CN102109428B - Portable tester for shale gas and coal bed gas - Google Patents

Portable tester for shale gas and coal bed gas Download PDF

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Publication number
CN102109428B
CN102109428B CN201010621116A CN201010621116A CN102109428B CN 102109428 B CN102109428 B CN 102109428B CN 201010621116 A CN201010621116 A CN 201010621116A CN 201010621116 A CN201010621116 A CN 201010621116A CN 102109428 B CN102109428 B CN 102109428B
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China
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frequency
gas
shale
coal
fixed
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CN201010621116A
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Chinese (zh)
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CN102109428A (en
Inventor
刘洪林
王红岩
闫刚
郑德温
赵群
李晓波
刘德勋
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中国石油天然气股份有限公司
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Publication of CN102109428A publication Critical patent/CN102109428A/en
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Abstract

The invention relates to a portable tester for shale gas and coal bed gas, which is applied to the test of content of the coal bed gas and the shale gas. A bottom plate is fixed on the lower part in a box body and is parallel to a box bottom; a panel is fixed at an upper opening of the box body; a cylindrical barrel is fixed on the upper plane of the bottom plate and is vertical to the bottom plate; springs are uniformly distributed and welded and fixed on the top of the cylindrical barrel and are vertical to the end face of the cylindrical barrel; a top plate is fixed on the tops of the springs; the panel is provided with a round hole; the top plate is arranged on the upper part of the panel; the bottom of a closed tank is welded on the upper plane of the top plate; the top of a variable frequency alternating current motor is welded on the lower plane of the top plate; and the variable frequency alternating current motor is arranged in the cylindrical barrel. The invention has the advantages that: the portable tester is used for hermetically grinding a coal and shale sample in the experiment process and prevents the sample from being oxidized by air, an exhaust pipe is connected with a burette with scales through a rubber pipe, gas released after the coal or shale sample is ground into powder can be collected by the burette, and the gas content of coal and shale is quickly tested.

Description

Shale gas coal-seam gas portable tester

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; Basically do not have 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, and 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, need be with gassiness coal petrography and the shale sample single isolated vapor tight tank of packing 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; Through the wireway, plastic lined piping and the sealable tank internal communication that terminate 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, through 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;

The sample nature desorb of 2, placing owing to vapor tight tank, the desorption experiment cycle is long, and data can not in time provide for producing the field staff, influence the evaluation to 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 appearance 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 through 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 the field condition use.

The technical scheme that the present invention adopts 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 and casing are hinged relatively and through 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 through 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 used 220V through lead and city, and the alternating current of 50-60Hz links to each other.Supply socket is connected with switch through lead; Switch is connected with timer with power light through lead; Timer is connected with the frequency adjustment instrument through lead, and the frequency adjustment instrument is connected with frequency converter through lead, and frequency converter is connected with frequency-conversion alternating current motor through lead.

Sample pulverization principle: during use; Energized is set required vibration frequency and vibrations time through 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 and rotor conductor have relative cutting movement; 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 receives the electromagnetic force effect in magnetic field, form electromagnetic torque, drives the rotor rotation; In the process of rotor rotation; Because motor connects as one through welding manner and top board, and top board links together through 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 through 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 each other, 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, and avoids oxidation by air, through 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, 4-spring; The 5-column, 6-top board, 7-vapor tight tank, 8-gas outlet, 9-base plate; The 10-frequency converter, 11-case lid, 12-frequency adjustment instrument, 13-timer, 14-air hole; The 15-supply socket, 16-power switch, 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 done further explain.

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, the outer minister 500mm of the casing of casing 1, wide 400mm, high 400mm.High-strength PVC plastic box, PVC plastics case lid, casing 1 and case lid 11 adopt the polyvinyl plate of material to process; The length and width of case lid 11 is consistent with casing 1, and height can be 100mm, is overlying on casing 1 top with mode such as hinged, and casing 1 is the PVC plastic material with case lid 2.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 through lead; Switch 16 is connected with timer 13 with power light 18 through lead; Timer 13 is connected with frequency adjustment instrument 12 through lead; Frequency adjustment instrument 12 is connected with frequency converter 10 through lead, and frequency converter 10 is connected with frequency-conversion alternating current motor 2 through 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 realize quick fragmentation to coal petrography or shale sample; If contain gas in shale and the coal petrography, can measure gas through 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)

1. a shale gas coal-seam gas portable tester comprises casing (1), case lid (11), hinge (17), panel (19), top board (6), base plate (9), frequency-conversion alternating current motor (2), stainless steel cylindrical tube (3), spring (4) and vapor tight tank (7); Casing (1) and case lid (11) are cuboid, and case lid (11) relatively also is hinged through hinge (17) with casing (1), forms a cuboid case; It is characterized in that: 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); Last plane and vertical base plate (9) at base plate (9) are fixed with cylindrical tube (3), and evenly distributing also on the top of cylindrical tube (3), vertical cylindrical tube (3) end face is welded with spring (4); Be fixed with top board (6) on the top of spring (4); Panel (19) has circular port, and top board (6) is on the top of panel (19); The bottom of vapor tight tank (7) is welded on top board (6) and goes up on the plane, and frequency-conversion alternating current motor (2) housing top is fixed on the lower plane of top board (6), and frequency-conversion alternating current motor (2) is in cylindrical tube (3).
2. shale gas coal-seam gas portable tester according to claim 1 is characterized in that: column (5) is the cylinder bodily form, and the top of column (5) is vertically welded on the lower plane of top board (6), column (5) be evenly distributed on frequency-conversion alternating current motor (2) around.
3. shale gas coal-seam gas portable tester according to claim 1 is characterized in that: frequency-conversion alternating current motor (2) model is Siemens 1LG0.
4. according to claim 1,2 or 3 described shale gas coal-seam gas portable testers; It is characterized in that: supply socket (15) is connected with switch (16) through lead; Switch (16) is connected with timer (13) with power light (18) through lead; Timer (13) is connected with frequency adjustment instrument (12) through lead, and frequency adjustment instrument (12) is connected with frequency converter (10) through lead, and frequency converter (10) is connected with frequency-conversion alternating current motor (2) through lead; On panel (19), the instrument placement hole is arranged, 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).
5. according to claim 1,2 or 3 described shale gas coal-seam gas portable testers, it is characterized in that: the long 500mm of described casing (1) outer wall, wide 400mm, high 400mm, the long 500mm of outer wall of case lid (11), wide 400mm, high 100mm.
6. according to claim 1,2 or 3 described shale gas coal-seam gas portable testers, it is characterized in that: in vapor tight tank (7), steel ball is arranged.
CN201010621116A 2010-12-24 2010-12-24 Portable tester for shale gas and coal bed gas CN102109428B (en)

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Application Number Priority Date Filing Date Title
CN201010621116A CN102109428B (en) 2010-12-24 2010-12-24 Portable tester for shale gas and coal bed gas

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Application Number Priority Date Filing Date Title
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CN102109428B true CN102109428B (en) 2012-10-17

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
CN103913398B (en) * 2014-04-21 2016-04-20 中国石油大学(北京) Mud shale air content detects with resolving tank, pick-up unit and detection system
CN103900928B (en) * 2014-04-22 2014-11-19 中国地质大学(武汉) Full-automatic shale gas content testing analyzer
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008048532A2 (en) * 2006-10-13 2008-04-24 Exxonmobil Upstream Research Company\ Testing apparatus for applying a stress to a test sample
CN201273902Y (en) * 2008-09-18 2009-07-15 中国石油天然气股份有限公司 Constant temperature simulating apparatus for coal seam reservoirs
CN201909732U (en) * 2010-12-24 2011-07-27 中国石油天然气股份有限公司 Portable tester of shale gas and coal bed gas

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008048532A2 (en) * 2006-10-13 2008-04-24 Exxonmobil Upstream Research Company\ Testing apparatus for applying a stress to a test sample
CN201273902Y (en) * 2008-09-18 2009-07-15 中国石油天然气股份有限公司 Constant temperature simulating apparatus for coal seam reservoirs
CN201909732U (en) * 2010-12-24 2011-07-27 中国石油天然气股份有限公司 Portable tester of shale gas and coal bed gas

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