CN106437644B - Outsole water sandstone oil reservoir develops physical simulation experiment device and its working method - Google Patents
Outsole water sandstone oil reservoir develops physical simulation experiment device and its working method Download PDFInfo
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- CN106437644B CN106437644B CN201610822525.2A CN201610822525A CN106437644B CN 106437644 B CN106437644 B CN 106437644B CN 201610822525 A CN201610822525 A CN 201610822525A CN 106437644 B CN106437644 B CN 106437644B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/20—Displacing by water
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/002—Survey of boreholes or wells by visual inspection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Abstract
The present invention relates to oil-gas field development fields, more particularly to outsole water sandstone oil reservoir exploitation physical simulation experiment device and its working method, model ontology are used to simulate bottom water energy for constructing oil, water layer, bottom water system, model ontology connects resistivity meter, and resistivity meter is connect with data processing system；Injected system is connect with model ontology, and water or well stimulation chemical agent are injected into model ontology；Mining system is connect with model ontology, is used for control production pressure and speed, and data processing system is also injected separately into system, mining system connection, data processing system monitoring pressure in real time field and saturation field variation, and control production system.The present invention can simulate the exploitation of outsole water sandstone oil reservoir natural energy, water flooding recovery and oil and water zonation and pressure distribution in well stimulation recovery process, provide reliable physical simulation model and method to study percolation law and the well stimulation effect of outsole water sandstone oil reservoir.
Description
Technical field
The present invention relates to oil-gas field development field more particularly to outsole water sandstone oil reservoir exploitation physical simulation experiment device and
Its working method.
Technical background
Bottom water sandstone oil reservoir belongs to relatively conventional type oil reservoir, and bottom water coning or coning easily occur after operation, causes in short-term
Between High water cut, reservoir reserve development degree is low, development effectiveness is poor.In order to study bottom water reservoir remaining oil distribution and well stimulation feelings
Condition, laboratory physical simulation experiment is essential, adopts mode, profile control agent injection relative position, profile control agent injection to the best note of decision
Amount etc. plays an important role.In recent years, outsole water sandstone oil reservoir exploitation physical model and analogy method research are more, but deposit
In following deficiency: (1) mostly based on two-dimensional visualization plate, the recovery process of bottom water reservoir cannot be studied from three dimension scale；(2)
It cannot study simultaneously there are the lateral displacement situation under bottom water energy, most models are only capable of accomplishing to study bottom water drive or lateral drive
It replaces；(3) under conditions of model has certain pressure, department pattern possesses saturation degree monitoring function, but is difficult to accomplish one side
Visually；(4) most models and last the case where considering oil-water-layer, mostly based on fully saturated oil, it is difficult to form preferable grease
Layer；(5) model developed currently on the market mostly coats model with the resin of agglutination sand, and recycling number is limited, waste of material.
Chinese patent CN202363006U discloses a kind of experimental physics model of bottom water development of low-permeability oil reservoir, and use is low
It permeates based on consolidated model, bottom water is connected with liquid-accumulating trough, and liquid-accumulating trough connects with injected system, and is furnished with extraction system and electrode
Monitoring system.But using is cementing fixed model, and is only capable of simulation bottom water driving, the development situation of horizontal well or straight well,
The variation of model geologic parameter is not accounted for and the case where there are water injection wells；CN105156102A discloses bottom water reservoir water body energy
Measure three-dimensional physical simulation device and method, only to bottom water simulation provide a thinking, do not relate to three-dimension modeling and
Simulate reservoir condition etc.；CN203239338U discloses the two-dimentional artificial core mould for studying bottom and edge water Water invasion rule
Type, this model do not have thickness, differ larger with real stratum；CN102797458A is disclosed for bottom and edge water
Three-dimensional simulation device, the activity of this model side is detachable, but oil-water-layer is difficult to fill and present, and is also easy to produce in grease layer formation process big
Amount gas is encapsulated in inside model, and model is not visible, cannot observe grease level and employ situation.
But the part that above-mentioned bottom water sandstone oil reservoir exploitation physical simulation experiment device all only simply considers oil reservoir is special
Sign is simulated, and analogy method is fairly simple, it is difficult to be reproduced bottom water reservoir recovery process and lateral displacement process, is bottom water reservoir
Exploitation physical simulation experiment brings certain difficulty.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provide an outsole water sandstone oil reservoir exploitation physical simulation experiment device and its
Working method realizes foundation, the drive of bottom water energy, the lateral drive of water filling and the well stimulation displacement of big bottom water physical models of reservoir
Whole Process Simulation.Injection process indsole water energy-controllable especially can be achieved on water filling energy and open with the common displacement of bottom water energy
It adopts.
Outsole water sandstone oil reservoir develops physical simulation experiment device, including model ontology, injected system, bottom water system, opens
Extraction system and data processing system；Model ontology is for constructing oil, water layer, and bottom water system is for simulating bottom water energy, model sheet
Body connects resistivity meter, and resistivity meter is connect with data processing system；Injected system is connect with model ontology, into model ontology
Inject water or well stimulation chemical agent；Mining system is connect with model ontology, control production pressure and speed is used for, at data
Reason system is also connect with injected system, mining system respectively, data processing system monitoring pressure in real time field and saturation field variation,
And control production system.
The injected system includes injection well, and injection well one end is connect with model ontology, and other end connection the one or six is logical
Valve, the first six-way valve also respectively with pressure sensor, the second six-way valve, the top of the first intermediate receptacle, second intermediate receptacle
Top connection；Second six-way valve also connects with the bottom of the first intermediate receptacle, the bottom of the second intermediate receptacle, constant pressure constant speed pump respectively
It connects；Pressure sensor is connect with data processing system.
The bottom water system includes water tank and gas cylinder, and gas cylinder is connect with water tank, and water tank passes through switch valve and mould
The connection of type body bottom portion.
The mining system includes development well, and development well one end is connect with model ontology, and the other end connects metering device；
Development well is also connected with pressure control device, and pressure control device is connect with data processing system.
Model ontology is a cabinet, including top cover board, front pressing plate, back plate, bottom plate and both side plate；One of side plate
On have multiple injection well access ports, connect injected system；There are multiple extraction well access ports, connection exploitation system on another side plate
System；Front pressing plate is inlaid with visual glass plate；Bottom plate has bottom water access port, and top cover board passes through gasket and sealing strip and front
Pressing plate, back plate and both side plate connect bottom water system；There are multiple saturation degrees and pressure monitoring hole, saturation degree and pressure prison in back plate
There is electrode to connect resistivity meter in gaging hole.
The model ontology method of filling and presenting includes:
Oil-water-layer thickness proportion is according to requiring to set；
Water layer is filled and presented using simulation water, according to water consumption and overall volume than calculating porosity；
Oil reservoir fills and presents a point three phases: a. calculates porosity according to the case where known partial size sand；B. according to practical oil
Irreducible water saturation situation is hidden, a certain amount of water is mixed with dry sand and is stirred evenly, makes the simulation sand containing irreducible water；C. it is filled out using oil
Sand legal system makees oil reservoir, and a certain amount of oil is first added, and adds the simulation sand concussion containing irreducible water and shakeouts, circulation is filled out until binding；d.
Using the oil mass and volume of experiment, oil saturation and irreducible water saturation are calculated.
The working method of outsole water sandstone oil reservoir exploitation physical simulation experiment device:
Bottom water energy supplement system nitrogen energy size is determined according to the size of experiment stratum bottom water energy；
It is exploited using bottom water Energy Simulation stratum natural energy, the development well of model two sides, injection well are production at this time
Well, while experimental model oil saturation field distribution is monitored, draw saturation field isopleth map；
When moisture content reaches a certain level, injection well switchs to water injection well, and development well continues as producing well, while monitoring reality
The distribution of model oleaginous saturation field is tested, saturation field isopleth map is drawn.
Analogue technique scheme of the invention is as follows:
(1) model ontology acts on oil reservoir main body using longitudinal relatively high cuboid chamber back-up sand；
(2) in order to realize directly observation oil and water zonation situation, probe insert port, i.e. saturation degree and pressure have been opened behind model
Power monitoring holes, arrange probe inside model according to certain rules, can real-time detection saturation distribution and pressure distribution, and model
It is positive visual detachable, the distribution of more intuitive observation oil-water interfaces.
(3) detachable using model ontology top cover board in order to realize the Relative distribution of oil reservoir and water layer, it is filled out using longitudinal
Liquefaction water layer；
(4) it for the relative size of the bottom water energy of simulated formation and to the influence of remaining oil, is compressed using flexible gas
The method of water pot realizes that bottom water energy size is controllable, and bottom water system is connected to model using switch valve, sufficiently simulation bottom water
Whether it is in communication with the outside, the various modes such as inlet is controllable.
(5) it in order to simulate injection-production relation present in practical oil reservoir, using interchangeable injection-production well shape and position, realizes straight
Well note straight well is adopted, straight well water filling horizontal well is adopted, horizontal well infuses a variety of notes such as straight well is adopted, water injection of horizontal well horizontal well is adopted and adopts mode, and note is adopted
The position of well is adjustable in the longitudinal direction, can simulate the exploitation situation of oil reservoir different location perforation.
(6) in order to which injustice may be implemented using extraction well level pressure exploitation pattern in the voidage-injection imbalance for simulating practical oil reservoir
Weighing apparatus water filling, the mode of bottom water energy supplement exploitation.
(7) present invention is integrated with many-sided collection such as pressure acquisition, saturation degree acquisition, flow control, data transmission and processing
At, it can be achieved that the entire model of real-time monitoring operating status and exploitation situation.
The present invention can simulate in the exploitation of outsole water sandstone oil reservoir natural energy, water flooding recovery and well stimulation recovery process
Oil and water zonation and pressure distribution, for study outsole water sandstone oil reservoir percolation law and well stimulation effect provide reliable object
Manage simulation model and method.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is bottom water drive structural schematic diagram of the invention；
Fig. 3 is not connected to bottom water pour and pluck structure schematic diagram for of the invention；
Fig. 4 a is model ontology front cross-sectional structural schematic diagram of the present invention；
Fig. 4 b is model ontology side profile structural schematic diagram of the present invention；
Fig. 5 is 4 moisture content of embodiment, cumulative oil recovery factor change curve
Fig. 6 is 4 device original internal saturation field distribution map of embodiment；
Fig. 7 is internal saturation field distribution after 4 device bottom water drive of embodiment；
Fig. 8 is internal saturation field distribution after 4 device water drive of embodiment；
Fig. 9 is that 4 device of embodiment injects internal saturation field distribution after cross-linking system；
Figure 10 is the inside saturation field distribution of water drive final result after 4 device transfer drive of embodiment；
Figure 11 is 4 device original internal saturation field front visual window view of embodiment；
Figure 12 is the inside saturation field front visual window view of water drive final result after 4 device transfer drive of embodiment.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, the technical solution in present invention implementation is carried out clearly and completely
Description, it is clear that the described embodiments are merely a part of the embodiments of the present invention, and not all embodiment.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, but the present invention can be with
Implemented with other other ways for being different from this description, those skilled in the art can be without prejudice to intension of the present invention the case where
Under do similar popularization, therefore the present invention is not limited by specific embodiment described below.
As shown in Figure 1, outsole water sandstone oil reservoir develop physical simulation experiment device, including model ontology 7, injected system,
Bottom water system, mining system and data processing system 16；Model ontology 7 is for constructing oil, water layer, and bottom water system is for simulating bottom
Water energy amount, model ontology 7 connect resistivity meter 6, and resistivity meter 6 is connect with data processing system 16；Injected system and model sheet
Body 7 connects, and water or well stimulation chemical agent are injected into model ontology 7；Mining system is connect with model ontology 7, for controlling
Recovery pressure processed and speed, data processing system 16 are also connect with injected system, mining system respectively, and data processing system 16 is real
When monitoring pressure field and saturation field variation, and control production system.
The injected system includes injection well 2, and 2 one end of injection well is connect with model ontology 7, other end connection the one or six
Port valve 3, the first six-way valve 3 is also respectively and among pressure sensor 1, the second six-way valve 4, the top of the first intermediate receptacle 8, second
The top of container 9 connects；Second six-way valve 4 also respectively with the bottom of the first intermediate receptacle 8, the bottom of the second intermediate receptacle 9, perseverance
Constant speed pump 5 is pressed to connect；Pressure sensor 1 is connect with data processing system 16.
The bottom water system includes water tank 14 and gas cylinder 15, and gas cylinder 15 is connect with water tank 14, and water tank 14 passes through
Switch valve 10 is connect with 7 bottom of model ontology.
The mining system includes development well 12, and 12 one end of development well is connect with model ontology 7, other end connection metering
Device 13；Development well 12 is also connected with pressure control device 11, and pressure control device 11 is connect with data processing system 16.
Such as Fig. 4 a and Fig. 4 b, model ontology 7 is a cabinet, including top cover board 74, front pressing plate 78, back plate, bottom plate and
Both side plate；There are multiple injection well access ports 71 on one of side plate, connects injected system；There are multiple extraction on another side plate
Well access port 77 connects mining system；Front pressing plate 78 is inlaid with visual glass plate 79；Bottom plate has bottom water access port 73, top
Cover board 74 connect bottom water system with front pressing plate 78, back plate and both side plate by gasket 75 and sealing strip 76；Have in back plate more
There is electrode to connect resistivity meter 6 in a saturation degree and pressure monitoring hole 72, saturation degree and pressure monitoring hole 72.
Embodiment 1
When this physical model is used to carry out bottom water energy extracting experiment, experimental procedure:
As shown in Fig. 2, in the present embodiment, the bottom surface water injection hole of the ontology by tube body be linked in sequence to switch valve 10,
Water tank 14 and gas cylinder 15.
Die body 7 fills and presents oil-water-layer using sand, and specific method: the sand for screening certain mesh number is washed, and gumming is gone
Dirt；Model is placed longitudinally, and by oil-water-layer thickness than calculating water layer and core intersection；By first plus water add sand to add water repetition again
Water layer thickness is added to, and shakes model during adding sand and adding water；Calculate water layer pore volume；It is full by actual formation irreducible water
It is parameter with degree and water layer porosity, dry sand is mixed into a certain amount of water and is stirred well, makes oil reservoir sand；By layer sand that refuels again that first refuels
The sequence refueled again repeats to add to core intersection, and shakes model during adding sand and adding water；It is full to calculate irreducible water in oil reservoir
With degree and reserves.
Two mouthfuls of extraction wells are connected on oil reservoir top, extraction well well head uses constant DP control system, the i.e. connection of development well 12 control
Pressure device 11 controls Produced Liquid speed, while monitoring well head pressure.
Produced Liquid enters Produced Liquid metering system 1 after passing through constant current amount control system, carries out accurate measurement to Liquid output.
Saturation field and the pressure field change in 6 real-time monitoring displacement process of system, that is, resistivity meter are monitored using saturation degree
Change.
Resistivity meter 6, pressure control device 11 are connected to data processing system 16 and are handled in real time.
Embodiment 2
When this physical model is for carrying out the experiment of closed bottom water reservoir water flooding recovery, experimental procedure:
As shown in figure 3, in the present embodiment, first by natural energy exploitation in embodiment 1, until moisture content reach it is certain and
After degree, bottom water energy switch valve 10 is closed, left side producing well is connected into injected system, while monitoring what pressure sensor 1 obtained
Injection pressure.
Right side produces well and connects pressure control device 11 by constant DP control system, that is, development well 12, controls Produced Liquid speed, together
When monitor well head pressure.
Produced Liquid enters metering device 13 after passing through constant DP control system, carries out accurate measurement to Liquid output.
Saturation field and the pressure field change in 6 real-time monitoring displacement process of system, that is, resistivity meter are monitored using saturation degree
Change.
Pressure sensor 1, resistivity meter 6, pressure control device 11 are connected to data processing system 16 and are handled in real time.
Embodiment 3
When this physical model is for carrying out the experiment of extraneous communication type bottom water reservoir imbalance water flooding recovery, experimental procedure:
As shown in Figure 1, in the present embodiment, first by natural energy exploitation in embodiment 1, until moisture content reach it is certain and
After degree, injected system is connected, carries out water flooding recovery.
Injection-production ratio is calculated by practical oil reservoir, injection rate is controlled and produced quantity reaches practical injection-production ratio, while paying attention to bottom water system
Liquid measure is sufficient in 14 container of water tank in system.
Right side produces well and connects pressure control device 11 by constant DP control system, that is, development well 12, controls Produced Liquid speed, together
When monitor well head pressure.
Produced Liquid enters metering device 13 after passing through constant DP control system, carries out accurate measurement to Liquid output.
Using the saturation field and pressure field in pressure and saturation degree monitoring 6 real-time monitoring displacement process of system resistance rate instrument
Variation.
Pressure sensor 1, resistivity meter 6, pressure control device 11 are connected to data processing system 16 and are handled in real time.
Embodiment 4
The present embodiment is that cross-linked polymer laterally drives remaining oil recovery experiment between raising well, is driven using earlier bottom water energy
It is dynamic, it is developed as shown in Fig. 2, the later period is adopted using balanced type note, as shown in Figure 3.In the present embodiment, the bottom surface of the ontology
Water injection hole is connected to bottom water energy management system by switch valve by tube body sequence.
Die body 7 fills and presents oil-water-layer using sand, specific method: the sand of 100 mesh numbers of screening is washed, and gumming is gone
Dirt；Model is placed longitudinally, oil-water-layer thickness ratio is set as 1:1；Water layer thickness is added to by first adding water that sand is added to add water repetition again,
And model is shaken during adding sand and adding water；Calculate water layer pore volume；The sand for screening 120 mesh numbers is washed, removal
Dust, drying；By 40% porosity, irreducible water saturation 5% calculates dry sand and mixes water, makes oil reservoir sand；It is dissolved using kerosene
Tonyred makes simulation oil, and by first refueling, the sequence that layer sand refuels again of refueling again repeats to add to core intersection, and is adding sand and adding
Model is shaken during water；Calculate irreducible water saturation and reserves in oil reservoir.
Natural energy exploitation, as shown in Fig. 2, connecting two mouthfuls of extraction wells on oil reservoir top, extraction well well head uses level pressure control
System, that is, development well 12 processed connects pressure control device 11, controls Produced Liquid speed, while monitoring well head pressure.
Produced Liquid enters metering device 13 after passing through constant DP control system, carries out accurate measurement to Liquid output.
Saturation field and pressure field variation in 6 real-time monitoring displacement process of system resistance rate instrument are monitored using saturation degree,
Until Produced Liquid moisture content reaches 98%.
Injection and extraction system is improved, balance injection-production method is adopted using a note one, as shown in figure 3, carrying out waterflooding extraction, left side is note
Well, right side are extraction well, and Produced Liquid enters metering device 13 after passing through constant current amount control system, accurately counted to Liquid output
Amount.
Using the saturation field variation in saturation degree monitoring 6 real-time monitoring displacement process of system resistance rate instrument, until extraction
Liquid moisture content reaches 98%.
On the basis of injection and extraction system as shown in Figure 3, cross-linking polymer system is injected by water injection well, injection rate is water-bearing layer
0.4 times of pore volume, monitoring saturation field variation, Hou Ning wait system crosslinking.
Subsequent to be exploited using water injection well filled drive on the basis of injection and extraction system as shown in Figure 3, Produced Liquid passes through level pressure control
Enter metering device 13 after system processed, accurate measurement is carried out to Liquid output.
Using the saturation field variation in saturation degree monitoring 6 real-time monitoring displacement process of system resistance rate instrument, until extraction
Liquid moisture content reaches 98%, terminates experiment.
Pressure sensor 1, resistivity meter 6, pressure control device 11 are connected to data processing system 16 and are handled in real time.
The experimental results showed that bottom water drive recovery ratio is 9.57%, filled drive recovery ratio is 1.5%, with current practical oil reservoir
Exploitation situation it is close；0.4 times of water layer pore volume of cross-linked polymer is injected by water injection well, continues water drive after system crosslinking,
Recovery ratio increment up to 51.33%, it is shown that crosslinking polymers improves the great potential of bottom water reservoir recovery ratio.Fig. 5 be moisture content,
Cumulative oil recovery factor change curve；Fig. 6, Figure 11 are the distribution of device original internal saturation field and front visual window view；Fig. 7 is dress
Internal saturation field distribution after bottom set water drive；Fig. 8 is internal saturation field distribution after device water drive；Fig. 9 is device injection crosslinking
Internal saturation field distribution after system；Figure 10, Figure 12 be device transfer drive after water drive final result inside saturation field distribution and
Front visual window view.
Claims (3)
1. outsole water sandstone oil reservoir develop physical simulation experiment device, which is characterized in that including model ontology (7), injected system,
Bottom water system, mining system and data processing system (16)；Model ontology (7) is used for mould for constructing oil, water layer, bottom water system
Quasi- bottom water energy, model ontology (7) connect resistivity meter (6), and resistivity meter (6) is connect with data processing system (16)；Injection
System is connect with model ontology (7), injection water or well stimulation chemical agent into model ontology (7)；Mining system and model
Ontology (7) connection, be used for control production pressure and speed, data processing system (16) also respectively with injected system, mining system
Connection, data processing system (16) monitoring pressure in real time field and saturation field variation, and control production system；
The injected system includes injection well (2), and injection well (2) one end is connect with model ontology (7), other end connection first
Six-way valve (3), the first six-way valve (3) also respectively with pressure sensor (1), the second six-way valve (4), the first intermediate receptacle (8)
The top connection at top, the second intermediate receptacle (9)；Second six-way valve (4) also respectively with the bottom of the first intermediate receptacle (8),
The bottom of two intermediate receptacles (9), constant pressure constant speed pump (5) connection；Pressure sensor (1) is connect with data processing system (16)；
The mining system includes development well (12), and development well (12) one end is connect with model ontology (7), other end connection meter
It measures device (13)；Development well (12) is also connected with pressure control device (11), and pressure control device (11) is connect with data processing system (16)；
The bottom water system includes water tank (14) and gas cylinder (15), and gas cylinder (15) is connect with water tank (14), water tank
(14) it is connect by switch valve (10) with model ontology (7) bottom；
Model ontology (7) is a cabinet, including top cover board (74), front pressing plate (78), back plate, bottom plate and both side plate；
There are multiple injection well access ports (71) on one of side plate, connects injected system；There are multiple extraction on another side plate
Well access port (77) connects mining system；
Front pressing plate (78) is inlaid with visual glass plate (79)；
Bottom plate has bottom water access port (73), and top cover board (74) passes through gasket (75) and sealing strip (76) and front pressing plate
(78), back plate connects bottom water system with both side plate；
There are multiple saturation degrees and pressure monitoring hole (72) in back plate, there is electrode to connect resistance in saturation degree and pressure monitoring hole (72)
Rate instrument (6).
2. outsole water sandstone oil reservoir according to claim 1 develops physical simulation experiment device, which is characterized in that model sheet
Body (7) method of filling and presenting includes:
Oil-water-layer thickness proportion is according to requiring to set；
Water layer is filled and presented using simulation water, according to water consumption and overall volume than calculating porosity；
Oil reservoir fills and presents a point three phases: a. calculates porosity according to the case where known partial size sand；B. according to practical oil reservoir beam
Water saturation situation is tied up, a certain amount of water is mixed with dry sand and is stirred evenly, makes the simulation sand containing irreducible water；C. using oily back-up sand method
Oil reservoir is made, a certain amount of oil is first added, the simulation sand concussion containing irreducible water is added and shakeouts, circulation is filled out until binding；D. it utilizes
The oil mass and volume of experiment calculate oil saturation and irreducible water saturation.
3. the working method of outsole water sandstone oil reservoir exploitation physical simulation experiment device according to claim 1, feature
It is:
Bottom water energy supplement system nitrogen energy size is determined according to the size of experiment stratum bottom water energy；
It is exploited using bottom water Energy Simulation stratum natural energy, the development well of model two sides, injection well are producing well at this time, together
When monitor the field distribution of experimental model oil saturation, draw saturation field isopleth map；
When moisture content reaches a certain level, injection well switchs to water injection well, and development well continues as producing well, while monitoring experiment mould
Saturation field isopleth map is drawn in type oil saturation field distribution.
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