CN105974070B - A kind of underground water influences analogue means and method to coal bed gas - Google Patents
A kind of underground water influences analogue means and method to coal bed gas Download PDFInfo
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Abstract
Influenceing analogue means and method, described device to coal bed gas the invention discloses a kind of underground water includes sample bin and high pressure gas bottle；The sample bin is mainly made up of pressurized tank, and the pressurized tank is integrally cylindrical, is separably combined into by two semicolumns；The pressurized tank is provided with pressure gauge and moisture trap；The pressurized tank is connected with high pressure gas bottle.Apparatus of the present invention and method are easy and effective, applicable large volume coal sample, and without broken.Also accommodate under condition of different temperatures, investigate the influence that different pressures, water quality, ature of coal, coal-water ratio store to coal bed gas.
Description
Technical field
The present invention relates to a kind of experimental provision and method to coal bed gas, and in particular to a kind of underground water influences on coal bed gas
Analogue means and method.
Background technology
Coal bed gas is mainly that adsorbed state is stored in the double porosity media of coal.In coal bed gas stores migration research, underground
Storage of the water on coal bed gas influences the emphasis that research is always coal bed gas storage research.
Chinese patent grant number is CN100487755C, and it discloses a kind of analogue device for coal layer pneumatolytic deposit, simulation dress
Put and be made up of gas boosting pump, constant temperature cabinet, control system and computer processing system.
Application publication number is CN1 01799466A, and it discloses a kind of coal bed gas and produces physical simulating device and simulation side
Method, the analogue means include sample bin, water bath with thermostatic control system, gas water metering system and pressure monitor system, sample bin and passed through
Gas water configuration production flow line is interconnected to form simulation system, and water bath with thermostatic control system is set around simulation system, simulation system
Sample bin access confined pressure simulation pipeline, the gas water configuration of sample bin end, which produces, sets pressure monitor system on pipeline, simulation system
The connection simulation well head united on the gas water configuration production pipeline of end, simulation well head connection gas water metering system.
Above analogue means structure is complex, can not meet the simulation of bulk coal sample, control temperature is up to 100 DEG C of
In addition it can not confirm that different solid compares the influence of coal bed gas storage.
The content of the invention
In view of the shortcomings of the prior art, the present invention is intended to provide a kind of underground water influences analogue means and side to coal bed gas
Method, apparatus structure is simple, applicable large volume coal sample, and without broken.Also accommodating different temperatures, (maximum temperature is up to 400
DEG C) under the conditions of, investigate the influence that different pressures, water quality, ature of coal, coal-water ratio store to coal bed gas.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of underground water influences analogue means, including sample bin and high pressure gas bottle on coal bed gas；The sample bin is main
It is made up of pressurized tank, the pressurized tank is integrally cylindrical, is separably combined into by two semicolumns；On the pressurized tank
Provided with pressure gauge and moisture trap；The pressurized tank is connected with high pressure gas bottle.
It should be noted that it is additionally provided with safety valve on the pressurized tank.What the safety valve can be used with adherence pressure tank
Security.
It should be noted that the high pressure gas bottle is communicated with pressure-reducing valve, the pressurized tank is provided with air inlet connection valve, institute
Pressure-reducing valve is stated with the air inlet connection valve to be connected.
It should be noted that two semicolumns are combined by screw, and the joint of two semicolumns is provided with sealing gasket.
Arbitrarily it can be opened or combined with reference to two semicolumns by screw, the setting of sealing gasket then causes two semicolumns to combine
There is higher sealing property afterwards.
It should be noted that the outer surface of the pressurized tank is wound with load coil, the load coil master
To be made up of induction coil and thermostat, the induction coil is electrically connected at the thermostat.By setting sensing heating line
Circle, can also be controlled to the temperature of pressurized tank, so as to influence of the realization temperature to coal bed gas.
The application method that above-mentioned underground water influences analogue means on coal bed gas comprises the following steps：
S1 determine then to set as influence factor to be studied in pressure, coal-water ratio, water quality and ature of coal other three because
The fixation value of element, and set the different values of several influence factors to be studied；
S2 proceeds as follows to each value of influence factor to be studied；
Two semicolumns of the pressurized tank are separated, coal sample and water are put into by the coal-water ratio of setting, water quality and ature of coal are equal
Need the requirement for meeting setting；Pressurized tank is closed, the induction coil of load coil is wrapped in the pressurized tank surface；
Pressure-reducing valve and air inlet connection valve are opened, gas is discharged to pressurized tank by certain flow rate by high pressure gas bottle, passed through
Pressure gauge investigates the pressure of pressurized tank, until reaching the pressure value of setting；Pressurized tank is heated by the induction coil,
And be controlled by operation of the thermostat to induction coil, until pressurized tank to be heated to the temperature of setting；
Pressure-reducing valve is closed when reaching and needing pressure, a small amount of gas is then released from pressurized tank and by the air water point
It is acquired from device, sample analysis is carried out to gaseous sample therein and water sample, determines gas componant and concentration in pressurized tank；
After S3 carries out step S2 operation to all setting values of influence factor to be studied, under different setting values
Gas componant and concentration in the pressurized tank of gained are contrasted, you can know influence of the factor to coal bed gas.
The beneficial effects of the present invention are：
1st, the present invention can be achieved with investigating different pressures, water quality, ature of coal, coal-water ratio by simple and effective apparatus and method
Influence to coal bed gas storage, and applicable large volume coal sample, and without broken.
2nd, it is suitable under condition of different temperatures, investigates the shadow that different pressures, water quality, ature of coal, coal-water ratio store to coal bed gas
Ring.
Brief description of the drawings
Fig. 1 is the general structure schematic diagram of apparatus of the present invention.
Embodiment
Below with reference to accompanying drawing, the invention will be further described, it is necessary to which explanation, the present embodiment is with this technology side
Premised on case, detailed embodiment and specific operating process are given, but protection scope of the present invention is not limited to this reality
Apply example.
As shown in figure 1, a kind of underground water influences analogue means, including sample bin and high pressure gas bottle 2 on coal bed gas；It is described
Sample bin is mainly made up of pressurized tank 1, and the pressurized tank 1 is overall cylindrical, is separably tied by two semicolumns 11 and 12
Conjunction forms；The pressurized tank 1 is provided with pressure gauge 3 and moisture trap 4；The pressurized tank 1 is connected with high pressure gas bottle 2.
As a kind of preferred scheme, safety valve 5 is additionally provided with the pressurized tank 1.
As a kind of preferred scheme, 2 bottles of the high pressure gas is communicated with pressure-reducing valve 6, and the pressurized tank 1 connects provided with air inlet
Valve 7 is connect, the pressure-reducing valve 6 is connected with the air inlet connection valve 7.
As a kind of preferred scheme, two semicolumns 11 and 12 are combined by screw, and the joint of two semicolumns
Provided with sealing gasket 8.
It should be noted that the outer surface of the pressurized tank is wound with load coil, the load coil master
To be made up of induction coil 9 and thermostat, the induction coil is electrically connected at the thermostat.
The application method that above-mentioned underground water influences analogue means on coal bed gas comprises the following steps：
S1 determine then to set as influence factor to be studied in pressure, coal-water ratio, water quality and ature of coal other three because
The fixation value of element, and set the different values of several influence factors to be studied；
S2 proceeds as follows to each value of influence factor to be studied；
Two semicolumns of the pressurized tank are separated, coal sample and water are put into by the coal-water ratio of setting, water quality and ature of coal are equal
Need the requirement for meeting setting；Pressurized tank is closed, the induction coil of load coil is wrapped in the pressurized tank surface；
Pressure-reducing valve and air inlet connection valve are opened, gas is discharged to pressurized tank by certain flow rate by high pressure gas bottle, passed through
Pressure gauge investigates the pressure of pressurized tank, until reaching the pressure value of setting；Pressurized tank is heated by the induction coil,
And be controlled by operation of the thermostat to induction coil, until pressurized tank to be heated to the temperature of setting；
Pressure-reducing valve is closed when reaching and needing pressure, a small amount of gas is then released from pressurized tank and by the air water point
It is acquired from device, sample analysis is carried out to gaseous sample therein and water sample, determines gas componant and concentration in pressurized tank；
After S3 carries out step S2 operation to all setting values of influence factor to be studied, under different setting values
Gas componant and concentration in the pressurized tank of gained are contrasted, you can know influence of the factor to coal bed gas.
Embodiment one
S1 determines influence of the research pressure to coal bed gas, then set coal water quality ratio, water quality and ature of coal be respectively 20: 1,
Total salinity 0.5g/L, lignite, and the different values of pressure are set as 1MPa, 5MPa, 10MPa, 15MPa.
S2 proceeds as follows to each value of pressure；
Two semicolumns of the pressurized tank are separated, coal sample and water are put into the ratio 20: 1 of setting, the water of its reclaimed water
Matter needs the condition for meeting total salinity 0.5g/L, closes pressurized tank；And the induction coil of load coil is wrapped in pressure
Tank surface；
Pressure-reducing valve and air inlet connection valve are opened, gas is discharged to pressurized tank by certain flow rate by high pressure gas bottle, passed through
Pressure gauge investigates the pressure of pressurized tank, until reaching the pressure value (1MPa, 5MPa, 10MPa, 15MPa) of setting；Pass through the sense
Answer coil to heat pressurized tank, and be controlled by operation of the thermostat to induction coil, until pressurized tank is heated to
The temperature (setting as needed) of setting；
Pressure-reducing valve is closed when reaching and needing pressure, a small amount of gas is then released from pressurized tank and by the air water point
It is acquired from device, sample analysis is carried out to gaseous sample therein and water sample, determines gas componant and concentration in pressurized tank；
After S3 carries out step S2 operation to all setting values of pressure, to different setting value (1MPa, 5MPa,
10MPa, 15MPa) under gained pressurized tank in gas componant and concentration contrasted, you can know shadow of the pressure to coal bed gas
Ring.
Embodiment two
S1 determines that Study on Coal water quality compares the influence of coal bed gas, then set pressure, water quality and ature of coal be respectively 1MPa,
Total salinity 0.5g/L, lignite, and set coal water quality than different values as 20: 1,10: 1,5: 1,1: 1,1: 10,1: 20；
S2 to coal water quality than each value proceed as follows；
Two semicolumns of the pressurized tank are separated, by coal sample and water in the ratio (20: 1,10: 1,5: 1,1: 1,1 set
: 10,1: 20) be put into, the water quality of its reclaimed water needs the condition for meeting total salinity 0.5g/L, closes pressurized tank；And sensing heating
The induction coil of coil is wrapped in pressurized tank surface；
Pressure-reducing valve and air inlet connection valve are opened, gas is discharged to pressurized tank by certain flow rate by high pressure gas bottle, passed through
Pressure gauge investigates the pressure of pressurized tank, until reaching the pressure value 1MPa of setting；Pressurized tank is carried out by the induction coil
Heating, and be controlled by operation of the thermostat to induction coil, until pressurized tank is heated into the temperature of setting (as needed
Setting)；
Pressure-reducing valve is closed when reaching and needing pressure, a small amount of gas is then released from pressurized tank and by the air water point
It is acquired from device, sample analysis is carried out to gaseous sample therein and water sample, determines gas componant and concentration in pressurized tank；
S3 to coal water quality than all setting values carry out step S2 operation after, to different setting values (20: 1,10
: 1,5: 1,1: 1,1: 10,1: gas componant and concentration under 20) in the pressurized tank of gained are contrasted, you can know coal water quality
Amount compares the influence of coal bed gas.
Embodiment three
S1 determines influence of the research water quality to coal bed gas, then set pressure, coal water quality ratio and ature of coal be respectively 1MPa,
20: 1, lignite, and the different values of water quality are set as total salinity 0.5g/L, total salinity 2g/L, total salinity 8g/L, Zong Kuang
Change degree 25g/L, total salinity 60g/L；
S2 proceeds as follows to each value of water quality；
Two semicolumns of the pressurized tank are separated, coal sample and water are put into the ratio 20: 1 of setting, the water of its reclaimed water
Matter value meets that the condition of setting is (total salinity 0.5g/L, total salinity 2g/L, total salinity 8g/L, total salinity 25g/L, total
Salinity 60g/L), close pressurized tank；And the induction coil of load coil is wrapped in pressurized tank surface；
Pressure-reducing valve and air inlet connection valve are opened, gas is discharged to pressurized tank by certain flow rate by high pressure gas bottle, passed through
Pressure gauge investigates the pressure of pressurized tank, until reaching the pressure value 1MPa of setting；Pressurized tank is carried out by the induction coil
Heating, and be controlled by operation of the thermostat to induction coil, until pressurized tank is heated into the temperature of setting (as needed
Setting)；
Pressure-reducing valve is closed when reaching and needing pressure, a small amount of gas is then released from pressurized tank and by the air water point
It is acquired from device, sample analysis is carried out to gaseous sample therein and water sample, determines gas componant and concentration in pressurized tank；
After S3 carries out step S2 operation to all setting values of water quality, to different setting value (total salinity 0.5g/
L, total salinity 2g/L, total salinity 8g/L, total salinity 25g/L, total salinity 60g/L) under gained pressurized tank in gas
Body composition and concentration are contrasted, you can know influence of the water quality to coal bed gas.
Example IV
S1 determines the influence of Study on Coal confrontation coal bed gas, then set pressure, coal water quality ratio and water quality be respectively 1MPa,
20: 1, total salinity 0.5g/L, and set ature of coal and be taken as lignite, bituminous coal, anthracite respectively；
S2 proceeds as follows to every kind of ature of coal；
Two semicolumns of the pressurized tank are separated, coal sample and water are put into the ratio 20: 1 of setting, wherein ature of coal expires
Sufficient preparatory condition (lignite, bituminous coal, anthracite), water quality value meets total salinity 0.5g/L, closes pressurized tank；And sensing heating line
The induction coil of circle is wrapped in pressurized tank surface；
Pressure-reducing valve and air inlet connection valve are opened, gas is discharged to pressurized tank by certain flow rate by high pressure gas bottle, passed through
Pressure gauge investigates the pressure of pressurized tank, until reaching the pressure value 1MPa of setting；Pressurized tank is carried out by the induction coil
Heating, and be controlled by operation of the thermostat to induction coil, until pressurized tank is heated into the temperature of setting (as needed
Setting)；
Pressure-reducing valve is closed when reaching and needing pressure, a small amount of gas is then released from pressurized tank and by the air water point
It is acquired from device, sample analysis is carried out to gaseous sample therein and water sample, determines gas componant and concentration in pressurized tank；
After S3 carries out step S2 operation to the ature of coal of all kinds, to different atures of coal (lignite, bituminous coal, anthracite)
Gas componant and concentration in the pressurized tank of lower gained are contrasted, you can know influence of the ature of coal to coal bed gas.
In embodiment one to four, a level is maintained at using three factors of control, investigates the 4th factor difference water
The flat influence to coal bed gas storage, so as to simulate the shadow that different pressures, water quality, ature of coal, coal water quality compare coal bed gas storage
Ring.
For those skilled in the art, technical scheme that can be more than and design, make various corresponding
Change and deform, and all these change and deformation should be construed as being included within the protection domain of the claims in the present invention.
Claims (1)
1. a kind of underground water influences the application method of analogue means on coal bed gas, it is characterised in that
The underground water influences analogue means, including sample bin and high pressure gas bottle on coal bed gas；The sample bin is mainly by pressing
Power tank forms, and the pressurized tank is integrally cylindrical, is separably combined into by two semicolumns；The pressurized tank is provided with
Pressure gauge and moisture trap；The pressurized tank is connected with high pressure gas bottle；The high pressure gas bottle is communicated with pressure-reducing valve, institute
State pressurized tank and be provided with air inlet connection valve, the pressure-reducing valve is connected with the air inlet connection valve；The outer surface of the pressurized tank
Load coil is wound with, the load coil is mainly made up of induction coil and thermostat, the induction coil electricity
Property is connected to the thermostat；
The application method comprises the following steps：
S1 determines then to set other three factors as influence factor to be studied in pressure, coal-water ratio, water quality and ature of coal
Fixed value, and set the different values of several influence factors to be studied；
S2 proceeds as follows to each value of influence factor to be studied；
Two semicolumns of the pressurized tank are separated, coal sample and water are put into by the coal-water ratio of setting, water quality and ature of coal are required to
Meet the requirement of setting；Pressurized tank is closed, the induction coil of load coil is wrapped in the pressurized tank surface；
Pressure-reducing valve and air inlet connection valve are opened, gas is discharged to pressurized tank by certain flow rate by high pressure gas bottle, passes through pressure
Table investigates the pressure of pressurized tank, until reaching the pressure value of setting；Pressurized tank is heated by the induction coil, and by
Operation of the thermostat to induction coil is controlled, until pressurized tank to be heated to the temperature of setting；
Pressure-reducing valve is closed when reaching and needing pressure, a small amount of gas is then released from pressurized tank and by the moisture trap
It is acquired, sample analysis is carried out to gaseous sample therein and water sample, determines gas componant and concentration in pressurized tank；
After S3 carries out step S2 operation to all setting values of influence factor to be studied, to gained under different setting values
Pressurized tank in gas componant and concentration contrasted, you can know influence of the factor to coal bed gas.
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