injection device: the second constant pressure pump 34 is turned on, and the clean water in the second liquid pool 33 is injected into the third piston 36 and the fourth piston 39, and the chemical reagent stored at the top of the pistons is injected into the magnetic stirring container 63 through the pistons.
And finally testing the separation effect under different experimental conditions by using a gas-liquid separation structure.
C. The chemical reagents were tested:
injecting the chemical agent into the window 46 by the chemical agent injection means, closing the twentieth valve 42, the twenty-fifth valve 54, and the thirtieth valve 69; opening the twentieth valve 49, the twentieth valve 51 and the twenty-fourth valve 52, setting the flow rate of the liquid, starting the circulating pump 55, enabling the chemical reagent to flow in a closed loop formed by the window 46, the twenty-fourth valve 52, the circulating pump 55 and the window 46 for experimental evaluation of the thermodynamic chemical reagent, the kinetic chemical reagent, the polymerization inhibitor or the composite chemical reagent; at the same time, the pressure difference at the inlet and outlet of the twenty-fourth valve 52 is collected by the pressure difference sensor 50.
D. Observing synthesis or decomposition of hydrates
Introducing CO2Gas or CH4Sent into the closed loop through a twentieth valve 42, and the experimental temperature is set by a temperature control device arranged on the closed loop so as to simulate CO2Gas or CH4In the pipeline transportation process, hydrates are formed due to temperature reduction, and when the temperature is raised, whether hydrate plungers are formed in the valve and the narrow and long pipeline or not is judged; it can also be used to simulate the chemical removal of hydrate plugs in the recycle line. And finally, the gas-liquid mixture passes through a thirtieth valve 69 and a gas-liquid separation structure to test the separation effect under different experimental conditions.

Claims (10)

1. A hydrate evaluation experiment system is characterized by comprising a first gas cylinder (1), a second gas cylinder (2), a flow control device, a flow controller (12), a magnetic stirring container (63), a chemical reagent injection device and a closed loop, wherein,
the first gas cylinder (1) is used for storing CH4Or a natural gas mixture; the gas outlet of the first gas bottle (1) is connected with a magnetic stirring container (63) through a flow controller (12);
the second gas cylinder (2) is used for storing CO2A gas; the gas outlet of the second gas bottle (2) is connected with a magnetic stirring container (63) through a flow control device;
a chemical reagent injection port is arranged on the magnetic stirring container (63) and is connected with an outlet of a chemical reagent injection device;
the closed loop is respectively connected with the first gas cylinder (1), the second gas cylinder (2) and the chemical reagent injection device through a twentieth valve (42).
2. A hydrate evaluation experiment system according to claim 1, wherein the closed loop comprises a third pressure gauge (43), a first temperature gauge (44), a window (46), a second valve (49), a differential pressure sensor (50), a twenty-third valve (51), a twenty-fourth valve (52), a twenty-fifth valve (54), a circulation pump (55) and a twenty-sixth valve (56), wherein an outlet of the twentieth valve (42) is connected with an inlet of the window (46), outlets of the window (46) are respectively connected with the twenty-second valve (49) and the twenty-fourth valve (52), an outlet of the twentieth valve (49) is combined with an outlet of the twenty-fourth valve (52) through the differential pressure sensor (50) and the twenty-third valve (51) in sequence and then is connected with inlets of the twenty-fifth valve (54) and the circulation pump (55), and an outlet of the circulation pump (55) is connected with an outlet of the twenty-fifth valve (54) through the twenty-sixth valve (56) Merge and then connect the entrances of the viewing windows (46).
3. The hydrate evaluation experiment system according to claim 1, wherein the outlets of the first gas cylinder (1) and the second gas cylinder (2) are connected with a high-pressure storage tank (7) through a gas booster pump (5), and the outlets of the high-pressure storage tank (7) are respectively connected with a flow controller (12) and a flow control device.
4. A hydrate evaluation experiment system according to claim 3, wherein the gas inlet of the gas booster pump is connected with a low-pressure storage tank (26) through a tenth valve (24), and the low-pressure storage tank (26) is connected with an air compressor (25).
5. A hydrate evaluation experiment system according to claim 4, wherein the low-pressure storage tank (26) is further connected with a chemical agent injection device.
6. A hydrate evaluation experiment system according to claim 1, wherein the flow control device comprises a first liquid pool (15), a first piston (18) and a second piston (21), wherein the liquid outlet of the first liquid pool (15) is connected with the liquid inlets of the first piston (18) and the second piston (21) through a constant pressure pump (16); the gas outlets of the first piston (18) and the second piston (21) are respectively connected with a magnetic stirring container (63) through a seventh valve (19) and a ninth valve (22) via a backpressure valve (23).
7. The hydrate evaluation experiment system according to claim 1, wherein the chemical reagent injection device comprises a second liquid pool (33), a third piston (36) and a fourth piston (39), wherein a liquid outlet of the second liquid pool (33) is connected with liquid inlets of the third piston (36) and the fourth piston (39) through a constant flow pump (34); and chemical agent outlets of the third piston (36) and the fourth piston (39) are respectively connected with a twentieth valve (42) through a sixteenth valve (37) and an eighteenth valve (40) and a nineteenth valve (41).
8. The hydrate evaluation experiment system according to claim 1, further comprising an exhaust device for vacuumizing, wherein the exhaust device comprises a twenty-seventh valve (60), the twenty-seventh valve (60) is arranged on a closed loop, an outlet of the twenty-seventh valve (60) is respectively connected with a buffer tank (58) and a vacuum pump (57), and a fourth pressure gauge (59) and a twenty-eighth valve (61) are arranged on the buffer tank (58).
9. The hydrate evaluation experiment system as claimed in claim 1, further comprising a gas-liquid separation structure, wherein the gas-liquid separation structure comprises a gas-liquid separator (75), and an inlet of the gas-liquid separator (75) is connected with an outlet of the magnetic stirring container (63) through a back-pressure valve (70) and a twenty-ninth valve (68) in sequence; the top gas outlet of the gas-liquid separator (75) is connected with a wet flowmeter (74); the bottom liquid outlet of the gas-liquid separator (75) is connected with a metering container (77).
10. A hydrate evaluation experiment method, based on the hydrate evaluation experiment system of any one of claims 1 to 9, comprising the following steps:
according to the purpose of the experiment, A, B, C, D is selected to carry out the experiment alternatively in four conditions:
a: when no chemical reagent is used for synthesizing the hydrate, synthesizing combustible ice:
CH to be stored in a first gas cylinder (1)4Or naturalAfter the gas mixture is pressurized, the gas mixture is sent into a magnetic stirring container (63) through a flow controller (12), experimental technological parameters are set according to experimental technological requirements, and combustible ice is synthesized;
synthesis of CO2Hydrate:
CO to be stored in a second gas cylinder (2)2After the gas is pressurized, the gas is directly sent into a magnetic stirring container (63), experimental process parameters are set according to experimental process requirements, and CO is carried out2Synthesizing a hydrate;
b: when a chemical reagent is used for synthesizing the hydrate, synthesizing combustible ice:
CH to be stored in a first gas cylinder (1)4Or after the natural gas mixed gas is pressurized, the natural gas mixed gas is sent into a magnetic stirring container (63) through a flow controller (12); meanwhile, injecting a chemical reagent into the magnetic stirring container (63) by using a chemical reagent injection device, setting experiment process parameters according to experiment process requirements, and synthesizing combustible ice;
synthesis of CO2Hydrate:
CO to be stored in a second gas cylinder (2)2After being pressurized, the gas is directly sent into a magnetic stirring container (63); meanwhile, chemical reagents are injected into the magnetic stirring container (63) by a chemical reagent injection device, experimental technological parameters are set according to experimental technological requirements, and CO is carried out2Synthesizing a hydrate;
c: the chemical reagents were tested:
injecting a chemical reagent required by an experiment into the closed loop through a chemical reagent injection device, setting the flow speed of liquid, and starting a circulating pump to enable the chemical reagent to flow in the closed loop; measuring the pressure difference of the chemical reagent at the inlet and the outlet of the twenty-four valve (52) through a pressure difference sensor;
d: observing synthesis or decomposition of hydrates
Introducing CO2Gas or CH4Sent into the closed loop through a twentieth valve (42), and the experimental temperature is set by a temperature control device arranged on the closed loop so as to simulate CO2Gas or CH4In the pipeline transportation process, hydrates are formed due to temperature reduction or pressurization, and when the temperature is increased or the pressure is increased, the valveWhether hydrate plungers are formed in the door and the narrow and long pipeline; and the device is used for simulating the removal of the hydrate plunger in the circulating pipeline by a chemical method.
CN202010599557.7A 2020-06-28 2020-06-28 Hydrate evaluation experiment system and method Active CN111650354B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010599557.7A CN111650354B (en) 2020-06-28 2020-06-28 Hydrate evaluation experiment system and method
PCT/CN2020/124916 WO2022000891A1 (en) 2020-06-28 2020-10-29 Hydrate evaluation experiment system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010599557.7A CN111650354B (en) 2020-06-28 2020-06-28 Hydrate evaluation experiment system and method

Publications (2)

Publication Number Publication Date
CN111650354A true CN111650354A (en) 2020-09-11
CN111650354B CN111650354B (en) 2023-11-03

Family

ID=72352424

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010599557.7A Active CN111650354B (en) 2020-06-28 2020-06-28 Hydrate evaluation experiment system and method

Country Status (2)

Country Link
CN (1) CN111650354B (en)
WO (1) WO2022000891A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112108096A (en) * 2020-10-26 2020-12-22 河南理工大学 Natural gas hydrate synthesis device and method integrating multiple strengthening methods
CN112461837A (en) * 2020-11-05 2021-03-09 东北石油大学 Hydrate synthesis and decomposition visual experimental device
CN112557624A (en) * 2020-12-24 2021-03-26 广州海洋地质调查局 Natural gas hydrate inverse phase transition formation evolution law experimental method and device
WO2022000891A1 (en) * 2020-06-28 2022-01-06 中国华能集团有限公司 Hydrate evaluation experiment system and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114624419B (en) * 2022-03-15 2023-10-10 广东石油化工学院 Visual development simulation device and experimental method for hydrate

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103645285A (en) * 2013-12-17 2014-03-19 中国海洋石油总公司 Visualized natural gas hydrate simulation test device and method
CN105699247A (en) * 2016-03-04 2016-06-22 西南石油大学 Experimental method for synthesizing and decomposing natural gas hydrate and experiment system
CN105717271A (en) * 2016-03-11 2016-06-29 西南石油大学 Marine gas hydrate solid-state fluidization production experimental loop system
CN205538950U (en) * 2016-03-11 2016-08-31 西南石油大学 Solid -state fluidization exploitation experiment loop system of ocean gas hydrate
CN106010698A (en) * 2016-05-06 2016-10-12 西南石油大学 Rapid synthesis device for natural gas hydrate
US9598936B1 (en) * 2015-10-12 2017-03-21 China University Of Petroleum (East China) Apparatus and method for monitoring hydrate decomposition area under different drilling and production processes
CN109401801A (en) * 2018-11-16 2019-03-01 西南石油大学 Gas hydrates compound experiment circuit system under a kind of pressure oscillation
CN109557253A (en) * 2018-11-02 2019-04-02 广州海洋地质调查局 A kind of comprehensive hydrate simulation system and its experimental method
CN209173895U (en) * 2018-10-23 2019-07-30 山西晋城无烟煤矿业集团有限责任公司 A kind of methane hydrate synthesizer
CN110066696A (en) * 2019-06-05 2019-07-30 国家地质实验测试中心 Gas hydrates insitu analog and pressing mold molding integral system and method
CN110389126A (en) * 2019-06-27 2019-10-29 青岛海洋科学与技术国家实验室发展中心 Hydrate, which generates, decomposes visualization reaction system and memory effect evaluation method
CN110586013A (en) * 2019-10-15 2019-12-20 中国地质大学（北京） Carbon dioxide hydrate visualization experiment device and experiment method thereof
CN110761749A (en) * 2019-11-19 2020-02-07 中国华能集团有限公司 Simulation experiment system and experiment method for synthesis and exploitation of natural gas hydrate
CN110865153A (en) * 2019-12-02 2020-03-06 东北石油大学 Hydrate multiphase flow loop experiment device and experiment method
US20200096452A1 (en) * 2018-09-21 2020-03-26 Dalian University Of Technology Fully visual flow loop system for studying hydrate blockage
CN212622573U (en) * 2020-06-28 2021-02-26 中国华能集团有限公司 Hydrate evaluation experiment system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2909239Y (en) * 2006-06-14 2007-06-06 中国石油天然气股份有限公司 Hydrate inhibitor evaluation experimental device
CN101532936B (en) * 2009-04-14 2013-01-09 中国地质大学（武汉） Method and device for evaluating inhibiting ability of drilling fluid on formation and decomposition of hydrate
CN102094610A (en) * 2010-12-24 2011-06-15 中国科学院广州能源研究所 Experiment simulation system for exploiting natural gas hydrate by using CO2
CN102169112B (en) * 2010-12-29 2013-04-24 中国科学院广州能源研究所 Device and method for research of low-dosage inhibitor of natural gas hydrate
KR101621504B1 (en) * 2015-11-10 2016-05-16 한국지질자원연구원 Simulation Apparatus for sand production in gas hydrate production and the simulation method using the same
CN105486805B (en) * 2015-11-24 2017-03-29 西南石油大学 Gas hydrates multifunctional test system and method
CN105510529B (en) * 2015-12-04 2018-03-09 中国石油大学(华东) Multiphase transportation pipeline device and hydrate generation, the analogy method for blocking and melting
CN110658329A (en) * 2019-11-15 2020-01-07 中国华能集团有限公司 Device for simulating generation of gas hydrate in laboratory
CN111650354B (en) * 2020-06-28 2023-11-03 中国华能集团有限公司 Hydrate evaluation experiment system and method

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103645285A (en) * 2013-12-17 2014-03-19 中国海洋石油总公司 Visualized natural gas hydrate simulation test device and method
US9598936B1 (en) * 2015-10-12 2017-03-21 China University Of Petroleum (East China) Apparatus and method for monitoring hydrate decomposition area under different drilling and production processes
CN105699247A (en) * 2016-03-04 2016-06-22 西南石油大学 Experimental method for synthesizing and decomposing natural gas hydrate and experiment system
CN105717271A (en) * 2016-03-11 2016-06-29 西南石油大学 Marine gas hydrate solid-state fluidization production experimental loop system
CN205538950U (en) * 2016-03-11 2016-08-31 西南石油大学 Solid -state fluidization exploitation experiment loop system of ocean gas hydrate
CN106010698A (en) * 2016-05-06 2016-10-12 西南石油大学 Rapid synthesis device for natural gas hydrate
US20200096452A1 (en) * 2018-09-21 2020-03-26 Dalian University Of Technology Fully visual flow loop system for studying hydrate blockage
CN209173895U (en) * 2018-10-23 2019-07-30 山西晋城无烟煤矿业集团有限责任公司 A kind of methane hydrate synthesizer
CN109557253A (en) * 2018-11-02 2019-04-02 广州海洋地质调查局 A kind of comprehensive hydrate simulation system and its experimental method
CN109401801A (en) * 2018-11-16 2019-03-01 西南石油大学 Gas hydrates compound experiment circuit system under a kind of pressure oscillation
CN110066696A (en) * 2019-06-05 2019-07-30 国家地质实验测试中心 Gas hydrates insitu analog and pressing mold molding integral system and method
CN110389126A (en) * 2019-06-27 2019-10-29 青岛海洋科学与技术国家实验室发展中心 Hydrate, which generates, decomposes visualization reaction system and memory effect evaluation method
CN110586013A (en) * 2019-10-15 2019-12-20 中国地质大学（北京） Carbon dioxide hydrate visualization experiment device and experiment method thereof
CN110761749A (en) * 2019-11-19 2020-02-07 中国华能集团有限公司 Simulation experiment system and experiment method for synthesis and exploitation of natural gas hydrate
CN110865153A (en) * 2019-12-02 2020-03-06 东北石油大学 Hydrate multiphase flow loop experiment device and experiment method
CN212622573U (en) * 2020-06-28 2021-02-26 中国华能集团有限公司 Hydrate evaluation experiment system

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
NENG-YOU WU: "Experimental simulations and methods for natural gas hydrate analysis in China", CHINA GEOLOGY, pages 61 - 71 *
向军;韩兵奇;张军;: "天然气水合物一维模拟试验装置研究", 石油矿场机械, no. 02 *
杨明军;宋永臣;刘瑜;: "水合物模拟实验装置的对比研究", 天然气化工(C1化学与化工), no. 05 *
涂运中;蒋国盛;张凌;宁伏龙;窦斌;吴翔;: "SDS和THF对甲烷水合物合成影响的实验研究", 现代地质, no. 03 *
王丽: "天然气水合物实验装置", 石油仪器, no. 04, pages 47 - 48 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022000891A1 (en) * 2020-06-28 2022-01-06 中国华能集团有限公司 Hydrate evaluation experiment system and method
CN112108096A (en) * 2020-10-26 2020-12-22 河南理工大学 Natural gas hydrate synthesis device and method integrating multiple strengthening methods
CN112461837A (en) * 2020-11-05 2021-03-09 东北石油大学 Hydrate synthesis and decomposition visual experimental device
CN112557624A (en) * 2020-12-24 2021-03-26 广州海洋地质调查局 Natural gas hydrate inverse phase transition formation evolution law experimental method and device

Also Published As

Publication number Publication date
CN111650354B (en) 2023-11-03
WO2022000891A1 (en) 2022-01-06

Similar Documents

Publication Publication Date Title
CN111650354A (en) Hydrate evaluation experiment system and method
CN110887776B (en) Device and method for measuring horizontal/vertical permeability of hydrate-containing reservoir
CN110761749B (en) Natural gas hydrate synthesis and exploitation simulation experiment system and experiment method
EP2596346B1 (en) Automated analysis of pressurized reservoir fluids
CN110879271A (en) CO under simulated formation condition2Experimental device and method for water-rock reaction
CN105651648A (en) Replacement and absorption-desorption simulation test system and method
CN108072751B (en) Fracturing fluid and reservoir interaction simulation experiment system and experiment method
CN205483902U (en) Analytic simulating measurement setup of replacement and absorption
CN113338874B (en) CO (carbon monoxide) 2 Alternately injecting inhibitor to produce methane and store CO 2 Simulation device and method
CN107930537A (en) A kind of simulated sea bottom methane leakage causes the reaction unit and method of early diagenesis
CN104634770A (en) Gas online quantitative mixed supercharging system for Raman spectrometer and operation method thereof
CN113218843A (en) Multifunctional triaxial experiment system and method for acoustoelectric osmosis and the like
CN107746735A (en) A kind of mixed gas supply system that experimental provision is prepared for hydrate
US10866165B2 (en) System for automatic sampling and detection of on-line gas by high-temperature and high-pressure simulator and detection method thereof
CN111239361A (en) Accurate measurement device for hydrate generation induction time and application thereof
CN212622573U (en) Hydrate evaluation experiment system
CN116735835A (en) Compact sandstone condensate gas reservoir failure development simulation device and method
CN107976529B (en) Multifunctional reaction kettle experiment system and experiment method
CN111650352A (en) Multifunctional hydrate synthesis and decomposition simulation experiment system and experiment method
CN116591647A (en) Novel CO 2 Displacement and throughput system and method
CN108318100B (en) System and method for measuring volume of gas released by decomposing liquid nitrogen frozen hydrate sample
CN212301544U (en) Multifunctional hydrate synthesis and decomposition simulation experiment system
CN210919000U (en) Natural gas hydrate synthesis and exploitation simulation experiment system
CN212321603U (en) Gas separation experimental system adopting hydrate method
CN115468824A (en) Device and method for preparing gas hydrate and detecting physical property parameters of gas hydrate in situ

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant