CN106285662B - Fractured reservoir physical model splits storage than quantitative control methodin and device - Google Patents
Fractured reservoir physical model splits storage than quantitative control methodin and device Download PDFInfo
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- CN106285662B CN106285662B CN201610786282.1A CN201610786282A CN106285662B CN 106285662 B CN106285662 B CN 106285662B CN 201610786282 A CN201610786282 A CN 201610786282A CN 106285662 B CN106285662 B CN 106285662B
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- 238000003860 storage Methods 0.000 title claims abstract description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000011159 matrix material Substances 0.000 claims abstract description 62
- 239000011148 porous material Substances 0.000 claims abstract description 36
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 13
- 239000003921 oil Substances 0.000 claims description 57
- 238000000034 method Methods 0.000 claims description 31
- 238000000605 extraction Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000010729 system oil Substances 0.000 claims 2
- 238000005086 pumping Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 20
- 238000011161 development Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 239000000243 solution Substances 0.000 description 6
- 238000011160 research Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005213 imbibition Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000011555 saturated liquid Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Classifications
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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
- 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
-
- 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
- E21B43/20—Displacing by water
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Abstract
The embodiment of the present invention provides a kind of fractured reservoir physical model and splits storage than quantitative control methodin and device.Fractured reservoir physical model of the present invention splits storage and compares quantitative control methodin, to be placed storage ratio is split by obtaining, and it is measured by the pore volume of the Fracture System of water flooding regime fracture type reservoir physical model, and then the pore volume that obtained Fracture System is stored up than and measured according to be placed splitting determines the oil mass volume to be placed of matrix system, quantitative control is carried out using the oil mass in limited vacuum-saturated mode fracture type reservoir physical model according to the oil mass volume to be placed of matrix system, obtain treated fractured reservoir physical model, treated the fractured reservoir physical model splits storage than splitting storage ratio equal to be placed, to realize that quantitatively controlling fractured reservoir physical model splits storage ratio.
Description
Technical field
The present embodiments relate in fissured porous medium seepage research Physical Experiment technology more particularly to one kind split
Seam property physical models of reservoir splits storage than quantitative control methodin and device.
Background technique
The reserves of fractured reservoir are made of Fracture System and matrix system two parts, wherein the reserves of Fracture System account for
The ratio between gross reserves of fractured reservoir, which is referred to as, splits storage ratio.During waterflooding extraction, water can be altered rapidly along crack into crack
System water logging quickly.And matrix system then carries out grease with Fracture System by imbibition effect under capillary force effect and exchanges.It splits
Seam system and the recovery percent of reserves of matrix system have codetermined the recovery percent of reserves of fractured reservoir.Under normal circumstances, matrix system
Recovery percent of reserves to be far below Fracture System, the great otherness of two systems development effectiveness to split storage than for Fractured oil
The development effectiveness of hiding has decisive impact.Therefore, in fractured reservoir seepage flow and exploitation PHYSICAL MODELING OF IN, it is necessary to tight
Lattice control critical eigenvalue physical models of reservoir splits storage ratio, it is made to have similitude with practical oil reservoir, so as to pre- for studying
Survey actual effect of reservoir development, Optimal Development scheme.
However, in the manufacturing process of fractured reservoir physical model, the pore volume of matrix system and selected model
Material is related, and the pore volume of Fracture System is limited to physical model method for building up and machining accuracy, more difficult to control, institute
With so that can not preferably predict actual effect of reservoir development using the fractured reservoir physical model, and applicability compared with
Difference.
Summary of the invention
The embodiment of the present invention provides a kind of fractured reservoir physical model and splits storage than quantitative control methodin and device, to realize
Quantitatively control fractured reservoir physical model splits storage ratio.
" limited vacuum-saturated mode " involved in the embodiment of the present invention refers specifically to the limited mode for vacuumizing and being saturated,
Limited vacuumize process and then saturated liquid are referred specifically to, which can be water and be also possible to oil.
In a first aspect, the embodiment of the present invention, which provides a kind of fractured reservoir physical model, splits storage than quantitative control methodin, packet
It includes：
It obtains and to be placed splits storage ratio；
By the vacuum point on the bottom edge of fractured reservoir physical model to filling water inside fractured reservoir physical model；
It is injected by the vacuum point on the top surface of fractured reservoir physical model to the fractured reservoir physical model
Gas, and the vacuum point on the bottom edge is opened, the water inside fractured reservoir physical model described in the gas displacement passes through
Vacuum point extraction on the bottom edge records the volume of output water until the vacuum point on the bottom edge stops water outlet, will be described
Pore volume of the volume of output water as the Fracture System of the fractured reservoir physical model；
The fractured reservoir physics is determined than the pore volume with the Fracture System according to storage of splitting to be set
The oil mass volume to be placed of the matrix system of model；
It is split described in quantitatively being controlled according to the oil mass volume to be placed of the matrix system using limited vacuum-saturated mode
Oil mass in seam property physical models of reservoir, obtains treated fractured reservoir physical model；
Wherein, the fractured reservoir physical model includes the vacuum point on multiple bottom edges and the vacuum on multiple top surfaces
Point, treated the fractured reservoir physical model split storage than splitting storage ratio equal to be set.
Second aspect, the embodiment of the present invention provide a kind of fractured reservoir physical model and split storage than quantitative control device, packet
It includes：
It splits storage than obtaining module, to be placed splits storage ratio for obtaining；
Fracture System pore volume measurements module, for by the vacuum point on the bottom edge of fractured reservoir physical model to
Water is filled inside fractured reservoir physical model；It is split by the vacuum point on the top surface of fractured reservoir physical model to described
Seam property physical models of reservoir injects gas, and opens the vacuum point on the bottom edge, fractured reservoir described in the gas displacement
Water inside physical model is produced by the vacuum point on the bottom edge, until the vacuum point on the bottom edge stops water outlet, note
The volume for recording output water, using the volume of the output water as the pore-body of the Fracture System of the fractured reservoir physical model
Product；
Matrix system reserves determining module, for splitting storage than the pore-body with the Fracture System according to be set
Product determines the oil mass volume to be placed of the matrix system of the fractured reservoir physical model；
Matrix system reserves control module, for using limited vacuum according to the oil mass volume to be placed of the matrix system
The mode of saturation quantitatively controls the oil mass in the fractured reservoir physical model, the fractured reservoir physics mould that obtains that treated
Type；
Wherein, the fractured reservoir physical model includes the vacuum point on multiple bottom edges and the vacuum on multiple top surfaces
Point, treated the fractured reservoir physical model split storage than splitting storage ratio equal to be set.
Fractured reservoir physical model of the embodiment of the present invention, which is split, to be stored up than quantitative control methodin and device, to be placed by obtaining
Split storage ratio, and measured by the pore volume of the Fracture System of water flooding regime fracture type reservoir physical model, in turn
The pore volume for storing up than and measuring obtained Fracture System according to be placed splitting determines the oil mass volume to be placed of matrix system,
The oil in limited vacuum-saturated mode fracture type reservoir physical model is used according to the oil mass volume to be placed of matrix system
Amount carries out quantitative control, the fractured reservoir physical model that obtains that treated, should treated fractured reservoir physical model
Split storage than be equal to it is to be placed split storage ratio, to realize that quantitatively control fractured reservoir physical model splits storage ratio, so that use
It should treated that fractured reservoir physical model can preferably predict actual effect of reservoir development.And the embodiment of the present invention
Method for the same fractured reservoir physical model may be implemented it is different split storage ratio, increase physical model applicability and
Utilization rate.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is that fractured reservoir physical model of the present invention splits flow chart of the storage than quantitative control methodin embodiment one；
Fig. 2 is that fractured reservoir physical model of the present invention splits flow chart of the storage than quantitative control methodin embodiment two；
Fig. 3 A is the schematic perspective view of fractured reservoir physical model；
Fig. 3 B is the main view of fractured reservoir physical model；
Fig. 4 is that fractured reservoir physical model of the present invention splits structural schematic diagram of the storage than quantitative control device embodiment one；
Fig. 5 is that fractured reservoir physical model of the present invention splits structural schematic diagram of the storage than quantitative control device embodiment two.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is that fractured reservoir physical model of the present invention splits flow chart of the storage than quantitative control methodin embodiment one, such as Fig. 1
Shown, the method for the present embodiment may include：
Step 101 obtains and to be placed splits storage ratio.
Wherein, what this was to be placed splits the value of splitting storage ratio of the storage than referring specifically to control critical eigenvalue physical models of reservoir.Fractured
Physical models of reservoir includes matrix system and Fracture System, and matrix system and Fracture System include hole, to store up in hole
Oil simulates the fractured reservoir in actual oil gas field.Specifically, the fractured reservoir physical model of the embodiment of the present invention is specific
For by way of Physical Experiment in practical oil-gas field development field fractured reservoir seepage flow mechanism and development process into
Row research.The fractured reservoir physical model of the embodiment of the present invention has built up before executing step 101 and is initial dry
Dry state makes oil storage in the fractured reservoir physical model by execution step 101 to step 105 and splits storage than being to be somebody's turn to do wait set
That sets splits storage ratio, i.e., the fractured reservoir in practical oil-gas field development is simulated with the fractured reservoir physical model.
Step 102, by the vacuum point on the bottom edge of fractured reservoir physical model into fractured reservoir physical model
Portion fills water.
Specifically, being provided with several brills on the bottom edge of the fractured reservoir physical model of the embodiment of the present invention and top surface
Hole, which, which can be used for vacuum, can be used for being saturated, and vacuum refers specifically to the matrix system so that fractured reservoir physical model
Without any substance in the hole of system and Fracture System, saturation refer specifically to so that the matrix system of fractured reservoir physical model and
Gassy or liquid in the hole of Fracture System, gas can be control or other gases, liquid can be water, oil
Or other liquid.The drilling is referred to as vacuum point by the embodiment of the present invention.
Step 103, by the vacuum point on the top surface of fractured reservoir physical model to the fractured reservoir physics
Model injects gas, and opens the vacuum point on the bottom edge, inside fractured reservoir physical model described in the gas displacement
Water, produced by vacuum point on the bottom edge, until the vacuum point on the bottom edge stops water outlet, record the body of output water
Product, using the volume of the output water as the pore volume of the Fracture System of the fractured reservoir physical model.
Specifically, the Fracture System of fracture type reservoir physical model can be completed by step 102 and step 103
The measurement of pore volume.
Step 104, according to it is to be set split storage than and the pore volume of the Fracture System determine the Fractured
The oil mass volume to be placed of the matrix system of physical models of reservoir.
Specifically, since the pore volume of Fracture System is the reserves of Fracture System, according to the definition for splitting storage ratio,
When knowing the reserves for splitting and storing up than (to be placed splits storage ratio) and Fracture System, reserves (the i.e. matrix system of matrix system can be determined
The oil mass volume to be placed of system).
Step 105 uses limited vacuum-saturated mode quantitative according to the oil mass volume to be placed of the matrix system
Make the oil mass in the fractured reservoir physical model, the fractured reservoir physical model that obtains that treated.
Wherein, the oil mass of fractured reservoir physical model is quantitatively controlled by step 105, Fractured is oily so that treated
Hiding physical model splits storage than splitting storage ratio equal to be placed in step 101, to utilize treated fractured reservoir object
The storage of reason Model on Crack for the practical fractured reservoir for splitting storage ratio to be placed than being studied.
Further, the specific embodiment of step 102 can be：Pass through the splitting to initially drying of the vacuum point on bottom edge
Low speed smoothly fills the water in seam property physical models of reservoir, and water can be altered preferentially along Fracture System into so that the water in Fracture System
Position slowly and uniformly rises, and at the same time, a part of water can enter in matrix system since imbibition acts on, when fractured reservoir object
When managing all vacuum points on the top surface of model has solid stream of water output, stop saturation.The fractured reservoir physics mould at this time
Water is filled inside type.
Further, the specific embodiment of step 103 can be：On top surface by fractured reservoir physical model
Multiple vacuum points to the steady gas injection of low speed inside fractured reservoir physical model, open the bottom edge of fractured reservoir physical model
On vacuum point carry out water extraction, at this point, the water inside fractured reservoir physical model can be gradually under the driving effect of gas
It is plucked out of, and since gas phase is the non-wetted phase of matrix system for water phase, so the water in matrix system can not be replaced by gas drive
Out, the water of extraction is Fracture System output, when there is no water for the vacuum point on the bottom edge of fractured reservoir physical model
When output, stops gas drive process, record the volume of output water, the volume of the output water is the pore volume of Fracture System.
The present embodiment, by obtain it is to be placed split storage ratio, and pass through water flooding regime fracture type reservoir physical model
The pore volume of Fracture System measures, and then according to the pore-body for splitting storage ratio and measuring obtained Fracture System to be placed
Product determines the oil mass volume to be placed of matrix system, is used according to the oil mass volume to be placed of matrix system limited vacuum-saturated
Oil mass in mode fracture type reservoir physical model carries out quantitative control, the fractured reservoir physical model that obtains that treated,
Treated the fractured reservoir physical model split storage than be equal to it is to be placed split storage ratio, so that realization quantitatively controls Fractured
Physical models of reservoir splits storage ratio, enables using should treated that fractured reservoir physical model preferably predicts actual oil
Hide development effectiveness.And different split may be implemented for the same fractured reservoir physical model in the method for the embodiment of the present invention
Ratio is stored up, the applicability and utilization rate of physical model are increased.
Several specific embodiments are used below, and the technical solution of embodiment of the method shown in Fig. 1 is described in detail.
Fig. 2 is that fractured reservoir physical model of the present invention splits flow chart of the storage than quantitative control methodin embodiment two, Fig. 3 A
For the schematic perspective view of fractured reservoir physical model, Fig. 3 B is the main view of fractured reservoir physical model, such as Fig. 2 institute
Show, the method for the present embodiment may include：
Step 201 obtains and to be placed splits storage ratio.
Step 202, by the vacuum point on the bottom edge of fractured reservoir physical model into fractured reservoir physical model
Portion fills water.
Step 203, by the vacuum point on the top surface of fractured reservoir physical model to the fractured reservoir physics
Model injects gas, and opens the vacuum point on the bottom edge, inside fractured reservoir physical model described in the gas displacement
Water, produced by vacuum point on the bottom edge, until the vacuum point on the bottom edge stops water outlet, record the body of output water
Product, using the volume of the output water as the pore volume of the Fracture System of the fractured reservoir physical model.
Wherein, step 201 specifically may refer to the step 101 of embodiment illustrated in fig. 1 to the specific embodiment of step 203
To the explanation of step 103, do not repeat one by one herein.It should be noted that the fractured reservoir physics of the embodiment of the present invention
Model split storage than quantitative control methodin be in the experimental stage and non-physical model establishment stage quantitatively control and splits storage ratio, the present invention reality
The fractured reservoir physical model for applying example splits storage can realize different split than quantitative control methodin on the same physical model
Ratio is stored up, can effectively improve the utilization rate of physical model.It will be understood, the method for the embodiment of the present invention can also be with object
The method of reason model foundation combines, and Physical Experiment is carried out in a manner of more closing to reality fractured reservoir, is practical crack
Property flow through oil reservoir mechanism and exploitation law study effective technological means is provided.The fractured reservoir physical model of the embodiment of the present invention
With certain resistance to pressure, the closed percolating medium that is isolated from the outside world is formed, and on the top of fractured reservoir physical model
On surface and multiple vacuum points are provided on bottom edge, these vacuum points are uniform and intensive to be distributed on the grid of crack, specifically may be used
With referring to Fig. 3 A and Fig. 3 B, the vacuum point on multiple bottom edges is evenly distributed on four bottom edges of fractured reservoir physical model,
Vacuum point on multiple top surfaces is evenly distributed on the top surface of fractured reservoir physical model.Equally distributed vacuum point can
The uniformity in the method for the embodiment of the present invention in relation to displacement process is effectively ensured.
Step 204, according to it is to be set split storage than and the pore volume of the Fracture System determine the Fractured
The oil mass volume to be placed of the matrix system of physical models of reservoir.
Wherein, step 204 is specifically as follows：According to formulaDetermine the fractured reservoir physical model
The oil mass volume V to be placed of matrix system2, wherein V1For the pore volume of the Fracture System, λ splits storage for be set
Than.
Step 2051 carries out vacuumizing place by the vacuum point on the top surface to the fractured reservoir physical model
Reason, so that the fractured reservoir physical model is in semi-vacuum state.
Specifically, by the vacuum point fracture type reservoir physical model on the top surface of fractured reservoir physical model into
Row vacuumizes, and air most of in fractured reservoir physical model is extracted, semi-vacuum state is at.
Water is sucked the fractured reservoir physical model using negative pressure by the vacuum point on the bottom edge by step 2052
It is internal.
Specifically, the vacuum point executed on step 2051 and then the bottom edge for passing through fractured reservoir physical model utilizes
Negative pressure sucks water in Fractured physical model.The Fracture System of fractured reservoir physical model is filled with water at this time, and matrix
Sillar periphery in system is the water of saturation, and inside is residual air mass.Later, by step 2053 and step 2054 to Fractured
Saturated oils in physical models of reservoir obtains treated fractured reservoir physical model.
Step 2053 carries out vacuumizing place by the vacuum point on the bottom edge to the fractured reservoir physical model
Reason, until the pore volume that the volume of the water of extraction is equal to the Fracture System adds the oil mass volume to be placed of the matrix system
When, stop vacuumize process.
Specifically, vacuumized by the vacuum point fracture type reservoir physical model on the bottom edge of seam property physical models of reservoir,
It is set to be again introduced into semi-vacuum state.Due to the expansion of the internal residual air mass of the sillar in matrix system, the rock of matrix system
Part water in block can be extracted, while measure extraction water, when extraction water volume is equal to V1Add V2When stop vacuumize.
Oil is sucked the fractured reservoir physical model using negative pressure by the vacuum point on the bottom edge by step 2054
Inside obtains treated fractured reservoir physical model.
Specifically, by the vacuum point on bottom edge using negative pressure by oil sucking fractured reservoir physical model, crack at this time
Property physical models of reservoir Fracture System be initially filled with oil, and the sillar periphery of matrix system is fat oil, and centre is water, internal
It is air mass, i.e., the reserves of matrix system are V at this time2.After above-mentioned steps, should treated fractured reservoir physical model split
Storage is than being λ.
The present embodiment, by obtain it is to be placed split storage ratio, and pass through water flooding regime fracture type reservoir physical model
The pore volume of Fracture System measures, and then according to the pore-body for splitting storage ratio and measuring obtained Fracture System to be placed
Product determines the oil mass volume to be placed of matrix system, by limited vacuum-saturated mode fracture type reservoir physical model
Oil mass carries out controller perturbation, obtains treated fractured reservoir physical model, should treated fractured reservoir physical model
Split storage than be equal to it is to be placed split storage ratio, so that realizes quantitative control fractured reservoir physical model splits storage ratio, so that making
With this, treated that fractured reservoir physical model can preferably predict actual effect of reservoir development.And the embodiment of the present invention
Method for the same fractured reservoir physical model may be implemented it is different split storage ratio, increase the applicability of physical model
And utilization rate.A physical model can be used and realize using the method for the embodiment of the present invention, splitting under the conditions of storage is compared is split to difference
The simulation of seam property oil reservoir.
It should be noted that the method for the embodiment of the present invention is applicable not only to oil field development research field, can also apply
In other research fields related with two phase fluid flow phenomenon in Fractured medium, for example, underground pollution object migration research etc..
Fig. 4 is that fractured reservoir physical model of the present invention splits structural schematic diagram of the storage than quantitative control device embodiment one,
As shown in figure 4, the device of the present embodiment may include：Split storage than obtain module 11, Fracture System pore volume measurements module 12,
Matrix system reserves determining module 13 and matrix system reserves control module 14, wherein split storage than obtaining module 11, for obtaining
To be placed splits storage ratio；Fracture System pore volume measurements module 12, for passing through the bottom edge of fractured reservoir physical model
Vacuum point to filling water inside fractured reservoir physical model；Pass through the vacuum on the top surface of fractured reservoir physical model
Point injects gas to the fractured reservoir physical model, and opens the vacuum point on the bottom edge, described in the gas displacement
Water inside fractured reservoir physical model is produced by the vacuum point on the bottom edge, until the vacuum point on the bottom edge
Stop water outlet, the volume of output water is recorded, using the volume of the output water as the crack of the fractured reservoir physical model
The pore volume of system；Matrix system reserves determining module 13, for according to it is to be set split storage than with the crack system
The pore volume of system determines the oil mass volume to be placed of the matrix system of the fractured reservoir physical model；Matrix system reserves
Control module 14, for controlling the oil mass in the matrix system according to the oil mass volume quantitative to be placed of the matrix system,
Obtain treated fractured reservoir physical model；Wherein, the fractured reservoir physical model includes true on multiple bottom edges
Vacuum point on null point and multiple top surfaces, treated the fractured reservoir physical model to split storage more described wait set than being equal to
That sets splits storage ratio.
Optionally, the matrix system reserves determining module, is specifically used for：
According to formulaDetermine the oil mass volume to be placed of the matrix system of the fractured reservoir physical model
V2, wherein V1For the pore volume of the Fracture System, λ splits storage ratio for be set.
Optionally, the vacuum point on the multiple bottom edge is evenly distributed on four bottoms of the fractured reservoir physical model
Bian Shang；
Vacuum point on the multiple top surface is evenly distributed on the top surface of the fractured reservoir physical model.
The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 1, realization principle and skill
Art effect is similar, and details are not described herein again.
Fig. 5 is that fractured reservoir physical model of the present invention splits structural schematic diagram of the storage than quantitative control device embodiment two,
As shown in figure 5, further, the reserves of matrix system control on the basis of the device of the present embodiment apparatus structure shown in Fig. 4
Module 14 may include：First vacuum module 141, water injection module 142, the second vacuum module 143 and oiling module 144, wherein
First vacuum module 141, it is limited for being carried out by the vacuum point on the top surface to the fractured reservoir physical model
Vacuumize process, so that the fractured reservoir physical model is in semi-vacuum state；Water injection module 142, for by described
Vacuum point on bottom edge is sucked water inside the fractured reservoir physical model using negative pressure；Second vacuum module 143, is used for
Limited vacuumize process is carried out to the fractured reservoir physical model by the vacuum point on the bottom edge, until the water of extraction
Volume be equal to the pore volume of the Fracture System when adding the oil mass volume to be placed of the matrix system, stopping vacuumizes place
Reason；Oiling module 144, for oil to be sucked the fractured reservoir physics mould using negative pressure by the vacuum point on the bottom edge
Inside type, treated fractured reservoir physical model is obtained.
The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 1 or Fig. 2, realize former
Reason is similar with technical effect, and details are not described herein again.
Those of ordinary skill in the art will appreciate that：Realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned includes：ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that：Its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (8)
1. a kind of fractured reservoir physical model, which splits storage, compares quantitative control methodin, which is characterized in that including：
It obtains and to be placed splits storage ratio；
By the vacuum point on the bottom edge of fractured reservoir physical model to filling water inside fractured reservoir physical model；
Gas is injected to the fractured reservoir physical model by the vacuum point on the top surface of fractured reservoir physical model,
And the vacuum point on the bottom edge is opened, the water inside fractured reservoir physical model described in the gas displacement, by described
Vacuum point extraction on bottom edge records the volume of output water, by the output until the vacuum point on the bottom edge stops water outlet
Pore volume of the volume of water as the Fracture System of the fractured reservoir physical model；
The fractured reservoir physical model is determined than the pore volume with the Fracture System according to storage of splitting to be set
Matrix system oil mass volume to be placed；
The Fractured is quantitatively controlled using limited vacuum-saturated mode according to the oil mass volume to be placed of the matrix system
Oil mass in physical models of reservoir obtains treated fractured reservoir physical model；
Wherein, the fractured reservoir physical model includes the vacuum point on multiple bottom edges and the vacuum point on multiple top surfaces,
Treated the fractured reservoir physical model splits storage than splitting storage ratio equal to be set.
2. the method according to claim 1, wherein the oil mass volume to be placed according to the matrix system
The oil mass in the fractured reservoir physical model is quantitatively controlled using limited vacuum-saturated mode, the crack that obtains that treated
Property physical models of reservoir, including：
Limited vacuumize process is carried out to the fractured reservoir physical model by the vacuum point on the top surface, so that institute
It states fractured reservoir physical model and is in semi-vacuum state；
Water is sucked inside the fractured reservoir physical model using negative pressure by the vacuum point on the bottom edge；
Limited vacuumize process is carried out to the fractured reservoir physical model by the vacuum point on the bottom edge, until extraction
Water volume pore volume when adding the oil mass volume to be placed of the matrix system that is equal to the Fracture System, stop taking out true
Vacancy reason；
Oil is sucked inside the fractured reservoir physical model using negative pressure by the vacuum point on the bottom edge, acquisition processing
Fractured reservoir physical model afterwards.
3. method according to claim 1 or 2, which is characterized in that it is described according to it is to be set split storage than with it is described
The pore volume of Fracture System determines the oil mass volume to be placed of the matrix system of the fractured reservoir physical model, including：
According to formulaDetermine the oil mass volume V to be placed of the matrix system of the fractured reservoir physical model2,
In, V1For the pore volume of the Fracture System, λ splits storage ratio for be set.
4. method according to claim 1 or 2, which is characterized in that the vacuum point on the multiple bottom edge is evenly distributed on
On four bottom edges of the fractured reservoir physical model；
Vacuum point on the multiple top surface is evenly distributed on the top surface of the fractured reservoir physical model.
5. a kind of fractured reservoir physical model, which splits storage, compares quantitative control device, which is characterized in that including：
It splits storage than obtaining module, to be placed splits storage ratio for obtaining；
Fracture System pore volume measurements module, for by the vacuum point on the bottom edge of fractured reservoir physical model to crack
Water is filled inside property physical models of reservoir；By the vacuum point on the top surface of fractured reservoir physical model to the Fractured
Physical models of reservoir injects gas, and opens the vacuum point on the bottom edge, fractured reservoir physics described in the gas displacement
Water inside model is produced by the vacuum point on the bottom edge, until the vacuum point on the bottom edge stops water outlet, record is produced
The volume of water outlet, using the volume of the output water as the pore volume of the Fracture System of the fractured reservoir physical model；
Matrix system reserves determining module, it is more true than with the pore volume of the Fracture System for being stored up according to be set splitting
The oil mass volume to be placed of the matrix system of the fixed fractured reservoir physical model；
Matrix system reserves control module, for being saturated according to the oil mass volume to be placed of the matrix system using limited vacuum
Mode quantitatively control the oil mass in the fractured reservoir physical model, the fractured reservoir physical model that obtains that treated；
Wherein, the fractured reservoir physical model includes the vacuum point on multiple bottom edges and the vacuum point on multiple top surfaces,
Treated the fractured reservoir physical model splits storage than splitting storage ratio equal to be set.
6. device according to claim 5, which is characterized in that the matrix system reserves control module specifically includes：
First vacuum module, it is limited for being carried out by the vacuum point on the top surface to the fractured reservoir physical model
Vacuumize process, so that the fractured reservoir physical model is in semi-vacuum state；
Water injection module, for water to be sucked the fractured reservoir physical model using negative pressure by the vacuum point on the bottom edge
It is internal；
Second vacuum module, for carrying out limited pumping to the fractured reservoir physical model by the vacuum point on the bottom edge
It is vacuum-treated, until the pore volume that the volume of the water of extraction is equal to the Fracture System adds the oil to be placed of the matrix system
When measuring volume, stop vacuumize process；
Oiling module, for oil to be sucked the fractured reservoir physical model using negative pressure by the vacuum point on the bottom edge
Inside obtains treated fractured reservoir physical model.
7. device according to claim 5 or 6, which is characterized in that the matrix system reserves determining module is specific to use
In：
According to formulaDetermine the oil mass volume V to be placed of the matrix system of the fractured reservoir physical model2,
In, V1For the pore volume of the Fracture System, λ splits storage ratio for be set.
8. device according to claim 5 or 6, which is characterized in that the vacuum point on the multiple bottom edge is evenly distributed on
On four bottom edges of the fractured reservoir physical model；
Vacuum point on the multiple top surface is evenly distributed on the top surface of the fractured reservoir physical model.
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