CN203685173U - Seam cave type carbonate reservoir three-dimensional macro simulation and physical simulation experiment device - Google Patents
Seam cave type carbonate reservoir three-dimensional macro simulation and physical simulation experiment device Download PDFInfo
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- CN203685173U CN203685173U CN201420031032.3U CN201420031032U CN203685173U CN 203685173 U CN203685173 U CN 203685173U CN 201420031032 U CN201420031032 U CN 201420031032U CN 203685173 U CN203685173 U CN 203685173U
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- 238000004088 simulation Methods 0.000 title claims abstract description 26
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title claims abstract description 18
- 238000002474 experimental method Methods 0.000 claims abstract description 25
- 239000003822 epoxy resin Substances 0.000 claims abstract description 13
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims abstract description 10
- 239000011435 rock Substances 0.000 claims description 52
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 19
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 7
- 239000006004 Quartz sand Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000011161 development Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 235000019994 cava Nutrition 0.000 abstract 4
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000018109 developmental process Effects 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The utility model discloses a seam cave type carbonate reservoir three-dimensional macro simulation and physical simulation experiment device. The experiment device comprises a core model and a displacement system. The core model comprises a model body and a ring cylinder, wherein the position between the model body and the ring cylinder is cast with epoxy resin; the model body is formed by splicing a plurality of cylindrical core bodies in axial sequence; each cylindrical core body is provided with a plurality of describing caves simulating actual caves and describing cracks simulating actual cracks; the describing caves are communicated through the describing cracks; at least a pair of describing caves or a pair of describing cracks or a describing cave or a describing crack is communicated between every two adjacent cylindrical core bodies; the top of the model body is provided with a plurality of simulation shafts; the bottom of the model body is provided with a plurality of bottom water pipelines. The experiment device can represent the seam cave structure in the real stratum, a multi-well injection and production well net is built, the seam cave type reservoir development dynamic state and rule under multiple development modes are simulated, and different development modes and the method for improving the recovery efficiency are evaluated.
Description
Technical field
The utility model is about a kind of reservoir physical simulation device, relates in particular to a kind of seam hole type Carbonate Reservoir three-dimensional and macroscopical emulated physics analogue experiment installation.
Background technology
Ordovician Reservoir of Tahe Oilfield is typical fracture and vug carbonate reservoir, has notable difference with general porosity oil reservoir and Fracture-Pore oil reservoir.Its storage is oozed space and is mainly made up of the crack of solution cavity not of uniform size and different in width, and wherein, solution cavity is topmost reservoir space, and the effect of seepage channel is mainly brought into play in crack.Seam hole type oil reservoir is due to the erratic behavior of seam hole syntagmatic, make its interior oil water flow feature there is stronger complexity, in large seam hole body, fluid is mainly pipe stream fluidised form, and near wellbore zone and micro hole seam,, mainly take seepage flow as main, the complexity of this seam hole syntagmatic and flowing law has also been brought larger difficulty to indoor physical simulation.
For seam hole type Carbonate Reservoir physical simulating device, be mainly for single seam hole syntagmatic at present, make hole and realize by artificial or natural core being made to seam.The geometric properties that these models reduction solution cavities, the complicated form of fissured structure differ greatly, the physical phenomenon serious distortion that causes simulated experiment to be observed.This mode can only obtain the profit flowing relation under the combination of specific seam hole, cannot reproduce true oil reservoir seam hole structure current downflow feature; Existing etching model can reach certain reservoir structure similitude, but the experimental error that the less edge effect of moulded dimension brings increases greatly.Thereby be difficult to by experimental result be generalized to whole oil reservoir and guide mining site produce.
Thus, the inventor relies on experience and the practice of being engaged in for many years relevant industries, proposes a kind of seam hole type Carbonate Reservoir three-dimensional and macroscopical emulated physics analogue experiment installation, to overcome the defect of prior art.
Utility model content
The purpose of this utility model is to provide a kind of seam hole type Carbonate Reservoir three-dimensional and macroscopical emulated physics analogue experiment installation, with profit three-dimensional characteristics under the structure of the complicated seam of true reappearance hole, obtain the objectivity understanding of profit flowing law under true formation condition and different development schemes and raising recovery ratio method are carried out to objective evaluation.
The purpose of this utility model is achieved in that a kind of seam hole type Carbonate Reservoir three-dimensional and macroscopical emulated physics analogue experiment installation, and described analogue experiment installation includes rock core model and the displacement system being connected with rock core model;
Described rock core model includes model main body and is arranged on the ring cylinder in model main body outside; Described ring cylinder, for the iron hoop that two ends connect, is cast with epoxy resin between model main body wall and iron hoop; The top of model main body and bottom are also by epoxy resin sealing; Described model main body forms by the cylindric rock core of polylith is sequentially bonding vertically; On described every block of cylindric rock core, be respectively equipped with the crack of portraying of portraying solution cavity and the actual crack of simulation of the actual solution cavity of multiple simulations, portray between solution cavity and be communicated with by portraying crack; Between two blocks of adjacent cylindric rock cores, have at least and a pair ofly portray solution cavity or a pair ofly portray crack or one and portray solution cavity and portray crack mutual conduction; Described portray solution cavity and portray in crack, be filled with quartz sand; The top of described model main body is provided with multiple simulation wellbore holes, and the bottom of model main body is provided with waterpipe of multiple ends; Described simulation wellbore hole and end waterpipe respectively with portray solution cavity and be connected; Described displacement system is connected in simulation wellbore hole and end waterpipe.
In a preferred embodiments of the present utility model, the diameter of described cylindric rock core is greater than its thickness.
In a preferred embodiments of the present utility model, described cylindric rock core is the artificial cement rock core that mixes by a certain percentage compacting with calcium carbonate powder and quartz sand; Cylindric core diameter is 400.00mm, and thickness is 56.00mm.
In a preferred embodiments of the present utility model, described model main body forms by six blocks of cylindric rock cores are bonding.
In a preferred embodiments of the present utility model, described displacement system includes high pressure constant pressure and flow pump, gas flowmeter, gas cylinder, intermediate receptacle, foam maker, six-way valve and connecting line.
From the above mentioned, the utility model seam hole type Carbonate Reservoir three-dimensional and macroscopical emulated physics analogue experiment installation can at utmost reproduce Zhong Feng hole, true stratum structure, set up multiwell flooding pattern, can be to stitching hole type oil reservoir production performance under the multiple development mode including bottom water drive and rule is simulated, to different development schemes and improve recovery ratio method and carry out objective evaluation.This analogue experiment installation can complete water drive, gas drive, foam flooding, polymer flooding, weak gel and the experiment such as drive.
Accompanying drawing explanation
The following drawings is only intended to the utility model to schematically illustrate and explain, does not limit scope of the present utility model.Wherein:
Fig. 1: be the structural representation of model main body in the utility model.
Fig. 2: be the structural representation of the utility model seam hole type Carbonate Reservoir three-dimensional and macroscopical emulated physics analogue experiment installation.
Fig. 3: be the plan structure schematic diagram of Fig. 2.
Fig. 4: be the structural representation of looking up of Fig. 2.
Fig. 5: be the structural representation of cylindric rock core in the utility model.
Fig. 6～Figure 11: the structural representation that is respectively the cylindric rock core of the extremely top layer of the bottom in the utility model.
The specific embodiment
Understand for technical characterictic of the present utility model, object and effect being had more clearly, now contrast accompanying drawing the specific embodiment of the present utility model is described.
As shown in Figure 1 to 4, the utility model proposes a kind of seam hole type Carbonate Reservoir three-dimensional and macroscopical emulated physics analogue experiment installation 1000, described analogue experiment installation 1000 includes rock core model 100 and the displacement system (not shown) being connected with rock core model 100;
Described rock core model 100 includes model main body 1 and is arranged on the ring cylinder 2 in model main body 1 outside; Described ring cylinder 2, for the iron hoop that two ends connect, is cast with epoxy resin 3 between model main body 1 sidewall and iron hoop 2; The top of model main body 1 and bottom are also by epoxy resin 3 sealing; As shown in Figure 1, described model main body 1 forms by the cylindric rock core of polylith is sequentially bonding vertically; In the present embodiment, described model main body 1 sequentially forms by six blocks of cylindric rock cores 11,12,13,14,15 and 16 are bonding from bottom to up.
As shown in Fig. 6～Figure 11, on described every block of cylindric rock core, be respectively equipped with the actual solution cavity of multiple simulations portray solution cavity 111,121,131,141,151,161 and simulate actual crack portray crack 112,122,132,142,152,162, in every block of cylindric rock core, portray between solution cavity and be communicated with by portraying crack; Between two blocks of adjacent cylindric rock cores, have at least and a pair ofly portray solution cavity or a pair ofly portray crack or one and portray solution cavity and portray crack mutual conduction; Take adjacent cylindric rock core 11 and 12 as example, between two blocks of rock cores, have at least one to portray solution cavity 111 and portray solution cavity 121 and form the solution cavity of portraying of a pair of mutual conduction with another, or have at least one to portray crack 112 and another crack of portraying of portraying crack 122 and form a pair of mutual conduction, can be also that of portraying in solution cavity 111 and cylindric rock core 12 in cylindric rock core 11 portrays crack 122 and forms mutual conduction (the connection situation between other adjacent rock core is identical therewith).The described solution cavity of respectively portraying is filled with quartz sand with portraying in crack, with the effect of the rubble filling in Reality simulation stratum; The top of described model main body 1 is provided with multiple simulation wellbore holes 4, and the bottom of model main body 1 is provided with waterpipe of multiple ends 5; Described simulation wellbore hole 4 and end waterpipe 5 respectively with portray solution cavity and be connected; Described displacement system is connected in simulation wellbore hole 4 and end waterpipe 5.In the present embodiment, described displacement system includes high pressure constant pressure and flow pump, gas flowmeter, gas cylinder, intermediate receptacle, foam maker, six-way valve and connecting line etc., and (its connected mode requires to be connected according to specific experiment, this part is prior art, repeats no more).
From the above mentioned, the utility model seam hole type Carbonate Reservoir three-dimensional and macroscopical emulated physics analogue experiment installation can at utmost reproduce Zhong Feng hole, true stratum structure, set up multiwell flooding pattern, can be to stitching hole type oil reservoir production performance under the multiple development mode including bottom water drive and rule is simulated, to different development schemes and improve recovery ratio method and carry out objective evaluation.This analogue experiment installation can complete water drive, gas drive, foam flooding, polymer flooding, weak gel and the experiment such as drive.
Further, in the present embodiment, the diameter of described cylindric rock core is much larger than its thickness; As shown in Figure 5, take cylindric rock core 11 as example, its diameter is 400.00mm, and thickness is 56.00mm.
Described cylindric rock core is the artificial cement rock core that mixes by a certain percentage compacting with calcium carbonate powder and quartz sand; Cylindric rock core is to make with 5.5MPa pressure; Suppress after 1 hour, each cylindric rock core stitched to hole and portray, afterwards in baking oven heat ageing 24 hours to the complete cementation solidifying of rock core.
Then, six stacking being bonded into one of circular disking are formed to the model main body with three-dimensional seam hole structure.When bonding, first the cushion block of cylindric rock core 11 use 1cm*1cm*1cm is paved and is placed in the ring mould that diameter is 42cm, utilize epoxy resin by the sealing of casting of the bottom surface of cylindric rock core 11, profit uses the same method to the sealing of casting of the end face of cylindric rock core 16.
The not casting of cylindric rock core 11 faces up, and on this rock core face, is coated with the epoxy resin thin layer of one deck by the preparation of Mannich modified amine T31 curing compound, according to rock core designing requirement, cylindric rock core 12 is placed in to cylindric rock core 11 tops, alignment, bonding.Repeat aforesaid operations until by all bonding cylindric rock core 11～16, obtain complete solid seam hole structure.In the rock core adhesion process of every one deck, in opposite joint hole, fill quartz sand with the rubble filling effect in Reality simulation stratum.
Model main body is bonding complete after, model main body after bonding is placed in to the circular iron hoop that a diameter is 45cm, use the epoxy resin of being prepared by the dibutyl ester sealing of casting, place aging 24 hours at normal temperatures, make model main body and iron hoop cast and form unified entirety by epoxy resin.
Finally, end water inlet and simulation wellbore hole are installed.According to design well location, embed base in relevant position, rock core model top, the iron pipe that is 3mm by diameter by base pierces model, and iron pipe one end is stretched in the solid seam hole structure of model main body, the other end is stayed outside model and two-port valve is housed, with simulation oil well pit shaft.Treat that simulation wellbore hole placement is complete, recycling epoxy resin casts to fix to base.Profit uses the same method and gets out five holes in the relevant position, bottom of rock core model, inserts iron pipe and the base that diameter is 3mm and uses epoxy resin sealing, by base, can connect end water pipeline, as the entrance of water at the bottom of model.
The foregoing is only the schematic specific embodiment of the utility model, not in order to limit scope of the present utility model.Any those skilled in the art, is not departing from equivalent variations and the modification under the prerequisite of design of the present utility model and principle, done, all should belong to the scope of the utility model protection.
Claims (5)
1. a seam hole type Carbonate Reservoir three-dimensional and macroscopical emulated physics analogue experiment installation, is characterized in that: described analogue experiment installation includes rock core model and the displacement system being connected with rock core model;
Described rock core model includes model main body and is arranged on the ring cylinder in model main body outside; Described ring cylinder, for the iron hoop that two ends connect, is cast with epoxy resin between model main body wall and iron hoop; The top of model main body and bottom are also by epoxy resin sealing; Described model main body forms by the cylindric rock core of polylith is sequentially bonding vertically; On described every block of cylindric rock core, be respectively equipped with the crack of portraying of portraying solution cavity and the actual crack of simulation of the actual solution cavity of multiple simulations, portray between solution cavity and be communicated with by portraying crack; Between two blocks of adjacent cylindric rock cores, have at least and a pair ofly portray solution cavity or a pair ofly portray crack or one and portray solution cavity and portray crack mutual conduction; Described portray solution cavity and portray in crack, be filled with quartz sand; The top of described model main body is provided with multiple simulation wellbore holes, and the bottom of model main body is provided with waterpipe of multiple ends; Described simulation wellbore hole and end waterpipe respectively with portray solution cavity and be connected; Described displacement system is connected in simulation wellbore hole and end waterpipe.
2. seam as claimed in claim 1 hole type Carbonate Reservoir three-dimensional and macroscopical emulated physics analogue experiment installation, is characterized in that: the diameter of described cylindric rock core is greater than its thickness.
3. seam as claimed in claim 1 hole type Carbonate Reservoir three-dimensional and macroscopical emulated physics analogue experiment installation, is characterized in that: cylindric core diameter is 400.00mm, and thickness is 56.00mm.
4. seam as claimed in claim 1 hole type Carbonate Reservoir three-dimensional and macroscopical emulated physics analogue experiment installation, is characterized in that: described model main body forms by six blocks of cylindric rock cores are bonding.
5. seam as claimed in claim 1 hole type Carbonate Reservoir three-dimensional and macroscopical emulated physics analogue experiment installation, is characterized in that: described displacement system includes high pressure constant pressure and flow pump, gas flowmeter, gas cylinder, intermediate receptacle, foam maker, six-way valve and connecting line.
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| CN201420031032.3U CN203685173U (en) | 2014-01-17 | 2014-01-17 | Seam cave type carbonate reservoir three-dimensional macro simulation and physical simulation experiment device |
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| CN104763391A (en) * | 2015-02-26 | 2015-07-08 | 西南石油大学 | Fracture-cavity type oil and gas reservoir natural driving energy three-dimensional simulation experiment set |
| CN105134188A (en) * | 2015-08-21 | 2015-12-09 | 中国石油大学(北京) | Huff-puff physical simulation experiment device for fracture-cavern type carbonate rock |
| CN105178927A (en) * | 2015-10-28 | 2015-12-23 | 中国石油大学(北京) | Displacement simulation experimental device and system |
| CN105178926A (en) * | 2015-10-28 | 2015-12-23 | 中国石油大学(北京) | Fracture-cave carbonate reservoir physical model and displacement simulation experimental device and system |
| CN105332682A (en) * | 2015-10-21 | 2016-02-17 | 中国石油大学(北京) | Method of experimenting on impact of high-pressure fracture-cave bodies in carbonate rock reservoirs upon hydraulic fracture extension |
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| CN114973891A (en) * | 2021-02-22 | 2022-08-30 | 中国石油化工股份有限公司 | Three-dimensional visual fracture and cave model and manufacturing method thereof |
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