CN202442934U - Coal/shale adsorption capacity determinator - Google Patents
Coal/shale adsorption capacity determinator Download PDFInfo
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- CN202442934U CN202442934U CN201220077536XU CN201220077536U CN202442934U CN 202442934 U CN202442934 U CN 202442934U CN 201220077536X U CN201220077536X U CN 201220077536XU CN 201220077536 U CN201220077536 U CN 201220077536U CN 202442934 U CN202442934 U CN 202442934U
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Abstract
The utility model relates to a coal/shale adsorption capacity determinator which comprises an adsorption cylinder and a reference cylinder, wherein the bottoms of the two cylinders are respectively fixed on the top surface and the bottom surface of a cylindrical steel block, the adsorption cylinder and the reference cylinder are communicated by a communicating pipe penetrating through the bottoms of the two cylinder and the cylindrical steel block, and a first control valve is arranged on the communicating pipe; heating bushes are arranged on the outer side walls of the adsorption cylinder, the reference cylinder and the cylindrical steel block, and insulating jackets are arranged at the outer sides of the heating bushes; the combined members above are placed in a vacuum insulating tank; the adsorption cylinder is internally provided with a sample suspension basket containing test samples; the adsorption cylinder is provided with an air outlet pipe and a first pressure sensor; and the reference cylinder is provided with an air inlet pipe and a second pressure sensor, the air inlet pipe is connected with one end of a gas booster pump, and the other end of the gas booster pump is communicated with experimental gas and helium gas through a second control valve and a third control valve which are connected in parallel. The device can simulate the process that coal/shale adsorbs natural gas under practical geological conditions, and evaluate the adsorption capacity of the coal/shale.
Description
Technical field
The utility model is to be used for the experimental facilities that oil, geology, laboratory, mining industry field are measured coal/shale adsorptive power simulation and adsorbance under actual geologic condition about a kind of, relates in particular to a kind of adjustable high-temperature high pressure coal/shale isothermal adsorbance determinator.
Background technology
Rock gas is mainly composed with the form of free state in sandstone and is deposited in the conventional gas reservoir; And main the tax with the mode of ADSORPTION STATE and free state deposited in coal/shale; Therefore, the adsorptive power of confirming coal petrography/shale is that the resource evaluation and the prediction of favourable district of coal-seam gas and shale gas provides important parameters.The method of measuring coal petrography/shale adsorbed methane ability at present can be divided into gravimetric method, volumetric method and chromatography.The early stage use of gravimetric method is more, but can't realize the mensuration of higher pressure force adsorbance.Chromatography can be used for measuring the absorption of multicomponent gas, but can't obtain than accurate data.Volumetric method is used the most extensive, but the mensuration temperature and pressure of present existing apparatus does not all meet the temperature, pressure environment of actual formation, can't reflect the real adsorptive power of coal petrography/shale.
Thus, the inventor relies on experience and the practice of being engaged in relevant industries for many years, proposes a kind of coal/shale adsorbance determinator, to overcome the defective of prior art.
The utility model content
The purpose of the utility model is to provide a kind of coal/shale adsorbance determinator, can simulate the absorbed natural gas process of coal/shale under the actual geologic condition (especially deep layer) and the ability of its absorption is estimated.
Another purpose of the utility model is to provide a kind of coal/shale adsorbance determinator, can carry out temperature programme in the experimentation, and temperature-rise period is controlled; The temperature conduction and the distribution of good equilibrium can be provided; Can control the equilibrium adsorption time; In conjunction with the purpose of experiment, can carry out the program supercharging to the pressure of experiment, the process of boosting is controlled.
The purpose of the utility model is to realize like this; A kind of coal/shale adsorbance determinator; Said adsorbance determinator comprises adsorbing cylinder that diameter is identical and with reference to cylinder; Said adsorbing cylinder opening upwards, Open Side Down is provided with reference to cylinder, adsorbing cylinder and be fixedly installed on the end face and the bottom surface of a cylindrical bloom, the diameter of said cylindrical bloom and adsorbing cylinder and identical with reference to the diameter of cylinder respectively with reference to the cylinder bottom of cylinder; Said adsorbing cylinder and with reference to cylinder by a communicating pipe conducting that penetrates two cylinder bottoms and cylindrical bloom, said communicating pipe is provided with first by-pass valve control; The opening sealing of said adsorbing cylinder is provided with the absorption cylinder cap; Opening sealing with reference to cylinder is provided with reference to cylinder cap; Said adsorbing cylinder, be provided with heating jacket with reference to the lateral wall of cylinder and cylindrical bloom, the heating jacket outside is provided with muff; In conjunction with after above-mentioned member be placed in the vacuum heat-preserving jar, opening part sealing in this vacuum heat-preserving tank top is provided with vacuum cover, said vacuum cover is pressed on adsorbing cylinder and covers; Be provided with in the said adsorbing cylinder one specimen is housed the sample hanging basket; Said adsorbing cylinder is provided with the gas outlet and first pressure transducer; Saidly be provided with the draft tube and second pressure transducer with reference to cylinder, said draft tube is connected in a gas boosting pump one end, and the gas boosting pump other end is communicated with experimental gas and helium through second by-pass valve control and the 3rd by-pass valve control of parallel connection.
In a preferred embodiments of the utility model, in the sample hanging basket in the said adsorbing cylinder and with reference in the cylinder through putting into the spatial volume size that solid little steel ball varying number, that volume is identical changes two cylinders.
In a preferred embodiments of the utility model, the high pressure-charging 70MPa of said gas boosting pump, gas boosting pump rate of pressurization and big or small experimental specific requirement are by program setting.
In a preferred embodiments of the utility model, an end of said gas boosting pump passes through the 4th by-pass valve control and is connected with reference to the cylinder draft tube.
In a preferred embodiments of the utility model, said with reference to the cylinder draft tube be provided with one the venting branch road, the venting branch road be provided with the venting valve.
In a preferred embodiments of the utility model, be provided with drain tap in the gas outlet of said adsorbing cylinder.
In a preferred embodiments of the utility model, said heating jacket is twined by electrical heating wire and constitutes, and the electrical heating wire outside is provided with insulation course, and the insulation course outside has steel material to surround; Said heating jacket connects the temperature controller of its heating of control.
In a preferred embodiments of the utility model, said sample hanging basket is that steel is cylindric, and its top is provided with swivelling cover, is respectively equipped with a pore on the bottom of sample hanging basket and the swivelling cover, and pore is provided with screen pack; Said laboratory sample is that coal/shale particle or diameter are the 25mm-38mm rock core.
In a preferred embodiments of the utility model, said first pressure transducer and second pressure transducer are digital high temperature high voltage resistant force transducer, and maximum temperature is 200 ℃, and top pressure is 70MPa.
In a preferred embodiments of the utility model, said first by-pass valve control is a machinery valve, and said second by-pass valve control, the 3rd by-pass valve control, the 4th by-pass valve control and venting valve and drain tap are programme controlled pneumatic valve.
From the above mentioned, the coal of the utility model/shale adsorbance determinator can carry out temperature programme in experimentation, temperature-rise period is controlled; Can simulate the absorbed natural gas process of coal/shale under the actual geologic condition (especially deep layer) and the ability of its absorption is estimated; Can character per sample select rock core or diffusing appearance to experimentize, amount be regulated the size with reference to cylinder and adsorbing cylinder volume per sample; The temperature conduction and the distribution of good equilibrium can be provided; In conjunction with the purpose of experiment, can carry out stratographic analysis to experiment adsorbing cylinder gas, realize the quantitative measurement of multicomponent gas adsorbance.
Description of drawings
Following accompanying drawing only is intended to the utility model is done schematic illustration and explanation, does not limit the scope of the utility model.Wherein:
Fig. 1: be the structural representation of the utility model coal/shale adsorbance determinator.
Fig. 2: be the result of the utility model measuring coal adsorbance.
Embodiment
Understand for technical characterictic, purpose and effect to the utility model have more clearly, contrast the embodiment of description of drawings the utility model at present.
As shown in Figure 1; The utility model provides a kind of coal/shale adsorbance determinator 100; Said adsorbance determinator 100 comprises the identical adsorbing cylinder of diameter 1 and with reference to cylinder 2; Said adsorbing cylinder 1 opening upwards, Open Side Down is provided with reference to cylinder 2, adsorbing cylinder 1 and be fixedly installed on the end face and the bottom surface of a cylindrical bloom 3, the diameter of said cylindrical bloom 3 and adsorbing cylinder 1 and identical with reference to the diameter of cylinder 2 respectively with reference to the cylinder bottom of cylinder 2; Said adsorbing cylinder 1 and with reference to cylinder 2 by communicating pipes 31 conducting that penetrates two cylinder bottoms and cylindrical bloom 3, said communicating pipe 31 is provided with first by-pass valve control 41; The opening sealing of said adsorbing cylinder 1 is provided with absorption cylinder cap 11; Opening sealing with reference to cylinder 2 is provided with reference to cylinder cap 21; In this embodiment, adsorbing cylinder 1 and be 100ml with reference to the capacity of cylinder 2, two cylinders all can bear the pressure of 70MPa and 200 ℃ temperature; Said adsorbing cylinder 1, be provided with heating jacket 5 with reference to the lateral wall of cylinder 2 and cylindrical bloom 3, said heating jacket 5 connects the temperature controller 51 of its heating of control; Conduct heat through cylindrical bloom 3 with reference to cylinder 2 and adsorbing cylinder 1; Heating jacket 5 outsides are provided with muff 6; In conjunction with after above-mentioned member be placed in the vacuum heat-preserving jar 7, the sealing of this vacuum heat-preserving jar 7 top open parts is provided with vacuum cover 71, said vacuum cover 71 is pressed on the absorption cylinder cap 11; Said muff 6 and vacuum heat-preserving jar 7 have constituted the double-layer heat insulation system of this device; Be provided with in the said adsorbing cylinder 1 one specimen is housed sample hanging basket 8, specimen can be positioned in the adsorbing cylinder 1 through hanging basket 8; Said laboratory sample is that coal/shale particle or diameter are the 25mm-38mm rock core; Said adsorbing cylinder 1 is provided with gas outlet 12 and first pressure transducer, 13, the first pressure transducers 13 in order to detect the pressure of adsorbing cylinder 1; Saidly be provided with the draft tube 22 and second pressure transducer 23 with reference to cylinder 2; Second pressure transducer 23 is in order to detect the pressure with reference to cylinder 2; Said draft tube 22 is connected in a gas boosting pump 9 one ends, and gas boosting pump 9 other ends are communicated in experimental gas and helium gas source through second by-pass valve control 42 and the 3rd by-pass valve control 43 of parallel connection.As shown in Figure 1, in this embodiment, an end of said gas boosting pump 9 is connected with draft tube 22 with reference to cylinder 2 through the 4th by-pass valve control 44.Said with reference to cylinder 2 draft tube 22 be provided with one the venting branch road 221, the venting branch road 221 be provided with the venting valve 45.Be provided with drain tap 46 in the gas outlet 12 of said adsorbing cylinder 1.
Open coal/shale rock core that said vacuum cover 71 will have been weighed during experiment; Perhaps coal/shale is broken to and puts into adsorbing cylinder 1 again after putting into sample hanging basket 8 after 80～120 orders are weighed; In this embodiment, in the sample hanging basket 8 in the said adsorbing cylinder 1 and with reference to can be in the cylinder 2 through putting into the spatial volume size that solid little steel ball varying number, that volume is identical changes two cylinders.When sample hanging basket 8 is not full of by sample, put into the steel ball that some volumes are 7.6ml and carry out filling, full until the sample hanging basket; Close first by-pass valve control 41, second by-pass valve control 42, the 3rd by-pass valve control 43, the 4th by-pass valve control 44 and venting valve 45 and drain tap 46; Through regulating temperature controller 51 setting devices, make range of temperature be no more than ± stablize 12 hours after 1 ℃ to experimental temperature.After this unit temp is stable, opens second by-pass valve control 42 and the 4th by-pass valve control 44 and after injecting helium with reference to cylinder 2, reaching preset pressure, close second by-pass valve control 42 and the 4th by-pass valve control 44, write down the data of second pressure transducer 23; Then; Open first by-pass valve control 41; To adsorbing cylinder 1 inflation, after first pressure transducer 13 reaches certain numerical value, close first by-pass valve control 41; The numerical value that record first pressure transducer 13 this moment and second pressure transducer 23 show calculates the free space volumes in the adsorbing cylinder 1 with this according to the equation of gas state.Repeat the test and the calculating of four free space volumes in the adsorbing cylinder, the results change between making it is less than 0.2ml.After free space volumes tests; Open venting valve 45 respectively and carry out emptying, close first by-pass valve control 41, second by-pass valve control 42, the 3rd by-pass valve control 43, the 4th by-pass valve control 44 and venting valve 45 and drain tap 46 then with 46 pairs of helium of drain tap.Open the 3rd by-pass valve control 43 and the 4th by-pass valve control 44 and carry out supercharging, close the 4th by-pass valve control 44, write down the numerical value that second pressure transducer 23 shows through 9 pairs of experimental gas of high-pressure booster; Open first by-pass valve control 41, adsorbing cylinder 1 is charged into experimental gas, the numeral of treating first pressure transducer 13 is closed first by-pass valve control 41 after showing 1.2 times to preset experimental pressure; Treat that sample carried out equilibrium adsorption after 24 hours; Write down the numerical value of first pressure transducer 13, calculate sample adsorbance under this pressure according to the equation of gas state, reciprocal with this; Constantly increase experimental pressure, just can record coal/shale isothermal adsorption curve (as shown in Figure 2); According to actual geology condition setting temperature and pressure, that can simulate sample under this condition composes the amount of natural gas of depositing with adsorbed state; In addition, open drain tap 46 and utilize high pressure sampler from adsorbing cylinder 1, to gather gas appearance,, can realize the quantitative measurement of multicomponent gas adsorbance through the chromatograph analysis.
From the above mentioned, the coal of the utility model/shale adsorbance determinator can carry out temperature programme in experimentation, temperature-rise period is controlled; Can simulate the absorbed natural gas process of coal/shale under the actual geologic condition (especially deep layer) and the ability of its absorption is estimated; Can character per sample select rock core or diffusing appearance to experimentize, amount be regulated the size with reference to cylinder and adsorbing cylinder volume per sample; The temperature conduction and the distribution of good equilibrium can be provided; In conjunction with the purpose of experiment, can carry out stratographic analysis to experiment adsorbing cylinder gas, realize the quantitative measurement of multicomponent gas adsorbance.
In this embodiment, said gas boosting pump 9 high pressure-charging 70MPa, gas boosting pump 9 rates of pressurization and big or small experimental specific requirement are by program setting.
Said heating jacket 5 is twined by electrical heating wire and constitutes, and the electrical heating wire outside is provided with insulation course, and the insulation course outside has steel material to surround;
Further, in this embodiment, as shown in Figure 1; Said sample hanging basket 8 is that steel is cylindric, and its top is provided with swivelling cover 81, is respectively equipped with a pore on the bottom of sample hanging basket 8 and the swivelling cover 81; Pore is provided with screen pack, prevents that powdered sample from being gone out blocking pipeline by gases at high pressure;
In this embodiment, said first pressure transducer 13 and second pressure transducer 23 are digital high temperature high voltage resistant force transducer, and maximum temperature is 200 ℃, and top pressure is 70MPa.
Further, in this embodiment, said first by-pass valve control 41 is a machinery valve, and said second by-pass valve control 42, the 3rd by-pass valve control 43, the 4th by-pass valve control 44 and venting valve 45 and drain tap 46 are programme controlled pneumatic valve.
The coal of the utility model/shale adsorbance determinator after the heating jacket heating, carries out double-layer heat insulation by muff and vacuum heat-preserving jar to adsorbing cylinder with reference to cylinder, and temperature retention time is long, and is effective, and carries out thermostatic control through temperature sensor.After reaching experimental temperature, the gas boosting pump reaches certain pressure to reference to injection experiments gas in the cylinder according to requirement of experiment; Treat that tensimeter is stable, open first by-pass valve control 41 (compensation flap) to the adsorbing cylinder gas injection, equilibrium adsorption a period of time; Record pressure calculates and tries to achieve adsorbance.So circulation experiment can be simulated the adsorption process and its adsorptive power of evaluation of coal/shale under the different pressures temperature conditions.
The beneficial effect of the utility model is:
1) can bear the pressure of 70MPa and 200 ℃ temperature, simulate the mensuration of the absorbed natural gas process of actual geologic condition coal/shale and deep layer coal/shale adsorbance.
2) can realize adsorbing cylinder and with reference to the synchro control of cylinder temperature and pressure.
3) select rock core or diffusing appearance to experimentize according to laboratory sample, amount is regulated the size with reference to cylinder and adsorbing cylinder volume per sample, to guarantee the precision of adsorbance mensuration.
4) utilize the electrical heating wire heating in the experimentation, steel body heat transferring rapid and uniform has realized the unification of the temperature of whole device.
5) adopt muff and vacuum heat-preserving jar double-layer heat insulation system in the experimentation.
6) can carry out the HTHP sampling to the gas of adsorbing cylinder, carry out stratographic analysis, realize the quantitative measurement of multicomponent gas adsorbance.
The above is merely the schematic embodiment of the utility model, is not in order to limit the scope of the utility model.Any those skilled in the art, equivalent variations of under the prerequisite of design that does not break away from the utility model and principle, having done and modification all should belong to the scope that the utility model is protected.
Claims (10)
1. coal/shale adsorbance determinator; It is characterized in that: said adsorbance determinator comprises adsorbing cylinder that diameter is identical and with reference to cylinder; Said adsorbing cylinder opening upwards, Open Side Down is provided with reference to cylinder; Adsorbing cylinder and be fixedly installed on the end face and the bottom surface of a cylindrical bloom with reference to the cylinder bottom of cylinder respectively; The diameter of said cylindrical bloom and adsorbing cylinder and identical with reference to the diameter of cylinder, said adsorbing cylinder and with reference to cylinder by a communicating pipe conducting that penetrates two cylinder bottoms and cylindrical bloom, said communicating pipe is provided with first by-pass valve control; The opening sealing of said adsorbing cylinder is provided with the absorption cylinder cap; Opening sealing with reference to cylinder is provided with reference to cylinder cap; Said adsorbing cylinder, be provided with heating jacket with reference to the lateral wall of cylinder and cylindrical bloom, the heating jacket outside is provided with muff; In conjunction with after above-mentioned member be placed in the vacuum heat-preserving jar, opening part sealing in this vacuum heat-preserving tank top is provided with vacuum cover, said vacuum cover is pressed on adsorbing cylinder and covers; Be provided with in the said adsorbing cylinder one specimen is housed the sample hanging basket; Said adsorbing cylinder is provided with the gas outlet and first pressure transducer; Saidly be provided with the draft tube and second pressure transducer with reference to cylinder, said draft tube is connected in a gas boosting pump one end, and the gas boosting pump other end is communicated with experimental gas and helium through second by-pass valve control and the 3rd by-pass valve control of parallel connection.
2. coal as claimed in claim 1/shale adsorbance determinator is characterized in that: in the sample hanging basket in the said adsorbing cylinder and with reference in the cylinder through putting into the spatial volume size that solid little steel ball varying number, that volume is identical changes two cylinders.
3. coal as claimed in claim 1/shale adsorbance determinator is characterized in that: the high pressure-charging 70MPa of said gas boosting pump, gas boosting pump rate of pressurization and big or small experimental specific requirement are by program setting.
4. coal as claimed in claim 1/shale adsorbance determinator is characterized in that: an end of said gas boosting pump passes through the 4th by-pass valve control and is connected with reference to the cylinder draft tube.
5. coal as claimed in claim 1/shale adsorbance determinator is characterized in that: said with reference to the cylinder draft tube be provided with one the venting branch road, the venting branch road be provided with the venting valve.
6. coal as claimed in claim 1/shale adsorbance determinator is characterized in that: be provided with drain tap in the gas outlet of said adsorbing cylinder.
7. coal as claimed in claim 1/shale adsorbance determinator is characterized in that: said heating jacket is twined by electrical heating wire and constitutes, and the electrical heating wire outside is provided with insulation course, and the insulation course outside has steel material to surround; Said heating jacket connects the temperature controller of its heating of control.
8. coal as claimed in claim 1/shale adsorbance determinator is characterized in that: said sample hanging basket is that steel is cylindric, and its top is provided with swivelling cover, is respectively equipped with a pore on the bottom of sample hanging basket and the swivelling cover, and pore is provided with screen pack; Said laboratory sample is that coal/shale particle or diameter are the 25mm-38mm rock core.
9. coal as claimed in claim 1/shale adsorbance determinator is characterized in that: said first pressure transducer and second pressure transducer are digital high temperature high voltage resistant force transducer, and maximum temperature is 200 ℃, and top pressure is 70MPa.
10. coal as claimed in claim 1/shale adsorbance determinator; It is characterized in that: said first by-pass valve control is a machinery valve, and said second by-pass valve control, the 3rd by-pass valve control, the 4th by-pass valve control and venting valve and drain tap are programme controlled pneumatic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220077536XU CN202442934U (en) | 2012-03-02 | 2012-03-02 | Coal/shale adsorption capacity determinator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220077536XU CN202442934U (en) | 2012-03-02 | 2012-03-02 | Coal/shale adsorption capacity determinator |
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| CN202442934U true CN202442934U (en) | 2012-09-19 |
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| CN201220077536XU Expired - Lifetime CN202442934U (en) | 2012-03-02 | 2012-03-02 | Coal/shale adsorption capacity determinator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607991A (en) * | 2012-03-02 | 2012-07-25 | 中国石油天然气股份有限公司 | Coal/shale adsorption capacity measuring device |
| CN102967667A (en) * | 2012-11-19 | 2013-03-13 | 中国科学研究院广州地球化学研究所 | Device for qualitatively and quantitatively analyzing shale gas and using method of device |
| CN103424333A (en) * | 2013-05-17 | 2013-12-04 | 成都理工大学 | Device and method for testing specific surface of rock sample in isothermal adsorption instrument |
-
2012
- 2012-03-02 CN CN201220077536XU patent/CN202442934U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607991A (en) * | 2012-03-02 | 2012-07-25 | 中国石油天然气股份有限公司 | Coal/shale adsorption capacity measuring device |
| CN102967667A (en) * | 2012-11-19 | 2013-03-13 | 中国科学研究院广州地球化学研究所 | Device for qualitatively and quantitatively analyzing shale gas and using method of device |
| CN102967667B (en) * | 2012-11-19 | 2015-01-14 | 中国科学院广州地球化学研究所 | Device for qualitatively and quantitatively analyzing shale gas and using method thereof |
| CN103424333A (en) * | 2013-05-17 | 2013-12-04 | 成都理工大学 | Device and method for testing specific surface of rock sample in isothermal adsorption instrument |
| CN103424333B (en) * | 2013-05-17 | 2016-02-17 | 成都理工大学 | The device of rock sample specific surface is tested in a kind of isothermal adsorption instrument |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120919 Effective date of abandoning: 20140205 |
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| RGAV | Abandon patent right to avoid regrant |