CN104964905A - Tectonic coal permeability tester - Google Patents
Tectonic coal permeability tester Download PDFInfo
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- CN104964905A CN104964905A CN201510393287.3A CN201510393287A CN104964905A CN 104964905 A CN104964905 A CN 104964905A CN 201510393287 A CN201510393287 A CN 201510393287A CN 104964905 A CN104964905 A CN 104964905A
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- rock core
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- core arranging
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Abstract
The invention discloses a tectonic coal permeability tester, which can simultaneously realize steady-state method and non-steady-state method permeability tests on irregular tectonic coal. The tectonic coal permeability tester comprises a core arranging chamber in which a sample is arranged, wherein two ends of the core arranging chamber are respectively provided with vents; two ends of the sample are planes, and space between the periphery of the sample and the inner wall of the core arranging chamber is filled with glass cement; one end of the core arranging chamber is connected with a pressure regulating valve by a pipeline, and the pressure regulating valve is communicated to a gas source; a flowmeter I and an upper stream container which are connected with each other in parallel are connected between the pressure regulating valve and the core arranging chamber; the other end of the core arranging chamber is respectively connected with a flowmeter II, a vacuum pump, and a downstream container through pipelines; a differential pressure gauge is connected between the vents in the two ends of the core arranging chamber. According to the tester, sampling is easy, a sample clamp holder is prevented from pressing and damaging the sample, and the tested permeability is more close to reality; the steady-state and non-steady-state tests can be performed, so the test range is wider, meanwhile the porosity of the sample can be tested, and acquired data are more.
Description
Technical field
The present invention relates to a kind of tester of deformation coal, specifically a kind of deformation coal osmolarity tester, the steady state method to irregular deformation coal and cold store enclosure testing permeability can be realized simultaneously.
Background technology
Existing coal petrography test philosophy is theoretical based on darcy flow, and method of testing comprises steady state method and cold store enclosure.At present, experiment Permeability tester comprises three main parts, gas cylinder, rock core put room (core holding unit), gas meter, can test the sample of two kinds of specifications, be diameter be respectively 5cm, the cylinder of high 10cm and diameter be 2.5cm, the high cylinder for 5cm.Core holding unit is that rigidity is non deformable, in order to play sealing effect, clamper needs to load certain pressure, the area of section of steady state method to sample has fixing requirement (diameter of section is 5cm, 2.5cm), although cold store enclosure is to the not requirement of sample in cross section area, laboratory sample must be cylindric.Deformation coal (being especially out of shape strong deformation coal) mechanical strength is poor, brill sample is difficult, the experiment perviousness sample obtained is irregular, current Permeability tester is when test configuration coal perviousness, deformation coal need be pulverized, put compacting in shaping container into, form the Cylindrical Samples of above-mentioned rule, i.e. moulded coal, but the mode of this acquisition laboratory sample, destroys deformation coal primary structure, the permeability tested out can not reflect the true perviousness of deformation coal.
Summary of the invention
Deformation coal laboratory sample cannot be obtained in order to overcome existing Permeability tester, reflecting the true infiltrative data of deformation coal, the invention provides a kind of deformation coal osmolarity tester.This tester can carry out steady state method and cold store enclosure test simultaneously, specimen in use need not be drilled through by rig, as long as deformation coal to be ground upper and lower two parallel faces, the sample of test does not have strict above and below area requirements, and sample outside surface can be irregular.
The technical solution adopted for the present invention to solve the technical problems is: a kind of deformation coal osmolarity tester, and comprise the rock core being placed with sample and put room, rock core is put two ends, room and had air hole;
Described sample two ends are planes, and sample surrounding and rock core are put between chamber interior walls and be filled with glass cement;
Described rock core is put one end, room and is connected with pressure regulator valve by pipeline, and pressure regulator valve is communicated to source of the gas; Described pressure regulator valve and rock core are put between room and are connected with flow meter I parallel with one another and upstream container; On the pipeline of rock core storing one end, room, valve II is provided with in described flow meter I; The pipeline at described upstream container two ends is respectively arranged with valve I and valve III;
Described rock core is put the room other end and is connected to flow meter II, vacuum pump and downstream reservoir by pipeline; The connector place of described flow meter II is provided with valve IV; Described vacuum pump connector place is provided with valve V; Described downstream reservoir connector place is provided with valve VI;
Described rock core is put between the air hole of two ends, room and is connected with differential manometer.
It is further: described rock core puts upper cover and the lower cover that room comprises hollow cylinder and is arranged on hollow cylinder two ends; Described upper cover and lower cover are cylindric, and upper cover and lower cover center have air hole.
Deformation coal fragmentation, when test configuration coal permeability, need not be made into moulded coal by this tester, and the permeability tested out is closer to truly; This tester need not regular sample, for the requirement that height and the area of section of sample are not fixed, only need grind two parallel faces, like this for the deformation coal that intensity is weak, be more prone to sampling, the glass cement stronger by plasticity carries out Seal treatment, can avoid sample holder pressurization lesioned sample; This test can carry out stable state and unstable state test, and the scope of test is wider, and the data of acquisition are more; When carrying out cold store enclosure test, due to needs sample well porosity, traditional method is the factor of porosity utilizing other instrument line to test out sample, carry out testing permeability again, and this device can directly utilize this tester to measure sample well porosity, realize factor of porosity test and testing permeability integration, test more convenient and efficient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that rock core puts room decomposition texture schematic diagram;
Fig. 3 is that rock core when being placed with regular sample puts cell structure schematic diagram;
Fig. 4 is that rock core when being placed with irregular sample puts cell structure schematic diagram.
In figure: 1, pressure regulator valve; 2, flow meter I; 3, valve II; 4, rock core puts room; 5, sample; 6, glass cement; 7, flow meter II; 8, valve IV; 9, vacuum pump; 10, valve V; 11, valve VI; 12, downstream reservoir; 13, lower cover; 14, upper cover; 15, valve III; 16, upstream container; 17, valve I; 18, differential manometer.
Embodiment
Be below a specific embodiment of the present invention, existing the invention will be further described by reference to the accompanying drawings.
As shown in Figure 1, a kind of deformation coal osmolarity tester, rock core is put two ends, room 4 and is had air hole; Pressure regulator valve 1 and rock core are put between room 4 and are connected with flow meter I 2 parallel with one another and upstream container 16; On the pipeline of rock core storing one end, room 4, valve II 3 is provided with in flow meter I 2; The pipeline at upstream container 16 two ends is respectively arranged with valve I 17 and valve III 15; Pressure regulator valve 1 is communicated to source of the gas; Rock core is put room 4 other end and is connected to flow meter II 7, vacuum pump 9 and downstream reservoir 12 by pipeline; The connector place of flow meter II 7 is provided with valve IV 8; Vacuum pump 9 connector place is provided with valve V 10; Downstream reservoir 12 connector place is provided with valve VI 11; Rock core is put between the air hole of two ends, room 4 and is connected with differential manometer 18.Again shown in composition graphs 2, rock core puts upper cover 14 and the lower cover 13 that room 4 comprises hollow cylinder and is arranged on hollow cylinder two ends; Upper cover 14 and lower cover 13 are in cylindric, and upper cover 14 and lower cover 13 center have air hole; Sample 5 two ends are planes, and sample 5 is irregularly shaped, and sample 5 surrounding and rock core are put between the inwall of room 4 and be filled with glass cement 6.
This tester can realize testing infiltrative test for irregular deformation coal, rock core put room be have upper and lower covers, can the device of loading and unloading flexibly, steady state method can be carried out and cold store enclosure is tested simultaneously.
steady state method is tested
Utilize the plasticity of glass cement, solve the protolith heart and put the non deformable shortcoming in room.
The sample 5 that above and below polishes is placed in rock core to be put in the middle of the lower cover 13 of room 4, glass cement 6 is in layer placed on around sample, glass cement replaces the clamper in rock core storing room, avoid the structure that clamper pressurization destroys coal body, as long as the area of section of sample is put in the cross-sectional extent of room 4 at rock core, guarantee that can add glass cement 6 around carries out closing;
After glass cement solidifies, closed above, by all valve opens, opens vacuum pump, after exhausting vacuum, by valve I 17, III 15,
11, V 10 close, valve II 3, IV 8 maintains open state, opens gas cylinder, slow key pressure valve 1, after ventilation, can record the data of outlet side flowmeter 7 after outlet side air output is stablized, complete and utilize steady state method test configuration coal perviousness.
Cold store enclosure is tested
I.e. momentary pulse method, when profit tests sample permeability in this way, need the factor of porosity of sample, so put at rock core volume, the factor of porosity that sample 5 is tested in room 4, need to realize sample volume, factor of porosity and infiltrative test by glass cement, plastic sheeting in test process.
The following steps are divided into when concrete test:
The first, film is attached to rock core and puts in chamber interior walls, open vacuum pump and all valves, after vacuumizing, then close out valve valve I 17, III 15,
10, other valves maintain open mode, and open pressure regulator valve fine setting gaseous tension, after ventilation, fixed gas pressure is constant, by the time gas meter
2 no longer change and rock core put indoor gaseous tension equal with the pressure of pressure regulator valve time, write down gas flow V1, the gas flow now measured is the gas volume entering rock core storing room (not loading sample);
The second, put inside the lower cover of room by the rock core that is placed in above or below of sample, set level, sample and lower cover junction are stained with glass cement, after to be dried, then upper and lower cover is covered, connect snorkel, open vacuum pump and all valves, after vacuumizing, then close out valve valve I 17, III 15,
10, open pressure regulator valve fine setting gaseous tension, fixing gas pressure value is identical with the first step, treats that sample adsorption is saturated, gas meter
2 constant time, the gas flow measured and gas volume are designated as V2
,relative to the first step, second step gas volume reduce, this is because sample occupy certain space (now volume does not comprise sample active porosity), the gas volume of minimizing is designated as V
3=v
1-v
2;
3rd, after opening upper cover, sample does not unload, and is poured into by glass cement in measuring cup, pours rock core again into and puts indoor, stop, writing down the volume V now pouring glass cement into when the glass cement height poured into is equal with height of specimen after having measured glass cement volume
5,rock core is put the volume V of room
4deduct the volume V of glass cement
5, remaining volume is designated as V6, now in two kinds of situation: height and the rock core of (1) sample put room height identical time, V6 is the volume of sample 5; (2) when the height of sample is less than rock core storing room height, then by residual volume V
6deduct the volume V7 that rock core puts more than indoor sample end face (non-filling glass cement) part, be sample volume V8;
Finally by V
8deduct V
3, be the volume of voids of sample, be designated as V
9, sample well porosity is V
9divided by V
6or V
8seal upper cover, open all valves, after vacuumizing, valve-off II 3, IV 8, V 10, other valves maintain open mode, regulate pressure regulator valve, give upstream container 16 1 pulses and gaseous tension, closing pressure-regulating valve, by the time, when differential manometer 18 measures upstream container and downstream reservoir 12 equipressure, the perviousness utilizing cold store enclosure test configuration coal is namely completed.
Claims (2)
1. a deformation coal osmolarity tester, comprise the rock core being placed with sample (5) and put room (4), rock core is put room (4) two ends and is had air hole;
It is characterized in that:
Described sample (5) two ends are planes, and sample (5) surrounding and rock core are put between room (4) inwall and be filled with glass cement (6);
Described rock core is put room (4) one end and is connected with pressure regulator valve (1) by pipeline, and pressure regulator valve (1) is communicated to source of the gas; Described pressure regulator valve (1) and rock core are put between room (4) and are connected with flow meter I (2) parallel with one another and upstream container (16); On the pipeline of rock core storing room (4) one end, valve II (3) is provided with in described flow meter I (2); The pipeline at described upstream container (16) two ends is respectively arranged with valve I (17) and valve III (15);
Described rock core is put room (4) other end and is connected to flow meter II (7), vacuum pump (9) and downstream reservoir (12) by pipeline; The connector place of described flow meter II (7) is provided with valve IV (8); Described vacuum pump (9) connector place is provided with valve V (10); Described downstream reservoir (12) connector place is provided with valve VI (11);
Described rock core is put between the air hole of room (4) two ends and is connected with differential manometer (18).
2. deformation coal osmolarity tester according to claim 1, is characterized in that: described rock core puts upper cover (14) and the lower cover (13) that room (4) comprises hollow cylinder and is arranged on hollow cylinder (19) two ends; Described upper cover (14) and lower cover (13) are in cylindric, and upper cover (14) and lower cover (13) center have air hole (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510393287.3A CN104964905A (en) | 2015-07-07 | 2015-07-07 | Tectonic coal permeability tester |
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|---|---|---|---|
| CN201510393287.3A CN104964905A (en) | 2015-07-07 | 2015-07-07 | Tectonic coal permeability tester |
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| CN104964905A true CN104964905A (en) | 2015-10-07 |
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| CN201510393287.3A Pending CN104964905A (en) | 2015-07-07 | 2015-07-07 | Tectonic coal permeability tester |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928858A (en) * | 2016-07-06 | 2016-09-07 | 西南交通大学 | Method for testing indoor seepage of large-size irregular undisturbed fractured rock |
| CN105928764A (en) * | 2016-07-06 | 2016-09-07 | 西南交通大学 | Method for preventing seepage by glue injection to side wall of irregular undisturbed fractured rock |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08178828A (en) * | 1994-12-21 | 1996-07-12 | Mitsubishi Materials Corp | Tester equipment for water permeability and gas permeability |
| US5544520A (en) * | 1995-02-10 | 1996-08-13 | Sandia Corporation | Bridge permeameter |
| KR20000001465A (en) * | 1998-06-11 | 2000-01-15 | 김충섭 | Permeability measuring method and measuring device of permeated material passing through non-porous membrane |
| CN201532351U (en) * | 2009-11-13 | 2010-07-21 | 中国科学院武汉岩土力学研究所 | Device for utilizing variable-volume pressure pulse method to test gas permeation coefficients of rocks |
| CN102147348A (en) * | 2011-01-25 | 2011-08-10 | 中国科学院山西煤炭化学研究所 | Device and method for measuring gas permeation in coal |
| CN102252951A (en) * | 2011-07-14 | 2011-11-23 | 中国科学院武汉岩土力学研究所 | High-temperature fractured rock mass permeation test device and method |
| CN102980709A (en) * | 2012-12-04 | 2013-03-20 | 四川大学 | Gas pressure and flow testing device and application thereof |
| CN203422307U (en) * | 2013-07-25 | 2014-02-05 | 中国石油天然气股份有限公司 | Quick testing device for permeability of dense rock |
| CN103616322A (en) * | 2013-11-25 | 2014-03-05 | 中国石油天然气股份有限公司 | Non-steady state detection device and non-steady state detection method for permeability of low-permeability rock |
| CN103645129A (en) * | 2013-12-30 | 2014-03-19 | 中国科学院武汉岩土力学研究所 | High-temperature ultralow permeability measuring instrument |
| CN103969165A (en) * | 2014-04-30 | 2014-08-06 | 东北大学 | Device and method for simultaneously testing permeability of compact rocks under transient state and steady state |
| CN104034644A (en) * | 2014-06-11 | 2014-09-10 | 河海大学 | Multiphase seepage medium triaxial stress seepage coupling test device capable of rapidly measuring porosity |
| CN104198354A (en) * | 2014-09-28 | 2014-12-10 | 湖南科技大学 | Raw coal transparent pouring piece and preparation method thereof, as well as permeability testing device |
| CN104266949A (en) * | 2014-09-03 | 2015-01-07 | 中国石油大学(北京) | Measurement method of rock core gas logging permeability |
| CN204116187U (en) * | 2014-09-28 | 2015-01-21 | 湖南科技大学 | A kind of raw coal for penetration testing is transparent builds part |
| CN204302156U (en) * | 2014-12-27 | 2015-04-29 | 重庆地质矿产研究院 | Experimental device for measure low permeability rock specimen permeability and porosity |
| CN104634637A (en) * | 2015-03-03 | 2015-05-20 | 中国科学院武汉岩土力学研究所 | Artificial rock core containing natural rock as well as manufacturing method and molding mould of artificial rock core |
| CN204389254U (en) * | 2015-01-19 | 2015-06-10 | 中国矿业大学(北京) | A kind of deformation coal raw coal sample preparation device |
| CN204988965U (en) * | 2015-07-07 | 2016-01-20 | 中国矿业大学 | Structure coal permeability tester |
-
2015
- 2015-07-07 CN CN201510393287.3A patent/CN104964905A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08178828A (en) * | 1994-12-21 | 1996-07-12 | Mitsubishi Materials Corp | Tester equipment for water permeability and gas permeability |
| US5544520A (en) * | 1995-02-10 | 1996-08-13 | Sandia Corporation | Bridge permeameter |
| KR20000001465A (en) * | 1998-06-11 | 2000-01-15 | 김충섭 | Permeability measuring method and measuring device of permeated material passing through non-porous membrane |
| CN201532351U (en) * | 2009-11-13 | 2010-07-21 | 中国科学院武汉岩土力学研究所 | Device for utilizing variable-volume pressure pulse method to test gas permeation coefficients of rocks |
| CN102147348A (en) * | 2011-01-25 | 2011-08-10 | 中国科学院山西煤炭化学研究所 | Device and method for measuring gas permeation in coal |
| CN102252951A (en) * | 2011-07-14 | 2011-11-23 | 中国科学院武汉岩土力学研究所 | High-temperature fractured rock mass permeation test device and method |
| CN102980709A (en) * | 2012-12-04 | 2013-03-20 | 四川大学 | Gas pressure and flow testing device and application thereof |
| CN203422307U (en) * | 2013-07-25 | 2014-02-05 | 中国石油天然气股份有限公司 | Quick testing device for permeability of dense rock |
| CN103616322A (en) * | 2013-11-25 | 2014-03-05 | 中国石油天然气股份有限公司 | Non-steady state detection device and non-steady state detection method for permeability of low-permeability rock |
| CN103645129A (en) * | 2013-12-30 | 2014-03-19 | 中国科学院武汉岩土力学研究所 | High-temperature ultralow permeability measuring instrument |
| CN103969165A (en) * | 2014-04-30 | 2014-08-06 | 东北大学 | Device and method for simultaneously testing permeability of compact rocks under transient state and steady state |
| CN104034644A (en) * | 2014-06-11 | 2014-09-10 | 河海大学 | Multiphase seepage medium triaxial stress seepage coupling test device capable of rapidly measuring porosity |
| CN104266949A (en) * | 2014-09-03 | 2015-01-07 | 中国石油大学(北京) | Measurement method of rock core gas logging permeability |
| CN104198354A (en) * | 2014-09-28 | 2014-12-10 | 湖南科技大学 | Raw coal transparent pouring piece and preparation method thereof, as well as permeability testing device |
| CN204116187U (en) * | 2014-09-28 | 2015-01-21 | 湖南科技大学 | A kind of raw coal for penetration testing is transparent builds part |
| CN204302156U (en) * | 2014-12-27 | 2015-04-29 | 重庆地质矿产研究院 | Experimental device for measure low permeability rock specimen permeability and porosity |
| CN204389254U (en) * | 2015-01-19 | 2015-06-10 | 中国矿业大学(北京) | A kind of deformation coal raw coal sample preparation device |
| CN104634637A (en) * | 2015-03-03 | 2015-05-20 | 中国科学院武汉岩土力学研究所 | Artificial rock core containing natural rock as well as manufacturing method and molding mould of artificial rock core |
| CN204988965U (en) * | 2015-07-07 | 2016-01-20 | 中国矿业大学 | Structure coal permeability tester |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928858A (en) * | 2016-07-06 | 2016-09-07 | 西南交通大学 | Method for testing indoor seepage of large-size irregular undisturbed fractured rock |
| CN105928764A (en) * | 2016-07-06 | 2016-09-07 | 西南交通大学 | Method for preventing seepage by glue injection to side wall of irregular undisturbed fractured rock |
| CN105928764B (en) * | 2016-07-06 | 2019-01-18 | 西南交通大学 | Irregular original state crack rock side wall injecting glue anti-seepage method |
| CN105928858B (en) * | 2016-07-06 | 2019-01-18 | 西南交通大学 | Seepage flow test method in the irregular original state crack rock room of large scale |
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Application publication date: 20151007 |
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