CN102607989A - Gas content testing device - Google Patents
Gas content testing device Download PDFInfo
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- CN102607989A CN102607989A CN2012100585209A CN201210058520A CN102607989A CN 102607989 A CN102607989 A CN 102607989A CN 2012100585209 A CN2012100585209 A CN 2012100585209A CN 201210058520 A CN201210058520 A CN 201210058520A CN 102607989 A CN102607989 A CN 102607989A
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Abstract
The invention discloses a gas content testing device, consisting of a sample storing device, a gas volume measuring device and a computer. The sample storing device is connected with the gas volume measuring device, and the gas volume measuring device is connected with the computer; the sample storing device comprises a sealing tank and a gas outlet; the sealing tank is used for storing a sample to be tested; the gas volume measuring device comprises a gas inlet, a gas storing tank, a rubber hose, a volume flow meter, a liquid storing tank, a lifter and a hanging rope; specific liquid is stored in the gas storing tank; the gas outlet is connected into the gas inlet of the gas volume measuring device through a gas pipe; the gas storing tank is connected with the liquid storing tank through the rubber hose; the volume flow meter is mounted on the rubber hose which connects the gas storing tank and the liquid storing tank, and is used for measuring the flowing liquid volume, namely the desorbed gas volume of the sample to be tested; and tested data are transmitted to the computer through a first data transmission wire. According to the gas content testing device disclosed by the invention, the automation degree, the working efficiency and the test efficiency can be greatly improved.
Description
Technical field
The present invention relates to the exploratory development technical field of shale gas, coal-seam gas, particularly relate to the air content field tests of shale gas, coal-seam gas, is a kind of proving installation that is used for shale gas, the test of coal-seam gas air content concretely.
Background technology
Shale gas, coal-seam gas are to compose to exist a kind of in shale or the coal seam to be absorption, to dissociate or the rock gas of dissolved state.In the conventional gas reservoir, generally be mainly free gas and solution gas, do not have adsorbed gas basically, and in unconventional gas reservoir such as shale and coal seam, adsorbed gas content is higher, the total amount of adsorbed gas and free gas is generally greater than 90%.The big or small direct relation shale gas of adsorbed gas and free gas content and the DEVELOPMENT PROSPECT of coal-seam gas; The somewhere shale gas to be estimated effectively or whether coal-seam gas has Commercial Prospect; Must set up air content evaluating data accurately, these air content data are used for gas reservoir simulation and production forecast.Must understand the air content and the desorption properties of the shale rock core or the coal heart for this reason.Therefore, shale gas/coal-seam gas air content testing apparatus important that in the exploitation of shale gas and cbm exploration, just seems.
At present, developed both at home and abroad equipment and the method that several kinds of shale gas and coal-seam gas air content are tested." direct method " that U.S. mineral bureau (USBM) proposes is considered to measure the industrial standard of coal-bed gas content.This method principle is to utilize " pneumatic process ", regularly is discharged in the glass cylinder separating the gas that accumulates in the cucurbitula, and through the volume of periodic observation institute drainage water under atmospheric pressure and the temperature conditions, thus the volume of definite desorption gas.This method also is applied to the air content test of shale gas.Because the very long needs of desorption time several days even a few week of shale and coal, every separated several hours needs carry out record to experimental data, and workload in kind is very big, and the artificial number of degrees have increased experimental error greatly simultaneously.
Another kind is used for the equipment and the method for shale gas and the test of coal-seam gas air content; It is a kind of existing fast desorption meter for gas content of goal seam; Can be used for shale gas, the test of coal-seam gas air content; Mainly be that the gas fast desorption came out, and utilizes drainage to record and separates the gas volume of sucking-off after bulk sample was directly pulverized.But this method can only be obtained total air content of shale and coal, and can not simulate the process of the desorb of shale and coal.Therefore, it is high to press for a kind of automaticity of research and development, can obtain the desorption process of shale and coal and the air content proving installation of air content data again.
Summary of the invention
The present invention is in order to overcome the shortcoming that existing air content testing apparatus automaticity is low, test error is big, a kind of new air content proving installation that is used to test shale gas/coal-seam gas of special proposition.
The embodiment of the invention provides a kind of air content proving installation; Form by sample storing unit 101, gas volume measurement mechanism 102 and computing machine 15; Said sample storing unit 101 is connected in said gas volume measurement mechanism 102, and said gas volume measurement mechanism 102 is connected in said computing machine 15; Wherein, said sample storing unit 101 comprises sealable tank 2 and gas outlet 3, and said sealable tank 2 is used to deposit testing sample 1; Said gas volume measurement mechanism 102 comprises air intake opening 5, gas-holder 7, band tubing 8, volumetric displacement meter 9, fluid reservoir 10, lifter 11 and lifting rope 12, deposits particular fluid 6 in the said gas-holder 7; Said gas outlet 3 is connected to the air intake opening 5 of said gas volume measurement mechanism 102 through gas outlet 4; Said gas-holder 7 connects said fluid reservoir 10 through said band tubing 8; Said volumetric displacement meter 9 is installed on the band tubing 8 that connects said gas-holder 7 and said fluid reservoir 10; Be used to measure the liquid volume of flowing through, promptly said testing sample 1 is separated the gas volume of sucking-off, will record data through first data line 13 and be sent to said computing machine 15.
Preferably, said lifter 11 connects said fluid reservoir 10 through said lifting rope 12, and it is identical with liquid level in the said fluid reservoir 10 that said computing machine 15 is adjusted said gas-holder 7 through the said lifter 11 of second data line, 14 controls.
Preferably, said testing sample 1 is the shale or the coal heart.
Preferably, said particular fluid 6 is a saturated aqueous common salt.
Preferably, said sample storing unit 101 is a plurality of with said gas volume measurement mechanism 102, and both are corresponding one by one, the feasible air content that can measure a plurality of testing samples 1 simultaneously.
The beneficial effect that being used to of the embodiment of the invention tested the air content proving installation of shale gas/coal-seam gas air content is: the present invention utilizes volumetric displacement meter to measure the liquid volume that gas-holder is discharged; Realize the measurement of gas volume; Data measured reaches in the computing machine; Carry out automatic record, improved automaticity and work efficiency greatly.The present invention can either carry out the site desorption work of shale gas/coal-seam gas, can measure original place air content data apace again, for the gas storage capability of studying certain regional shale and coal seam in time provides basic data; And can test simultaneously a plurality of shale and coal core sample simultaneously, improve conventional efficient.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, to those skilled in the art; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of an embodiment of air content proving installation of the present invention;
Fig. 2 is the structural representation of another embodiment of air content proving installation of the present invention;
Fig. 3 is the structural representation of an embodiment of the test macro that is composed in parallel by 6 air content proving installations of the present invention.
Drawing reference numeral:
The 101-sample storing unit 102-gas volume measurement mechanism 1-sample 2-sealable tank 3-gas outlet 4-gas outlet 5-air intake opening 6-particular fluid 7-gas-holder 8-band tubing 9-volumetric displacement meter 10-gas-holder 11-lifter 12-lifting rope 13-first data line 14-second data line 15-computing machine
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Fig. 1 is the structural representation of an embodiment of air content proving installation of the present invention.As shown in the figure; The air content proving installation of present embodiment comprises sample storing unit 101, gas volume measurement mechanism 102 and computing machine 15; Said sample storing unit 101 is connected in said gas volume measurement mechanism 102, and said gas volume measurement mechanism 102 is connected in said computing machine 15.Wherein, Said sample storing unit 101 is used to deposit testing sample; The gas that testing sample desorbs is sent in the gas volume measurement mechanism 102; The gas that 102 pairs of testing samples of gas volume measurement mechanism are separated sucking-off is measured, and measurement result is sent to stores in the computing machine 15 and show.In the present embodiment, testing sample is the shale or the coal heart.
Fig. 2 is the structural representation of another embodiment of air content proving installation of the present invention.As shown in the figure, said sample storing unit 101 comprises sealable tank 2 and gas outlet 3, and said sealable tank 2 is a rigid body container, and it is used to deposit testing sample 1.In the present embodiment, testing sample 1 can be the shale or the coal heart.
Said gas volume measurement mechanism 102 comprises air intake opening 5, gas-holder 7, band tubing 8, volumetric displacement meter 9, fluid reservoir 10, lifter 11 and lifting rope 12.Deposit particular fluid 6 in the said gas-holder 7, in the present embodiment, particular fluid can be the liquid lower to gas solubility such as saturated aqueous common salt.
Said gas outlet 3 is connected to the air intake opening 5 of said gas volume measurement mechanism 102 through gas outlet 4; Said gas-holder 7 connects said fluid reservoir 10 through said band tubing 8; Said volumetric displacement meter 9 is installed on the band tubing 8 that connects said gas-holder 7 and said fluid reservoir 10; Be used to measure the liquid volume of flowing through, promptly said testing sample 1 is separated the gas volume of sucking-off, and will record data through first data line 13 and be sent to said computing machine 15.
In the present embodiment, said lifter 11 connects said fluid reservoir 10 through said lifting rope 12, and said lifter 11 is connected to computing machine 15 through second data line.It is identical with liquid level in the said fluid reservoir 10 that said computing machine 15 is adjusted said gas-holder 7 through the said lifter 11 of second data line 14 control.
The flow process of utilizing the air content proving installation of present embodiment to carry out the air content test of the shale or the coal heart is: at first utilize lifter 11 to promote fluid reservoirs 10, let particular fluid 6 be full of gas-holder 7, make gas-holder 7 not have gas to exist; Pack into after weighing testing sample 1 seal in the sealable tank 2 after, gas outlet 4 is linked to each other gas outlet 3 with air intake opening 5; The gas that desorbs when testing sample begins to discharge when entering gas-holder 7 from sealable tank 2, and the liquid in the gas-holder 7 drains in the fluid reservoir 10 through band tubing 8 and volumetric displacement meter 9; Wherein, the liquid volume that volumetric displacement meter 9 automatic gauges flow through, and through first data line 13 volume data that records is reached computing machine 15 and note; Simultaneous computer 15 control lifters 11 are adjusted the liquid level of liquid in fluid reservoir 10 and the gas-holder 7; Make fluid reservoir 10 identical all the time with the liquid level of gas-holder 7 interior liquid; The pressure that is gas in the gas-holder 7 is always atmospheric pressure, to such an extent as to particular fluid 6 can drain into fluid reservoir 10 from gas-holder 7 smoothly.After the gas desorption in the testing sample in the sealable tank 21 finishes; Close volumetric displacement meter 9; Break off gas outlet 3 and gas outlet 4, utilize the height of lifter 11 rising fluid reservoirs 10, particular fluid 6 is turned back to gas-holder 7 again; Discharge the gas in the gas-holder 7, the promoting the circulation of qi appearance of going forward side by side is gathered so that carry out the proximate analysis of gas.
Fig. 3 is the structural representation of an embodiment of the test macro that is composed in parallel by 6 air content proving installations of the present invention.As shown in the figure, sample storing unit 101 is 6 with said gas volume measurement mechanism 102, and both are corresponding one by one, the feasible air content that can measure 6 testing samples simultaneously.In Fig. 3, only illustrated being connected of one group of sample storing unit and gas volume measurement mechanism, other 5 groups of connected modes are identical.Certainly, the invention is not restricted to this, sample storing unit 101 and said gas volume measurement mechanism 102 also can be 4,8 or the like simultaneously, make the air content that can measure 4,8 or more a plurality of testing samples simultaneously.
According to the air content proving installation of the embodiment of the invention, shale gas and coal-bed gas content on-the-spot test experimental work have successfully been carried out.Through to 7 same degree of depth of different preparatory reconnaissance boreholes shale and coal core sample; Utilize " direct method " test macro of air content proving installation of the present invention and USBM to compare test analysis respectively; The result shows that the air content data of two kinds of method institute test sample article are identical, and explains that air content proving installation of the present invention can accomplish on-the-spot shale gas/coal-seam gas air content test job smoothly; The experimental data that is provided is accurately credible; Can significantly reduce manual operations, improve production efficiency, be a creative new design.
Being used to of the embodiment of the invention test shale gas/coal-seam gas air content the air content proving installation can to transport shale gas/cbm exploration to on-the-spot through vehicle-mounted; Sample storing unit, gas volume measurement mechanism and computing machine are assembled; Configure the time of test according to the different geologic features that different regions had; Carry out the air content test in on-the-spot shale of exploration and coal seam, can measure and study the reservoir gas storage capability of different regions gas-bearing property characteristic, the air content regularity of distribution and shale and coal.The present invention utilizes volumetric displacement meter to measure the liquid volume that gas-holder is discharged, and realizes the measurement of gas volume, and data measured reaches in the computing machine, carries out automatic record, has improved automaticity and work efficiency greatly.The present invention can either carry out shale gas/coal-seam gas site desorption work, can measure original place air content data apace again, for the gas storage capability of studying certain regional shale and coal seam in time provides basic data.And can measure simultaneously a plurality of shale and coal core sample simultaneously, improve conventional efficient.
Above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely specific embodiment of the present invention; And be not used in qualification protection scope of the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. air content proving installation; It is characterized in that; Said air content proving installation is made up of sample storing unit (101), gas volume measurement mechanism (102) and computing machine (15); Said sample storing unit (101) is connected in said gas volume measurement mechanism (102), and said gas volume measurement mechanism (102) is connected in said computing machine (15); Wherein,
Said sample storing unit (101) comprises sealable tank (2) and gas outlet (3), and said sealable tank (2) is used to deposit testing sample (1);
Said gas volume measurement mechanism (102) comprises air intake opening (5), gas-holder (7), band tubing (8), volumetric displacement meter (9), fluid reservoir (10), lifter (11) and lifting rope (12), deposits particular fluid (6) in the said gas-holder (7);
Said gas outlet (3) is connected to the air intake opening (5) of said gas volume measurement mechanism (102) through gas outlet (4); Said gas-holder (7) connects said fluid reservoir (10) through said band tubing (8); Said volumetric displacement meter (9) is installed on the band tubing (8) that connects said gas-holder (7) and said fluid reservoir (10); Be used to measure the liquid volume of flowing through; Be that said testing sample (1) is separated the gas volume of sucking-off, will record data through first data line (13) and be sent to said computing machine (15).
2. air content proving installation according to claim 1; It is characterized in that; Said lifter (11) connects said fluid reservoir (10) through said lifting rope (12), and said computing machine (15) is controlled said lifter (11) through second data line (14), and to adjust said gas-holder (7) identical with liquid level in the said fluid reservoir (10).
3. air content proving installation according to claim 1 is characterized in that, said testing sample (1) is the shale or the coal heart.
4. air content proving installation according to claim 1 is characterized in that, said particular fluid (6) is a saturated aqueous common salt.
5. like each described air content proving installation of claim 1 to 4; It is characterized in that; Said sample storing unit (101) and said gas volume measurement mechanism (102) are a plurality of, and both are corresponding one by one, the feasible air content that can measure a plurality of testing samples (1) simultaneously.
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CN2012100585209A CN102607989A (en) | 2012-03-07 | 2012-03-07 | Gas content testing device |
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CN2012100585209A CN102607989A (en) | 2012-03-07 | 2012-03-07 | Gas content testing device |
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103149121A (en) * | 2013-02-07 | 2013-06-12 | 中国石油天然气股份有限公司西南油气田分公司勘探开发研究院 | Unconventional natural gas content automatic measuring apparatus and measuring method thereof |
CN103267553A (en) * | 2013-04-28 | 2013-08-28 | 扬州大学 | Shale gas evolution quantity metering device |
CN103808592A (en) * | 2014-03-04 | 2014-05-21 | 江苏珂地石油仪器有限公司 | Gas content tester for shale gas |
CN103822849A (en) * | 2013-11-22 | 2014-05-28 | 中国地质科学院地质力学研究所 | Automatic field analyzer system for non-conventional gas |
CN104155206A (en) * | 2013-05-14 | 2014-11-19 | 中国石油化工股份有限公司 | Rock gas content measurement device and method for measuring rock gas content by utilization of device |
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CN107727530A (en) * | 2017-10-19 | 2018-02-23 | 中国地质大学(北京) | Based on the whole airtight instrument for measuring gas content of integration of temperature and pressure backtracking principle and application |
CN107916926A (en) * | 2016-10-10 | 2018-04-17 | 中国石油化工股份有限公司 | Oil reservoir gas tightness evaluation method |
CN111721669A (en) * | 2020-07-06 | 2020-09-29 | 北京中建建筑科学研究院有限公司 | Method for measuring apparent density and gas content of material |
CN111781089A (en) * | 2019-04-04 | 2020-10-16 | 应急管理部化学品登记中心 | Novel sample and water mixing method for measuring gas release rate of substance in water |
CN112903520A (en) * | 2021-01-22 | 2021-06-04 | 重庆地质矿产研究院 | Test bench for shale gas-containing test |
CN116066068A (en) * | 2021-12-30 | 2023-05-05 | 中国石油天然气集团有限公司 | Method and device for determining well-logging time, storage medium and electronic equipment |
CN117665305A (en) * | 2024-02-01 | 2024-03-08 | 山西华新气体能源研究院有限公司 | Automatic desorption device for gas content |
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EP2955499A4 (en) * | 2013-02-07 | 2016-11-02 | Petro China Co Ltd | Automatic measuring instrument and measuring method for unconventional natural gas content |
CN103149121A (en) * | 2013-02-07 | 2013-06-12 | 中国石油天然气股份有限公司西南油气田分公司勘探开发研究院 | Unconventional natural gas content automatic measuring apparatus and measuring method thereof |
CN103149121B (en) * | 2013-02-07 | 2014-10-15 | 中国石油天然气股份有限公司西南油气田分公司勘探开发研究院 | Unconventional natural gas content automatic measuring apparatus and measuring method thereof |
CN103267553A (en) * | 2013-04-28 | 2013-08-28 | 扬州大学 | Shale gas evolution quantity metering device |
CN104155206A (en) * | 2013-05-14 | 2014-11-19 | 中国石油化工股份有限公司 | Rock gas content measurement device and method for measuring rock gas content by utilization of device |
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CN103822849A (en) * | 2013-11-22 | 2014-05-28 | 中国地质科学院地质力学研究所 | Automatic field analyzer system for non-conventional gas |
CN103822849B (en) * | 2013-11-22 | 2016-06-29 | 中国地质科学院地质力学研究所 | The scene of a kind of non-conventional gas resolves instrument system automatically |
CN103808592A (en) * | 2014-03-04 | 2014-05-21 | 江苏珂地石油仪器有限公司 | Gas content tester for shale gas |
CN104280310A (en) * | 2014-10-27 | 2015-01-14 | 合肥卓越分析仪器有限责任公司 | Automatic analyzer for carbon content in cast iron sample |
CN107916926A (en) * | 2016-10-10 | 2018-04-17 | 中国石油化工股份有限公司 | Oil reservoir gas tightness evaluation method |
CN107916926B (en) * | 2016-10-10 | 2021-02-23 | 中国石油化工股份有限公司 | Oil reservoir gas tightness evaluation method |
CN107727530A (en) * | 2017-10-19 | 2018-02-23 | 中国地质大学(北京) | Based on the whole airtight instrument for measuring gas content of integration of temperature and pressure backtracking principle and application |
CN111781089A (en) * | 2019-04-04 | 2020-10-16 | 应急管理部化学品登记中心 | Novel sample and water mixing method for measuring gas release rate of substance in water |
CN111721669A (en) * | 2020-07-06 | 2020-09-29 | 北京中建建筑科学研究院有限公司 | Method for measuring apparent density and gas content of material |
CN112903520A (en) * | 2021-01-22 | 2021-06-04 | 重庆地质矿产研究院 | Test bench for shale gas-containing test |
CN116066068A (en) * | 2021-12-30 | 2023-05-05 | 中国石油天然气集团有限公司 | Method and device for determining well-logging time, storage medium and electronic equipment |
CN116066068B (en) * | 2021-12-30 | 2024-03-29 | 中国石油天然气集团有限公司 | Method and device for determining well-logging time, storage medium and electronic equipment |
CN117665305A (en) * | 2024-02-01 | 2024-03-08 | 山西华新气体能源研究院有限公司 | Automatic desorption device for gas content |
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Application publication date: 20120725 |