CN107165624A - Fractured-cavernous carbonate reservoir three-dimensional large scale physical model and preparation method thereof - Google Patents
Fractured-cavernous carbonate reservoir three-dimensional large scale physical model and preparation method thereof Download PDFInfo
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- CN107165624A CN107165624A CN201710441250.2A CN201710441250A CN107165624A CN 107165624 A CN107165624 A CN 107165624A CN 201710441250 A CN201710441250 A CN 201710441250A CN 107165624 A CN107165624 A CN 107165624A
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- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title claims abstract description 103
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000011435 rock Substances 0.000 claims abstract description 89
- 238000004088 simulation Methods 0.000 claims abstract description 77
- 239000002245 particle Substances 0.000 claims abstract description 14
- 239000004744 fabric Substances 0.000 claims description 23
- 238000012360 testing method Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 9
- 238000005260 corrosion Methods 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000002591 computed tomography Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 239000007790 solid phase Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 5
- 238000005538 encapsulation Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910000634 wood's metal Inorganic materials 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002789 length control Methods 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002352 surface water Substances 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The present invention relates to three-dimensional large scale physical model of a kind of fractured-cavernous carbonate reservoir and preparation method thereof, the model is made up of simulation solution cavity, simulation fracture and constant temperature oven.The carbonate rock that the preparation method is encapsulated after analyzing after tested particular by reactor is appeared simulation solution cavity, passes through pipeline padding and compacting carbonate rock particle simulation crack；Varying number is connected by valve, joint, solution cavity and simulation fracture are simulated in the encapsulation of different spatial, are constituted simulation carbonate rock fractured cave network structure and are installed in constant temperature oven, constitute the three-dimensional large scale physical model of fracture-cavity type carbonate.The present invention can simulate space net structure complicated between fracture hole in fracture-cavity type carbonate oil-gas reservoir actual reservoir, physics, the chemical property of solid phase reservoir rock can be reflected again, the high-temperature and high-pressure conditions of actual reservoir can also be simulated, and well beats the production effect in diverse location.
Description
Technical field
The invention belongs to oil-gas field development technical field, and in particular to a kind of three-dimensional large scale of fractured-cavernous carbonate reservoir
Physical model and preparation method thereof.
Background technology
Fractured-cavernous carbonate reservoir is cooperatively formed through many phase tectonic movements with ancient karst, its reservoir development by
The influence of a variety of effects such as deposition, diagenesis, construction, ancient landform, ancient karst.Fracture-cavity type carbonate reservoir is in crack elimination
On the basis of, contain CO2Surface water and after acidic groundwater generates many solution cavities along crack corrosion, the fracture hole of formation
Type reservoir.There is the presence of corrosion hole in general existing crack again in reservoir, and wherein solution cavity and hole is main reservoir space, is split
Stitch as main seepage channel, matrix is typically considered impervious.
Fracture-cavity type carbonate reservoir is difficult to shape due to its unique seam hole structure, Reservoir Section rock core, it is difficult to drill through tool
There is the natural core of complete seam hole structure, limit the development of fractured-cavernous carbonate reservoir physical simulation experiment, hinder seam
The research of hole type Carbonate Reservoir flow of fluid rule.
At present, existing fracture-cavity type carbonate physical model is main to include two-dimentional thing in addition to traditional plunger rock core
Manage model and three-dimensional physical model.Two-dimensional physical model is generally the planar structure of small size, and solid skeletal is generally glass plate, because
This model can not reflect the physico-chemical property of true stratum pore surface, it is impossible to the effect between Study of Fluid and rock solid phase, and not
The high-temperature and high-pressure conditions of actual reservoir can be born.
Existing three-dimensional physical model, it is also more or less to there are problems that.2009, human relations increased Min et al. and disclosed
(application publication number CN102053026 A) one kind calcite, dolomite etc. makees framework material, and Wood's metal or paraffin are as splitting
There is problems with the three-dimensional physical model of the material of main part of seam and solution cavity, this method：(1) quality of Wood's metal and paraffin compared with
It is soft, in filling compacting framework material, generation physical deformation can be squeezed unavoidably so that crack and solution cavity form generation change
Become；(2) liquid paraffin acts on solid phase surface, will certainly influence solid phase surface to the wetability of fluid., Hou Jirui etc. in 2015
People discloses (A of application publication number CN 105178926) one kind polytetrafluoroethylene (PTFE) pipeline simulation fracture, with acrylic material
Cavity filling quartz sand simulates the three-dimensional physical model of solution cavity, can not be anti-although the model can simulate fracture hole spatial network
The surface nature of reservoir rock is answered, the interaction between reservoir fluid and rock solid phase is have ignored.2016, Li Hui et al. was carried
Go out (application publication number:CN105904573 A) 3D printing technique is applied, print three using the quartz sand of molten state as framework material
Physical model is tieed up, this method is also problematic：(1) quartz sand is not the main component of carbonate rock, differed with its property compared with
Greatly, it is impossible to react the property of natural rock.(2) framework material printed using molten condition quartz, it is impossible to simulate carbonic acid
Arbitrariness of the natural corrosion hole of rock salt in spatial distribution；(3) the not yet popularization and application at present of 3D printing technique used in.
In consideration of it, scientific research experience and engineering of this experiment team by long campaigns oil-gas field development and physical simulation experiment
Practice, it is proposed that a kind of three-dimensional large scale physical model of new fractured-cavernous carbonate reservoir, to make up lacking for prior art
Fall into and deficiency.
The content of the invention
In order to overcome the shortcomings and deficiencies of existing fractured-cavernous carbonate reservoir physical model, the present invention provided one kind both
Space net structure complicated between fracture hole in fracture-cavity type carbonate oil-gas reservoir actual reservoir can be simulated, solid phase reservoir can be reflected again
The physics of rock, chemical property, moreover it is possible to which the high-temperature and high-pressure conditions and well for simulating actual reservoir play production in diverse location
Three-dimensional large scale physical model of the fractured-cavernous carbonate reservoir of effect and preparation method thereof.
Technical scheme is as follows：
The three-dimensional large scale physical model of above-mentioned fractured-cavernous carbonate reservoir, is by simulation solution cavity, simulation fracture and perseverance
Warm baking oven composition；The simulation solution cavity is made up of reactor and carbonate rock rock core of appearing；The carbonate rock appear rock core tool
There is natural corrosion hole, it is tested by wetability, after mineralogical composition test and CT scan analysis, and cutting forming is encased in described
In reactor；The both ends of the surface envelope of the reactor has the reactor screen cloth of sand control；The simulation fracture is by pipeline and carbonate
Rock particle is constituted；In the carbonate rock grain packing to the pipeline and it is compacted；The end seal of pipeline two has pipeline screen cloth；Institute
The side for stating constant temperature oven is provided with back-pressure valve, and its accommodated inside has the simulation solution cavity and the simulation fracture；The back pressure
Valve is connected with outlet line；The simulation solution cavity is connected by the simulation fracture each other, the simulation fracture with it is each
Connected between the simulation solution cavity by valve.
The three-dimensional large scale physical model of the fractured-cavernous carbonate reservoir, wherein：The reactor screen cloth is 500 mesh sieves
Net.
The three-dimensional large scale physical model of the fractured-cavernous carbonate reservoir, wherein：The pipeline is internal diameter 3mm high pressure
Steel pipeline.
The three-dimensional large scale physical model of the fractured-cavernous carbonate reservoir, wherein：The outlet line is internal diameter 2mm's
High pressure steel outlet line.
A kind of preparation method of the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir, specifically includes following steps：
(1) the different locations in river shoal find selection and form the big of corrosion hole with flowing water or other natural factors in the wild
Size carbonate rock is appeared；
(2) rock core of being appeared to the carbonate rock in above-mentioned steps (1) carries out wetability test, and mineralogical composition test and CT are swept
Retouch analysis；
(3) appear rock core information and reservoir core data of the carbonate rock that test analysis is crossed in above-mentioned steps (2) is carried out
Contrast, the carbonate rock of actual reservoir can be represented and appear rock core by picking out；
(4) carbonate rock that will be singled out rock core of appearing cuts into the size suitable with reactor inside dimension, then will
It is encapsulated into reactor, and the encapsulated reaction kettle screen cloth on two end faces of reactor, constitutes simulation solution cavity；
(5) it will crush the remaining carbonate rock of the cutting size-reduced machine of rock core leftover pieces of appearing in above-mentioned steps (4), vibratory sieve
Screening obtains the carbonate rock particle of different-grain diameter；
(6) the carbonate rock particle of different-grain diameter in above-mentioned steps (5) is in the light of actual conditions chosen, filling is compacted to pipeline
In, and pipeline screen cloth is encapsulated at pipeline two ends, constitute simulation fracture；
(7) according to actual needs with the simulation solution cavity and above-mentioned steps (6) in valve, joint connection above-mentioned steps (4)
Simulation fracture with constitute simulation carbonate rock fractured cave network；
(8) the simulation carbonate rock fractured cave network in above-mentioned steps (7) is installed to high temperature oven space by actual conditions
The middle three-dimensional large scale physical model of composition fractured-cavernous carbonate reservoir, is simulated outside carbonate rock fractured cave network structure and high temperature
Non-interconnected space within baking oven is equivalent to impervious carbonate rock matrix.
The preparation method of the three-dimensional large scale physical model of the fractured-cavernous carbonate reservoir, wherein：In the step (4)
Reactor screen cloth be 500 mesh screen cloth.
The preparation method of the three-dimensional large scale physical model of the fractured-cavernous carbonate reservoir, wherein：In the step (6)
Pipeline internal diameter be 3mm；The pipeline screen cloth is the screen cloth of 500 mesh.
Beneficial effect：
The three-dimensional large scale physical model structure design of fractured-cavernous carbonate reservoir of the present invention is simple, reasonable, can simulate
Space net structure complicated between fracture hole, can reflect solid phase reservoir rock again in fracture-cavity type carbonate oil-gas reservoir actual reservoir
Physics, chemical property, moreover it is possible to simulate the high-temperature and high-pressure conditions of actual reservoir, and well beats the production effect in diverse location.
The preparation method reasonable idea of the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir of the present invention, operating process
Simply, the three-dimensional large scale physical model dismounting of fracture-cavity type carbonate prepared is easy to assembly, widely used, can simulate
Real fracture-cavity type carbonate reservoir structure, can provide reliable physics for fractured-cavernous carbonate reservoir physical simulation experiment
Model.
Brief description of the drawings
Fig. 1 is that the simple of the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir of the present invention is connected in series schematic diagram；
Fig. 2 is the section on the simulation solution cavity axial direction of the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir of the present invention
Figure；
Fig. 3 be the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir of the present invention simulation cavern water square it is upward certain
One layer of profile；
Fig. 4 is the section on the simulation fracture axial direction of the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir of the present invention
Figure；
Fig. 5 is the simulation fracture radially a certain layer of fractured-cavernous carbonate reservoir of the present invention three-dimensional large scale physical model
Profile；
Fig. 6 is the corresponding actual reservoir diagrammatic cross-section of model in Fig. 1.
Description of reference numerals：1. solution cavity is simulated, 2. simulation fractures, 3. constant temperature ovens, 4. high pressure steel outlet lines, 5. connect
Connect valve, 6. larger actual reservoir solution cavities, 7. less actual reservoir solution cavities, 8. actual reservoir cracks, 9. actual pit shafts,
11. reactor, 12. carbonate rocks are appeared rock core, 13. reactor screen clothes, 121. natural corrosion holes, 21. high pressure steel pipelines,
22. carbonate rock particle, 23. pipeline screen clothes, 31. back-pressure valves.
Embodiment
As shown in figure 1, the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir of the present invention, is by simulation solution cavity 1, mould
Intend crack 2 and constant temperature oven 3 is constituted.
As shown in FIG. 1 to 3, the simulation solution cavity 1 is made up of reactor 11 and carbonate rock rock core 12 of appearing；The reactor
11 be high-temperature high-pressure reaction kettle；The carbonate rock appear rock core 12 be taken from field and with natural corrosion hole 121 big chi
Very little carbonate rock is appeared, and it is tested by wetability, after mineralogical composition test and CT scan analysis, and cutting forming is encased in reaction
In kettle 11, and the sand control of reactor screen cloth 13 is sealed up in the both ends of the surface of reactor 11；The reactor screen cloth 13 is 500 eye mesh screens.
As shown in Fig. 4~Fig. 5, the simulation fracture 2 is made up of internal diameter for 3mm high pressure steel pipeline 21 and certain particle size
Carbonate rock particle 22 is constituted；The carbonate rock particle 22 is fills up in pipeline 21 and is compacted；Seal up pipeline in the two ends of pipeline 21
Screen cloth 23.
As shown in figure 1, the side of constant temperature oven 3 is provided with back-pressure valve 31；The accommodated inside of the constant temperature oven of this in the present embodiment 3
There are small one and large one two simulation solution cavities 1 and a simulation fracture 2 to constitute simulation carbonate rock fractured cave network；One of simulation
Solution cavity 1 is connected by internal diameter for 2mm high pressure steel outlet line 4 with the back-pressure valve 31 of constant temperature oven 3；This pair of simulation solution cavities
Connected, connected between simulation fracture 2 and each simulation solution cavity 1 by connecting valve 5 by simulation fracture 2 between 1.
The permeability of the simulation fracture 2 can be by adjusting the granularmetric composition of carbonate rock particle 22 and changing high pressure steel
The length control of pipeline 21, the seam length of the simulation fracture 2 can be controlled by adjusting the length of pipeline 21, the simulation fracture 2
The tortuous degree of crook control that can adjust the simulation fracture 2.Can by adjust simulation solution cavity 1 and simulation fracture 2 quantity,
Simulated with the connected mode of simulation fracture 2 locus and simulation solution cavity 1 of the adjustment simulation solution cavity 1 in constant temperature oven 3
Space connected relation complicated between fracture hole in actual reservoir.It can also be connected by different positions in fractured-porous reservoir network
Six-way valve is linked into outlet line 4, the diverse location production that simulated production well is beaten in seam_cavern type.Physical model in Fig. 1
It is that small one and large one two simulation solution cavities 1 are connected in series by simulation fracture 2 by connecting valve 5, and producing well is beaten in smaller simulation
On solution cavity 1.
Actual reservoir diagrammatic cross-section in Fig. 6 is the three-dimensional large scale physical model of simple fracture hole tandem type in Fig. 1
Reservoir prototype.Wherein small one and large one two actual reservoir solution cavity 6 and 7 is the prototype of two simulation solution cavities 1 in Fig. 5；Reservoir Fracture 8
It is the prototype of simulation fracture 2, pit shaft 9 is the prototype of outlet line 4.
A kind of preparation method of the three-dimensional large scale physical model of fracture-cavity type carbonate, specifically includes following steps：
(1) the different locations in river shoal find selection and form the big of corrosion hole with flowing water or other natural factors in the wild
Size carbonate rock is appeared；
(2) rock core of being appeared to the carbonate rock in step (1) carries out wetability test, mineralogical composition test and CT scan point
Analysis；
(3) carbonate rock that test analysis is crossed in step (2) rock core information of appearing is contrasted with reservoir core data,
The carbonate rock of actual reservoir can be represented and appear rock core by picking out；
(4) carbonate rock that will be singled out rock core of appearing cuts into the size suitable with reactor inside dimension, then will
It is encapsulated into reactor, and encapsulates the screen cloth of 500 mesh on two end faces of reactor, constitutes simulation solution cavity；
(5) it will crush the remaining carbonate rock of the cutting size-reduced machine of rock core leftover pieces of appearing in step (4), vibratory sieve screening
Obtain the carbonate rock particle of different-grain diameter；
(6) in the light of actual conditions in selecting step (5) different-grain diameter carbonate rock particle, filling is compacted to internal diameter and is
In 3mm pipeline, and the screen cloth of 500 mesh is encapsulated at pipeline two ends, constitute simulation fracture；
(7) connected according to actual needs with valve, joint in simulation solution cavity and some steps (6) in some steps (4)
Simulation fracture constitute simulation carbonate rock fractured cave network；
(8) the simulation carbonate rock fractured cave network in step (7) is installed to group in high temperature oven space by actual conditions
Into the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir, simulate outside carbonate rock fractured cave network structure and high temperature oven
Within non-interconnected space equivalent to impervious carbonate rock matrix.
The present invention can simulate space net structure complicated between fracture hole in fracture-cavity type carbonate oil-gas reservoir actual reservoir,
Physics, the chemical property of solid phase reservoir rock can be reflected again, moreover it is possible to simulate the high-temperature and high-pressure conditions of actual reservoir, and well is beaten
Production effect during diverse location.
Embodiment of the invention schematical a certain is above are only, not for limiting the patent model of the present invention
Enclose.Equivalents or change that any one of skill in the art is proposed on the premise of the design of the present invention and principle is not departed from
Enter, all should belong within protection scope of the present invention.
Claims (7)
1. the three-dimensional large scale physical model of a kind of fractured-cavernous carbonate reservoir, it is characterised in that split by simulation solution cavity, simulation
Seam and constant temperature oven composition；
The simulation solution cavity is made up of reactor and carbonate rock rock core of appearing；The carbonate rock appears rock core with natural molten
Pit hole, it is tested by wetability, after mineralogical composition test and CT scan analysis, and cutting forming is encased in the reactor
In；The both ends of the surface envelope of the reactor has the reactor screen cloth of sand control；
The simulation fracture is made up of pipeline and carbonate rock particle；In the carbonate rock grain packing to the pipeline and press
It is real；The end seal of pipeline two has pipeline screen cloth；
The side of the constant temperature oven is provided with back-pressure valve, and its accommodated inside has the simulation solution cavity and the simulation fracture；Institute
Back-pressure valve is stated to be connected with outlet line；The simulation solution cavity is connected by the simulation fracture each other, the simulation fracture
It is connected between each simulation solution cavity by valve.
2. the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir as claimed in claim 1, it is characterised in that：It is described anti-
It is 500 eye mesh screens to answer kettle screen cloth.
3. the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir as claimed in claim 1, it is characterised in that：The pipe
Line is internal diameter 3mm high pressure steel pipeline.
4. the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir as claimed in claim 1, it is characterised in that：It is described go out
The high pressure steel outlet line that mouth pipeline is internal diameter 2mm.
5. a kind of preparation method of the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir as claimed in claim 1, its
It is characterised by, specifically includes following steps：
(1) large scale chosen with flowing water or other natural factors formation corrosion hole is found in the different locations in river shoal in the wild
Carbonate rock is appeared；
(2) rock core of being appeared to the carbonate rock in above-mentioned steps (1) carries out wetability test, mineralogical composition test and CT scan point
Analysis；
(3) carbonate rock that test analysis is crossed in above-mentioned steps (2) rock core information of appearing is contrasted with reservoir core data,
The carbonate rock of actual reservoir can be represented and appear rock core by picking out；
(4) carbonate rock that will be singled out rock core of appearing cuts into the size suitable with reactor inside dimension, then by its envelope
It is attached in reactor, and the encapsulated reaction kettle screen cloth on two end faces of reactor, constitute simulation solution cavity；
(5) it will crush the remaining carbonate rock of the cutting size-reduced machine of rock core leftover pieces of appearing in above-mentioned steps (4), vibratory sieve screening
Obtain the carbonate rock particle of different-grain diameter；
(6) the carbonate rock particle of different-grain diameter in above-mentioned steps (5) is in the light of actual conditions chosen, filling is compacted in pipeline,
And pipeline screen cloth is encapsulated at pipeline two ends, constitute simulation fracture；
(7) according to actual needs with the mould in the simulation solution cavity and above-mentioned steps (6) in valve, joint connection above-mentioned steps (4)
Intend crack to constitute simulation carbonate rock fractured cave network；
(8) the simulation carbonate rock fractured cave network in above-mentioned steps (7) is installed to group in high temperature oven space by actual conditions
Into the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir, simulate outside carbonate rock fractured cave network structure and high temperature oven
Within non-interconnected space equivalent to impervious carbonate rock matrix.
6. the preparation method of the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir as claimed in claim 5, its feature
It is：Reactor screen cloth in the step (4) is the screen cloth of 500 mesh.
7. the preparation method of the three-dimensional large scale physical model of fractured-cavernous carbonate reservoir as claimed in claim 5, its feature
It is：Pipeline internal diameter in the step (6) is 3mm；The pipeline screen cloth is the screen cloth of 500 mesh.
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| CN201710441250.2A CN107165624B (en) | 2017-06-13 | 2017-06-13 | Three-dimensional large-size physical model of fracture-cave carbonate reservoir and preparation method thereof |
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| CN201710441250.2A CN107165624B (en) | 2017-06-13 | 2017-06-13 | Three-dimensional large-size physical model of fracture-cave carbonate reservoir and preparation method thereof |
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| CN107165624B CN107165624B (en) | 2023-04-11 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533211A (en) * | 2018-05-10 | 2018-09-14 | 中国石油集团川庆钻探工程有限公司 | Complex formation leakage channel simulation device |
| CN108891018A (en) * | 2018-06-28 | 2018-11-27 | 西南石油大学 | The fast preparation method of microscopic seepage physical model based on 3D printing technique |
| CN110174343A (en) * | 2019-06-17 | 2019-08-27 | 长江大学 | One kind storing up recharge water seepage simulation model for carbonate rock heat |
| CN110714756A (en) * | 2019-11-21 | 2020-01-21 | 西南石油大学 | High-temperature high-pressure X-CT scanning fracture-cave physical model |
| CN110847900A (en) * | 2019-11-26 | 2020-02-28 | 中国地质大学（北京） | Simulation device for carbonate rock sedimentary reservoir research |
| CN111119873A (en) * | 2018-10-31 | 2020-05-08 | 中国石油化工股份有限公司 | Fracture-cavity type rock stratum high-pressure simulation experiment device and method |
| CN113049321A (en) * | 2019-12-26 | 2021-06-29 | 中国石油天然气股份有限公司 | Preparation method of reservoir model and reservoir model |
| CN113738351A (en) * | 2021-09-25 | 2021-12-03 | 西南石油大学 | Manufacturing method and experimental method of fracture body oil reservoir physical model |
| CN114109378A (en) * | 2021-11-29 | 2022-03-01 | 常州大学 | Experimental device and method system capable of simulating complex reservoir well testing analysis in series-parallel mode |
| CN114427997A (en) * | 2020-09-25 | 2022-05-03 | 中国石油化工股份有限公司 | Method for manufacturing fracture-cave core model, fracture-cave core model and water flooding experiment method |
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| CN115452679A (en) * | 2022-10-18 | 2022-12-09 | 西南石油大学 | Simulation experiment device and experiment method for migration of oil gas along carbonate rock cracks |
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