Multi-element thermal fluid huff and puff simulation visualization device
By designing a multi-component thermal fluid throughput simulation visualization device, the problem of being unable to observe the reaction between heavy oil and multi-component thermal fluids in the existing technology was solved, clear observation and recording of changes in heavy oil properties were achieved, and the accuracy and efficiency of studying the action mechanism of multi-component thermal fluids were improved.
Patent Information
- Application Number
- CN202410321161.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-09-23
AI Technical Summary
The lack of simulation equipment for multi-component thermal fluid throughput technology makes it impossible to clearly observe the changes in heavy oil properties during the reaction between heavy oil and multi-component thermal fluids, affecting the difficulty of studying the action mechanism of multi-component thermal fluids.
A multi-element thermal fluid throughput simulation visualization device was designed, including a reactor body, a fluid supply component, and an image acquisition component. A transparent visualization window and a camera component were used to observe the reaction process, and quantitative input was achieved through a fluid supply unit and a stirring component to promote the reaction, combined with image storage and analysis.
It achieves clear observation and recording of the reaction process between heavy oil and multi-component thermal fluids, can analyze the changes of heavy oil at different stages, provides a visual research method for multi-component thermal fluid throughput technology, and improves the accuracy and efficiency of research.
Smart Images
Figure CN120684164A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of oil reservoir development, and in particular relates to a visualization device for simulating the throughput of multi-element thermal fluids in a heavy oil reservoir. Background Art
[0002] Multicomponent thermal fluid huff-and-puff technology is an important method for increasing heavy oil production during the development of heavy oil reservoirs. It can improve well efficiency, reduce heavy oil extraction costs, and increase single-well production. Multicomponent thermal fluids are primarily composed of a mixture of fuel and air, which is burned to vaporize water. This combustion generates high-temperature, high-pressure flue gas, forming a high-pressure multicomponent thermal fluid mixture composed of carbon dioxide and water vapor. This mixture is then injected into the formation through a heat injection pipeline. Its primary mechanism for increasing production is to utilize the heat carried by the multicomponent thermal fluid to heat the heavy oil in the formation. The water vapor in the multicomponent thermal fluid primarily uses its own heat to reduce the viscosity of the heavy oil, while the carbon dioxide dissolves into the oil, dissolving and reducing the viscosity. Nitrogen primarily enhances energy and pressure. However, the reaction between the multicomponent thermal fluid and the heavy oil occurs below the formation, making it difficult to accurately observe the changes in the oil's properties during this reaction. Therefore, accurate observation of the reaction between the heavy oil and the multicomponent thermal fluid is crucial for studying the mechanism of action of multicomponent thermal fluids.
[0003] Many scholars at home and abroad have studied the mechanism of action of various oil production methods in heavy oil reservoirs. However, due to the complexity of multi-component thermal fluid throughput and the high viscosity of heavy oil, it is difficult to study the mechanism of action of multi-component thermal fluid throughput technology. Visualization experiments are one means of studying the mechanism of action, but there is currently a lack of simulation devices for multi-component thermal fluid throughput technology. Summary of the Invention
[0004] The purpose of the present invention is to provide a multi-element thermal fluid throughput simulation visualization device to solve the problems in the research process of the multi-element thermal fluid throughput technology proposed in the above background technology.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a multi-element thermal fluid throughput simulation and visualization device, comprising:
[0006] A reactor body, defining a closed reaction zone therein, the reactor body being configured to be heated to a set temperature, and having a visualization window made of a transparent material at the top of the reactor body;
[0007] A fluid supply assembly, comprising a plurality of fluid supply units for inputting a quantitative reaction fluid into the reaction zone;
[0008] The image acquisition component includes a camera component and a terminal component. The camera component is arranged above the visualization window and is configured to capture the reaction process. The terminal component receives and stores image data from the camera component.
[0009] Preferably, the reactor body comprises a main body and a cover, and the visualization window is embedded in the cover and sealed by rubber.
[0010] Preferably, the simulation device further comprises a heating sleeve, which is coated on the outer wall of the main body and is configured to heat the reactor body.
[0011] Preferably, the fluid supply unit includes:
[0012] a delivery pipe, one end of which passes through the top of the reactor body and extends into the reaction zone;
[0013] a container component, fluidically connected to the reactor body via the delivery pipe;
[0014] The pump body component is assembled on the delivery pipeline and serves as an input power source for the reaction fluid.
[0015] Preferably, the fluid supply assembly includes a nitrogen supply unit and a carbon dioxide supply unit, and the nitrogen supply unit and the carbon dioxide supply unit share a pump body component.
[0016] Preferably, the fluid supply assembly also includes a steam supply unit, which has a steam generator assembled on the delivery pipe, and the delivery pipe includes a first part and a second part respectively arranged at both ends of the steam generator. Pure water enters the steam generator from the first part and is converted into steam, and then flows into the reaction zone from the second part.
[0017] Preferably, the simulation device further comprises a baffle member, which is made of a transparent material and vertically divides the reaction zone into an upper zone and a lower zone, and the heavy oil and the fluid contact and react in the lower zone.
[0018] Preferably, the reactor body is further provided with a sampling port, and the sampling port is connected to an external viscometer via a connecting pipe.
[0019] Preferably, the simulation device stirring assembly includes a stirring shaft, whose axis coincides with the axis of the reactor body, one end of the stirring shaft passes through the top of the reactor body and extends into the reaction zone, and is equipped with a stirring blade, and the stirring shaft is configured to rotate under the action of an external drive member.
[0020] Preferably, the heating sleeve is made of high-temperature glass fiber cloth material.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] The present application provides a simulation device consisting of a reactor body, a fluid supply component, and an image acquisition component. Through the closed reaction environment of the reactor body component and the visualization window on the top, in conjunction with the image acquisition component, the changes in color and state during the reaction between heavy oil and a multi-component thermal fluid can be clearly observed and stored, and the changes in the multi-component thermal fluid and heavy oil at different throughput stages can be observed. At the same time, multiple independent fluid supply units realize the quantitative input of different reaction fluids, and the changes in the heavy oil during the reaction between the multi-component thermal fluid and heavy oil at different ratios can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structure of the simulation device;
[0024] Figure 2 is a schematic diagram of a fluid supply assembly;
[0025] Figure 3 Schematic diagram of the internal structure of the reactor.
[0026] In the picture:
[0027] 100, reactor body; 100a, main body; 100b, cover; 101, reaction zone; 102, injection port; 103, sampling port; 104, connecting pipe; 105, heating jacket; 106, viscometer; 107, visualization window;
[0028] 200, fluid supply assembly; 201, fluid supply unit; 202, delivery pipeline; 202a, first section; 202b, second section; 202c, first portion; 202d, second portion; 203, pump body; 204, container; 205, steam generator; 206, nitrogen supply unit; 207, carbon dioxide supply unit; 208, steam supply unit;
[0029] 300, image acquisition component; 301, camera component; 302, terminal component;
[0030] 400, baffle component; 401, lower section; 402, upper section
[0031] 500, stirring assembly; 501, stirring shaft; 502, stirring blade. DETAILED DESCRIPTION
[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0033] A multi-element thermal fluid throughput simulation visualization device (hereinafter referred to as the simulation device), referring to Figure 1 The simulation device includes a reactor body 100, which defines a closed reaction zone 101. The reactor body 100 is configured to be heated by an external heating unit so that the temperature of the material in the reaction zone 101 reaches the reaction temperature (such as the temperature of the heavy oil reservoir). In some embodiments, the reactor body 100 is made of stainless steel and has a main body 100a and a cover 100b, wherein the cover 100b is assembled at the top of the main body 100a and is used to heat the reaction zone 101. The reactor body 100 is sealed to construct a sealed reaction environment. Correspondingly, the heating unit is constituted by a heating sleeve 105 covering the periphery of the main body 100a of the reactor body 100. The heating sleeve 105 serves as a heating element of the reactor body 100 on the one hand, and as a heat-insulating element of the reactor body 100 on the other hand, that is, it can reduce the heat loss rate of the reactor body 100 and ensure the temperature stability of the reactor body 100. Exemplarily, the heating sleeve 105 is made of high-temperature resistant glass fiber cloth material to meet the high temperature requirements of the test.
[0034] Reference Figure 1 The simulation device further includes an image acquisition component 300. In some embodiments, the image acquisition component 300 includes a camera component 301 and a terminal component 302. The camera component 301 is disposed above the reactor body 100 and is used to take photos and videos during the reaction between the heavy oil and the multi-component thermal fluid. The terminal component 302 is electrically connected to the camera component 301 and can receive image data from the camera component 301, process it (such as optimizing clarity), and store it. Exemplarily, the terminal component 302 includes a processing unit and a storage unit for processing and storing the image from the camera component 301. Furthermore, the top of the reactor body 100 has a visual window. The visual window 107 of the reactor body 100 is partially made of high-temperature resistant glass and is embedded in the top of the reactor body 100, that is, in the cover 100b of the reactor body 100. The visual window 107 and the cover 100b are sealed with rubber to maintain the sealing of the reactor body 100.
[0035] Reference Figure 1The simulation device further includes a fluid supply assembly 200, which includes a plurality of fluid supply units 201. A single fluid is quantitatively delivered to the reaction zone 101 through the fluid supply unit 201 to react with the heavy oil. In some embodiments, the fluid supply unit 201 includes a delivery pipe 202, a container component 204, and a pump body component 203. One end of the delivery pipe 202 passes through the cover 100b of the reactor body 100 and extends into the reaction zone 101. That is, the cover 100b of the reactor body 100 is provided with an injection port 102 for the delivery pipe 202 to pass through. The injection port 102 and the delivery pipe 202 are compatible in specifications, and the contact position between the injection port 102 and the delivery pipe 202 is sealed to close the reaction zone 101. At the same time, the delivery pipe 202 is provided with auxiliary components such as valves to control the operation state of the pipe (such as opening and closing). Return to Figure 1 Continuing to explain the fluid supply unit 201, the above-mentioned container component 204 and pump body component 203 are both assembled on the delivery pipe 202. The fluid stored in the container component 204 flows into the reaction zone 101 from the delivery pipe 202 under the action of the pump body component 203 for reaction. Exemplarily, the above-mentioned pump body component 203 is a high-pressure metering pump, which can control the input amount of the fluid to achieve quantitative supply of the fluid.
[0036] The supply of steam, nitrogen and carbon dioxide is now explained as an example. Figure 2 In this example, the fluid supply assembly 200 is composed of a nitrogen supply unit 206, a carbon dioxide supply unit 207, and a steam supply unit 208. The nitrogen supply unit 206 and the carbon dioxide supply unit 207 share the same pump body component 203, and the container component 204 in the nitrogen supply unit 206 and the carbon dioxide supply unit 207 is located between the pump body component 203 and the injection port 102. Correspondingly, the delivery pipeline 202 of the nitrogen supply unit 206 and the carbon dioxide supply unit 207 is divided into a first section 202a and a second section 202b by the container component 204. Correspondingly, the delivery pipeline 202 of the nitrogen supply unit 206 and the carbon dioxide supply unit 207 is provided with valves at the first section 202a and the second section 202b to achieve independent control of the on-off of the first section 202a and the second section 202b of the delivery pipeline 202. Return to FIG. Figure 2The container part 204 of the above-mentioned steam supply unit 208 is arranged at one end of the conveying pipe 202, and the raw material stored in the container part 204 is distilled water. At this time, a steam generator 205 is also provided on the conveying pipe 202 of the steam supply unit 208, and the pump body part 203 in the steam supply unit 208 is located between the steam generator 205 and the container part 204. At the same time, the conveying pipe 202 in the steam supply unit 208 is divided into a first part 202c and a second part 202d by the steam generating component. When in use, the distilled water flows from the first part 202c into the steam generator 205 under the action of the pump body part 203, and after being converted into steam under the action of the steam generator 205, it flows into the reaction zone 101 from the second part 202d to realize steam supply.
[0037] In some embodiments, reference Figure 3 The simulation device further includes a stirring assembly 500, which includes a stirring shaft 501. The axis of the stirring shaft 501 coincides with the axis of the reactor body 100, and one end of the stirring shaft 501 passes through the cover 100b of the reactor body 100 and extends into the reaction zone 101 and is equipped with a stirring blade 502. At the same time, the stirring shaft 501 can rotate under the drive of an external force, thereby driving the stirring liquid to rotate, so that the heavy oil and the fluid can react fully.
[0038] In some embodiments, the simulation device further includes a baffle member 400, which is made of a transparent material and is disposed in the reaction zone 101. The baffle member 400 vertically divides the reaction zone 101 into an upper zone 402 and a lower zone 401, wherein the lower zone 401 is a contact zone between the heavy oil and the fluid, and the heavy oil and the fluid are mixed and reacted in the lower zone 401. Correspondingly, one end of the delivery pipe 202 in the fluid supply unit 201 passes through the reaction zone 101 in sequence. The cover 100b of the reactor body 100 and the baffle member 400 extend backward into the lower section 401 to achieve fluid supply in the lower section 401. At the same time, the upper section 402 serves as a partition between the cover 100b of the reactor body 100 and the lower section 401. That is, the baffle member 400 forms a partition between the cover 100b of the reactor body 100 and the heavy oil reaction position, thereby protecting the visualization window 107 and preventing it from being contaminated, making it easier for staff to observe.
[0039] In some embodiments, reference Figure 1 and 3The reactor body 100 is further provided with a sampling port 103, which is connected to an external viscometer 106 (such as a capillary viscometer 106) via a connecting pipe 104. The sample flows from the sampling port 103 through the connecting pipe 104 into the viscometer 106 to measure the viscosity of the sample. For example, the sampling port 103 is provided at the bottom of the reactor body 100, and a valve is provided on the connecting pipe 104 between the sampling port 103 and the viscometer 106. The connection and disconnection of the connecting pipe are controlled by opening and closing the valve, thereby controlling the sampling operation.
[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A multi-element thermal fluid throughput simulation and visualization device, characterized by: include: A reactor body, defining a closed reaction zone therein, the reactor body being configured to be heated to a set temperature, and having a visualization window made of a transparent material at the top of the reactor body; A fluid supply assembly, comprising a plurality of fluid supply units for inputting a quantitative reaction fluid into the reaction zone; The image acquisition component includes a camera component and a terminal component. The camera component is arranged above the visualization window and is configured to capture the reaction process. The terminal component receives and stores image data from the camera component.
2. The multi-element thermal fluid throughput simulation and visualization device according to claim 1, characterized in that: The reactor body comprises a main body and a cover body, and the visualization window is embedded in the cover body and sealed by rubber.
3. The multi-element thermal fluid throughput simulation and visualization device according to claim 2, characterized in that: The simulation device further includes a heating jacket, which is coated on the outer wall of the main body and configured to heat the reactor body.
4. The multi-element thermal fluid throughput simulation and visualization device according to claim 1, characterized in that: The fluid supply unit comprises: a delivery pipe, one end of which passes through the top of the reactor body and extends into the reaction zone; a container component, fluidically connected to the reactor body via the delivery pipe; The pump body component is assembled on the delivery pipeline and serves as an input power source for the reaction fluid.
5. The multi-element thermal fluid throughput simulation and visualization device according to claim 4, characterized in that: The fluid supply assembly includes a nitrogen supply unit and a carbon dioxide supply unit, and the nitrogen supply unit and the carbon dioxide supply unit share a pump body component.
6. The multi-element thermal fluid throughput simulation and visualization device according to claim 4, characterized in that: The fluid supply assembly also includes a steam supply unit, which has a steam generator assembled on the delivery pipeline, and the delivery pipeline includes a first part and a second part respectively arranged at both ends of the steam generator. Pure water enters the steam generator from the first part and is converted into steam, and then flows into the reaction zone from the second part.
7. The multi-element thermal fluid throughput simulation and visualization device according to claim 1, characterized in that: The simulation device further includes a baffle member made of a transparent material and vertically dividing the reaction zone into an upper zone and a lower zone. The heavy oil and the fluid contact and react in the lower zone.
8. The multi-element thermal fluid throughput simulation and visualization device according to claim 1, characterized in that: The reactor body is further provided with a sampling port, which is connected to an external viscometer via a connecting pipe.
9. The multi-element thermal fluid throughput simulation and visualization device according to claim 1, characterized in that: The simulation device stirring assembly includes a stirring shaft, whose axis coincides with the axis of the reactor body, one end of the stirring shaft passes through the top of the reactor body and extends into the reaction zone, and is equipped with a stirring blade, and the stirring shaft is configured to rotate under the action of an external drive member.
10. The multi-element thermal fluid throughput simulation and visualization device according to claim 1, characterized in that: The heating sleeve is made of high-temperature glass fiber cloth material.