CN107084914A - A kind of Fracture Networks two phase flow experimental provision and method - Google Patents
A kind of Fracture Networks two phase flow experimental provision and method Download PDFInfo
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- CN107084914A CN107084914A CN201710432090.5A CN201710432090A CN107084914A CN 107084914 A CN107084914 A CN 107084914A CN 201710432090 A CN201710432090 A CN 201710432090A CN 107084914 A CN107084914 A CN 107084914A
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- 230000005514 two-phase flow Effects 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 149
- 238000000465 moulding Methods 0.000 claims abstract description 86
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 235000019198 oils Nutrition 0.000 claims abstract description 28
- 238000002474 experimental method Methods 0.000 claims abstract description 23
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 19
- 235000019476 oil-water mixture Nutrition 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 229920006397 acrylic thermoplastic Polymers 0.000 claims description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 4
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 3
- 241001455273 Tetrapoda Species 0.000 claims description 2
- 238000009530 blood pressure measurement Methods 0.000 claims description 2
- 239000008358 core component Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010079 rubber tapping Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 6
- 239000011435 rock Substances 0.000 description 13
- 238000011160 research Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 5
- 230000007306 turnover Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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- 238000003325 tomography Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
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Abstract
The invention discloses a kind of Fracture Networks two phase flow experimental provision and method, it is related to Geotechnical Engineering measuring instrument field.The device includes a set of Fracture Networks model, a set of Fracture Networks model mounting table, two sets of fluid feed systems, a set of oil-water separation system and a set of signal acquiring system.Fracture Networks model is made using transparent acrylic.Model mounting table is the adjustable porous plate of levelness.Moulding system is made up of air compressor machine and moulding system casing, wherein there is two sub- casings in moulding system casing, and one is that, for stream case, one is collection box, and two sub- bottom halves are separated by, and top is communicated.The design of oil water separator can both reduce oil water mixture arbitrarily pollution of the discharge to environment, can realize that profit is recycled again.Signal acquiring system is made up of difference gauge, pressure sensor and high-definition camera.The present invention is designed for Fracture Networks, the related experiment for realizing Fracture Networks two phase flow that can be reliable and stable, with stronger practical value.
Description
Technical field
The present invention relates to Geotechnical Engineering measuring instrument field, more particularly to a kind of Fracture Networks two phase flow experimental provision and side
Method.It can be used to detect and study of rocks Fracture Networks two-phase properties of flow.
Background technology
In recent years, with the exploitation of underground energy, the processing of nuke rubbish, CO2Geological storage, underground oil storage, gas storage etc.
The construction of heavy construction, rock mass two-phase flow problem increasingly causes extensive concern.Because of geological structure, existed in rock mass various
The discontinuity surface of various kinds, such as material interface, tomography, weak intercalated layer, joint, crack etc..Generally, these discontinuity surfaces are constituted
The seepage channel of underground fluid so that the hydraulic properties of fissuted medium are different from porous media.Currently, on crack rock two
Mutually the research of stream is the correlation theory for using for reference porous media mostly, but this method can not reflect the two phase flow of fissuted medium well
Characteristic.Therefore, from this material character of crack rock, using Single Fracture face, fracture network in the means research rock mass of experiment
Network two-phase properties of flow is understanding, understands the key of crack rock two phase flow, is also to set up suitable crack rock two phase flow mathematics
Model and then the basis for effectively predicting crack rock two-phase Flow Behavior.
In existing technology, China Patent No. discloses a kind of " crack for CN201510906972.1 patent of invention
Rock mass two phase flow visual experimental apparatus ".But the major function of the device is the flow process of two phase flow in eye slit rock mass
With interface change, it is impossible to measure the size of Fluid pressure and distribution in fissure-plane.These parameters are for crack rock fissure-plane two
Mutually the research of stream is equally very important.Chih-Ying Chen are in its thesis for the doctorate (Chih-Ying Chen.Liquid-
Gas Relative Permeabilities in Fractures:Effects of Flow Structures, Phase
Transformation and Surface Roughness [D] .Stanford University, Califonia, 2004.)
A set of experimental provision studied for Single Fracture face two phase flow is proposed, but the device can only pass through flow control and monitoring fluid
Flow in and out.In many actual conditions, the turnover of Stress control fluid is also very common.In the research of crack rock two phase flow
In, especially for the research of oil-water two phase flow, the processing of oil water mixture is also vital, is allowed to that ring can be reached
Guaranteed request can efficiently utilize experiment material again.
Up to now, one can record two phase flow process in real time, effectively measure observation station pressure changing
, it can not only be passed in and out by flow control but also by Stress control fluid, while oil water mixture can be handled effectively
General Fracture Networks two phase flow experimental provision has not been reported.
The content of the invention
Technical problem present in view of the aforementioned technical background, the invention provides a kind of general Fracture Networks two phase flow
Experimental provision and method, the need for meeting to Fracture Networks two phase flow research work.
A kind of Fracture Networks two phase flow experimental provision, the device includes a set of Fracture Networks model, a set of model of fissuration and put
Put platform, two sets of fluid feed systems, a set of oil-water separation system and a set of signal acquiring system.
Fracture Networks model 1 is made by two block size identical transparent acrylics, one piece of acrylic wherein
Fracture Networks are carved with plate, are then bonded it with another piece of transparent acrylic board by acrylic board special glue.
Each crack exit of Fracture Networks model 1 is mounted on crack outlet conversion head, crack outlet conversion head connection fracture network
Network model 1 and conduit.
It is provided with the bottom of Fracture Networks model 1 in multiple pressure tap 1d, each pressure tap 1d and is disposed with hydraulic pressure sensing
Device 2, hydraulic pressure sensor 2 is connected with computer 18, passes through the pressure at hydraulic pressure sensor 2 in real time record monitoring pressure tap 1d positions
Size variation situation.
Fracture Networks model 1 is placed on model of fissuration mounting table 3.The top of model of fissuration mounting table 3 is the porous knot of copper
Structure plate 3a.Copper loose structure plate 3a tetrapod is respectively provided with a height-adjustable screw rod 3b, screw rod 3b and crack mould
The bottom support bracket 3c of type mounting table 3 is connected.Copper loose structure plate 3a level is split by the knob adjustment on rotary screw 3b
Degree.
The both sides of Fracture Networks model 1 are provided with two sets of fluid moulding systems.Often set fluid moulding system include check valve 5,
Fluid diverter 6, electronic flowmeter 7, flow control valve 8, moulding system casing, pressure gauge 11, relief valve 12, air compressor
13 and conduit.Wherein, moulding system casing is the core component of fluid moulding system.Often cover the moulding system of fluid moulding system
Casing is constituted by two sub- casings, and one of them sub- casing supply fluid outflow is referred to as stream case, and another sub- casing is returned
Receive fluid and be referred to as collection box.The bottom of two sub- casings is separated by, and top is communicated.The moulding system case of two sets of fluid moulding systems
Body internal structure is identical.
The moulding system casing of two sets of fluid moulding systems is respectively moulding system casing a9 and moulding system casing b10,
Two sub- casings in moulding system casing 9 are sealed by same closure a9c, and the He of pressure gauge 11 is housed at the top of closure a9c
Relief valve 12.The pressure acting as in regulation, display fluid feed system casing a9 of pressure gauge 11 and relief valve 12.
Moulding system casing a9 two sub- casings are respectively for stream case a9a and collection box a9b, moulding system casing b10
Two sub- casings be respectively for stream case b10a and collection box b10b；Each sub- casing of fluid feed system is respectively brought out one
One check valve 5 is respectively installed in conduit, conduit.Wherein, can only from the check valve 5 drawn for stream case a9a and for flowing case b10a
Fluid is set to flow into fluid from for stream case a9a, for stream case b10a outflows；Drawn from collection box a9b and collection box b10b
Check valve 5 can only prevent fluid flow into collection box a9b, collection box b10b from pushing fluid out.From for flowing case a9a, for stream case
Flow control valve 8 and electronic flowmeter 7 are also sequentially installed with the conduit that b10a is drawn.Divide for stream case a9a and for stream case b10a
Not Lian Jie air compressor 13, provided for stream case a9a and for the pressure in stream case b10a by air compressor 13.
The conduit that often two sub- casings of set fluid moulding system are drawn passes through fluid diverter 6 and Fracture Networks model 1
It is connected.
During oil-water two-phase flow, collection box a9b, collection box b10b in two sets of fluid feed systems respectively by a conduit with
Oil water separator 14 is connected, and oil water separator 14 is separated the oil water mixture in collection box a9b, collection box b10b,
The water isolated and oil are respectively corresponded to by stream by the delivery port 15 and oil-out 16 of oil water separator 14 respectively by a conduit
Return for stream case a9a and for stream case b10a.The design of oil water separator 14 can both reduce oil water mixture and arbitrarily discharge to environment
Pollution, can realize that profit is recycled again.
Difference gauge 4 is arranged on the both sides of Fracture Networks model 1, and difference gauge 4 is connected with computer 18, and certain two are monitored in real time and is split
Gap outlet or the pressure differential of entrance；
The surface of Fracture Networks model 1 is placed with high-definition camera 17, and high-definition camera 17 is connected with computer 18, leads to
Cross high-definition camera 17 and monitor the flow process of two phase flow and the situation of change of two-phase stream interface in real time.
Using the experimental method of described Fracture Networks two phase flow experimental provision, method flow is as follows,
Step 1, making Fracture Networks model 1.
Step 2, connect each device：With conduit by Fracture Networks model 1, moulding system casing a9, moulding system casing
B10, electronic flowmeter 7, flow control valve 8, fluid diverter 6, check valve 5 and difference gauge 4 are connected.
Step 3, installation detecting system：1) hydraulic pressure sensor 2 is installed on to the pressure tap 1d of the bottom of Fracture Networks model 1
It is interior, and be attached with computer 18, regulate line related and power supply；2) difference gauge 4 is attached with computer 18, regulated
Line related and power supply；3) high-definition camera 17 is connected with computer 18, regulates light, position, line related and power supply.
Step 4, the top copper porous plate 3a levelness of adjustment model mounting table 3；
Step 5, the sealing for detecting whole device；
Step 6, the Fracture Networks two phase flow experiment for carrying out Stress control or flow control；
All Fracture Networks models 1 of design are carried out two phase flow reality by step 7, the operation for repeating experimental procedure 2- steps 6
Test；
After the completion of step 8, experiment, Fracture Networks model and all connectors are unloaded, water system casing a9 is vented, supplied water
Water in system casing 10 and electronic flowmeter 7 and all loops, closes air compressor machine 13 and oil water separator 14, puts in order all
Experiment appliance in case use later again.
It can be seen from the above technical proposal that Fracture Networks two phase flow experimental provision of the present invention has the advantages that：
(1) a kind of experimental provision for Fracture Networks two phase flow is devised, can in real time be monitored and split by high-speed camera
Interface situation of change between the flow process and two phase flow of gap network two phase flow, can be recorded in real time by accurate hydraulic pressure sensor
Pressure changing at monitoring point, has filled up the blank of domestic and international Fracture Networks two phase flow experimental provision.
(2) Integrated design in water system for stream mutually with collection box can be consistent the pressure of two casings, real
Can now be passed in and out by Stress control fluid can be passed in and out by flow control fluid again.
(3) design of oil water separator is that can both realize that profit was recycled, and oil water mixture can be reduced again and is arbitrarily arranged
It is rivals in a contest the pollution of environment.
The above is only technical solution of the present invention general introduction, to more clearly understand the means of the present invention, with reference to attached
The invention will be further described for figure.
Brief description of the drawings
A kind of Fracture Networks two phase flow experimental provision structural representation that Fig. 1 designs for the present invention；
Fig. 2 is the Fracture Networks illustraton of model in the Fracture Networks two phase flow experimental provision shown in Fig. 1；
Fig. 3 is the model loading table sketch in the Fracture Networks two phase flow experimental provision shown in Fig. 1；
Fig. 4 is to adjust the position that horizon rule is sequentially placed when whether the upper strata porous plate shown in Fig. 3 is horizontal；
Fig. 5 is the fluid feed system body structure sketch in the Fracture Networks two phase flow experimental provision shown in Fig. 1；
Fig. 6 is the fluid diverter structure diagram in the Fracture Networks two phase flow experimental provision shown in Fig. 1；
Fig. 7 be Fig. 1 shown in Fracture Networks two phase flow experimental provision in, when the pressure in fluid moulding system casing a9 is big
The flow direction of fluid when pressure in fluid moulding system casing b10；
Fig. 8 be Fig. 1 shown in Fracture Networks two phase flow experimental provision in, the pressure in fluid moulding system casing b10
More than in fluid moulding system casing a9 during pressure fluid flow direction.
In figure：1st, Fracture Networks model；1a, Fracture Networks model upper strata；1b, crack networking model lower floor；1c, fracture network
Network model crack exports conversion head；1d, Fracture Networks model lower floor pressure tap；2nd, hydraulic pressure sensor；3rd, Fracture Networks model is put
Put platform；3a, copper loose structure plate；3b, screw rod；3c, Fracture Networks model mounting table lower floor bearing；3d, horizon rule；4th, differential pressure
Meter；5th, check valve；6th, fluid diverter；7th, electronic flowmeter；8th, flow control valve；9th, moulding system casing a, 10, for stream be
Unite casing b；9a, for stream case a, 10a, for stream case b；9b, collection box a, 10b, collection box b；9c, moulding system box sealing lid；
9d, pressure gauge mounting hole；9e, relief valve mounting hole；9f, for stream box sealing circle；9g, for stream case outlet；9h, for stream case enter
Mouthful；9i, recovery tank inlet；9j, collection box outlet；9k, pressure hole；9l, bolt hole；11st, pressure gauge；12nd, relief valve；13rd, it is empty
Air compressor；14th, oil water separator；15th, delivery port；16th, oil-out；17th, high-definition camera；18th, computer.Solid line in Fig. 1
For pipeline, dotted line is wire.
Embodiment
With reference to Figure of description, the invention will be further described.
The technical problems to be solved by the invention be to provide a kind of simple in construction, convenient disassembly, make easily, safety can
Lean on, practical Fracture Networks two phase flow experimental provision.The experimental provision can not only realize precisely reaction two phase flow mistake
Journey, obtains monitoring point Fluid pressure, and can realize that profit is recycled, and reduction oil water mixture is arbitrarily discharged to environment
Pollution, it is often more important that the device can realize the turnover of fluid by Stress control or by flow velocity according to the requirement of researcher
Control.
The Fracture Networks two phase flow experimental provision of the present invention is mainly made up of five parts：Fracture Networks model 1, model of fissuration
Mounting table 3, fluid feed system, oil water separator and signal acquiring system.
Signal acquiring system includes hydraulic pressure sensor 2, difference gauge 4, high-definition camera 17 and computer 18.
The structural representation of the device is as shown in figure 1, identify the main element of the equipment in figure, its order of connection
For：Hydraulic pressure sensor 2 is installed in the bottom of Fracture Networks model 1, and hydraulic pressure sensor 2 is connected by wire with computer 18.Fracture Networks
Model 1 is placed on model mounting table 3.High-definition camera 17 is installed directly over mounting table, high-definition camera 17 passes through wire
It is connected with computer 18.Two side outlet extraction catheters of Fracture Networks model 1, according to requirement of experiment in Fracture Networks model or so two
Difference gauge 4 is set in certain two conduit of side, and difference gauge 4 is connected by wire with computer 18.Fracture Networks delivery channel passes through
Two fluid diverters 6 are respectively with supplying stream case a9a, and for stream case b10a fluid issuings and collection box a9b, collection box b10b fluids enter
Two conduits that mouth is drawn are connected.From for flowing case a9a, stream has been sequentially arranged for stream case b10a fluid issuings to fluid diverter 6
Adjustable valve 8, electronic flowmeter 7 and check valve 5；Check valve 5 is disposed with from collection box fluid intake to fluid diverter.Reclaim
Case a9b, collection box b10b fluid issuings are connected by conduit with the entrance of oil water separator 14, fluid intake and profit for flowing case
The outlet of separator is connected.Moulding system casing a9, moulding system casing b10 are connected by conduit with air compressor machine 13.
Two sets of fluid feed systems are different except built-in fluid, and its arrangement is just the same with the order of connection.
Fig. 2 is a Fracture Networks model example, is mainly made up of three parts：Fracture Networks model lower floor 1a, Fracture Networks
Model upper strata 1b, crack outlet conversion head 1c.The size of Fracture Networks model lower floor 1 in this example is：220mm×220mm×
16mm (length × width × height) is provided with random crack in it.Wherein, the gap in crack is wide and gap length, and Depth is 5mm.
Contact of the crack with border go out be provided with crack outlet, its Fracture Networks model lower floor 1b size for 10mm × 10mm ×
7.5mm.Fracture Networks model upper strata 1b sizes are：220mm × 220mm × 8mm (length × width × height).Fracture Networks model upper strata
1b does not carve any crack, only in the engraving crack outlet of the corresponding position in crack exit, size be 10mm × 10mm ×
2.5mm.Can be formed when Fracture Networks model upper strata 1b and Fracture Networks model lower floor 1a are bonded size for 10mm × 10mm ×
10mm crack outlet.The size of crack exit cross-section is greater than the size of crack cross section, can so ensure to test
Fluid is that tunneling boring enters crack in journey.Crack exports conversion head 1c by crack with pipeline and is connected.Crack outlet conversion
Head 1c sides are that cuboid side is cylinder, are exported corresponding to 10mm × 10mm × 10mm cracks, crack conversion head cuboid
Partial size is：9.0mm × 9.0mm × 10mm (length × width × height)；The size of crack conversion head cylindrical portion be 9mm ×
20mm (diameter × height).
In order to measure fluid pressure value at the point of certain in Fracture Networks, pressure tap 1d need to be set in Fracture Networks model, pacified
Fill hydraulic pressure sensor 2.Pressure tap 1d is arranged on relevant position in Fracture Networks model lower floor acrylic board.Fracture Networks model is surveyed
Press hole 1d by the supporting internal thread of tapping process Installation hydraulic pressure sensor 2, direction is vertically downward.Pressure tap cloth in this example
Put as shown in the pressure tap 1d in Fig. 2.
Fracture Networks model 1 is made using transparent acrylic, model of fissuration upper strata 1b and model of fissuration lower floor 1a difference
After making, the crack outlet for making the crack of model of fissuration upper strata 1b models export with model of fissuration lower floor 1a models is relative,
Bonded them together using acrylic board special glue.
A kind of fractured zones are only gived in this example, the gap in crack is wide during experiment, and gap is long, Depth, fractured zones,
Pressure tap position can voluntarily be set as needed by researcher.
The Fracture Networks model 1 made is placed on model of fissuration mounting table 3.The structure of Fracture Networks model mounting table 3
Sketch three parts as shown in figure 3, be mainly made up of：Upper strata porous plate 3a, can adjust height screw rod 3b, lower level floor bearing 3c.
Fracture Networks model 1 is placed on the porous plate 3a of upper strata, needs to make whole pressure measurement hole sites just when placing Fracture Networks model 1
Positioned at the surface of porous plate endoporus, to facilitate installation hydraulic pressure sensor.Four screw rod 3b are located at upper strata porous plate 3a tetra- respectively
The position at individual angle, that is, connect upper strata copper porous plate 3a and lower level floor bearing 3c, further through rotation screw rod 3b regulations upper strata
Copper porous plate 3a levelness.When adjusting upper strata copper porous plate 3a, auxiliary adjustment, horizon rule 3d are carried out by horizon rule 3d
Placement location successively it is as shown in Figure 4 1., 2. and 3., rotary screw makes horizon rule 3d be in level in above three orientation
Position.
Moulding system casing a9, moulding system casing b10 are the main body of fluid feed system, its structure diagram such as Fig. 5 institutes
Show.Each moulding system casing a9, moulding system casing b10 are constituted by two sub- casings, are known respectively as stream case a9a,
For flowing case b10a and collection box a9b, collection box b10b, as shown in Figure 5.For stream case a9a, for stream case b10a and collection box a9b, return
The bottom for receiving case b10b is separated by, and top is communicated.The purpose so designed is two sons when providing pressure by air compressor 13
The pressure of casing can be consistent.
For being provided with two pipe joints in stream case a9a, respectively for stream case fluid issuing 9g and for stream case fluid intake
9h.For stream case fluid issuing 9g by pipeline successively with flow control valve 8, electronic flowmeter 7, check valve 5 and divided fluid stream
Device 6 is connected with Fracture Networks model 1.Check valve 5 act as making fluid can only be from moulding system casing close to fluid diverter 6
A9, moulding system casing b10 flow into Fracture Networks model 1, it is impossible to be allowed to reverse flow；Electronic flowmeter 7 is located at the He of check valve 5
Between flow control valve 8, it act as showing the flow of fluid in conduit；Flow control valve 8 is close to for stream case a9a, to adjust
The flow of fluid in conduit.For stream case fluid intake 9h fluid is injected into moulding system casing a9.In research oil-water two-phase flow
When, the fluid intake of two fluid feed systems connects the water out 15 and oil export of oil water separator 14 by conduit respectively
16.Collection box b10b is identical with the structure for stream case a9a.
Two pipe joints are also provided with collection box a9b, respectively collection box fluid intake 9i and collection box fluid go out
Mouth 9j.Collection box fluid intake 9i is by pipeline, and successively with check valve 5, fluid diverter 6 is connected with Fracture Networks model 1.It is single
To valve 5 act as fluid is flowed into collection box a9b from Fracture Networks model 1, it is impossible to be allowed to reverse flow.Collection box stream
Body outlet 9j act as discharging the fluid in collection box.When studying oil-water two-phase flow, collection box fluid issuing 9j passes through conduit
It is connected with the entrance of oil water separator 14.
Pressure hole 9k is installed for the upper position for flowing case a9a, pressure hole 9k is connected by pipeline with air compressor 13.
It is identical with the structure for stream case a9a for stream case b10a.
Moulding system casing a9 is sealed using closure 9c and sealing ring 9f as shown in Figure 5.At the top of closure 9f
Provided with two circular apertures, respectively pressure gauge mounting hole 9d and relief valve mounting hole 9e.Closure 9c, sealing ring 9f and casing
The circular port of one week is bolt hole 9l.Moulding system casing b10 is identical with moulding system casing a9 structure.
Due to exporting the conduit quantity not one that 1c is drawn from crack, for the Fracture Networks model shown in Fig. 2, upper left
The conduit quantity that side is drawn is 5, and the conduit quantity that lower right side is drawn is 6.So drawing from for stream case a9a and collection box a9b
The conduit that the conduit gone out respectively exports 1c extractions by a fluid diverter 6 and crack is connected, the structure diagram of fluid diverter 6
As shown in Figure 6.The side of fluid diverter 6 is porous, and opposite side is single hole, and porous side and the crack of fluid diverter 6 go out
The conduit that mouth 1c is drawn is connected, and the single hole side of fluid diverter 6 is connected with for stream case a9a or with the conduit of collection box a9b extractions.
Each outlet of fluid diverter 6 is mounted on not providing in valve, figure, opens or closes stream as the case may be in an experiment
Exported accordingly in body current divider 6.
The experimental facilities can researcher be more by adjusting the turnover of the Stress control fluid in moulding system, but sometimes
Be absorbed in crack outlet and porch pressure differential, be this this experimental facilities in crack exit there is provided difference gauge 4.Difference gauge 4
The conduit specifically connected is set by researcher according to experiment demand.Difference gauge 4 is connected by wire with computer 18 to be remembered in real time
Pressure differential between the outlet of record two.In order to monitor the flow process of the two phase flow in Fracture Networks model 1 in real time, in model of fissuration
High-definition camera 17 is installed directly over mounting table, video camera 17 is connected by wire with computer 18.
Fig. 7 and Fig. 8 show in more detail in experimentation fluid between fluid moulding system a9 and fluid moulding system b10
Mobility status.When the pressure in fluid moulding system casing a9 is more than the pressure in fluid moulding system casing b10, it is for stream
The flow control valve 8, the electronic flowmeter 7 that sequentially pass through left side by conduit for the fluid in stream case a9a in system casing 9, it is single
To valve 5, fluid diverter 6, Fracture Networks model 1, right side fluid diverter 6, the check valve 5 on right side flows into moulding system case
Collection box b10b in body b10；When the pressure in fluid moulding system casing b10 is more than the pressure in fluid moulding system casing a9
During power, the flow control valve on right side can be sequentially passed through by conduit for the fluid in stream case a10a in moulding system casing b10
8th, electronic flowmeter 7, check valve 5, fluid diverter 6, Fracture Networks model 1, the fluid diverter 6 in left side, left side it is unidirectional
The collection box a9b that valve 5 is flowed into moulding system casing a9.
A kind of operating process for Fracture Networks model two phase flow experimental provision that the present invention is provided is：
Step 1, making Fracture Networks model 1.Fracture Networks model 1 is made using two pieces of transparent acrylics, wherein
One piece by the good Fracture Networks of engraving machine shaping, crack outlet and hydraulic pressure sensor mounting hole, in another piece of acrylic
Only engraving crack outlet, bonding with the acrylic board that acrylic board special glue has carved two pieces afterwards in plate.
Step 2, connect each device：With conduit and crack outlet conversion head 1c, by water system casing 9,10, crack
Network model 1, electronic flowmeter 7, flow control valve 8, fluid diverter 6, check valve 5 and difference gauge 4 are connected.
Step 3, installation detecting system and connection line：(1) hydraulic pressure sensor 2 is installed on Fracture Networks model pressure tap
In 1d, and it is attached with computer 18, regulates line related and power supply；(2) difference gauge 4 is attached with computer 18, adjusted
Line related and power supply are saved；(3) high-definition camera 17 is connected with computer 18, regulates light, position, line related and electricity
Source.
Step 4, the levelness of adjustment Fracture Networks model mounting table 3.Screw rod 3b in rotation Fig. 3 makes horizon rule in Fig. 4,
1., 2., orientation 3. is in horizontal level.
Step 5, the sealing for detecting whole device.By taking oil-water two-phase flow as an example, one of which moulding system is for stream
Water is filled in case, in another moulding system for filling oil in stream case, check each bolt and joint whether fixing compact, open
The power switch of air compressor 13, adjusting pressure release valve 12 increases the pressure in moulding system casing from small to large, and observation is whole real
Experiment device whether leak and oil leak, need to screw or replace again bolt and joint if being unsatisfactory for.
Step 6, the Fracture Networks two phase flow experiment for carrying out Stress control or flow control.
Step 7, the operation for repeating experimental procedure 2-6, all Fracture Networks models are tested.
After the completion of step 8, all experiments, unload Fracture Networks model and all connectors, emptying water system casing and
Water in electronic flowmeter and all loops, closes air compressor machine, oil water separator, puts all experiment appliances in order in case again later
With.
In summary, the present invention provides a kind of experimental provision specifically designed for Fracture Networks two phase flow, and it can both pass through
The turnover of Stress control fluid, again can be by the turnover of flow control fluid.The experimental provision can monitor two-phase in real time simultaneously
The situation of change of Fluid pressure size at the flow process of stream, record monitoring point, with stronger practical value.
Although above-mentioned the experimental provision and embodiment of the present invention are described with reference to accompanying drawing, not to this
The limitation of invention protection domain, one of ordinary skill in the art should be understood that on the basis of technical scheme, this area
Technical staff need not pay the various modifications that creative work can make or deform still within protection scope of the present invention.
Claims (10)
1. a kind of Fracture Networks two phase flow experimental provision, it is characterised in that：The device includes a set of Fracture Networks model, a cover die
Type mounting table, two sets of fluid feed systems, a set of oil-water separation system and a set of signal acquiring system；Signal acquiring system includes
Hydraulic pressure sensor (2), difference gauge (4), high-definition camera (17) and computer (18)；
Fracture Networks model (1) is made by two block size identical transparent acrylics, one piece of acrylic board wherein
Fracture Networks are inside carved with, are then bonded it with another piece of transparent acrylic board by acrylic board special glue；Split
Each crack exit of gap network model (1) is mounted on crack outlet conversion head, to connect Fracture Networks model (1) and lead
Pipe；
The bottom of Fracture Networks model (1) is provided with multiple pressure taps (1d), hydraulic pressure biography is disposed with each pressure tap (1d)
Sensor (2), hydraulic pressure sensor (2) is connected with computer (18), is recorded in real time by hydraulic pressure sensor (2), monitors pressure tap
Pressure size situation of change at (1d) position；
Fracture Networks model (1) is placed on model of fissuration mounting table (3)；Model of fissuration mounting table (3) top is that copper is porous
Structural slab (3a)；The tetrapod of copper loose structure plate (3a) is respectively provided with a height-adjustable screw rod (3b), screw rod
(3b) is connected with the bottom support bracket (3c) of model of fissuration mounting table (3)；Copper is adjusted by the knob on rotary screw (3b) many
The levelness of pore structure plate (3a)；
The both sides of Fracture Networks model (1) are provided with two sets of fluid moulding systems；Often set fluid moulding system include check valve (5),
Fluid diverter (6), electronic flowmeter (7), flow control valve (8), moulding system casing, pressure gauge (11), relief valve (12),
Air compressor (13) and conduit；Wherein, moulding system casing is the core component of fluid moulding system；Often set fluid is for stream
The moulding system casing of system is constituted by two sub- casings, and one of them sub- casing supply fluid outflow is referred to as flowing case, separately
One sub- casing reclaims fluid and is referred to as collection box；The bottom of two sub- casings is separated by, and top is communicated；Two sets of fluid moulding systems
In moulding system box inner structure it is identical；
The moulding system casing of two sets of fluid moulding systems is respectively moulding system casing a (9) and moulding system casing b (10),
Two sub- casings in moulding system casing a (9) are sealed by same closure a (9c), and pressure is housed at the top of closure a (9c)
Table (11) and relief valve (12)；Pressure gauge (11) and relief valve (12) are act as in regulation, display moulding system casing a (9)
Pressure；
Moulding system casing a (9) two sub- casings are respectively for stream case a (9a) and collection box a (9b), moulding system casing b
(10) two sub- casings are respectively for stream case b (10a) and collection box b (10b)；Each sub- each quilt of casing of fluid feed system
Draw in a conduit, conduit and a check valve (5) is respectively installed；Wherein, drawn from for stream case a (9a) and for stream case b (10a)
Check valve (5) can only make fluid from for stream case a (9a), for stream case b (10a) outflow can not flow into fluid；From collection box a
The check valve (5) that (9b) and collection box b (10b) are drawn, which can only make fluid flow into collection box a (9b), collection box b (10b), to be made
Fluid flows out；From for stream case a (9a), flow control valve (8) and electricity are also sequentially installed with the conduit drawn for stream case b (10a)
Subflow gauge (7)；Air compressor (13) is connected respectively for stream case a (9a) and for stream case b (10a), for stream case a (9a) and for flowing
Pressure in case b (10a) is provided by air compressor (13)；
The conduit that often two sub- casings of set fluid moulding system are drawn passes through fluid diverter (6) and Fracture Networks model (1)
It is connected；
During oil-water two-phase flow, collection box a (9b), collection box b (10b) in two sets of fluid feed systems respectively by a conduit with
Oil water separator (14) is connected, and oil water separator (14) enters the oil water mixture in collection box a (9b), collection box b (10b)
Row separation, a conduit point is respectively passed through by the delivery port 15 and oil-out 16 of oil water separator (14) by the water isolated and oil
It Dui Ying not flow back to for stream case a (9a) and for stream case b (10a)；
Difference gauge (4) is arranged on the both sides of Fracture Networks model (1), and difference gauge (4) is connected with computer (18), monitor in real time certain two
Individual crack outlet or the pressure differential of entrance；
High-definition camera (17) is placed with directly over Fracture Networks model (1), high-definition camera (17) is connected with computer (18)
Connect, monitor the flow process of two phase flow and the situation of change of two-phase stream interface in real time by high-definition camera (17).
2. a kind of Fracture Networks two phase flow experimental provision according to claim 1, it is characterised in that：Fracture Networks model
(1) made using transparent acrylic, after model of fissuration upper strata (1b) and model of fissuration lower floor (1a) make respectively, make to split
The crack outlet of gap model upper strata (1b) model and the crack outlet of model of fissuration lower floor (1a) model are relative, using acrylic board
Special glue is bonded them together；
Fracture Networks model lower floor (1a) is provided with random crack；Wherein, the gap in random crack is wide, gap length and Depth are equal
Can voluntarily it be set according to test requirements document；The contact position on crack and border is provided with the crack outlet more than Fracture Width and height；
Any crack is not carved on Fracture Networks model upper strata (1b), only in the corresponding position engraving crack outlet in crack exit；Viscous
Make the outlet of two cracks relative when knot Fracture Networks model upper strata (1b) and Fracture Networks model lower floor (1a)；Crack outlet is transversal
The size in face is more than the size of crack cross section；Crack exports conversion head (1c) by crack with pipeline and is connected.
3. a kind of Fracture Networks two phase flow experimental provision according to claim 1, it is characterised in that：In Fracture Networks model
Pressure tap (1d) is set, hydraulic pressure sensor (2) is installed；Pressure tap (1d) is arranged on phase in Fracture Networks model lower floor acrylic board
Answer position；Fracture Networks model pressure tap (1d) is by the supporting internal thread of tapping process Installation hydraulic pressure sensor (2), and direction is hung down
It is straight downward.
4. a kind of Fracture Networks two phase flow experimental provision according to claim 1, it is characterised in that：The fracture network made
Network model (1) is placed on model of fissuration mounting table (3)；Model of fissuration mounting table (3) is made up of three parts：Upper strata porous plate
(3a), can adjust height screw rod (3b), lower level floor bearing (3c)；Fracture Networks model (1) is placed on upper strata porous plate (3a),
The surface for making whole pressure measurement hole sites be placed exactly in porous plate endoporus is needed when placing Fracture Networks model (1), with convenient
Hydraulic pressure sensor is installed；Four screw rods (3b) are located at the position at upper strata porous plate (3a) four angles respectively, that is, connect upper strata copper
Porous plate (3a) and lower level floor bearing (3c), can adjust upper strata copper porous plate (3a) level by rotating the screw rod (3b) again
Degree；When adjusting upper strata copper porous plate (3a), auxiliary adjustment is carried out by horizon rule (3d).
5. a kind of Fracture Networks two phase flow experimental provision according to claim 1, it is characterised in that：For in stream case a (9a)
Two pipe joints are provided with, respectively for stream case fluid issuing (9g) and for stream case fluid intake (9h)；Go out for stream case fluid
Mouthful (9g) by pipeline successively with flow control valve (8), electronic flowmeter (7), check valve (5) and fluid diverter (6) with
Fracture Networks model (1) is connected；Check valve (5) act as making fluid can only be from moulding system casing close to fluid diverter (6)
A (9), moulding system casing b (10) flow into Fracture Networks model (1), it is impossible to be allowed to reverse flow；Electronic flowmeter (7) is located at
Between check valve (5) and flow control valve (8), it act as showing the flow of fluid in conduit；Flow control valve (8) is close to for flowing
Case a (9a), the flow to adjust fluid in conduit；For stream case fluid intake (9h), into moulding system casing a (9), injection is flowed
Body；When studying oil-water two-phase flow, the fluid intake of two fluid feed systems connects oil water separator respectively by conduit
(14) water out (15) and oil export (16)；Collection box b (10b) is identical with the structure for stream case a (9a).
6. a kind of Fracture Networks two phase flow experimental provision according to claim 1, it is characterised in that：In collection box a (9b)
It is also provided with two pipe joints, respectively collection box fluid intake (9i) and collection box fluid issuing (9j)；Collection box fluid
Entrance (9i) is by pipeline, and successively with check valve (5), fluid diverter (6) is connected with Fracture Networks model (1)；Check valve (5)
Act as make fluid can only from Fracture Networks model (1) flow into collection box a (9b), it is impossible to be allowed to reverse flow；Collection box stream
Body outlet (9j) act as discharging the fluid in collection box；When studying oil-water two-phase flow, collection box fluid issuing (9j) passes through
Conduit is connected with the entrance of oil water separator (14).
7. a kind of Fracture Networks two phase flow experimental provision according to claim 1, it is characterised in that：For stream case a's (9a)
Upper position has installed pressure hole (9k), and pressure hole (9k) is connected by pipeline with air compressor (13)；For stream case b (10a)
It is identical with the structure for stream case a (9a).
8. a kind of Fracture Networks two phase flow experimental provision according to claim 1, it is characterised in that：Moulding system casing a
(9) sealed using closure (9c) and sealing ring (9f)；Provided with two circular apertures at the top of closure (9f), respectively press
Power table mounting hole (9d) and relief valve mounting hole (9e)；Closure (9c), sealing ring (9f) and the casing circular port of one week is spiral shell
Keyhole (9l)；Moulding system casing b (10) is identical with moulding system casing a (9) structure.
9. a kind of Fracture Networks two phase flow experimental provision according to claim 1, it is characterised in that：Due to being exported from crack
The conduit quantity that (1c) upper left side is drawn is 5, and the conduit quantity that lower right side is drawn is 6；So from for flowing case a (9a) and returning
The conduit that the conduit for receiving case a (9b) extractions respectively exports (1c) extraction by a fluid diverter (6) and crack is connected；Fluid point
The side for flowing device (6) is porous, and opposite side is single hole, and porous side and the crack of fluid diverter (6) export (1c) extraction
Conduit is connected, and fluid diverter (6) single hole side is connected with for stream case a (9a) or with collection box a (9b) conduits drawn；Fluid
Each outlet of current divider (6) is mounted on valve；
Difference gauge (4) is connected by wire with computer (18) can record the pressure differential between two outlets in real time；In order to monitor in real time
The flow process of two phase flow in Fracture Networks model (1), high-definition camera is provided with directly over model of fissuration mounting table
(17), high-definition camera (17) is connected by wire with computer (18)；
When the pressure in fluid moulding system casing a (9) is more than the pressure in fluid moulding system casing b (10), fluid is supplied
The flow control valve (8), the electronics that sequentially pass through left side by conduit for the fluid in stream case a (9a) in streaming system casing a (9)
Flowmeter (7), check valve (5), fluid diverter (6), Fracture Networks model (1), the fluid diverter (6) on right side, right side
The collection box b (10b) that check valve (5) is flowed into moulding system casing b (10)；Pressure in fluid moulding system casing b (10)
When power is more than the pressure in fluid moulding system casing a (9), the stream supplied in stream case a (10a) in moulding system casing b (10)
Know from experience flow control valve (8), the electronic flowmeter (7), check valve (5), fluid diverter that right side is sequentially passed through by conduit
(6), Fracture Networks model (1), the fluid diverter (6) in left side, the check valve (5) in left side are flowed into moulding system casing a (9)
Collection box a (9b).
10. a kind of Fracture Networks two phase flow experimental method carried out using experimental provision described in claim 1, it is characterised in that：
Step 1, making Fracture Networks model (1)；Fracture Networks model (1) is made using two pieces of transparent acrylics, and wherein one
Block is by the good Fracture Networks of engraving machine shaping, crack outlet and hydraulic pressure sensor mounting hole, in another piece of acrylic board
Only the outlet of engraving crack, bonding with the acrylic board that acrylic board special glue has carved two pieces afterwards；
Step 2, connect each device：With conduit and crack outlet conversion head (1c), by water system casing, Fracture Networks mould
Type (1), electronic flowmeter (7), flow control valve (8), fluid diverter (6), check valve (5) and difference gauge (4) are connected
Come；
Step 3, installation detecting system and connection line：1) hydraulic pressure sensor (2) is installed on Fracture Networks model pressure tap
In (1d), and it is attached with computer (18), regulates line related and power supply；2) difference gauge (4) and computer (18) are carried out
Connection, regulates line related and power supply；3) high-definition camera (17) is connected with computer (18), regulates light, position, phase
Close circuit and power supply；
Step 4, adjustment Fracture Networks model mounting table (3) levelness；Rotary screw (3b) is horizontal horizon rule；
Step 5, the sealing for detecting whole device；In oil-water two-phase flow, one of which moulding system in stream case for filling
Water, in another moulding system for filling oil in stream case, check each bolt and joint whether fixing compact, open air compression
The power switch of machine (13), adjusting pressure release valve (12) increases the pressure in moulding system casing, the whole experiment of observation from small to large
Device whether leak and oil leak, need to screw or replace again bolt and joint if being unsatisfactory for；
Step 6, the Fracture Networks two phase flow experiment for carrying out Stress control or flow control；
Step 7, the operation for repeating experimental procedure 2- steps 6, all Fracture Networks models are tested；
After the completion of step 8, all experiments, Fracture Networks model and all connectors, emptying water system casing and electronics are unloaded
Water in flowmeter and all loops, closes air compressor machine, oil water separator, puts all experiment appliances in order in case use again later.
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| CN108152186A (en) * | 2017-12-10 | 2018-06-12 | 北京工业大学 | A kind of experimental provision for simulating the Fracture Networks two phase flow under coupling in complicated underground environment |
| CN109506884A (en) * | 2018-11-29 | 2019-03-22 | 东北大学 | A kind of transparent crack air and liquid twophase flow experiment device |
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