CN102109428A - Portable tester for shale gas and coal bed gas - Google Patents
Portable tester for shale gas and coal bed gas Download PDFInfo
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- CN102109428A CN102109428A CN 201010621116 CN201010621116A CN102109428A CN 102109428 A CN102109428 A CN 102109428A CN 201010621116 CN201010621116 CN 201010621116 CN 201010621116 A CN201010621116 A CN 201010621116A CN 102109428 A CN102109428 A CN 102109428A
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- frequency
- gas
- fixed
- coal
- shale
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- 239000007789 gases Substances 0.000 title claims abstract description 86
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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Abstract
Description
Technical field
The present invention relates to coal-seam gas, shale gas air content testing apparatus, particularly relate to a kind of coal-seam gas, the portable quick sample preparation of shale gas air content test and equipment of desorb of being used for.
Background technology
At present, coal-seam gas, shale gas are to compose to deposit a kind of in coal seam or the shale and be absorption, dissociate or the rock gas of dissolved state.In the conventional gas reservoir, generally be mainly free gas and solution gas, substantially there is not adsorbed gas, and in unconventional gas reservoir such as coal seam and shale, adsorbed gas content is higher, adsorbed gas and free gas content are generally greater than 90% in coal seam and the shale, the size of absorption and free gas absorption air content is directly connected to the enrichment degree and the development technique of rock gas, particularly concerning unconventional rock gases such as coal-seam gas, shale gas, adsorbed gas and free gas assay are the key factors of evaluating reservoir, reserve estimate and development and Design.Therefore, the test experiments of rock gas adsorbed gas and free gas content in the gassiness sample has been widely used in shale gas, the cbm exploration exploitation.In addition, in fields such as mining and gas detection, environmental protection and monitoring, also be widely used.
At present, also be not used in the special-purpose experimental facilities that adsorbed gas and free content are accurately measured.When utilizing Routine Test Lab equipment to carry out the experiment of adsorbed gas and free gas content measuring, the single isolated vapor tight tank of gassiness coal petrography and shale sample need being packed into, vapor tight tank is placed in the water bath of constant temperature.The coal petrography or the shale that are placed in the sealable tank begin to carry out the nature desorb, by wireway, plastic lined piping and a sealable tank internal communication that terminates on the vapor tight tank, the other end stretches into U type buret upper opening, be placed with in the buret and dye coloured liquid, by U type connecting pipe principle the amount of gas is carried out reading and measure.The sample nature general time of desorb is longer, and at least a couple of days, many persons several months, the production scene personnel are difficult in time obtain experimental data, and experimental period is long.Use through on-the-spot, find that there is following defective in above-mentioned experimental system:
1, field experiment lacks portable, special-purpose experimental box and experiment porch at present, and stability is bad;
2, the sample nature desorb of placing owing to vapor tight tank, the desorption experiment cycle is long, and data can not in time provide for producing the field staff, and influence is to the evaluation of shale and coal-seam gas;
3, owing to when experiment, also need hammer that coal petrography and shale sample are carried out pulverization process, handle slowly, cause sample to be exposed to airborne overlong time, it is poor to utilize hammer to knock crushing effect in addition, a lot of samples do not reach the required meticulous degree of grinding of technical analysis, cause the sample waste.
Chinese patent publication number: CN101034050A provides a kind of fast desorption meter for gas content of goal seam.Comprise Computer Processing, fast desorption and measuring system composition.Comprise that the fast desorption system comprises sample sealable tank and broken sample platform.Gland bonnet is arranged at sealable tank top, and the stirring piece is arranged in the sealable tank.Sealable tank is connected with draft tube and gas outlet, and gas outlet connects measuring system.Sealable tank is fixed on the platform.The fast desorption system comprises graduated cylinder and water bottle, and the top of graduated cylinder connects gas outlet, and the bottom of graduated cylinder connects water bottle by wireway.Can pulverize and test coal core sample, gather the coal-bed gas content data.
Summary of the invention
The objective of the invention is: a kind of shale gas coal-seam gas portable tester is provided, be used in vapor tight tank, pulverizing, can avoid the oxidation of sample contact outside air, can accelerate gas bearing shale and coal petrography desorb again simultaneously, and be convenient to move and carry, be fit to field condition and use.
The technical solution used in the present invention is: shale gas coal-seam gas portable tester comprises casing, case lid, hinge, panel, top board, base plate, frequency-conversion alternating current motor, stainless steel cylindrical tube, spring and vapor tight tank.Casing and case lid are cuboid, and case lid is relative with casing and be hinged by hinge, form a cuboid case; It is characterized in that: secured in parallel has a base plate at the bottom of bottom and the case in casing, at the panel that is fixed with suitable for reading of casing; Plane and vertical base plate are fixed with cylindrical tube on base plate, and evenly distributing also on the top of cylindrical tube, vertical cylindrical tube end face is welded with spring; Top at spring is fixed with top board; Panel has circular port, and top board is on the top of panel.The bottom of vapor tight tank is welded on the top board on the plane, and frequency-conversion alternating current motor housing (stator) top is fixed on the lower plane of top board, and frequency-conversion alternating current motor is in cylindrical tube.
Column is the cylinder bodily form, and the top of column is vertically welded on the lower plane of top board, column be evenly distributed on frequency-conversion alternating current motor around, play the effect on protection motor top.The two ends up and down of spring by welding manner respectively with the ground of top board be connected above the stainless steel cylindrical tube.The frequency-conversion alternating current motor model is Siemens 1LG0.
Supply socket is by lead and city 220V, and the alternating current of 50-60Hz links to each other.Supply socket is connected with switch by lead, switch is connected with timer with power light by lead, timer is connected with the frequency adjustment instrument by lead, and the frequency adjustment instrument is connected with frequency converter by lead, and frequency converter is connected with frequency-conversion alternating current motor by lead.
Sample pulverization principle: during use, energized is set required vibration frequency and vibrations time by frequency adjustment instrument and timer, turns on the power switch, power light brightens, and frequency converter can start frequency-conversion alternating current motor according to frequency adjustment instrument setpoint frequency automatically and produce vibrations.Promptly when frequency-conversion alternating current motor inserts three-phase alternating-current supply, the threephase stator winding flows through the three-phase mmf (stator rotation mmf) of three-phase symmetrical current generation and produces rotating magnetic field, this rotating magnetic field has relative cutting movement with rotor conductor, according to electromagnetic induction principle, rotor conductor produces induction electromotive force and produces induction current.According to the electromagnetic force law, the rotor conductor of current-carrying is subjected to the electromagnetic force effect in magnetic field, form electromagnetic torque, the rotation of driving rotor, in the process of rotor rotation, because motor connects as one by welding manner and top board, and top board links together by welding and spring, and motor will produce dither in this case.Motor oscillating will drive the vibration that the vapor tight tank on top board top produces same frequency.The vibrations meeting is delivered to fixedly on the vapor tight tank by spring, and vapor tight tank is a container that holds sample with cover, and high-frequency vibration can make the sample in the vapor tight tank collide mutually, reaches purpose broken, that pulverize, and the gas snap-out release that is adsorbed in the sample is come out.In order to accelerate fragmentation, to pulverize the sample in the vapor tight tank, steel ball is arranged in vapor tight tank.
The instrument placement hole is arranged on panel.Power light, frequency adjustment instrument, timer, power switch and supply socket are fixed in the instrument placement hole on the panel.Frequency converter is fixed on the last plane of base plate.
Described timer is a digital instrument, and range of control is between 1 second to 99 hours 59 minutes 59 seconds.
The long 500mm of described cabinet exterior, wide 400mm, high 400mm, the long 500mm of the outer wall of case lid, wide 400mm, high 100mm.
Beneficial effect of the present invention: shale gas coal-seam gas portable tester of the present invention, be used for coal seam, shale air content test experiments, the sealing that both had been used for experimentation coal petrography and shale sample is pulverized, avoid oxidation by air, by sebific duct gas outlet is connected with the buret with scale, utilize the gas that discharges after buret can be collected coal petrography or shale sample powder, realize the fast measuring of coal petrography and shale air content; And product is convenient to move and carry, and is easy to use, is particularly useful for the field condition experiment.
Description of drawings
Fig. 1 is the diagrammatic cross-section of shale gas coal-seam gas portable tester.
Fig. 2 is a shale gas coal-seam gas portable tester side view.
Fig. 3 shale gas coal-seam gas portable tester axle side synoptic diagram.
Among the figure, 1-casing, 2-frequency-conversion alternating current motor, 3-stainless steel cylindrical tube, the 4-spring, 5-column, 6-top board, 7-vapor tight tank, the 8-gas outlet, 9-base plate, 10-frequency converter, the 11-case lid, 12-frequency adjustment instrument, 13-timer, the 14-air hole, 15-supply socket, 16-power switch, the 17-hinge, 18-power light, 19-panel.
Embodiment
Embodiment 1: with a shale gas coal-seam gas portable tester is example, and the present invention is described in further detail.
Consult Fig. 1.Shale gas coal-seam gas portable tester of the present invention mainly comprises casing 1, frequency-conversion alternating current motor 2, stainless steel cylindrical tube 3, spring 4, column 5, top board 6, vapor tight tank 7, gas outlet 8, base plate 9, frequency converter 10, case lid 11, frequency adjustment instrument 12, timer 13, air hole 14, supply socket 15, power switch 16, hinge 17, power light 18, panel 19.Wherein, outer minister 500mm, wide 400mm of the casing of casing 1, high 400mm.High-strength PVC plastic box, PVC plastics case lid, casing 1 and case lid 11 adopt the polyvinyl plate of material to make; The length and width of case lid 11 is consistent with casing 1, and height can be 100mm, is overlying on casing 1 top in mode such as hinged, and casing 1 and case lid 2 are the PVC plastic material.Identical coal petrography of two nested structures or shale sample comminution apparatus are arranged in the casing 1, and structure is:
Secured in parallel has a base plate 9 at the bottom of bottom and the case in casing 1, at the panel 19 that is fixed with suitable for reading of casing 1; Plane and vertical base plate 9 are fixed with stainless cylindrical tube 3 on base plate 9, and evenly distributing also on the top of cylindrical tube 3, vertical cylindrical tube 3 end faces are welded with four helical springs 4; Be fixed with circular top plate 6 on the top of spring 4; Panel 19 has circular port, and top board 6 is on the top of panel 19.The jar back welding of vapor tight tank 7 is connected on the top board 6 on the plane, and it is the steel ball of 12mm that two diameters are arranged in vapor tight tank 7, the gas outlet 8 that it is 3mm that the top of vapor tight tank 7 is fixed with an internal diameter.Frequency-conversion alternating current motor 2 housing tops are welded on the lower plane of top board 6, and frequency-conversion alternating current motor 2 is in cylindrical tube 3.Frequency-conversion alternating current motor 2 models are Siemens 1LG0, and there is sale in market.Six cylinder bodily form column 5 diameter 6mm, the top of column 5 is vertically welded on the lower plane of top board 6, six columns 5 be evenly distributed on frequency-conversion alternating current motor 2 around.
Consult Fig. 3.Supply socket 15 is connected with switch 16 by lead, switch 16 is connected with timer 13 with power light 18 by lead, timer 13 is connected with frequency adjustment instrument 12 by lead, frequency adjustment instrument 12 is connected with frequency converter 10 by lead, and frequency converter 10 is connected with frequency-conversion alternating current motor 2 by lead; The instrument placement hole is arranged on panel 19, and power light 18, frequency adjustment instrument 12, timer 13, power switch 16 and supply socket 15 are fixed in the instrument placement hole on the panel 19; Frequency converter 10 is fixed on the last plane of base plate 9.
The use of summary shale gas coal-seam gas portable tester.Consult Fig. 1, open case lid 11 earlier, case lid 11 can open to horizontal level, can place various experimental apparatuss with case lid 11 as an experiment porch, simultaneously power lead is inserted in the supply socket 15.Open vapor tight tank 7, put into coal petrography or shale sample, put into 2 stainless steel balls simultaneously, tighten the loam cake of vapor tight tank 7, then regulating frequency regulation meter 12, timer 13 predetermined frequencies and time, turn on the power switch 16, energized, power light 18 lights, vapor tight tank 7 shakes with the frequency that is provided with under the drive of frequency-conversion alternating current motor 2, steel ball and vapor tight tank 7 coal petrographys or shale sample bump in the vapor tight tank 7, thus realization is to the quick fragmentation of coal petrography or shale sample; If contain gas in shale and the coal petrography, can measure gas by the graduated buret of air hole 8 connecting bands.When the time of presetting reached, frequency-conversion alternating current motor 2 was shut down, and treated that vapor tight tank 7 no longer behind the vertical tremor, takes off vapor tight tank 7, opened the loam cake of vapor tight tank 7, poured out coal petrography or shale sample powder after the pulverizing, was used for other experiment test.So far, experiment finishes, and powered-down 16 switches cut out case lid 11.
Claims (6)
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| CN201010621116A CN102109428B (en) | 2010-12-24 | 2010-12-24 | Portable tester for shale gas and coal bed gas |
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| CN201010621116A CN102109428B (en) | 2010-12-24 | 2010-12-24 | Portable tester for shale gas and coal bed gas |
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| 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 |
| CN103728184A (en) * | 2012-10-16 | 2014-04-16 | 中国石油化工股份有限公司 | Stress-strain testing system and stress-strain testing method capable of simulating reservoir environment |
| CN103900928A (en) * | 2014-04-22 | 2014-07-02 | 中国地质大学（武汉） | Full-automatic shale gas content testing analyzer |
| CN103913398A (en) * | 2014-04-21 | 2014-07-09 | 中国石油大学(北京) | Analysis tank, detection device and detection system for shale gas content detection |
| CN104122169A (en) * | 2014-08-08 | 2014-10-29 | 中国地质大学（武汉） | Shale residual gas content testing system |
| CN105910954A (en) * | 2016-04-25 | 2016-08-31 | 成都理工大学 | Shale gas content measuring instrument |
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| WO2008048532A2 (en) * | 2006-10-13 | 2008-04-24 | Exxonmobil Upstream Research Company\ | Testing apparatus for applying a stress to a test sample |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103728184B (en) * | 2012-10-16 | 2015-12-16 | 中国石油化工股份有限公司 | The stress-strain test system of simulation reservoir environment and method of testing thereof |
| CN103728184A (en) * | 2012-10-16 | 2014-04-16 | 中国石油化工股份有限公司 | Stress-strain testing system and stress-strain testing method capable of simulating reservoir environment |
| 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 |
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| CN103913398A (en) * | 2014-04-21 | 2014-07-09 | 中国石油大学(北京) | Analysis tank, detection device and detection system for shale gas content detection |
| CN103900928A (en) * | 2014-04-22 | 2014-07-02 | 中国地质大学（武汉） | Full-automatic shale gas content testing analyzer |
| CN104122169A (en) * | 2014-08-08 | 2014-10-29 | 中国地质大学（武汉） | Shale residual gas content testing system |
| CN104122169B (en) * | 2014-08-08 | 2016-04-13 | 中国地质大学（武汉） | A kind of shale residual gas content test macro |
| CN105910954A (en) * | 2016-04-25 | 2016-08-31 | 成都理工大学 | Shale gas content measuring instrument |
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