CN107764656A - Coal and rock gas-liquid two-phase fluid medium conducts fracturing analogue experiment installation and method - Google Patents
Coal and rock gas-liquid two-phase fluid medium conducts fracturing analogue experiment installation and method Download PDFInfo
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- CN107764656A CN107764656A CN201711159717.0A CN201711159717A CN107764656A CN 107764656 A CN107764656 A CN 107764656A CN 201711159717 A CN201711159717 A CN 201711159717A CN 107764656 A CN107764656 A CN 107764656A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0062—Crack or flaws
- G01N2203/0066—Propagation of crack
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0258—Non axial, i.e. the forces not being applied along an axis of symmetry of the specimen
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0658—Indicating or recording means; Sensing means using acoustic or ultrasonic detectors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0694—Temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention discloses a kind of coal and rock gas-liquid two-phase fluid medium conduction fracturing analogue experiment installation and method, the device, which includes coal and rock experiment porch, fluid liquid medium conduction fracturing mechanism and gaseous state transmission of fluid medium, to be caused to split mechanism；The method comprising the steps of：First, prefabricated cube analog simulation coal and rock；2nd, coal and rock experiment porch is built；3rd, liquid medium conduction fracturing；4th, the formation of the cube analog simulation coal and rock of solid-liquid coupling state；5th, gaseous medium conduction fracturing；6th, the renewal of coal and rock experiment porch；7th, multiple circulation step two obtains conduction fracturing data caused by the different unit consumption amounts of explosive are loaded in the drilling of the different pressures parameter of injection liquid and the cube analog simulation coal and rock of solid-liquid coupling state to step 6.The present invention can be analyzed coal and rock liquid medium actually to be simulated by analog simulation coal and rock and conduct the influence that caused gaseous medium in fracturing and blasting process conducts fracturing, simple to operate, directly perceived effective.
Description
Technical field
The invention belongs to coal and rock gas-liquid two-phase fluid medium to conduct fracturing technical field, and in particular to a kind of coal and rock gas
Gas-liquid two-phase liquid medium conducts fracturing analogue experiment installation and method.
Background technology
The method of coal and rock fracturing mainly has：Blast cracking, hydrofracturing be used for improving the caving ability of coal and rock, change more
It is apt to permeability and reduces the stress concentration in coal and rock subrange or realize overhead caving etc..But coal and rock is as a kind of
There is non-homogeneous, the noncontinuity body the defects of substantial amounts of joint fissure, crackle, water filling fracturing and impregnation process blast are with answering
The propagation of Reeb wherein is sufficiently complex.Existing coal and rock fracturing simply studies coupling fracturing conceptual design, lacks to coupling
The practical operation and research of the influence of gas On Crack Propagation caused by liquid and explosion during fracturing.Therefore, nowadays lack
A kind of few coal and rock gas-liquid two-phase fluid medium conduction fracturing analogue experiment installation and method, it is to liquid in hydraulic fracturing process
How to spread and blasting process in caused gas be how to propagate study.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that provide a kind of coal and rock gas
Gas-liquid two-phase liquid medium conducts fracturing analogue experiment installation, and it is novel in design rationally, can be analyzed by analog simulation coal and rock real
The influence of caused gaseous medium conduction fracturing, operation in border coal and rock liquid medium conduction fracturing to be simulated and blasting process
Simply, it is directly perceived effective, it is easy to promote the use of.
In order to solve the above technical problems, the technical solution adopted by the present invention is：Coal and rock gas-liquid two-phase fluid medium conducts
Fracturing analogue experiment installation, it is characterised in that：Including coal and rock experiment porch, fluid liquid medium conduction fracturing mechanism and gaseous state
Transmission of fluid medium causes to split mechanism, and the coal and rock experiment porch includes computer, experimental box and the phase being arranged in experimental box
Like simulation coal and rock, it is mounted on being used to apply stressed cylinder to analog simulation coal and rock in the side wall and top plate of experimental box,
Cylinder is controlled by cylinder actuator by computer, and analog simulation coal and rock is cube analog simulation coal and rock, described cube
It is laid with the marginal position of body analog simulation coal and rock multiple for monitoring cube analog simulation coal and rock Crack Extension feelings
The acoustic emission sensor of condition, pre-plugged has Data Detection layer, described cube of body phase in the cube analog simulation coal and rock
Drilling is inwardly offered at top center like simulation coal and rock vertically, Data Detection layer includes symmetrical around drill center
The multiple sensor clusters set, sensor cluster are sensed by the fluid liquid medium conduction fracturing mechanism to described vertical
Cube analog simulation coal and rock is conducted the pressure sensor of pressure caused by fracturing and passed for detecting the gaseous fluid medium
Cause to split temperature sensor composition of the mechanism to temperature caused by cube analog simulation coal and rock conduction fracturing, pressure passes
Sensor, temperature sensor and acoustic emission sensor enter row data communication with computer；
The fluid liquid medium conduction fracturing mechanism includes injecting liquid into drilling and for adjusting the liquid pressure
The filling machine of force parameter, the liquid are the colored liquid different from the cube analog simulation coal and rock color, filling machine
Communicated with computer；
The gaseous fluid medium conduction fracturing mechanism includes the detonation of the explosive, the detonation explosive loaded into drilling
The thermal infrared imager of device and the situation for gathering the cube analog simulation coal and rock blasting fume Spreading and diffusion, infrared heat
As instrument is communicated with computer；
It is connected with computer for setting cranny development after fluid liquid medium conduction fracturing transfer mechanism fracturing
The timer of time, for prompt the sufficient prompting device of experimenter's cranny development and for show gas-liquid two-phase fluid medium pass
Cause the display of Crack Extension situation split.
Above-mentioned coal and rock gas-liquid two-phase fluid medium conduction fracturing analogue experiment installation, it is characterised in that：The sound hair
The quantity for penetrating sensor is six, and six acoustic emission sensors are respectively the first acoustic emission sensor, the second sound emission biography
Sensor, the 3rd acoustic emission sensor, falling tone emission sensor, fifth sound emission sensor and the 6th acoustic emission sensor, the
One acoustic emission sensor and the second acoustic emission sensor are separately mounted to the cube analog simulation coal and rock bottom surface and front side
At two vertex positions of the intersection edges in face, the 3rd acoustic emission sensor is arranged on the cube analog simulation coal and rock bottom surface
At the point midway of the intersection edges of trailing flank, falling tone emission sensor is arranged on the cube analog simulation coal and rock top
At the point midway of the intersection edges of face and leading flank, fifth sound emission sensor and the 6th acoustic emission sensor are separately mounted to institute
State at two vertex positions of the intersection edges of cube analog simulation coal and rock top surface and trailing flank.
Above-mentioned coal and rock gas-liquid two-phase fluid medium conduction fracturing analogue experiment installation, it is characterised in that：The data
The number of plies of detection layers is multilayer.
Above-mentioned coal and rock gas-liquid two-phase fluid medium conduction fracturing analogue experiment installation, it is characterised in that：The drilling
Depth be 0.2h~0.8h, wherein, h be the cube analog simulation coal and rock the length of side.
Above-mentioned coal and rock gas-liquid two-phase fluid medium conduction fracturing analogue experiment installation, it is characterised in that：The prompting
Device is indicator lamp or wireless communication module.
Above-mentioned coal and rock gas-liquid two-phase fluid medium conduction fracturing analogue experiment installation, it is characterised in that：It is described wireless
Communication module is the gsm module or short message cat module with experimenter's mobile communication.
Above-mentioned coal and rock gas-liquid two-phase fluid medium conduction fracturing analogue experiment installation, it is characterised in that：Described cube
The quantity of body analog simulation coal and rock is multiple.
Meanwhile the invention also discloses liquid during a kind of simple, reasonable in design, the achievable coupling fracturing of method and step
With explosion caused by gas On Crack Propagation influence coal and rock gas-liquid two-phase fluid medium conduction fracturing simulated experiment side
Method, it is characterised in that this method comprises the following steps：
Step 1: prefabricated cube analog simulation coal and rock：According to the physical characteristic of coal and rock actually to be simulated, utilize
Analog simulation method injects preformed material into cubic container, and cube analog simulation coal and rock is established after conserving the t times, and
During cube analog simulation coal and rock is established, Data Detection layer is buried in cube analog simulation coal and rock,
Drilling is inwardly opened up vertically at the top center of cube analog simulation coal and rock；
The quantity of the cubic container, can prefabricated multiple cube analog simulation coal and rocks simultaneously to be multiple；
Step 2: coal and rock experiment porch is built, process is as follows：
Step 201, a cube analog simulation coal and rock is taken to be placed in experimental box, profit is computerizedd control gas
Multiple cylinders that cylinder driver makes to install in the side wall and top plate of experimental box apply to the cube analog simulation coal and rock presses
Power, pressure of the simulation actually coal and rock to be simulated by environment rock mass；
Step 202, laying is multiple for monitoring cube at the marginal position of the cube analog simulation coal and rock
The acoustic emission sensor of analog simulation coal and rock Crack Extension situation, the quantity of the acoustic emission sensor is six, six institutes
It is respectively the first acoustic emission sensor, the second acoustic emission sensor, the 3rd acoustic emission sensor, the falling tone to state acoustic emission sensor
Emission sensor, fifth sound emission sensor and the 6th acoustic emission sensor, the first acoustic emission sensor and the second sound emission pass
Sensor is separately mounted at two vertex positions of the intersection edges of the cube analog simulation coal and rock bottom surface and leading flank, the
Three acoustic emission sensors are arranged at the point midway of the intersection edges of the cube analog simulation coal and rock bottom surface and trailing flank,
Falling tone emission sensor is arranged on the point midway of the intersection edges of the cube analog simulation coal and rock top surface and leading flank
Place, fifth sound emission sensor and the 6th acoustic emission sensor be separately mounted to the cube analog simulation coal and rock top surface and
At two vertex positions of the intersection edges of trailing flank, cube body phase described in six acoustic emission sensor gamut real-time detections
Like simulation coal and rock internal fissure situation；
Step 203, Data Detection layer and acoustic emission sensor be connected with computer, realize Data Detection layer and sound emission
Sensor communicates with the data of computer, completes building for coal and rock experiment porch；
Step 3: liquid medium conducts fracturing：By filling machine adjust injection liquid pressure parameter, using filling machine to
Injection liquid in drilling, until the fluid seepage of injection goes out the cube analog simulation coal and rock or the fluid pressure drop of injection
Low, the liquid is the colored liquid different from the cube analog simulation coal and rock color, while establishes filling machine and meter
The communication of calculation machine；
Step 4: the formation of the cube analog simulation coal and rock of solid-liquid coupling state：Pass through described cube of timer setting
The time threshold that stands after body analog simulation coal and rock injection liquid, during using timer, when the cube analog simulation
When time of repose reaches the time threshold of timer setting after coal and rock injection liquid, computer control prompting device prompting experiment people
Member's time of repose is completed, and is realized that liquid medium conducts reaching full growth for the crack of fracturing, is obtained cube body phase of solid-liquid coupling state
Like simulation coal and rock；
Step 5: gaseous medium conducts fracturing：Filled out in drilling to the cube analog simulation coal and rock of solid-liquid coupling state
Blasting charge, it is vertical to divide equally the cube analog simulation coal and rock for cutting solid-liquid coupling state using the initiator detonation explosive, adopt
The cavity of the cube analog simulation coal and rock for the solid-liquid coupling state cut after explosion is carried out respectively with two thermal infrared imagers
Scanning, obtain gas temperature Distribution Value in the cavity, and the Temperature Distribution value obtained after thermal infrared imager is scanned transmit to
Computer, the temperature data that computer is gathered using Temperature Distribution value and temperature sensor, draws temperature profile, obtains explosion
When conduction fracturing data of the gas in the cube analog simulation coal and rock of solid-liquid coupling state, while the colored liquid of observable exists
Direction, depth and scope in the cube analog simulation coal and rock crackle of solid-liquid coupling state；
Step 6: the renewal of coal and rock experiment porch：Acoustic emission sensor is dismantled, computer control cylinder actuator makes gas
Cylinder is retracted, and removes the residue of the cube analog simulation coal and rock of solid-liquid coupling state in experimental box；
Step 7: repeatedly circulation step two obtains the different pressures parameter and solid-liquid coupling state for injecting liquid to step 6
Cube analog simulation coal and rock drilling in load explosive different unit consumption amounts caused by conduction fracturing data.
Above-mentioned method, it is characterised in that：In step 1 during cube analog simulation coal and rock is established, vertical
Three layer data detection layers are uniformly buried in cube analog simulation coal and rock.
The present invention has advantages below compared with prior art：
1st, the analogue experiment installation that uses of the present invention is in the side wall of experimental box and top plate by being respectively provided with cylinder, for
Analog simulation coal and rock applies pressure, is easy to simulate surrounding rock body pressure suffered by actual coal and rock, analog simulation coal and rock is interior
The cube analog simulation coal and rock of Data Detection layer is put, is made simply, Data Detection layer around drill center by being symmetrical arranged
Multiple sensor clusters composition, measurement cube analog simulation coal and rock is pressurized and temperature change is uniform, is easy to promote the use of.
2nd, the analogue experiment installation that the present invention uses, by modulating the band different from cube analog simulation coal and rock color
In color liquid injection cube analog simulation coal and rock, it is easy to the later stage to cut the observation hydraulic fracturing of cube analog simulation coal and rock
During liquid how to spread；By loading explosive in the cube analog simulation coal and rock of solid-liquid coupling state, utilize
The cube analog simulation coal and rock implosion of thermal infrared imager and the temperature sensor measurement solid-liquid coupling state pre-set is broken once
How gas caused by journey is propagated；In addition, sound emission is set to pass at the marginal position of cube analog simulation coal and rock
Sensor, propagation direction, expansion depth and the spreading range of comprehensive detection crackle, reliable and stable, using effect is good.
3rd, the analogue experiment method that uses of the present invention, step is simple, by prefabricated multiple cube analog simulation coal and rocks,
For each cube analog simulation coal and rock adjust different liquid injection pressure and formation solid-liquid coupling state it is vertical
Change different explosive specific charge amounts in cube analog simulation coal and rock, obtain liquid filling pressure and explosive load parameter to solid-liquid coupling
The Crack Extension data of the cube analog simulation coal and rock of state, are easy to promote the use of.
In summary, the present invention is novel in design rationally, and coal petrography actually to be simulated can be analyzed by analog simulation coal and rock
Body liquid medium conducts the influence of caused gaseous medium conduction fracturing in fracturing and blasting process, simple to operate, directly perceived effective,
It is easy to promote the use of.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation of coal and rock experiment porch in the analogue experiment installation that the present invention uses.
Fig. 2 is Fig. 1 A-A sectional views.
Fig. 3 is analog simulation coal and rock and the installation relation of acoustic emission sensor in the analogue experiment installation that the present invention uses
Schematic diagram.
Fig. 4 is the circuit theory diagrams for the analogue experiment installation that the present invention uses.
Fig. 5 is the FB(flow block) for the analogue experiment method that the present invention uses.
Description of reference numerals:
1-experimental box；2-analog simulation coal and rock；3-cylinder；
4-acoustic emission sensor；The acoustic emission sensors of 4-1-first；
The acoustic emission sensors of 4-2-second；The acoustic emission sensors of 4-3-the 3rd；
4-4-falling tone emission sensor；4-5-fifth sound emission sensor；
The acoustic emission sensors of 4-6-the 6th；5-Data Detection layer；
6-drilling；7-sensor cluster；7-1-pressure sensor；
7-2-temperature sensor；8-computer；9-timer；
10-prompting device；11-display；12-filling machine；
13-cylinder actuator；14-thermal infrared imager.
Embodiment
As shown in Figures 1 to 4, coal and rock gas-liquid two-phase fluid medium conduction fracturing simulated experiment dress of the present invention
Put, including coal and rock experiment porch, fluid liquid medium conduction fracturing mechanism and gaseous state transmission of fluid medium cause to split mechanism, it is described
Coal and rock experiment porch includes computer 8, experimental box 1 and the analog simulation coal and rock 2 being arranged in experimental box 1, experimental box 1
It is mounted on being used to apply stressed cylinder 3 to analog simulation coal and rock 2 in side wall and top plate, cylinder 3 passes through cylinder actuator
13 are controlled by computer 8, and analog simulation coal and rock 2 is cube analog simulation coal and rock, the cube analog simulation coal petrography
Multiple voice sending sensors for being used to monitor cube analog simulation coal and rock Crack Extension situation are laid with the marginal position of body
Device 4, pre-plugged has Data Detection layer 5, the cube analog simulation coal and rock in the cube analog simulation coal and rock
Top center at inwardly offer drilling 6 vertically, Data Detection layer 5 is included around the more of 6 center symmetric settings of drilling
Individual sensor cluster 7, sensor cluster 7 are sensed by the fluid liquid medium and conduct fracturing mechanism to described cube of body phase
The pressure sensor 7-1 of pressure and caused like caused by simulation coal and rock conduction fracturing for detecting gaseous fluid medium conduction
Split mechanism to form the temperature sensor 7-2 of temperature caused by cube analog simulation coal and rock conduction fracturing, pressure passes
Sensor 7-1, temperature sensor 7-2 and acoustic emission sensor 4 enter row data communication with computer 8；
It should be noted that the analog simulation coal similar to its physical characteristic is made according to the physical characteristic of actual coal and rock
Rock mass 2, analog simulation coal and rock 2 is arranged in experimental box 1, experimental box 1 uses explosion-proof experimental box in actual use, avoids reality
Test error and cause unnecessary destruction and loss, be respectively mounted and be used for analog simulation coal and rock 2 in the side wall and top plate of experimental box 1
The purpose for applying stressed cylinder 3 be the actual coal and rock of simulation suffered by surrounding rock body pressure, tally with the actual situation, analog simulation coal
Rock mass 2 is easy for the making of analog simulation coal and rock 2 using the purpose one of cube analog simulation coal and rock, and two are easy in advance
Data Detection layer 5 is laid, in actual use, need to downwards be opened up at the top dead center position of analog simulation coal and rock 2 and bore 6 holes, number
Laid according to detection layers 5 around 6 centrosymmetric opening position of drilling, be easy to uniform measurement experiment data, data acquisition reliability height；
In the present embodiment, the number of plies of the Data Detection layer 5 is multilayer；In actual use, according to the propagation characteristic and cube of power
The size of analog simulation coal and rock, it is not spaced 20cm~30cm and lays a layer data detection layers 5, measurement accuracy is high.
During actual use, multiple acoustic emission sensors are laid at the marginal position of the cube analog simulation coal and rock
4, for monitoring cube analog simulation coal and rock Crack Extension situation, in the present embodiment, the number of the acoustic emission sensor 4
Measure as six, six acoustic emission sensors 4 be respectively the first acoustic emission sensor 4-1, the second acoustic emission sensor 4-2,
3rd acoustic emission sensor 4-3, falling tone emission sensor 4-4, fifth sound emission sensor 4-5 and the 6th acoustic emission sensor
4-6, the first acoustic emission sensor 4-1 and the second acoustic emission sensor 4-2 are separately mounted to the cube analog simulation coal petrography
At two vertex positions of the intersection edges of body bottom surface and leading flank, the 3rd acoustic emission sensor 4-3 is arranged on cube body phase
Like at the point midway of simulation coal and rock bottom surface and the intersection edges of trailing flank, falling tone emission sensor 4-4 is arranged on described vertical
At the point midway of the intersection edges of cube analog simulation coal and rock top surface and leading flank, fifth sound emission sensor 4-5 and the 6th
Acoustic emission sensor 4-6 is separately mounted to two tops of the intersection edges of the cube analog simulation coal and rock top surface and trailing flank
Point opening position；Ensure that includes three sound on bottom surface, leading flank, top surface and the trailing flank of cube analog simulation coal and rock sends out
Sensor is penetrated, utilizes the first acoustic emission sensor 4-1, the second acoustic emission sensor 4-2 and the 3rd the sound emission biography positioned at bottom surface
Sensor 4-3 detects cube analog simulation coal and rock internal fissure data from the bottom to top, is launched using the falling tone positioned at top surface and passed
Sensor 4-4, fifth sound emission sensor 4-5 and the 6th acoustic emission sensor 4-6 from top to bottom detect cube analog simulation coal
Rock mass internal fissure data, utilize the first acoustic emission sensor 4-1 positioned at leading flank, the second acoustic emission sensor 4-2 and the 4th
Acoustic emission sensor 4-4 detects cube analog simulation coal and rock internal fissure data from front to back, using positioned at the of trailing flank
Three acoustic emission sensor 4-3, fifth sound emission sensor 4-5 and the 6th acoustic emission sensor 4-6 are by rear to preceding detection cube
Analog simulation coal and rock internal fissure data, realize it is comprehensive to cube analog simulation coal and rock carry out crack detection, using six
The purpose one of the individual acoustic emission sensor 4 is the wasting of resources for avoiding the use for causing unnecessary acoustic emission sensor 4 from bringing, and is increased
Addition sheet, while increase the complexity of data processing；Second, cube analog simulation coal and rock is carried out in order to ensure comprehensive
Crack detection, Effect on Detecting are good.
The fluid liquid medium conduction fracturing mechanism includes injecting liquid into drilling 6 and for adjusting the liquid pressure
The filling machine 12 of force parameter, the liquid are the colored liquid different from the cube analog simulation coal and rock color, fluid injection
Machine 12 is communicated with computer 8；
It should be noted that by modulating the colored liquid injection cube different from cube analog simulation coal and rock color
In body analog simulation coal and rock, be easy to the later stage cut liquid in cube analog simulation coal and rock observation hydraulic fracturing process be as
What diffusion.
The gaseous fluid medium conduction fracturing mechanism includes explosive, of the detonation explosive loaded into drilling 6
The thermal infrared imager 14 of quick-fried device and the situation for gathering the cube analog simulation coal and rock blasting fume Spreading and diffusion, it is red
Outer thermal imaging system 14 is communicated with computer 8；
It should be noted that by loading explosive in the cube analog simulation coal and rock of solid-liquid coupling state, utilization is red
Explosion in the cube analog simulation coal and rock of outer thermal imaging system 14 and the temperature sensor 7-2 measurement solid-liquid coupling states pre-set
How gas caused by process is propagated.
It is connected with computer 8 for setting cranny development after fluid liquid medium conduction fracturing transfer mechanism fracturing
The timer 9 of time, for prompt the sufficient prompting device 10 of experimenter's cranny development and for show gas-liquid two-phase fluid be situated between
The display 11 of the Crack Extension situation of matter conduction fracturing.
It should be noted that the purpose of connection timer 9 is to be used to set the fluid liquid medium conduction on computer 8
The cranny development time after fracturing transfer mechanism fracturing, in actual use, the alternative experimenter's manual record time of timer 9,
Avoid delaying or missing experimental period, the cube analog simulation coal and rock of solid-liquid coupling state is missed best opportunity, computer 8
The purpose of upper connection prompting device 10 is actively to prompt experimenter, and in the present embodiment, the prompting device 10 is indicator lamp or wireless
Communication module；Wherein, the wireless communication module is the gsm module or short message cat module with experimenter's mobile communication, is realized
The automatic operating of experimental provision.
In the present embodiment, the depth of the drilling 6 is 0.2h~0.8h, wherein, h is the cube analog simulation coal petrography
The length of side of body.
It should be noted that when the depth of drilling 6 is too low or too deep, explosive does not have sufficient explosive effect, easily makes
Into the failure of experiment, the depth of preferable drilling 6 uses 0.6h.
In the present embodiment, the quantity of the cube analog simulation coal and rock is multiple, meets the needs of many experiments.
A kind of method of coal and rock gas-liquid two-phase fluid medium conduction fracturing simulated experiment as shown in Figure 5, including it is following
Step：
Step 1: prefabricated cube analog simulation coal and rock：According to the physical characteristic of coal and rock actually to be simulated, utilize
Analog simulation method injects preformed material into cubic container, and cube analog simulation coal and rock is established after conserving the t times, and
During cube analog simulation coal and rock is established, Data Detection layer 5 is buried in cube analog simulation coal and rock,
Drilling 6 is inwardly opened up vertically at the top center of cube analog simulation coal and rock；
The quantity of the cubic container, can prefabricated multiple cube analog simulation coal and rocks simultaneously to be multiple；
It should be noted that by prefabricated multiple cube analog simulation coal and rocks, for each cube analog simulation
Coal and rock adjusts different liquid injection pressure and become in the cube analog simulation coal and rock of the solid-liquid coupling state of formation
Change different explosive specific charge amounts, obtain the cube analog simulation coal petrography of liquid filling pressure and explosive load parameter to solid-liquid coupling state
The Crack Extension data of body.
In the present embodiment, in step 1 during cube analog simulation coal and rock is established, in the similar mould of cube
Intend uniformly burying three layer data detection layers 5 in coal and rock, the cube analog simulation coal and rock that the selection length of side is 1m carries out real
Test.
Step 2: coal and rock experiment porch is built, process is as follows：
Step 201, take a cube analog simulation coal and rock to be placed in experimental box 1, controlled using computer 8
Cylinder actuator 13 makes multiple cylinders 3 for being installed in the side wall and top plate of experimental box 1 to the cube analog simulation coal and rock
Apply pressure, pressure of the simulation actually coal and rock to be simulated by environment rock mass；
Step 202, laying is multiple for monitoring cube at the marginal position of the cube analog simulation coal and rock
The acoustic emission sensor 4 of analog simulation coal and rock Crack Extension situation, the quantity of the acoustic emission sensor 4 is six, six
The acoustic emission sensor 4 is respectively the first acoustic emission sensor 4-1, the second acoustic emission sensor 4-2, the 3rd voice sending sensor
Device 4-3, falling tone emission sensor 4-4, fifth sound emission sensor 4-5 and the 6th acoustic emission sensor 4-6, the first sound emission
Sensor 4-1 and the second acoustic emission sensor 4-2 are separately mounted to the cube analog simulation coal and rock bottom surface and leading flank
Intersection edges two vertex positions at, the 3rd acoustic emission sensor 4-3 is arranged on the cube analog simulation coal and rock bottom
At the point midway of the intersection edges of face and trailing flank, falling tone emission sensor 4-4 is arranged on the cube analog simulation coal
At the point midway of the intersection edges of rock mass top surface and leading flank, fifth sound emission sensor 4-5 and the 6th acoustic emission sensor 4-6
It is separately mounted at two vertex positions of the intersection edges of the cube analog simulation coal and rock top surface and trailing flank, six institutes
State cube analog simulation coal and rock internal fissure situation described in the gamut real-time detection of acoustic emission sensor 4；
Step 203, Data Detection layer 5 and acoustic emission sensor 4 be connected with computer 8, realize the harmony of Data Detection layer 5
Emission sensor 4 communicates with the data of computer 8, completes building for coal and rock experiment porch；
Step 3: liquid medium conducts fracturing：The pressure parameter of injection liquid is adjusted by filling machine 12, uses filling machine
12 inject liquid into drilling 6, until the fluid seepage of injection goes out the liquid of the cube analog simulation coal and rock or injection
Pressure reduces, and the liquid is the colored liquid different from the cube analog simulation coal and rock color, while establishes fluid injection
The communication of machine 12 and computer 8；
Step 4: the formation of the cube analog simulation coal and rock of solid-liquid coupling state：Described cube is set by timer 9
The time threshold stood after body analog simulation coal and rock injection liquid, using the timing of timer 9, when the cube analog simulation
When time of repose reaches the time threshold of the setting of timer 9 after coal and rock injection liquid, computer 8 controls prompting device 10 to prompt reality
The completion of personnel's time of repose is tested, realizes that liquid medium conducts reaching full growth for the crack of fracturing, obtains cube of solid-liquid coupling state
Body analog simulation coal and rock；
Step 5: gaseous medium conducts fracturing：Filled out in drilling 6 to the cube analog simulation coal and rock of solid-liquid coupling state
Blasting charge, it is vertical to divide equally the cube analog simulation coal and rock for cutting solid-liquid coupling state using the initiator detonation explosive, adopt
The cavity of the cube analog simulation coal and rock for the solid-liquid coupling state cut after explosion is entered respectively with two thermal infrared imagers 14
Row scanning, obtains gas temperature Distribution Value in the cavity, and the Temperature Distribution value obtained after thermal infrared imager 14 is scanned passes
Computer 8 is transported to, the temperature data that computer 8 is gathered using Temperature Distribution value and temperature sensor 7-2, draws Temperature Distribution
Figure, obtains conduction fracturing data of the gas in the cube analog simulation coal and rock of solid-liquid coupling state during explosion, while considerable
Examine direction, depth and scope of the colored liquid in the cube analog simulation coal and rock crackle of solid-liquid coupling state；
It should be noted that using two thermal infrared imagers 14 respectively to the cube for the solid-liquid coupling state cut after explosion
The cavity of analog simulation coal and rock is scanned, and obtains gas temperature Distribution Value in the cavity, in practical operation, when explosion is complete
Cheng Hou, scanned at once using thermal infrared imager 14, prevent overlong time temperature decline, cause experiment error it is larger, temperature is
For representing the scope of blast influence；Different zones temperature difference means that detonation effect difference, the high explanation blast of temperature
Action effect is strong, and temperature is low to illustrate gas propagation caused by blast to weaker, the high explanation detonation stresses of temperature relatively concentration.
Step 6: the renewal of coal and rock experiment porch：Acoustic emission sensor 4 is dismantled, computer 8 controls cylinder actuator 13
Cylinder 3 is retracted, remove the residue of the cube analog simulation coal and rock of solid-liquid coupling state in experimental box 1；
Step 7: repeatedly circulation step two obtains the different pressures parameter and solid-liquid coupling state for injecting liquid to step 6
Cube analog simulation coal and rock drilling 6 in load explosive different unit consumption amounts caused by conduction fracturing data.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and the equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (9)
1. coal and rock gas-liquid two-phase fluid medium conducts fracturing analogue experiment installation, it is characterised in that：It is flat including coal and rock experiment
Platform, fluid liquid medium conduction fracturing mechanism and gaseous state transmission of fluid medium cause to split mechanism, and the coal and rock experiment porch includes
Computer (8), experimental box (1) and the analog simulation coal and rock (2) being arranged in experimental box (1), the side wall of experimental box (1) and top
It is mounted on being used to apply stressed cylinder (3) to analog simulation coal and rock (2) on plate, cylinder (3) passes through cylinder actuator
(13) controlled by computer (8), analog simulation coal and rock (2) is cube analog simulation coal and rock, the similar mould of the cube
Intend being laid with multiple sound hairs for being used to monitor cube analog simulation coal and rock Crack Extension situation at the marginal position of coal and rock
Penetrate sensor (4), pre-plugged has a Data Detection layer (5) in the cube analog simulation coal and rock, and the cube is similar
Simulate and inwardly offer drilling (6) at the top center of coal and rock vertically, Data Detection layer (5) is included around drilling (6)
Multiple sensor clusters (7) of center symmetric setting, sensor cluster (7) are sensed by the fluid liquid medium conduction and caused
Mechanism is split to the pressure sensor (7-1) of pressure caused by cube analog simulation coal and rock conduction fracturing and for detecting
Temperature of the gaseous fluid medium conduction fracturing mechanism to temperature caused by cube analog simulation coal and rock conduction fracturing
Sensor (7-2) composition is spent, pressure sensor (7-1), temperature sensor (7-2) and acoustic emission sensor (4) are and computer
(8) row data communication is entered；
The fluid liquid medium conduction fracturing mechanism includes injecting liquid into drilling (6) and for adjusting the fluid pressure
The filling machine (12) of parameter, the liquid are the colored liquid different from the cube analog simulation coal and rock color, fluid injection
Machine (12) is communicated with computer (8)；
The gaseous fluid medium conduction fracturing mechanism includes the detonation of the explosive, the detonation explosive loaded into drilling (6)
The thermal infrared imager (14) of device and the situation for gathering the cube analog simulation coal and rock blasting fume Spreading and diffusion, it is red
Outer thermal imaging system (14) is communicated with computer (8)；
When being connected with computer (8) for setting cranny development after fluid liquid medium conduction fracturing transfer mechanism fracturing
Between timer (9), for prompting the sufficient prompting device of experimenter's cranny development (10) and for showing gas-liquid two-phase fluid
The display (11) of the Crack Extension situation of medium conduction fracturing.
2. conducting fracturing analogue experiment installation according to the coal and rock gas-liquid two-phase fluid medium described in claim 1, its feature exists
In：The quantity of the acoustic emission sensor (4) is six, and six acoustic emission sensors (4) are respectively that the first sound emission passes
Sensor (4-1), the second acoustic emission sensor (4-2), the 3rd acoustic emission sensor (4-3), falling tone emission sensor (4-4),
Fifth sound emission sensor (4-5) and the 6th acoustic emission sensor (4-6), the first acoustic emission sensor (4-1) and rising tone hair
Penetrate two summits that sensor (4-2) is separately mounted to the intersection edges of the cube analog simulation coal and rock bottom surface and leading flank
Opening position, the 3rd acoustic emission sensor (4-3) are arranged on the intersecting of the cube analog simulation coal and rock bottom surface and trailing flank
At the point midway on side, falling tone emission sensor (4-4) is arranged on the cube analog simulation coal and rock top surface and front side
At the point midway of the intersection edges in face, fifth sound emission sensor (4-5) and the 6th acoustic emission sensor (4-6) are separately mounted to
At two vertex positions of the intersection edges of the cube analog simulation coal and rock top surface and trailing flank.
3. conducting fracturing analogue experiment installation according to the coal and rock gas-liquid two-phase fluid medium described in claim 1, its feature exists
In：The number of plies of the Data Detection layer (5) is multilayer.
4. conducting fracturing analogue experiment installation according to the coal and rock gas-liquid two-phase fluid medium described in claim 1, its feature exists
In：The depth of the drilling (6) is 0.2h~0.8h, wherein, h is the length of side of the cube analog simulation coal and rock.
5. conducting fracturing analogue experiment installation according to the coal and rock gas-liquid two-phase fluid medium described in claim 1, its feature exists
In：The prompting device (10) is indicator lamp or wireless communication module.
6. conducting fracturing analogue experiment installation according to the coal and rock gas-liquid two-phase fluid medium described in claim 5, its feature exists
In：The wireless communication module is the gsm module or short message cat module with experimenter's mobile communication.
7. conducting fracturing analogue experiment installation according to the coal and rock gas-liquid two-phase fluid medium described in claim 1, its feature exists
In：The quantity of the cube analog simulation coal and rock is multiple.
8. the side of coal and rock gas-liquid two-phase fluid medium conduction fracturing simulated experiment is carried out using device as claimed in claim 1
Method, it is characterised in that：This method comprises the following steps：
Step 1: prefabricated cube analog simulation coal and rock：It is similar according to the physical characteristic of coal and rock actually to be simulated, utilization
Analogy method injects preformed material into cubic container, establishes cube analog simulation coal and rock after conserving the t times, and building
During vertical cube analog simulation coal and rock, Data Detection layer (5) is buried in cube analog simulation coal and rock, vertical
Drilling (6) is inwardly opened up at the top center of cube analog simulation coal and rock vertically；
The quantity of the cubic container, can prefabricated multiple cube analog simulation coal and rocks simultaneously to be multiple；
Step 2: coal and rock experiment porch is built, process is as follows：
Step 201, take a cube analog simulation coal and rock to be placed in experimental box (1), controlled using computer (8)
Cylinder actuator (13) makes multiple cylinders (3) for being installed in the side wall and top plate of experimental box (1) to the cube analog simulation
Coal and rock applies pressure, pressure of the simulation actually coal and rock to be simulated by environment rock mass；
Step 202, laying is multiple similar for monitoring cube at the marginal position of the cube analog simulation coal and rock
The acoustic emission sensor (4) of coal and rock Crack Extension situation is simulated, the quantity of the acoustic emission sensor (4) is six, six
The acoustic emission sensor (4) is respectively the first acoustic emission sensor (4-1), the second acoustic emission sensor (4-2), the 3rd sound hair
Penetrate sensor (4-3), falling tone emission sensor (4-4), fifth sound emission sensor (4-5) and the 6th acoustic emission sensor
(4-6), the first acoustic emission sensor (4-1) and the second acoustic emission sensor (4-2) are separately mounted to the similar mould of the cube
At two vertex positions for intending the intersection edges of coal and rock bottom surface and leading flank, the 3rd acoustic emission sensor (4-3) is arranged on described
At the point midway of the intersection edges of cube analog simulation coal and rock bottom surface and trailing flank, falling tone emission sensor (4-4) peace
At the cube analog simulation coal and rock top surface and the point midway of the intersection edges of leading flank, fifth sound emission sensor
(4-5) and the 6th acoustic emission sensor (4-6) are separately mounted to the cube analog simulation coal and rock top surface and trailing flank
At two vertex positions of intersection edges, the similar mould of cube described in six acoustic emission sensor (4) gamut real-time detections
Intend coal and rock internal fissure situation；
Step 203, Data Detection layer (5) and acoustic emission sensor (4) be connected with computer (8), realize Data Detection layer (5)
Communicated with acoustic emission sensor (4) with the data of computer (8), complete building for coal and rock experiment porch；
Step 3: liquid medium conducts fracturing：The pressure parameter of injection liquid is adjusted by filling machine (12), uses filling machine
(12) injection liquid into drilling (6), until the fluid seepage of injection goes out the cube analog simulation coal and rock or injection
Fluid pressure reduces, and the liquid is the colored liquid different from the cube analog simulation coal and rock color, is established simultaneously
The communication of filling machine (12) and computer (8)；
Step 4: the formation of the cube analog simulation coal and rock of solid-liquid coupling state：The cube is set by timer (9)
The time threshold stood after analog simulation coal and rock injection liquid, using timer (9) timing, when the cube analog simulation
When time of repose reaches the time threshold of timer (9) setting after coal and rock injection liquid, computer (8) control prompting device (10)
Prompt experimenter's time of repose to complete, realize that liquid medium conducts reaching full growth for the crack of fracturing, obtain solid-liquid coupling state
Cube analog simulation coal and rock；
Step 5: gaseous medium conducts fracturing：Loaded in drilling (6) to the cube analog simulation coal and rock of solid-liquid coupling state
Explosive, it is vertical to divide equally the cube analog simulation coal and rock for cutting solid-liquid coupling state using the initiator detonation explosive, use
Two thermal infrared imagers (14) are entered to the cavity of the cube analog simulation coal and rock for the solid-liquid coupling state cut after explosion respectively
Row scanning, obtain gas temperature Distribution Value in the cavity, and the Temperature Distribution value obtained after thermal infrared imager (14) is scanned
The temperature data gathered to computer (8), computer (8) using Temperature Distribution value and temperature sensor (7-2) is transmitted, draws temperature
Distribution map is spent, obtains conduction fracturing data of the gas in the cube analog simulation coal and rock of solid-liquid coupling state during explosion, together
When direction, depth and scope of the colored liquid of observable in the cube analog simulation coal and rock crackle of solid-liquid coupling state；
Step 6: the renewal of coal and rock experiment porch：Dismantle acoustic emission sensor (4), computer (8) control cylinder actuator
(13) cylinder (3) is retracted, remove the residue of the cube analog simulation coal and rock of experimental box (1) interior solid-liquid coupling state；
Step 7: repeatedly circulation step two obtains the different pressures parameter of injection liquid and standing for solid-liquid coupling state to step 6
Conduction fracturing data caused by the different unit consumption amounts of explosive are loaded in the drilling (6) of cube analog simulation coal and rock.
9. in accordance with the method for claim 8, it is characterised in that：Cube analog simulation coal and rock is being established in step 1
During, three layer data detection layers (5) are uniformly buried in cube analog simulation coal and rock.
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