CN217028878U - Visual CO2Oil displacement experiment system - Google Patents
Visual CO2Oil displacement experiment system Download PDFInfo
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- CN217028878U CN217028878U CN202220903516.7U CN202220903516U CN217028878U CN 217028878 U CN217028878 U CN 217028878U CN 202220903516 U CN202220903516 U CN 202220903516U CN 217028878 U CN217028878 U CN 217028878U
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 98
- 238000002474 experimental method Methods 0.000 title claims abstract description 32
- 230000000007 visual effect Effects 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000004088 simulation Methods 0.000 claims abstract description 39
- 238000002347 injection Methods 0.000 claims abstract description 31
- 239000007924 injection Substances 0.000 claims abstract description 31
- 238000003860 storage Methods 0.000 claims abstract description 23
- 239000012780 transparent material Substances 0.000 claims abstract description 22
- 239000011521 glass Substances 0.000 claims abstract description 12
- 239000011148 porous material Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 9
- 239000000700 radioactive tracer Substances 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
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- 238000000034 method Methods 0.000 abstract description 22
- 239000012530 fluid Substances 0.000 abstract description 20
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- 238000011160 research Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 35
- 229910002092 carbon dioxide Inorganic materials 0.000 description 13
- 238000005286 illumination Methods 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
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- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
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- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
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Abstract
The utility model discloses a visual CO2Oil displacement experiment system, including oil storage device, oil pump, displacement reaction device, electric pump and the flowing back container that communicates the setting in proper order, displacement reaction device's front end is provided with water injection system and gas injection system, water injection system and gas injection system all with flowing back containerThe displacement reaction device is communicated and comprises a thermostat, a microscopic simulation model made of a first transparent material is arranged in the thermostat, a pore channel is etched on the microscopic simulation model, the microscopic simulation model is limited through glass plates at the upper end and the lower end, and the thermostat is a box body made of a second transparent material. Visual CO of the utility model2The oil displacement experiment system can visually observe the displacement experiment process, is convenient for switching different displacement fluids, and is beneficial to experimental research.
Description
Technical Field
The utility model relates to the technical field of oil field development experimental devices, in particular to a visual CO2Oil displacement experiment system.
Background
CO2The oil displacement technology is to remove CO2The technology of injecting the oil into an oil layer to improve the oil recovery rate of the oil field has the advantages of high efficiency, energy conservation, emission reduction and the like. The carbon dioxide flooding technology is applied to the development of low-permeability oil reservoirs at the earliest time, and CO can be realized while oil displacement and yield increase are realized2Burying and sealing, part of petroleum enterprises in China have also built demonstration projects and gradually develop popularization and application. CO 22Sequestration refers to the removal of CO by engineering means2Injecting into deep geological reservoir to realize CO2And (3) isolating the air for a long time. According to different geological storage bodies, the method can be divided into saline water layer storage and exhausted oil-gas reservoir storage.
The rock reservoir in the oil reservoir is a porous medium, and CO is researched2Process for displacing oil in porous media for CO2Increasing petroleum in oil displacement engineeringRecovery ratio and realization of larger CO2The amount of the sealing material has important significance.
To increase CO2The oil recovery rate is necessary to research the microcosmic oil displacement mechanism and effect under the conditions of different displacement gases, different petroleum components and different temperatures and pressures by adopting a microcosmic simulation technology. At present, when oil displacement simulation experiments are performed at home and abroad, a geological reservoir is mainly simulated by a sandstone model, the sandstone model is made of natural rocks, the reality is high, but the fluid flow process cannot be observed through the surface of the rocks in the experiment process, and the observation of an oil-gas interface and the displacement process are not facilitated.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a visual CO2The oil displacement experiment system can visually observe the displacement experiment process, is convenient for switching different displacement fluids, and is beneficial to experimental research.
In order to achieve the purpose, the utility model provides the following technical scheme:
visual CO2Oil displacement experiment system, including oil storage device, oil pump, displacement reaction unit, electric pump and the flowing back container that communicates the setting in proper order, displacement reaction unit's front end is provided with water injection system and gas injection system, water injection system and gas injection system all with displacement reaction unit intercommunication, displacement reaction unit includes the thermostated container, be provided with the microcosmic simulation model of first transparent material in the thermostated container, the aperture passageway is walked through to the sculpture on the microcosmic simulation model, microcosmic simulation model is spacing through the glass board of upper end and lower extreme, the thermostated container is the box of the preparation of second transparent material.
Optionally, one side of the displacement reaction device is provided with an illuminating device, and the other side of the displacement reaction device is provided with an observing device.
Optionally, the gas injection system comprises a high-pressure gas cylinder and a metering pump which are sequentially communicated, the gas outlet end of the metering pump is communicated with the displacement reaction device, and the high-pressure gas cylinder is used for containing tracer gas to be detected.
Optionally, the tracer gas to be detected is CO2。
Optionally, the water injection system comprises a water storage device for containing displacement water.
Optionally, the displacement water is water containing a fluorescent agent.
Optionally, the illumination device and the observation device are both electrically connected to a computer.
Optionally, the illumination device is a floodlight and the observation device is a high-speed camera or a microscope.
Optionally, the first transparent material and the second transparent material are glass or transparent polymer.
Optionally, the microscopic simulation model etches the pore channel based on a real rock sample, and the pore channel is etched on the surface of the microscopic simulation model.
According to the technical scheme, the visual CO provided by the utility model2Oil displacement experiment system, displacement reaction unit include the thermostated container, are provided with the microcosmic simulation model of first transparent material in the thermostated container, and the clearance passageway is gone up the sculpture in the microcosmic simulation model, and it is spacing that the microcosmic simulation model passes through the glass board of upper end and lower extreme, and the box of thermostated container is the transparent material of second simultaneously. Adopt the microcosmic simulation model of first transparent material preparation to and the thermostated container of second transparent material, thereby make whole displacement reaction unit have good light transmissivity, can observe oil gas cross-section and complete displacement experimentation directly perceivedly. The microcosmic simulation model imitates the pore structure on the surface of the natural rock core to etch a pore channel, and the whole process of gas or liquid displacement of reservoir oil can be observed in the experimental process. The water injection system and the gas injection system are both communicated with the displacement reaction device, so that different displacement fluids can be switched conveniently, and the experiment is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a visual CO provided by an embodiment of the present invention2A structural schematic diagram of the oil displacement experiment system;
fig. 2 is a schematic structural diagram of a displacement reaction apparatus provided in an embodiment of the present invention.
Wherein:
1. the device comprises an oil storage device, 2, an oil inlet valve, 3, an oil pump, 4, a displacement reaction device, 401, a thermostat, 402, a microscopic simulation model, 403, a glass plate, 5, a second valve, 6, an electric pump, 7, a liquid discharge container, 8, a high-pressure gas cylinder, 9, an air inlet valve, 10, a metering pump, 11, a first valve, 12, a water injection valve, 13, a water storage device, 14, an observation device, 15, a computer, 16 and a lighting device.
Detailed Description
The utility model discloses a visual CO2The oil displacement experiment system can visually observe the displacement experiment process, is convenient for switching different displacement fluids, and is beneficial to experimental research.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to FIGS. 1 and 2, the visual CO of the present invention2Oil displacement experimental system including oil storage device 1, oil pump 3, displacement reaction unit 4, electric pump 6 and the flowing back container 7 that communicate the setting in proper order, displacement reaction unit 4's front end is provided with water injection system and gas injection system, water injection system and gas injection system all communicate with displacement reaction unit 4. The displacement reaction device 4 comprises a thermostat 401, a microscopic simulation model 402 made of a first transparent material is arranged in the thermostat 401, a pore channel is etched on the microscopic simulation model 402, and the microscopic simulation model 402 is limited by glass plates 403 at the upper end and the lower end. The oven 401 is a box made of a second transparent material.
Wherein, the liquid inlet and the liquid outlet on the incubator 401 are both arranged on the side surface of the microscopic simulation model 402, and are prevented from being arranged at the upper end and the lower end, so that the glass plate 403 is favorable for plugging and fixing the microscopic simulation model 402. The surface of the glass plate 403 adjacent to the microscopic phantom 402 is disposed to correspond to the upper end surface or the lower end surface of the microscopic phantom 402, and the corresponding disposition here means the same size and shape. The cabinet of oven 401 is a transparent cabinet. The thermostat 401 is used for setting constant temperature, and the microscopic simulation model 402 is arranged in the thermostat 401 to provide a constant temperature environment required by an experiment and used for simulating the temperature of a gas storage stratum. The micro simulation model 402 corresponds to a simplified earth model. The thermostatic control structure and the thermostatic control method of the oven 401 are prior art and will not be described here. The electric pump 6 is used to provide displacement power to the fluid within the displacement reaction device 4. The liquid discharge container 7 is used for containing the fluid discharged by the displacement reaction device 4, and a separation device can be arranged at the rear end of the liquid discharge container 7 in order to facilitate the separation of gas-liquid mixed fluid.
Visual CO of the utility model2Oil displacement experiment system, displacement reaction unit 4 include thermostated container 401, are provided with the microcosmic simulation model 402 of first transparent material in the thermostated container 401, and the aperture passageway is gone up the sculpture in the microcosmic simulation model 402, and microcosmic simulation model 402 is spacing through glass board 403 of upper end and lower extreme, and the box of thermostated container is the second transparent material simultaneously. And adopt the microcosmic simulation model 402 of first transparent material preparation to and the thermostated container 401 of second transparent material to make whole displacement reaction unit 4 have good light transmissivity, can observe oil gas cross section and complete displacement experimental process directly perceivedly. The microscopic simulation model 402 can etch pore channels by imitating the pore structure on the surface of the natural core, and the whole process of gas or liquid flooding can be observed in the experimental process. The water injection system and the gas injection system are both communicated with the displacement reaction device 4, so that different displacement fluids can be switched conveniently, and the experiment is facilitated.
For the sake of clear observation, the displacement reaction device 4 is provided with an illumination device 16 on one side and an observation device 14 on the other side. The observation device 14 is used for observing the seepage phenomenon of oil gas or oil water in the micro simulation model 402.
Specifically, the gas injection system is including the high-pressure gas cylinder 8 and the measuring pump 10 that communicate the setting in proper order, and measuring pump 10's the end of giving vent to anger communicates with displacement reaction unit 4, and high-pressure gas cylinder 8 is used for the splendid attire tracer gas that awaits measuring. The metering pump 10 is a kind of fluid delivery machine that can maintain a constant flow rate regardless of the discharge pressure. The functions of conveying, metering and adjusting can be simultaneously completed by using the metering device 10, so that the production process flow is simplified. Wherein the tracer gas to be detected is CO2. An air inlet valve 9 is arranged on a communication pipeline between the high-pressure air bottle 8 and the metering pump 10, and the air inlet valve 9 is used for controlling whether the high-pressure air bottle 8 supplies air or not. The outlet end of the metering pump 10 is provided with a first valve 11, and the opening and closing of the first valve 11 can control whether fluid passes through the corresponding pipeline or not. When the fluid flowing to the displacement reaction device 4 is not gas in the high-pressure gas cylinder 8, the first valve 11 is closed, and other fluid flowing to the displacement reaction device 4 is prevented from flowing back into the metering pump 10.
Wherein, water injection system includes water storage device 13, and water storage device 13 is used for splendid attire displacement water. Further, the displacement water is water containing a fluorescent agent, so that observation is facilitated in the displacement water displacement process. In order to control whether the displacement water in the water storage device 13 flows out or not, the outlet end of the water storage device 13 is provided with a water injection valve 12, the opening and closing of the water injection valve 12 can control whether fluid passes through the corresponding pipeline or not, and meanwhile, when the fluid flowing to the displacement reaction device 4 is not the fluid in the water storage device 13, the water injection valve 12 is closed, so that other fluid flowing to the displacement reaction device 4 is prevented from flowing back into the water storage device 13.
In one embodiment, the device further comprises a computer 15, the illumination device 16 and the observation device 14 are electrically connected with the computer 15, the computer 15 controls the opening and closing of the illumination device 16, and the computer 15 is used for storing images at the observation device 14.
Specifically, the illumination device 16 is a wide-range lamp, and the observation device 14 is a high-speed camera or a microscope. The computer 15 is connected with the high-speed camera or the microscope and is used for storing a high-definition electronic image observed by the high-speed camera or the microscope. The computer 15 is equipped with specialized experimental software for controlling the experiment and receiving data such as flow, pressure and image data returned by the experimental measurement device. The high-speed camera or the microscope is used for data acquisition, data analysis software is arranged in the computer 15, and the experimental result is analyzed through image processing software, so that the fluid flow image acquisition function in the microscopic simulation model 402 can be realized. The seepage and displacement processes of the fluid in the porous medium can be visually reflected through the video of the high-speed camera or the microscope.
In an embodiment, the first transparent material and the second transparent material are glass or transparent polymer, and the transparent polymer may be PP or PVC.
In order to control the oil supply of the oil storage device 1, an oil inlet valve 2 is arranged on a communication pipeline between the oil storage device 1 and the oil pump 3. A second valve 5 is arranged on a communication pipeline between the displacement reaction device 4 and the electric pump 6.
Visual CO of the utility model2The working process of the oil displacement experiment system is as follows: the oil inlet valve 2 and the oil pump 3 are opened, the oil storage device 1 injects an oil sample into the microscopic simulation model 402, then the oil valve 2 and the oil pump 3 are closed, the air inlet valve 9 and the first valve 11 are opened, and gas (CO) in the high-pressure gas cylinder 8 is filled2) And injecting the oil into the microscopic simulation model 402 to observe the gas flooding process. The experimental process takes pictures of fluid changes in the microscopic simulation model 402 with a high-speed camera and processes the experimental results through image analysis.
If gas is not injected for oil displacement, the air inlet valve 9 and the first valve 11 are closed, the water injection valve 12 is opened, and water containing fluorescent agent in the water storage device 13 is injected into the microscopic simulation model 402, so that the water-oil displacement process can be simulated, the water-oil displacement interface change can be observed, and the water-oil displacement mechanism can be researched.
Visual CO of the utility model2The oil displacement experiment system can be used for researching an oil-gas displacement mechanism and an oil-water displacement mechanism, and can visually observe an oil-gas interface or an oil-water interface and a displacement process in an experiment.
In the description of the present solution, it is to be understood that the terms "upper", "lower", "vertical", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present solution.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. Visual CO2The oil displacement experiment system is characterized by comprising an oil storage device, an oil pump, a displacement reaction device, an electric pump and a liquid drainage container which are sequentially communicated, wherein a water injection system and a gas injection system are arranged at the front end of the displacement reaction device, the water injection system and the gas injection system are both communicated with the displacement reaction device, the displacement reaction device comprises a constant temperature box, a microscopic simulation model made of a first transparent material is arranged in the constant temperature box, a pore channel is etched on the microscopic simulation model,the microscopic simulation model is limited by glass plates at the upper end and the lower end, and the constant temperature box is made of a second transparent material.
2. The visual CO of claim 12The oil displacement experiment system is characterized in that one side of the displacement reaction device is provided with an illuminating device, and the other side of the displacement reaction device is provided with an observing device.
3. The visual CO of claim 12Oil displacement experiment system, its characterized in that, the gas injection system is including the high-pressure gas cylinder and the measuring pump that communicate the setting in proper order, the end of giving vent to anger of measuring pump with displacement reaction device intercommunication, high-pressure gas cylinder is used for the splendid attire tracer gas that awaits measuring.
4. The visual CO of claim 32The oil displacement experiment system is characterized in that the tracer gas to be detected is CO2。
5. The visual CO of claim 12The oil displacement experiment system is characterized in that the water injection system comprises a water storage device, and the water storage device is used for containing displacement water.
6. The visual CO of claim 52The oil displacement experiment system is characterized in that the displacement water is water containing a fluorescent agent.
7. The visual CO of claim 22The oil displacement experiment system is characterized in that the illuminating device and the observing device are electrically connected with the computer.
8. Visual CO according to claim 2 or 72The oil displacement experiment system is characterized in that the illuminating device is a wide-range illuminator, and the observation device is a high-speed camera or a microscope.
9. Root of herbaceous plantsVisual CO according to claim 12The oil displacement experiment system is characterized in that the first transparent material and the second transparent material are glass or transparent polymers.
10. The visual CO of claim 12The oil displacement experiment system is characterized in that the microscopic simulation model etches the pore channel based on a real rock sample, and the pore channel is etched on the surface of the microscopic simulation model.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220903516.7U CN217028878U (en) | 2022-04-19 | 2022-04-19 | Visual CO2Oil displacement experiment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220903516.7U CN217028878U (en) | 2022-04-19 | 2022-04-19 | Visual CO2Oil displacement experiment system |
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| Publication Number | Publication Date |
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| CN217028878U true CN217028878U (en) | 2022-07-22 |
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| CN202220903516.7U Active CN217028878U (en) | 2022-04-19 | 2022-04-19 | Visual CO2Oil displacement experiment system |
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