CN108266166A - A kind of fractured reservoir fluctuates recover the oil microcosmic jet stream anatonosis mechanism evaluation experimental device and method - Google Patents
A kind of fractured reservoir fluctuates recover the oil microcosmic jet stream anatonosis mechanism evaluation experimental device and method Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 137
- 238000012800 visualization Methods 0.000 claims abstract description 94
- 238000006073 displacement reaction Methods 0.000 claims abstract description 69
- 238000004043 dyeing Methods 0.000 claims abstract description 62
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- 239000012530 fluid Substances 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
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Abstract
The present invention relates to a kind of microcosmic jet stream anatonosis mechanism evaluation experimental devices of fractured reservoir fluctuation oil recovery and method, the device to include resonance wave testing stand；Homogeneous crack spread flat plate model is visualized, on resonance wave testing stand, mouth is pressed including import, outlet and ring；Ring presses supply unit, and output terminal is connect with ring pressure mouth；Displacement pumps；Defeated water flooding intermediate receptacle, oil transportation intermediate receptacle, defeated dyeing injectant intermediate receptacle, the respective input port of three is connect with the delivery outlet that displacement pumps, delivery outlet is connect with the input terminal of visualization homogeneous crack spread flat plate model；Liquid container is connected with outlet；Phenomenon observation unit, mounted on visualizing at the corresponding position of spread flat plate model of homogeneous crack.The present invention has the characteristics that simple in structure, installation laying convenience, reliable working performance, visualization and simulation effect are good, can effectively explain that fractured reservoir wave inducing microscopic jet stream anatonosis effect involves the specific mechanism of range with improving.
Description
Technical field
The present invention relates to a kind of microcosmic jet stream anatonosis mechanism evaluation experimental device of fractured reservoir fluctuation oil recovery and methods, belong to
In oil exploitation simulating experiment technique field.
Background technology
Fracture-type reservoir development microcrack, two class pore structure of pore throat, on the one hand the presence of microcrack increases reservoir whole
Body flow conductivity injects water easily along cracking initiation water breakthrough channel, reduces whole water filling and open but then, during waterflooding development
Efficiency is sent out, especially water breakthrough situation is more severe caused by crack in Fractured low permeability reservoir, water phase between matrix and crack
Channelling interaction is reduced, and matrix crude oil is difficult to employ, and oil reservoir produced degree is relatively low.It improves fracture-type reservoir matrix crude oil and employs journey
Degree increases matrix and is interacted with water phase channelling between crack, more above all increasing distribution rather than office of the injection water along crack
It is limited to the crack around injection-production well line.The propagation that oil recovery technique utilizes sound physical properties field is fluctuated, makes oil reservoir and fluid generation
Reason and chemical change, so as to improve oil reservoir seepage flow condition, reach oil-water well increasing yield and injection purpose；Fluctuation oil recovery technique covers low
Frequency resonance wave oil recovery technique, electric pulse, ultrasonic wave block releasing technique, cyclic waterflooding, switchs well, shakiness at waterpower pulse de-plugging repeatedly
The wave propagation process that well testing etc. causes Rock Matrix strain, pore fluid pressure surge is determined, according to BISQ theories and improved
While fluctuation causes the rock stream, solid phase displacement to interlock, radial jet, microcosmic diameter can be generated in pore interior for BISQ theories etc.
Presence to jet stream can promote reservoir anatonosis, region of bypassed oil crude oil to involve degree raising；It recovers the oil when fluctuation and is tied with Reservoir Acidization transformation
During conjunction, acid solution flow direction can be changed in the presence of microcosmic radial jet so that line direction is elongated, vertical note being adopted along note for the reconstruction scope
Line direction is adopted to deepen.
However, fluctuation oil recovery technique mechanism study apparatus and method for is mainly limited to conventional core displacement equipment and side at present
Method can not be observed to obtain the jet action that rock core inside occurs, and visualization discloses the microcosmic jet stream anatonosis mechanism of fluctuation oil recovery and comments
The experimental study apparatus and method for of its influent factor of valency there is no, and the microcosmic jet stream of fluctuation oil recovery especially in fracture-type reservoir increases
Ooze mechanism, fracture-type reservoir fluctuation it is compound acidification correctional effect enhancing Mechanism Study more lack, establish visualization, it is high-precision
Degree, the simulating lab test device of high stability and its effective experimental method further can fluctuate oil recovery technique by further exploration
Dynamics microcosmic effect, promote fluctuation oil recovery technique with fluctuate composite chemical oil recovery technique mining site promote and apply.
Invention content
In view of the deficiencies of the prior art, the present invention provide a kind of simple in structure, installation lay convenience, reliable working performance,
Visualization and simulation effect is good, to involve range specific for effective explanation fractured reservoir wave inducing microscopic jet stream anatonosis effect and raising
The microcosmic jet stream anatonosis mechanism evaluation experimental device of fractured reservoir fluctuation oil recovery of mechanism.
The present invention also provides a kind of experimental methods using above-mentioned experimental provision.
Technical scheme is as follows：
A kind of microcosmic jet stream anatonosis mechanism evaluation experimental device of fractured reservoir fluctuation oil recovery, including：
Resonance wave testing stand；
Homogeneous crack spread flat plate model is visualized, on resonance wave testing stand；
Liquid container, the outlet with visualization homogeneous crack spread flat plate model are connect；
Ring presses supply unit, and output terminal is connect with the ring pressure mouth of visualization homogeneous crack spread flat plate model, to tablet mould
Type provides the pressure at right angle of top, lower part, ensures flat plate model sealing；
Displacement pumps；
Defeated water flooding intermediate receptacle, input port are connect with the delivery outlet that displacement pumps, delivery outlet and visualization homogeneous crack
The input terminal connection of spread flat plate model；
Oil transportation intermediate receptacle, input port are connect with the delivery outlet that displacement pumps, delivery outlet and visualization homogeneous crack spread
The input terminal connection of flat plate model；
Defeated dyeing injectant intermediate receptacle, input port are connect with the delivery outlet that displacement pumps, delivery outlet and visualization homogeneous
The input terminal connection of crack spread flat plate model；
Phenomenon observation unit, mounted on visualization the homogeneous crack corresponding position of spread flat plate model at, for acquiring
The image of experimental physics phenomenon；
Data monitoring control unit is connect with resonance wave testing stand and phenomenon observation unit.
Preferably, the input port of displacement pump is connected with liquid reserve tank, the delivery outlet of displacement pump respectively by control valve with
The input port connection of defeated water flooding intermediate receptacle, oil transportation intermediate receptacle, defeated dyeing injectant intermediate receptacle.
Preferably, the delivery outlet of the defeated water flooding intermediate receptacle, oil transportation intermediate receptacle, defeated dyeing injectant intermediate receptacle
It is connect by a multiple-way valve with the input terminal of visualization homogeneous crack spread flat plate model.
Preferably, the outlet of visualization homogeneous crack spread flat plate model is held by a back-pressure valve with liquid respectively
Device, ring pressure supply unit connection.
Preferably, visualization homogeneous crack spread flat plate model includes simulation reservoir, simulates the surrounding setting of reservoir
There is the ring of sealing device and sealing device pressure mouth to be connect with ring pressure supply unit, ring pressure is added into simulation reservoir by sealing device；
Four ends of simulation reservoir and sealing device offer feed pathway, and one of feed pathway is defeated as inlet and multiple-way valve
Outlet connects, another feed pathway is connect as liquid outlet with liquid container, and other two feed pathway blocks.
Preferably, the simulation reservoir includes following two types：When two pieces of etched homogeneous spread man-made fractures
Edge is sticked together by rectangle glass and the core sand between two blocks of glass, two blocks of glass by adhesive；Second is that
Homogeneous crack is cut into inside the cementing artificial core finished.
Preferably, the homogeneous spread man-made fracture is stitched for parallel seam or staggeredly, spreading direction and resonance wave, the displacement of seam
Seepage direction is parallel or vertical.This design is advantageous in that, is designed to different parallel seams or is staggeredly stitched, different available for research
The microcosmic jet stream mechanism of fluctuation oil recovery of angle seam development oil reservoir.
Preferably, the phenomenon observation unit includes video camera and micron instrument.This design is advantageous in that video camera is used to adopt
Collect the image of experimental physics phenomenon, sustainable record visualizes oil/water/dyeing injectant in the spread flat plate model of homogeneous crack
Distribution, fracture pattern variation, flaw size variation, exact value can be obtained by micron instrument.
Preferably, the data monitoring control unit selects computer.This design is advantageous in that, is incited somebody to action subsequently through sensing line
Various data are transferred to the computer of exclusive data acquisition, and entire experimental provision degree of intelligence is high.
Preferably, the ring pressure supply unit selects hand pump.
Preferably, the displacement pump selects syringe-type flow pump.
A kind of microcosmic jet stream anatonosis mechanism evaluation experimental method of fractured reservoir fluctuation oil recovery, utilizes above-mentioned experiment to fill
It puts, which includes the following steps：
(1) according to requirement of experiment, suitable visualization homogeneous crack spread flat plate model is selected, records internal simulation reservoir
Crack, matrix form, measure flat plate model in fracture spacing, slit width, seam length；
(2) visualization homogeneous crack spread flat plate model is connect with ring pressure pipeline, inlet pipeline and liquid outlet pipeline,
Displacement pump test is opened, ensures that flat plate model is fully sealed；
(3) reservoir saturation simulation water flooding will be simulated in the spread flat plate model of visualization homogeneous crack；
(4) simulation reservoir is heated to needing to environment temperature and the heat preservation of simulated formation；
(5) weight difference according to visualization homogeneous crack spread flat plate model before and after saturation simulation water flooding, calculating can
Pore volume and porosity depending on changing homogeneous crack spread flat plate model；
(6) it carries out oily driven water-replacing dynamic simulation test or water drive replaces oily dynamic simulation test or dyeing injectant displacement mould
Intend experiment or the displacement simulation experiment of fluctuation complex staining injectant；
(7) different crack spreads are replaced, and/or fluctuate the direction visualization homogeneous crack spread different from displacement direction and are put down
Slab repeats step (1) to step (6).
Preferably, before step (1), resonance wave testing stand the first predetermined time of prerun is controlled, is then shut off resonance
Wave testing stand；Preferably, first predetermined time is 30min.This design is advantageous in that, when performing for the first predetermined time
When, form low-frequency resonant wave gel sealing characteristics evaluation test；And when not performing for the first predetermined time, then it is humorous to form non-low frequency
Vibration wave gel sealing characteristics evaluation test.The purpose for the arrangement is that the ability of occluding member large fracture under vibration condition is detected, the
One predetermined time is depending on the various factors such as the volume in injection rate and crack.
Preferably, in step (6), the operating process of the oil driven water-replacing dynamic simulation test is as follows：1. disconnect defeated stratum
Pipeline between water intermediate receptacle and defeated dyeing injectant intermediate receptacle and visualization homogeneous crack spread flat plate model；2. it utilizes
Oil in oil transportation intermediate receptacle is delivered into visualization homogeneous crack spread flat plate model by displacement pump；3. continuous observation visualizes
The oil pressure for displacing water and oil transportation intermediate receptacle in oil and water zonation, liquid container in the spread flat plate model of homogeneous crack；④
When oil pressure keep stablize and displace water it is constant when, then terminate oily driven water-replacing dynamic simulation test.
Preferably, in step (6), the water drive replaces the operating process of oily dynamic simulation test as follows：1. it disconnects in oil transportation
Between container and defeated dyeing injectant intermediate receptacle and visualize the pipeline between the spread flat plate model of homogeneous crack；2. utilize displacement
Water in defeated water flooding intermediate receptacle is delivered into visualization homogeneous crack spread flat plate model by pump；3. multiple time points is divided to remember
Picture recording related parameter, relevant parameter include：Record time, and/or visualization homogeneous crack spread flat plate model inlet water pressure value,
And/or inside the spread flat plate model of visualization homogeneous crack oil and water zonation, and/or displace water, and/or displace oil mass, and/or
Water consumption, wherein, oil mass is displaced as the oil mass in liquid container, displaces water as the water in liquid container, water consumption is defeated
The water of water flooding intermediate receptacle consumption；4. stopping experiment when pore volume of the displacement to the first prearranged multiple, and disconnect defeated
Pipeline between water flooding intermediate receptacle and visualization homogeneous crack spread flat plate model, splits for simulating different oil saturations
The microcosmic jet stream mechanism of seam property reservoir fluctuation oil recovery.
Preferably, in step (6), the operating process of the dyeing injectant displacement simulation experiment is as follows：1. it disconnects defeatedly
Pipeline between layer water intermediate receptacle and oil transportation intermediate receptacle and visualization homogeneous crack spread flat plate model；2. it is pumped using displacement
Dyeing injectant in defeated dyeing injectant intermediate receptacle is delivered into visualization homogeneous crack spread flat plate model；3. divide more
A time point records relevant parameter, and relevant parameter includes：Record time, and/or visualization homogeneous crack spread flat plate model enter
Mouthful dyeing injectant pressure value, and/or visualization homogeneous crack spread flat plate model intrinsic stain injectant/oil/water distribution and/
Or it simulates fracture pattern/slit width/seam length inside reservoir, and/or displaces water, and/or displace oil mass, and/or displace dyeing
Dosage, and/or water consumption, and/or with dyeing dosage, wherein, water is displaced as the water in liquid container, and water consumption is water delivery
The water of intermediate receptacle consumption；4. stopping experiment when pore volume of the displacement to the second prearranged multiple, and disconnect defeated dyeing note
Enter agent intermediate receptacle and visualize the pipeline between the spread flat plate model of homogeneous crack.
Preferably, in step (6), the operating process of the fluctuation complex staining injectant displacement simulation experiment is as follows：①
Resonance wave testing stand is opened, adjusts the vibration frequency to requirement of experiment, vibration acceleration, amplitude；2. it disconnects among defeated water flooding
Pipeline between container and oil transportation intermediate receptacle and visualization homogeneous crack spread flat plate model；3. it is pumped using displacement by defeated dyeing
Dyeing injectant in injectant intermediate receptacle delivers into visualization homogeneous crack spread flat plate model；4. divide multiple time points
Relevant parameter is recorded, relevant parameter includes：Record time, and/or visualization homogeneous crack spread flat plate model entrance dyeing note
Enter agent pressure value, and/or visualization homogeneous crack spread flat plate model intrinsic stain injectant/oil/water distribution, and/or simulation storage
Internal fracture pattern/the slit width of layer/seam it is long, and/or displace water, and/or displace oil mass, and/or displace dye dosage and/
Or water consumption, and/or with dyeing dosage, wherein, water is displaced as the water in liquid container, and water consumption is water delivery intermediate receptacle
The water of consumption；5. stopping experiment when pore volume of the displacement to the second prearranged multiple, stop vibrating and disconnecting defeated dyeing note
Enter agent intermediate receptacle and visualize the pipeline between the spread flat plate model of homogeneous crack.
The beneficial effects of the present invention are：
The microcosmic jet stream anatonosis mechanism evaluation experimental device 1. fractured reservoir of the present invention fluctuation is recovered the oil, have it is simple in structure,
The characteristics of convenience, reliable working performance, good visualization and simulation effect, is laid in installation.
2. using experimental provision of the present invention and combining experimental method of the present invention, it can effectively explain that the induction of fractured reservoir wave is micro-
The specific mechanism that jet stream anatonosis effect involves range with improving is seen, the research to fluctuate oil recovery technique provides experiment basis.
Description of the drawings
Fig. 1 is the structural representation of the microcosmic jet stream anatonosis mechanism evaluation experimental device of fractured reservoir of the present invention fluctuation oil recovery
Figure.
Fig. 2 is the different structure figure of visualization homogeneous crack spread flat plate model in the present invention；Wherein, it is artificial in Fig. 2 a to split
Stitch the parallel seam for horizontal direction, man-made fracture is the parallel seam of vertical direction in Fig. 2 b, and man-made fracture is vertical side in Fig. 2 c
To staggeredly stitch, man-made fracture staggeredly stitching for horizontal direction in Fig. 2 d.
Fig. 3 is the flow chart of experimental method of the present invention.
Wherein：1st, resonance wave testing stand；2nd, visualization homogeneous crack spread flat plate model；3rd, liquid container；4th, ring pressure supplies
To portion；5th, displacement pumps；6th, defeated water flooding intermediate receptacle；7th, oil transportation intermediate receptacle；8th, defeated dyeing injectant intermediate receptacle；9th, phenomenon
Observation unit；10th, data monitoring control unit；11st, control valve；12nd, multiple-way valve；13rd, back-pressure valve；14th, pressure gauge；15th, liquid reserve tank.
Specific embodiment
The present invention will be further described by way of example and in conjunction with the accompanying drawings, but not limited to this.
Embodiment 1：
As depicted in figs. 1 and 2, the present embodiment provides a kind of microcosmic jet stream anatonosis mechanism evaluations of fractured reservoir fluctuation oil recovery
Experimental provision, including：
Resonance wave testing stand 1, can generate low frequency or harmonic high frequency vibration wave, and resonance wave direction is in the x-direction or z directions；This implementation
Example selects low-frequency resonant wave testing stand, and resonance wave direction is in the x-direction；
Homogeneous crack spread flat plate model 2 is visualized, on resonance wave testing stand 1, including import, outlet and ring
Mouth is pressed, the simulation for the microcosmic jet stream anatonosis mechanism of recovering the oil for fractured reservoir fluctuation, fluid flow direction is along x side in flat plate model
To or fluid flow direction is in the x-direction in the y-direction, in the present embodiment middle plateform model；
Liquid container 3, the outlet with visualization homogeneous crack spread flat plate model 2 connect, are marked with to its inside institute
The scale that storing solution volume measures；
Ring presses supply unit 4, and output terminal is connect with the ring pressure mouth of visualization homogeneous crack spread flat plate model 2, to tablet
Model provides the pressure at right angle of top, lower part, ensures flat plate model sealing；The present embodiment middle ring pressure supply unit selects hand pump；
Displacement pumps 5, and displacement pump selects syringe-type flow pump in the present embodiment；
Defeated water flooding intermediate receptacle 6, interior equipped with the long layer simulated formation water in oil field is extended, input port is defeated with displacement pump 5
Outlet connection, delivery outlet are connect with the input terminal of visualization homogeneous crack spread flat plate model 2；
Oil transportation intermediate receptacle 7, interior equipped with in-place oil, input port is connect with the delivery outlet of displacement pump 5, delivery outlet and can
Input terminal connection depending on changing homogeneous crack spread flat plate model 2；
Defeated dyeing injectant intermediate receptacle 8, built-in have dyeing injectant (dyeing injectant be water or hydrofluoric acid or polymer
In one kind, after being mixed with pigment, be fitted into defeated dyeing injectant intermediate receptacle), the delivery outlet of input port and displacement pump 5 connects
It connects, delivery outlet is connect with the input terminal of visualization homogeneous crack spread flat plate model 2；
Phenomenon observation unit 9, mounted on at 2 corresponding position of visualization homogeneous crack spread flat plate model, for adopting
Collect the image of experimental physics phenomenon；
Data monitoring control unit 10 is connected by resonance wave signal transducting wire and resonance wave testing stand 1 and phenomenon observation unit 9
It connects.Data monitoring control unit is used for the low-frequency vibration parameter for setting, low-frequency resonant wave testing stand being controlled to receive, and records from existing
As observation unit is conducted to the experimental phenomena of data monitoring control unit.For example, low-frequency vibration parameter is vibration frequency, vibration accelerates
Degree, mode of vibration etc., wherein, mode of vibration opens vibration and closing for shake table continuous shaking or shake table intermittence.
In addition, the input port of displacement pump 5 is connected with liquid reserve tank 15, the delivery outlet of displacement pump 5 respectively by control valve 11 with
The input port connection of defeated water flooding intermediate receptacle 6, oil transportation intermediate receptacle 7, defeated dyeing injectant intermediate receptacle 8.In defeated water flooding
Between container 6, oil transportation intermediate receptacle 7, the delivery outlet of defeated dyeing injectant intermediate receptacle 8 it is equal with visualization by a multiple-way valve 12
The input terminal connection of matter crack spread flat plate model 2.The outlet of visualization homogeneous crack spread flat plate model 2 passes through a back-pressure valve
13 connect respectively with liquid container 3, ring pressure supply unit 4.
Spread flat plate model 2 outside in visualization homogeneous crack is surrounded with insulating box, visualization homogeneous crack spread tablet mould
Type includes simulation reservoir, and the surrounding for simulating reservoir is provided with the ring pressure mouth of sealing device and sealing device and ring pressure supply unit company
It connects, ring pressure is added into simulation reservoir by sealing device；Four ends of simulation reservoir and sealing device offer feed pathway, feed liquor
Channel passes through adhesive seal with simulation reservoir with sealing device.In the present embodiment, two feed liquors chosen on any bar side lead to
Road is connect as inlet and liquid outlet, inlet with the output terminal of multiple-way valve 12, and liquid outlet is connect with liquid container 3, remaining
Two feed pathways block, and the microcosmic jet stream of fluctuation oil recovery under a note development scheme is adopted for half of dual media reservoir one of simulation
Mechanism.
Multiple-way valve 12 is six-way valve, pressure gauge 14 is connected separately on multiple-way valve 12 and hand pump, for showing and detecting
Visualize the inlet pressure and ring pressure of homogeneous crack spread flat plate model, 0~10.0MPa of pressure gauges measure pressure range and 0
~1.0MPa.
It simulates reservoir and includes following two types：When the rectangle glass of two pieces of etched homogeneous spread man-made fractures and
Edge is sticked together by the core sand between two blocks of glass, two blocks of glass by adhesive；Second is that the cementing people finished
Lithogenesis interior portion is cut into homogeneous crack.No matter simulation reservoir, using which kind of type, homogeneous spread man-made fracture is parallel seam
Or staggeredly stitch, the spreading direction and resonance wave, displacement seepage direction of seam are parallel or vertical, as shown in Figure 2.
Phenomenon observation unit 9 includes video camera and micron instrument, and video camera is used to acquire the image of experimental physics phenomenon, sustainable
Record visualizes the distribution of oil/water/dyeing injectant in the spread flat plate model of homogeneous crack, fracture pattern variation, flaw size
Variation, exact value can be obtained by micron instrument.
Data monitoring control unit 10 selects computer, resonance wave testing stand, video camera, micron instrument in entire experimental provision
And various sensors are connect by data line with computer, and the analysis and calculating of various data are carried out by computer.
Embodiment 2：
A kind of microcosmic jet stream anatonosis mechanism evaluation experimental method of fractured reservoir fluctuation oil recovery, utilizes above-mentioned experiment to fill
It puts, which includes the following steps：
(1) according to requirement of experiment, suitable visualization homogeneous crack spread flat plate model is selected, records internal simulation reservoir
Crack, matrix form, measure flat plate model in fracture spacing, slit width, seam length；In the present embodiment, visualization homogeneous is split
The spread flat plate model model parallel with fractuer direction for the parallel seam of spread, displacement direction is stitched, such as Fig. 2 a, fracture spacing is 1/
10cm2, stitch long 5cm, slit width 0.1cm, other than crack region etch for equally distributed circular holes with connect venturi.
(2) visualization homogeneous crack spread flat plate model is connect with ring pressure pipeline, inlet pipeline and liquid outlet pipeline,
Displacement pump test is opened, sealing test 1 hour, water-tight, pressure remained steady ensures that flat plate model is fully sealed；
(3) reservoir saturation simulation water flooding will be simulated in the spread flat plate model of visualization homogeneous crack；
(4) simulation reservoir is heated to needing 30 DEG C of the environment temperature of simulated formation and continues to keep the temperature to experiment to terminate；
(5) weight difference according to visualization homogeneous crack spread flat plate model before and after saturation simulation water flooding, calculating can
Pore volume and porosity depending on changing homogeneous crack spread flat plate model；For example, before carrying out tested simulation reservoir pretreatment,
It first measures the dry weight of tested simulation reservoir, and by after tested simulation reservoir saturation simulation water flooding, then measures tested die trial
Intend the weight in wet base of reservoir, and the pore volume and porosity of tested simulation reservoir are calculated according to weighing result.
(6) oily driven water-replacing dynamic simulation test is carried out, operating process is as follows：1. disconnect defeated water flooding intermediate receptacle and defeated
It dyes injectant intermediate receptacle and visualizes the pipeline between the spread flat plate model of homogeneous crack；It 2. will be in oil transportation using displacement pump
Between oil in container deliver into visualization homogeneous crack spread flat plate model；3. continuous observation visualization homogeneous crack spread is put down
The oil pressure for displacing water and oil transportation intermediate receptacle in oil and water zonation, liquid container in Slab；4. when oil pressure keep stablize,
And displace water it is constant when, then terminate oily driven water-replacing dynamic simulation test.
(7) different crack spreads are replaced, and/or fluctuate the direction visualization homogeneous crack spread different from displacement direction and are put down
Slab repeats step (1) to step (6).
Embodiment 3：
A kind of microcosmic jet stream anatonosis mechanism evaluation experimental method of fractured reservoir fluctuation oil recovery, the operation step of the experimental method
Suddenly as described in Example 2, the difference is that：In step (6), carry out water drive using above-mentioned experimental provision and replace oily dynamic analog
Intend experiment, operating process is as follows：1. it disconnects oil transportation intermediate receptacle and defeated dyeing injectant intermediate receptacle to split with visualization homogeneous
Stitch the pipeline between spread flat plate model；2. the water in defeated water flooding intermediate receptacle is delivered into visualization using displacement pump
Matter crack spread flat plate model；3. dividing multiple time point record relevant parameters, relevant parameter includes：Record time, and/or visual
Change oil and water zonation inside homogeneous crack spread flat plate model inlet water pressure value, and/or visualization homogeneous crack spread flat plate model,
And/or displace water, and/or displace oil mass, and/or displace dyeing dosage, and/or water consumption, and/or with dye dosage,
In, oil mass is displaced as the oil mass in liquid container, displaces water as the water in liquid container, water consumption is among defeated water flooding
The water of container consumption；4. stopping experiment when pore volume of the displacement to the first prearranged multiple, and disconnect among defeated water flooding
Pipeline between container and visualization homogeneous crack spread flat plate model, for simulating different oil saturation fracture-type reservoir waves
Dynamic microcosmic jet stream mechanism of recovering the oil.
The pore volume of first prearranged multiple：According to the volume of aforementioned surveyed pore volume, porosity and saturated oils,
Water and oil mass is displaced by recording to displace in the step, obtain different oil saturation conditions as initial oil saturation, such as
50%th, 70%, 90%, 95%.Used in this when of displacement amount (amount of our generally how many pore volumes, for example 5 times
Pore volume), be exactly the first prearranged multiple pore volume.
Embodiment 4：
A kind of microcosmic jet stream anatonosis mechanism evaluation experimental method of fractured reservoir fluctuation oil recovery, the operation step of the experimental method
Suddenly as described in Example 2, the difference is that：In step (6), dyeing injectant displacement is carried out using above-mentioned experimental provision
Simulation test, operating process are as follows：1. disconnect defeated water flooding intermediate receptacle and oil transportation intermediate receptacle and visualization homogeneous crack
Pipeline between spread flat plate model；2. using displacement pump by it is defeated dyeing injectant intermediate receptacle in dyeing injectant convey into
Enter to visualize homogeneous crack spread flat plate model；3. dividing multiple time point record relevant parameters, relevant parameter includes：During record
Between, and/or visualization homogeneous crack spread flat plate model entrance dyeing injectant pressure value, and/or visualization homogeneous crack spread
Fracture pattern/slit width/seam inside the distribution of flat plate model intrinsic stain injectant/oil/water, and/or simulation reservoir it is long, and/or
Displace water, and/or displace oil mass, and/or displace dyeing dosage, and/or water consumption, and/or with dyeing dosage, wherein, drive
Water yield is the water in liquid container, and water consumption is the water of water delivery intermediate receptacle consumption；4. when displacement is to second predetermined times
Stop experiment during several pore volume, and disconnect defeated dyeing injectant intermediate receptacle and visualization homogeneous crack spread flat plate model
Between pipeline.
The pore volume of second prearranged multiple：Refer to carry out coloring agent displacement test until all oil all displaced (namely
When being that the port of export does not have the oil stream to go out), the coloring agent volume (generally being represented with the amount of how many pore volume) of at this time displacement is i.e.
Pore volume for the second prearranged multiple.
Embodiment 5：
A kind of microcosmic jet stream anatonosis mechanism evaluation experimental method of fractured reservoir fluctuation oil recovery, the operation step of the experimental method
Suddenly as described in Example 2, the difference is that：In step (6), carry out fluctuation complex staining using above-mentioned experimental provision and note
Enter the experiment of agent displacement simulation, operating process is as follows：1. open resonance wave testing stand, adjust to the vibration frequency of requirement of experiment,
Vibration acceleration, amplitude；2. disconnect defeated water flooding intermediate receptacle and oil transportation intermediate receptacle and visualization homogeneous crack spread tablet
Pipeline between model；3. the dyeing injectant in defeated dyeing injectant intermediate receptacle is delivered into visualization using displacement pump
Homogeneous crack spread flat plate model；4. dividing multiple time point record relevant parameters, relevant parameter includes：Record time, and/or can
Depending on changing in homogeneous crack spread flat plate model entrance dyeing injectant pressure value, and/or visualization homogeneous crack spread flat plate model
Fracture pattern/slit width/seam inside the distribution of portion's dyeing injectant/oil/water, and/or simulation reservoir it is long, and/or displace water,
And/or oil mass, and/or water consumption are displaced, wherein, water is displaced as the water in liquid container, and water consumption is holds among water delivery
The water of device consumption；5. stopping experiment when pore volume of the displacement to the second prearranged multiple, stop vibrating and disconnecting defeated dyeing
Pipeline between injectant intermediate receptacle and visualization homogeneous crack spread flat plate model.
Embodiment 6：
A kind of microcosmic jet stream anatonosis mechanism evaluation experimental method of fractured reservoir fluctuation oil recovery, operating procedure such as embodiment 2
It is described, the difference is that：Before step (1), the first pre- timing of control low-frequency resonant wave testing stand prerun is further included
Between, the first predetermined time was 30min, was then shut off low-frequency resonant wave testing stand.In this way, when performing for the first predetermined time, structure
Into low-frequency resonant wave gel sealing characteristics evaluation test；And when not performing for the first predetermined time, then form non-low-frequency resonant wave
Gel sealing characteristics evaluation test.
Claims (10)
- The microcosmic jet stream anatonosis mechanism evaluation experimental device 1. a kind of fractured reservoir fluctuation is recovered the oil, including：Resonance wave testing stand；Homogeneous crack spread flat plate model is visualized, on resonance wave testing stand；Liquid container, the outlet with visualization homogeneous crack spread flat plate model are connect；Ring presses supply unit, and output terminal connect with the ring pressure mouth of visualization homogeneous crack spread flat plate model, flat plate model is carried For the pressure at right angle on top, lower part, ensure flat plate model sealing；Displacement pumps；Defeated water flooding intermediate receptacle, input port are connect with the delivery outlet that displacement pumps, delivery outlet and visualization homogeneous crack spread The input terminal connection of flat plate model；Oil transportation intermediate receptacle, input port are connect with the delivery outlet that displacement pumps, delivery outlet and visualization homogeneous crack spread tablet The input terminal connection of model；Defeated dyeing injectant intermediate receptacle, input port are connect with the delivery outlet that displacement pumps, delivery outlet and visualization homogeneous crack The input terminal connection of spread flat plate model；Phenomenon observation unit, mounted on at the visualization homogeneous crack corresponding position of spread flat plate model, being tested for acquiring The image of physical phenomenon；Data monitoring control unit is connect with resonance wave testing stand and phenomenon observation unit.
- 2. experimental provision as described in claim 1, which is characterized in that the input port of the displacement pump is connected with liquid reserve tank, drives Held respectively by control valve and defeated water flooding intermediate receptacle, oil transportation intermediate receptacle, defeated dyeing injectant centre for the delivery outlet of pump The input port connection of device；The defeated water flooding intermediate receptacle, oil transportation intermediate receptacle, the defeated delivery outlet for dyeing injectant intermediate receptacle pass through more than one Port valve is connect with the input terminal of visualization homogeneous crack spread flat plate model；The outlet of the visualization homogeneous crack spread flat plate model supply unit is pressed with liquid container, ring by a back-pressure valve respectively Connection.
- 3. experimental provision as claimed in claim 2, which is characterized in that visualization homogeneous crack spread flat plate model includes Reservoir is simulated, the surrounding for simulating reservoir is provided with the ring pressure mouth of sealing device and sealing device and supply unit is pressed to connect with ring, passes through Sealing device adds ring pressure into simulation reservoir；Simulation reservoir and four ends of sealing device offer feed pathway, one of them into Liquid channel is connected as the output terminal of inlet and multiple-way valve, another feed pathway is connect as liquid outlet with liquid container, Other two feed pathway blocks；The simulation reservoir includes following two types：When the rectangle glass of two pieces of etched homogeneous spread man-made fractures and Edge is sticked together by the core sand between two blocks of glass, two blocks of glass by adhesive；Second is that the cementing people finished Lithogenesis interior portion is cut into homogeneous crack.
- 4. experimental provision as claimed in claim 3, which is characterized in that the homogeneous spread man-made fracture is for parallel seam or staggeredly Seam, the spreading direction and resonance wave, displacement seepage direction of seam are parallel or vertical.
- 5. experimental provision as described in claim 1, which is characterized in that the phenomenon observation unit includes video camera and micron instrument, The data monitoring control unit selects computer, and the ring pressure supply unit selects hand pump, and the displacement pump selects syringe-type stream Amount pump.
- A kind of microcosmic jet stream anatonosis mechanism evaluation experimental method 6. fractured reservoir fluctuation is recovered the oil, it is any using claim 1-5 Experimental provision described in, the experimental method include the following steps：(1) according to requirement of experiment, suitable visualization homogeneous crack spread flat plate model is selected, record internal simulation reservoir is split The form of seam, matrix measures fracture spacing, slit width, seam length in flat plate model；(2) visualization homogeneous crack spread flat plate model with ring pressure pipeline, inlet pipeline and liquid outlet pipeline is connect, opened Displacement pump test, ensures that flat plate model is fully sealed；(3) reservoir saturation simulation water flooding will be simulated in the spread flat plate model of visualization homogeneous crack；(4) simulation reservoir is heated to needing to environment temperature and the heat preservation of simulated formation；(5) weight difference according to visualization homogeneous crack spread flat plate model before and after saturation simulation water flooding, calculation visualization The pore volume and porosity of homogeneous crack spread flat plate model；(6) it carries out oily driven water-replacing dynamic simulation test or water drive replaces oily dynamic simulation test or the displacement simulation examination of dyeing injectant Test or fluctuate the experiment of complex staining injectant displacement simulation；(7) different crack spreads are replaced, and/or fluctuate the direction visualization homogeneous crack spread tablet mould different from displacement direction Type repeats step (1) to step (6).
- 7. experimental method as claimed in claim 6, which is characterized in that in step (6), the oil driven water-replacing dynamic simulation test Operating process it is as follows：1. disconnect defeated water flooding intermediate receptacle and defeated dyeing injectant intermediate receptacle and visualization homogeneous crack exhibition Pipeline between cloth flat plate model；2. the oil in oil transportation intermediate receptacle is delivered into visualization homogeneous crack exhibition using displacement pump Cloth flat plate model；3. displacing in the oil and water zonation, liquid container in the spread flat plate model of continuous observation visualization homogeneous crack The oil pressure of water and oil transportation intermediate receptacle；4. when oil pressure keep stablizing and displace water it is constant when, then terminate oily driven water-replacing dynamic Simulation test.
- 8. experimental method as claimed in claim 6, which is characterized in that in step (6), the water drive replaces oily dynamic simulation test Operating process it is as follows：1. it disconnects oil transportation intermediate receptacle and defeated dyeing injectant intermediate receptacle to put down with visualization homogeneous crack spread Pipeline between Slab；2. the water in defeated water flooding intermediate receptacle is delivered into visualization homogeneous crack exhibition using displacement pump Cloth flat plate model；3. dividing multiple time point record relevant parameters, relevant parameter includes：Record time, and/or visualization homogeneous are split Stitch oil and water zonation, and/or drive inside spread flat plate model inlet water pressure value, and/or visualization homogeneous crack spread flat plate model Water yield, and/or oil mass, and/or water consumption are displaced, wherein, oil mass is displaced as the oil mass in liquid container, displaces water as liquid Water in body container, water consumption are the water of defeated water flooding intermediate receptacle consumption；4. when displacement to the hole of the first prearranged multiple Stop experiment during gap volume, and disconnect defeated water flooding intermediate receptacle and visualize the pipe between the spread flat plate model of homogeneous crack Road, for simulating the microcosmic jet stream mechanism of different oil saturation fracture-type reservoir fluctuation oil recoveries.
- 9. experimental method as claimed in claim 6, which is characterized in that in step (6), the dyeing injectant displacement simulation examination The operating process tested is as follows：1. disconnect defeated water flooding intermediate receptacle and oil transportation intermediate receptacle and visualization homogeneous crack spread tablet Pipeline between model；2. the dyeing injectant in defeated dyeing injectant intermediate receptacle is delivered into visualization using displacement pump Homogeneous crack spread flat plate model；3. dividing multiple time point record relevant parameters, relevant parameter includes：Record time, and/or can Depending on changing in homogeneous crack spread flat plate model entrance dyeing injectant pressure value, and/or visualization homogeneous crack spread flat plate model Fracture pattern/slit width/seam inside the distribution of portion's dyeing injectant/oil/water, and/or simulation reservoir it is long, and/or displace water, And/or displace oil mass, and/or displace dyeing dosage, and/or water consumption, and/or with dyeing dosage, wherein, displace water be liquid Water in body container, water consumption are the water of water delivery intermediate receptacle consumption；4. when displacement to the pore-body of the second prearranged multiple Stop experiment during product, and disconnect defeated dyeing injectant intermediate receptacle and visualize the pipe between the spread flat plate model of homogeneous crack Road.
- 10. experimental method as claimed in claim 6, which is characterized in that in step (6), the fluctuation complex staining injectant The operating process of displacement simulation experiment is as follows：1. opening resonance wave testing stand, adjust to the vibration frequency of requirement of experiment, vibration and add Speed, amplitude；2. disconnect defeated water flooding intermediate receptacle and oil transportation intermediate receptacle and visualization homogeneous crack spread flat plate model it Between pipeline；3. the dyeing injectant in defeated dyeing injectant intermediate receptacle is delivered into visualization homogeneous using displacement pump to split Stitch spread flat plate model；4. dividing multiple time point record relevant parameters, relevant parameter includes：It records the time, and/or visualization is equal Matter crack spread flat plate model entrance dyeing injectant pressure value, and/or visualization homogeneous crack spread flat plate model intrinsic stain Fracture pattern/slit width/seam inside injectant/oil/water distribution, and/or simulation reservoir is long, and/or displaces water, and/or drive Oil pump capacity, and/or displace dyeing dosage, and/or water consumption, and/or with dyeing dosage, wherein, displace water be liquid container Interior water, water consumption are the water of water delivery intermediate receptacle consumption；5. stop when pore volume of the displacement to the second prearranged multiple It only tests, stop vibrating and disconnecting defeated dyeing injectant intermediate receptacle and visualizes the pipe between the spread flat plate model of homogeneous crack Road.
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