CN106290784A - A kind of acid-rock reaction list rock beam board slit simulation apparatus and method of work thereof - Google Patents
A kind of acid-rock reaction list rock beam board slit simulation apparatus and method of work thereof Download PDFInfo
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Abstract
The present invention relates to a kind of acid-rock reaction list rock beam board slit simulation apparatus and method of work thereof.Described acid-rock reaction list rock beam board slit simulation apparatus core is visual flat plate model, and described visual flat plate model includes stitching plate corrosion clamper, support, microscope, rotary apparatus etc..The present invention also provides for the method for work of described acid-rock reaction list rock beam board slit simulation apparatus.Compact overall structure of the present invention, there is stronger bearing capacity, the present invention can realize simulating the fracture acidizing situation at Different Strata inclination angle (0～90 °) by rotary apparatus, and the present invention can realize dynamically observing the growth of earthworm hole, extension situation, and earthworm hole race condition.
Description
Technical field
The present invention relates to a kind of acid-rock reaction list rock beam board slit simulation apparatus and method of work thereof, belong to oil-gas reservoir volume increase and arrange
The technical field executed.
Background technology
Acidifying is as developing low-porosity, the technical measures of low-permeability carbonate oil reservoir now, it is possible to effectively
Release pollution and the blocking of near wellbore reservoir, improve the connectedness of pit shaft and reservoir, recover or improve oil and gas production.Acidifying
In, face corrosion, earthworm hole and homogeneous corrosion, face corrosion and two kinds of situations of homogeneous corrosion can be divided into disappear by corrosion form acid etching result
Consumption acid solution is many, and flow conductivity is poor；Earthworm hole is a kind of corrosion passage with high flow conductivity, forms earthworm hole consumption acid solution few, changes
Make effective.The corrosion form formed during Carbonate acidizing depends primarily on H+Mass transfer velocity and surface response speed.
Produce face corrosion when mass transfer velocity is less than surface response speed, otherwise produce uniform corrosion, only when mass transfer velocity is close to table
Earthworm hole can be produced during the response speed of face.And mass transfer velocity and surface response speed are respectively by acid solution injection rate and acid strength
Impact.The quantitative test in earthworm hole and the basis that analysis is acidifying acid fracturing method minute design, therefore to earthworm hole growth rate
Carry out with acid solution consumption calculating, earthworm pore morphology and race condition being described, have important for improving acidizing treatment effect
Meaning.
The outer research to earthworm hole of Present Domestic, based on empirical or semiempirical type, establishes a series of model and comes earthworm hole
Distribution is described, and the evaluation to earthworm hole is mainly realized by a series of dimensionless numbers, such as Dai Mukele number Da, pendant Klatt
Number Pe etc., describe the main reference Buijse processing method for earthworm leading edge opening fltting speed to earthworm hole growth rate；And thing
Mould is tested then based on rock core displacement test, finds optimum injection rate by calculating breakthrough volume.This rock core displacement
Experimental technique carrys out the various injection rates of simulated field by changing infusion speed, and analysis is acidified result accordingly.But rock core
Displacement test has some limitations: the impact of (1) boundary effect is strong.Rock core displacement test can only be a less size
Upper simulation acidization, and carbonate rock anisotropism is strong, acidifying forms earthworm pore volume and easily breaks through on sidewall, to the experiment gathered
Data produce error；(2) bearing capacity is poor, poor sealing.After pressure raises, at pipeline interface, acid solution can occur acid
Liquid leaks the phenomenon of even splash, thus causes the failure of an experiment and safety to be easily subject to threaten；(3) experimentation is in and seals completely
In the environment closed, the most not visible, by experimental data, experimentation can only be derived and can not directly observe；(4) mould
The method intending formation temperature is to whole driving device spacial temperature elevation, makes troubles to the operation in the middle of experiment and inspection.
Chinese patent literature CN104407103B discloses a kind of multi-angle acid corrosion fracture test device, including
Connection in series-parallel acid etching injected system and flow conductivity test system, also include diversion chamber's model system, and for loading diversion chamber
Clossing pressure loading system, and control the back pressure control system of diversion chamber outlet pressure, the gas of diversion chamber is emptied
Vacuum system, to corrosion after core surface carry out morphological analysis scanner and data handling system.The present invention is from little yardstick
The angle of simulation seam is simulated the evaluation of fracture guide after the acid etching of seam and acid etching, and fracturing fluid, acid solution are carried out spiral
Coil pipe shearing simulation and rheology testing.Simulating lab test by acid corrosion fracture evaluating apparatus, it is possible to right
The various major influence factors of acid corrosion fracture is simulated, and finds out optimal technological parameter, simultaneously can be at this dress
Put and carry out the simulation research of various raising acid corrosion fracture new technology New Measure.
Present Domestic progressively starts with the construction of flat board experimental simulation formation acidizing, and board device used has two kinds, a kind of
Rock beam as disclosed in above-mentioned Chinese patent literature CN104407103B, rock beam size is less, only 64.5cm2, boundary effect
Impact has certain weakening, but is substantially only used for the test of flow conductivity, can dash forward in the earthworm hole formed on same rock beam
Broken, can not explain well for earthworm hole race condition, earthworm hole growing state also cannot be viewed directly simultaneously；Another kind of
Rock beam size used by flat plate model is relatively big, reduces earthworm hole and breaks through to the probability of lateral edges, solves boundary effect impact, simultaneously
Device has preferable bearing capacity, but still suffers from following problem: (1) still suffers from the problem of visual difference, between two rock beams
Space is less, is difficult to effectively dynamically observe experiment by the video camera of side, and the growth rate in earthworm hole cannot be direct
Calculate, and the competition existed between earthworm hole also cannot effectively be analyzed, main earthworm hole, secondary earthworm hole and the dead respective growth in earthworm hole
Situation cannot be by visual record；(2) rock beam processing difficulties, experiment rock beam size is too big but does not has ready-made process equipment, leads
Cause experimental group number less, illustrative experiment can only be carried out.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of acid-rock reaction list rock beam board slit simulation apparatus；
Present invention also offers the method for work of said apparatus.
The technical scheme is that
A kind of acid-rock reaction list rock beam board slit simulation apparatus, including injected system, pre-heating system, entrance detecting system, can
Depending on flat plate model, outlet detecting system, condenser, back pressure system, Mead-Bauer recovery system and data handling system；Described injection is
System, described pre-heating system, described entrance detecting system, described visual flat plate model, described outlet detecting system, described back pressure system
System, described condenser, described Mead-Bauer recovery system are the most through；
Described injected system provides for described single rock beam board slit simulation apparatus to be injected power and regulates the speed injecting acid solution；
Described entrance detecting system is for gathering the pressure of described visual flat plate model arrival end fluid, temperature, flow；Described preheating system
The acid solution of injection is preheating to requirement of experiment temperature by system；Described visual flat plate model is for dynamically observing the acid solution flowing in crack
Situation also provides the structure of a kind of acid-rock reaction simulated under different parameters；Described outlet detecting system be used for gathering described visually
The pressure of flat plate model port of export fluid, temperature, flow；Described condenser is by the condensation cooling of high temperature waste liquid；Described back pressure system
For controlling described visual flat plate model port of export back pressure, keep back pressure constant at requirement of experiment numerical value；Described devil liquor recovery system
System is for Recycling of waste liquid；Described data handling system for arrange calculate collect described visual flat plate model arrival end,
Port of export experimental data.
According to currently preferred, described visual flat plate model includes stitching plate corrosion clamper, support, microscope, described
Seam plate corrosion clamper is arranged on the bracket, and described seam plate corrosion clamper top is provided with described microscope.For single rock
Earthworm hole is observed in plate experiment extend and race condition.
According to currently preferred, described seam plate corrosion clamper includes casing, transparency glass plate, T-shaped piston, thick line pipe
Interface, the two sides of described casing are communicated with the thick line interface tube to described casing, be provided with described T-shaped and live in described casing
Plug, one end of described T-shaped piston is arranged in described casing, and described casing top is provided with described transparency glass plate；
Described T-shaped piston includes piston main body, rock beam, rubber pallet, liquid chambers, fluid injection pipeline, sets in described T-shaped piston
Described liquid chambers, described liquid chambers top is had to be provided with the described rubber pallet fixing with described T-shaped piston, on described rubber pallet
Fixing described rock beam, described rock beam is provided with described transparency glass plate, and described rock beam surface is provided with scale, is used for directly reading earthworm
Hole length, described liquid chambers bottom connects described fluid injection pipeline.It is described rock beam by pumping into high-temp liquid to described liquid chambers
Confined pressure is provided and provides experiment temperature required.
According to currently preferred, described support being additionally provided with rotary apparatus, described rotary apparatus includes two rotary shafts,
One end of described rotary shaft connects described support, and the other end embeds described casing by keyway；Rotarily driving of described rotary shaft
Described casing 0-90 ° rotation.
According to currently preferred, the span of the length of described casing is respectively 500-800mm, 300-
500mm、300-400mm；The span of the length of described rock beam is respectively 200-400mm, 100-300mm, 5-15mm.
It is further preferred that the span of the length of described casing is respectively 800mm, 400mm, 350mm；Described
The span of the length of rock beam is respectively 300mm, 200mm, 10mm.
According to currently preferred, described entrance detecting system connects described casing by extra heavy pipe line, to prevent common tube
Line flexural deformation and can not be in close contact with rock beam；Described extra heavy pipe line connects described extra heavy pipe line interface, and described extra heavy pipe line internal diameter is
5mm, external diameter is 60mm, and described visual flat plate model top is provided with gas atmospheric valve, is used for adjusting described acid-rock reaction list rock beam
Pressure balance in board slit simulation apparatus.Described liquid chambers surface scribbles heat-barrier material.By pumping into high-temperature liquid to described liquid chambers
Body provides confined pressure for rock beam and provides experiment temperature required.
According to currently preferred, described injected system includes that intermediate receptacle, acid-proof pump, described intermediate receptacle pass through valve
Connect described acid-proof pump；
Described pre-heating system includes preheating coil pipe, temperature monitor, and described preheating coil pipe includes helical heating pipe and is enclosed within
Muff on described helical heating pipe, described helical heating pipe connects described temperature monitor；The connection of described acid-proof pump is described
Preheating coil pipe；
Described entrance detecting system includes inlet flow rate meter, inlet pressure transducer, inlet temperature detector, described preheating
Coil pipe connects described inlet flow rate meter, and described inlet flow rate meter connects the arrival end of described visual flat plate model, institute by valve
State inlet pressure transducer, the arrival end of the described inlet temperature detector described visual flat plate model of connection；
Described outlet detecting system includes rate of discharge meter, outlet pressure sensor, outlet temperature detector, described visually
The port of export of flat plate model connects described outlet pressure sensor, described outlet temperature detector；
Described back pressure system includes back-pressure valve, back pressure container, back pressure meter and backpressure pump, the outlet of described visual flat plate model
End is respectively communicated with described back pressure container, described backpressure pump by described back-pressure valve；
Described Mead-Bauer recovery system includes gas-liquid separator, waste liquid tank；Described back-pressure valve, described gas-liquid separator, described
Rate of discharge meter, described condenser, described waste liquid tank are sequentially communicated, and described gas-liquid separator connects described outlet stream by valve
Gauge.
Described data handling system includes that acquisition controlling processes software, industrial computer, printer, switch board.Described collection is controlled
System processes software and runs under Win7 or Win10 environment, uses VB programming.
The method of work of above-mentioned acid-rock reaction list rock beam board slit simulation apparatus, concrete steps include:
(1) choose formation rock, i.e. carbonate rock, described formation rock is processed into described rock beam, load seam plate corrosion
Clamper, connects acid-rock reaction list rock beam board slit simulation apparatus, and opens described data handling system；
(2) open gas atmospheric valve, adjust pressure balance in acid-rock reaction list rock beam board slit simulation apparatus, close gas and put
Empty valve；
(3) configuration quality concentration is the acid solution of 0～37%, pours in described intermediate receptacle；Open described preheating coil pipe, will
Temperature is adjusted to 20～120 DEG C；Open described back pressure system, the back pressure of 0～8MPa is set；Open described inlet flow rate meter, institute
State inlet pressure transducer, described inlet temperature detector, described rate of discharge meter, described outlet pressure sensor, described in go out
Mouth temperature monitor, described condenser, described microscope；
(4) arranging injection rate is 0～1.5L/h, opens described acid-proof pump, is held in the middle of described by described acid-proof pump
Acid solution in device pumps into described preheating coil pipe successively, pumps into described visual flat plate model；
(5) by described inlet flow rate meter, described inlet pressure transducer, described inlet temperature detector Real-time Collection institute
State the flow of visual flat plate model arrival end fluid, pressure, temperature, sensed by described rate of discharge meter, described outlet pressure
Described in device, described outlet temperature detector Real-time Collection, the visual flow of flat plate model port of export fluid, pressure, temperature, pass through
The growth of described microscope Real-time Collection earthworm hole, earthworm hole and the pictorial information of earthworm hole competition；
(6) data step (5) gathered and pictorial information transmission, to described data handling system, obtain earthworm hole growth speed
Earthworm hole race condition is also analyzed by rate, the real time data of rock beam permeability variation.
The invention have the benefit that
1, rock beam size of the present invention, scale are less, it is simple to dismount and repeat experiment.The present invention is enterprising at existing instrument
Row improves, and makes overall structure more compact, has higher bearing capacity, can bear lab space internal pressure and reach 7MPa.
2, the present invention has filled up existing board device and can not carry out the blank of single rock beam acid-rock reaction experiment.
3, the present invention can realize simulating the fracture acidizing situation at Different Strata inclination angle (0～90 °) by rotary apparatus.
4, the present invention can realize dynamically observing the growth of earthworm hole, extension situation, and earthworm hole race condition.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of acid-rock reaction list rock beam board slit simulation apparatus of the present invention；
Fig. 2 is the structural representation one of the visual flat plate model of the present invention；
Fig. 3 is the structural representation two of the visual flat plate model of the present invention；
Fig. 4 is the structural representation one that the present invention stitches plate corrosion clamper；
Fig. 5 is the structural representation two that the present invention stitches plate corrosion clamper.
Fig. 6 is the structural representation of inventive piston；
Fig. 7 is the structural representation of rubber pallet of the present invention；
1, intermediate receptacle, 2, acid-proof pump, 3, preheating coil pipe, 4, inlet flow rate meter, 5, inlet pressure transducer, 6, entrance temperature
Degree detector, 7, visual flat plate model, 8, outlet pressure sensor, 9, outlet temperature detector, 10, rate of discharge meter, 11, return
Pressure valve, 12, back pressure container, 13, back pressure meter, 14, backpressure pump, 15, gas-liquid separator, 16, condenser, 17, waste liquid tank, 18, gas
Body atmospheric valve, 19, data handling system, 20, support, 21, microscope, 22, casing, 23, transparency glass plate, 24, T-shaped piston,
25, thick line interface tube, 26, piston main body, 27, rock beam, 28, rubber pallet, 29, liquid chambers, 30, fluid injection pipeline, 31, rotate
Axle, 32, keyway, 33, scale.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, the present invention is further qualified, but is not limited to this.
Embodiment 1
A kind of acid-rock reaction list rock beam board slit simulation apparatus, as it is shown in figure 1, include that injected system, pre-heating system, entrance are examined
Examining system, visual flat plate model 7, outlet detecting system, condenser 16, back pressure system, Mead-Bauer recovery system and data process system
System 19；Injected system, pre-heating system, entrance detecting system, visual flat plate model, outlet detecting system 7, back pressure system, condensation
Device 16, Mead-Bauer recovery system are the most through；
Injected system provides for single rock beam board slit simulation apparatus to be injected power and regulates the speed injecting acid solution；Entrance detects
System is for gathering the pressure of described visual flat plate model 7 arrival end fluid, temperature, flow；The acid solution that pre-heating system will inject
It is preheating to requirement of experiment temperature；Visual flat plate model 7 is for dynamically observing the acid solution mobility status in crack and providing a kind of mould
The structure of the acid-rock reaction under plan different parameters；Outlet detecting system is for gathering the pressure of visual flat plate model 7 port of export fluid
Power, temperature, flow；Condenser 16 is by the condensation cooling of high temperature waste liquid；Back pressure system is used for controlling visual flat plate model 7 port of export and returns
Pressure, keeps back pressure constant at requirement of experiment numerical value；Mead-Bauer recovery system is used for Recycling of waste liquid；Data handling system 19 is used for arranging
Calculate the arrival end of visual flat plate model 7, the port of export experimental data collected.Pipe valve system is used for connecting and controlling each
System, including injected system, pre-heating system, entrance detecting system, visual flat plate model 7, outlet detecting system, condenser 16,
Back pressure system, Mead-Bauer recovery system and data handling system 19.
Visual flat plate model 7 includes stitching plate corrosion clamper, support 20, microscope 21, and seam plate corrosion clamper is arranged on
On support 20, seam plate corrosion clamper top is provided with microscope 21.In single rock beam experiment, observe earthworm hole extend and competition feelings
Condition.
Seam plate corrosion clamper as shown in Figure 2,3, connects including casing 22, transparency glass plate 23, T-shaped piston 24, thick line pipe
Mouth 25, the two sides of casing 22 are communicated with the thick line interface tube 25 to casing 22, are provided with T-shaped piston 24, T-shaped in casing 22
One end of piston 24 is arranged in casing 22, and casing 22 top is provided with transparency glass plate 23；
T-shaped piston 24 includes piston main body 26, rock beam 27, rubber pallet 28, liquid chambers 29, fluid injection pipeline 30, T-shaped piston
Being provided with liquid chambers 29 in 26, liquid chambers 29 top is provided with and the fixing rubber pallet 28 of T-shaped piston 24, fixing on rubber pallet 28
Rock beam 27, rock beam 27 is provided with transparency glass plate 23, and rock beam 27 surface is provided with scale 33, is used for directly reading earthworm hole length, liquid
Body cavity 29 bottom connection fluid injection pipeline 30.There is provided confined pressure for rock beam 27 by pumping into high-temp liquid to liquid chambers 29 and experiment is provided
Temperature required.
Being additionally provided with rotary apparatus on support 20, rotary apparatus includes two rotary shafts 31, and one end of rotary shaft 31 connects props up
Frame 20, the other end embeds casing 22 by keyway 32；The casing 22 that rotarily drives of rotary shaft 31 rotates 0-90 °.
The value of the length of casing 22 is respectively 800mm, 400mm, 350mm；The value of the length of rock beam 27
It is respectively 300mm, 200mm, 10mm.
Entrance detecting system connects casing 22 by extra heavy pipe line, with prevent common tube line flexural deformation and can not be with rock beam 27
It is in close contact；Extra heavy pipe line connects extra heavy pipe line interface 25, and extra heavy pipe line internal diameter is 5mm, and external diameter is 60mm, visual flat plate model 7 top
It is provided with gas atmospheric valve 18.Pressure balance in adjusting acid-rock reaction list rock beam board slit simulation apparatus.Liquid chambers 29 surface is coated with
There is heat-barrier material.There is provided confined pressure for rock beam 27 by pumping into high-temp liquid to liquid chambers 29 and provide experiment temperature required.
Injected system includes that intermediate receptacle 1, acid-proof pump 2, intermediate receptacle 1 connect acid-proof pump 2 by valve；Acid-proof pump 2
Maximum stream flow is 1L/h, maximum injection pressure 10MPa, and pump head endoporus uses F4 substrate, and plunger uses Hastelloy, acid-proof pump 2
Flow-rate adjustment use converter regulation, flow may be implemented in operation room and remotely controls.The volume of intermediate receptacle 1 is 2L,
Use plastic tank container.
Pre-heating system includes preheating coil pipe 3, temperature monitor, and preheating coil pipe 3 includes helical heating pipe and is enclosed within spiral and adds
Muff on heat pipe, helical heating pipe connects temperature monitor；Acid-proof pump 2 connection preheating coil pipe 3；Preheating coil pipe 3 temperature control essence
Degree is for ± 0.5 DEG C.
Entrance detecting system includes inlet flow rate meter 4, inlet pressure transducer 5, inlet temperature detector 6, preheats coil pipe 3
Connection inlet flow rate meter 4, inlet flow rate meter 4 connects the arrival end of visual flat plate model 7 by valve, inlet pressure transducer 5,
Inlet temperature detector 6 connects the arrival end of visual flat plate model 7；
Outlet detecting system includes rate of discharge meter 10, outlet pressure sensor 8, outlet temperature detector 9, visual flat board
The port of export connection outlet pressure transducer 8 of model 7, outlet temperature detector 9；
Inlet pressure transducer 5 and outlet pressure sensor 8 range are 10MPa, and precision is 0.1%FS, subsidiary pressure
Digital display secondary meter.Pressure digital display secondary meter is four and half, band RS232 interface, can realize and computer networking.
Corrosion resistant acid and alkali-resistance full tetrafluoro effusion meter all selected by inlet flow rate meter 4 and rate of discharge meter 10, and pipe diameter is Φ
5mm, flow 1.5L/h, operating pressure 0～10MPa, rise matter temperature :-10 °～180 °, degree of accuracy is ± 0.5%, shell material
For rustless steel, power supply: interior power supply 3v, dispatch from foreign news agency 5v～24v, output signal is pulse signal 4～20mA.
Inlet temperature detector 6 and outlet temperature detector 9 detection range are room temperature～120 DEG C, temperature-controlled precision ± 0.5
DEG C, band RS232 interface, the networking with computer can be realized.
Back pressure system includes back-pressure valve 11, back pressure container 12, back pressure meter 13 and backpressure pump 14, going out of visual flat plate model 7
Mouth end is respectively communicated with back pressure container 12, backpressure pump 14 by back-pressure valve 11；
Mead-Bauer recovery system includes gas-liquid separator 15, waste liquid tank 17；Back-pressure valve 11, gas-liquid separator 15, rate of discharge
Meter 10, condenser 16, waste liquid tank 17 are sequentially communicated, and gas-liquid separator 15 connects rate of discharge meter 10 by valve.Waste liquid tank 17
Volume is 50L, uses Plastic Drum.Condenser 16 uses coil pipe type helical structure, additional cool circulation water nested structure.
Pipe valve system includes all of extra heavy pipe line and valve.Extra heavy pipe line external diameter is 5mm.Valve maximum pressure-bearing is 7MPa.
Valve uses Hastelloy, can bear the acid and alkali corrosion under operating temperature.
Embodiment 2
The method of work of acid-rock reaction list rock beam board slit simulation apparatus described in embodiment 1, concrete steps include:
(1) choose formation rock, i.e. carbonate rock, formation rock be processed into rock beam 27, load seam plate corrosion clamper,
Connect acid-rock reaction list rock beam board slit simulation apparatus, and open data handling system 19；
(2) open gas atmospheric valve 18, adjust pressure balance in acid-rock reaction list rock beam board slit simulation apparatus, close gas
Atmospheric valve 18；
(3) configuration quality concentration is the acid solution of 18%, pours in intermediate receptacle 1；Open preheating coil pipe 3, temperature is adjusted
It it is 70 DEG C；Open back pressure system, the back pressure of 4Mpa is set；Open inlet flow rate meter 4, inlet pressure transducer 5, inlet temperature inspection
Survey instrument 6, rate of discharge meter 10, outlet pressure sensor 8, outlet temperature detector 9, condenser 16, microscope 21；
(4) arranging injection rate is 0.75L/h, opens acid-proof pump 2, the acid solution in intermediate receptacle 1 is depended on by acid-proof pump 2
Secondary pumping into preheats coil pipe 3, pumps into visual flat plate model 7；
(5) by inlet flow rate meter 4, inlet pressure transducer 5, inlet temperature detector 6 Real-time Collection visual flat board mould
The flow of type 7 arrival end fluid, pressure, temperature, by rate of discharge meter 10, outlet pressure sensor 8, outlet temperature detector
The flow of 9 Real-time Collection visual flat plate model 7 port of export fluids, pressure, temperature, raw by microscope 21 Real-time Collection earthworm hole
Length, earthworm hole and the pictorial information of earthworm hole competition；
(6) data step (5) gathered and pictorial information transmit to data handling system 19, obtain earthworm hole growth speed
Earthworm hole race condition is also analyzed by rate, the real time data of rock beam permeability variation.
Claims (9)
1. an acid-rock reaction list rock beam board slit simulation apparatus, it is characterised in that include that injected system, pre-heating system, entrance are examined
Examining system, visual flat plate model, outlet detecting system, condenser, back pressure system, Mead-Bauer recovery system and data handling system；
Described injected system, described pre-heating system, described entrance detecting system, described visual flat plate model, described outlet detecting system,
Described back pressure system, described condenser, described Mead-Bauer recovery system are the most through；
Described injected system provides for described single rock beam board slit simulation apparatus to be injected power and regulates the speed injecting acid solution；Described
Entrance detecting system is for gathering the pressure of described visual flat plate model arrival end fluid, temperature, flow；Described pre-heating system will
The acid solution injected is preheating to requirement of experiment temperature；Described visual flat plate model is for dynamically observing the acid solution mobility status in crack
And the structure of a kind of acid-rock reaction simulated under different parameters is provided；Described outlet detecting system is used for gathering described visual flat board
The pressure of mold exit end fluid, temperature, flow；Described condenser is by the condensation cooling of high temperature waste liquid；Described back pressure system is used for
Control described visual flat plate model port of export back pressure, keep back pressure constant at requirement of experiment numerical value；Described Mead-Bauer recovery system is used
In Recycling of waste liquid；Described data handling system calculates, for arranging, the arrival end of described visual flat plate model, the outlet collected
End experimental data.
A kind of acid-rock reaction list rock beam board slit simulation apparatus the most according to claim 1, it is characterised in that described visual flat
Slab includes stitching plate corrosion clamper, support, microscope, and described seam plate corrosion clamper is arranged on the bracket, described
Seam plate corrosion clamper top is provided with described microscope.
A kind of acid-rock reaction list rock beam board slit simulation apparatus the most according to claim 2, it is characterised in that described seam plate is rotten
Erosion clamper includes casing, transparency glass plate, T-shaped piston, thick line interface tube, and the two sides of described casing are communicated with to described
Thick line interface tube in casing, is provided with described T-shaped piston in described casing, one end of described T-shaped piston is arranged on described casing
In, described casing top is provided with described transparency glass plate；
Described T-shaped piston includes piston main body, rock beam, rubber pallet, liquid chambers, fluid injection pipeline, is provided with institute in described T-shaped piston
Stating liquid chambers, described liquid chambers top is provided with the described rubber pallet fixing with described T-shaped piston, fixing on described rubber pallet
Described rock beam, described rock beam is provided with described transparency glass plate, and described rock beam surface is provided with scale, and described liquid chambers bottom connects
Described fluid injection pipeline.
A kind of acid-rock reaction list rock beam board slit simulation apparatus the most according to claim 3, it is characterised in that on described support
Being additionally provided with rotary apparatus, described rotary apparatus includes two rotary shafts, and one end of described rotary shaft connects described support, the other end
Described casing is embedded by keyway；Described rotary shaft rotarily drive described casing 0-90 ° rotation.
A kind of acid-rock reaction list rock beam board slit simulation apparatus the most according to claim 4, it is characterised in that described casing
The span of length is respectively 500-800mm, 300-500mm, 300-400mm；Taking of the length of described rock beam
Value scope is respectively 200-400mm, 100-300mm, 5-15mm.
A kind of acid-rock reaction list rock beam board slit simulation apparatus the most according to claim 5, it is characterised in that described casing
The span of length is respectively 800mm, 400mm, 350mm；The span of the length of described rock beam is respectively
300mm、200mm、10mm。
A kind of acid-rock reaction list rock beam board slit simulation apparatus the most according to claim 6, it is characterised in that described entrance is examined
Examining system connects described casing by extra heavy pipe line, and described extra heavy pipe line connects described extra heavy pipe line interface, and described extra heavy pipe line internal diameter is
5mm, external diameter is 60mm, and described visual flat plate model top is provided with gas atmospheric valve, and described liquid chambers surface scribbles heat-barrier material.
A kind of acid-rock reaction list rock beam board slit simulation apparatus the most according to claim 7, it is characterised in that described injection system
System includes that intermediate receptacle, acid-proof pump, described intermediate receptacle connect described acid-proof pump by valve；
Described pre-heating system includes preheating coil pipe, temperature monitor, and described preheating coil pipe includes helical heating pipe and is enclosed within described
Muff on helical heating pipe, described helical heating pipe connects described temperature monitor；Described acid-proof pump connects described preheating
Coil pipe；
Described entrance detecting system includes inlet flow rate meter, inlet pressure transducer, inlet temperature detector, described preheating coil pipe
Connecting described inlet flow rate meter, described inlet flow rate meter connects the arrival end of described visual flat plate model by valve, described in enter
Mouth pressure sensor, described inlet temperature detector connect the arrival end of described visual flat plate model；
Described outlet detecting system includes rate of discharge meter, outlet pressure sensor, outlet temperature detector, described visual flat board
The port of export of model connects described outlet pressure sensor, described outlet temperature detector；
Described back pressure system includes back-pressure valve, back pressure container, back pressure meter and backpressure pump, and the port of export of described visual flat plate model leads to
Cross described back-pressure valve and be respectively communicated with described back pressure container, described backpressure pump；
Described Mead-Bauer recovery system includes gas-liquid separator, waste liquid tank；Described back-pressure valve, described gas-liquid separator, described outlet
Effusion meter, described condenser, described waste liquid tank are sequentially communicated, and described gas-liquid separator connects described rate of discharge by valve
Meter.
9. the method for work of a kind of acid-rock reaction list rock beam board slit simulation apparatus described in claim 8, it is characterised in that concrete
Step includes:
(1) choose formation rock, i.e. carbonate rock, described formation rock is processed into described rock beam, load seam plate corrosion clamping
Device, connects acid-rock reaction list rock beam board slit simulation apparatus, and opens described data handling system；
(2) open gas atmospheric valve, adjust pressure balance in acid-rock reaction list rock beam board slit simulation apparatus, close gas emptying
Valve；
(3) configuration quality concentration is the acid solution of 0～37%, pours in described intermediate receptacle；Open described preheating coil pipe, by temperature
It is adjusted to 20～120 DEG C；Open described back pressure system, the back pressure of 0～8MPa is set；Open described inlet flow rate meter, described in enter
Mouth pressure sensor, described inlet temperature detector, described rate of discharge meter, described outlet pressure sensor, described outlet temperature
Degree detector, described condenser, described microscope；
(4) arranging injection rate is 0～1.5L/h, opens described acid-proof pump, by described acid-proof pump by described intermediate receptacle
Acid solution pump into described preheating coil pipe successively, pump into described visual flat plate model；
(5) by can described in described inlet flow rate meter, described inlet pressure transducer, described inlet temperature detector Real-time Collection
Depending on the flow of flat plate model arrival end fluid, pressure, temperature, by described rate of discharge meter, described outlet pressure sensor, institute
State the visual flow of flat plate model port of export fluid, pressure, temperature described in outlet temperature detector Real-time Collection, by described aobvious
The growth of micro mirror Real-time Collection earthworm hole, earthworm hole and the pictorial information of earthworm hole competition；
(6) data step (5) gathered and pictorial information transmission to described data handling system, obtain earthworm hole growth rate,
Earthworm hole race condition is also analyzed by the real time data of rock beam permeability variation.
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