CN220120650U - A visual CO2 imbibition system - Google Patents
A visual CO2 imbibition system Download PDFInfo
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- CN220120650U CN220120650U CN202321107023.3U CN202321107023U CN220120650U CN 220120650 U CN220120650 U CN 220120650U CN 202321107023 U CN202321107023 U CN 202321107023U CN 220120650 U CN220120650 U CN 220120650U
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Abstract
The utility model discloses a visual CO 2 The seepage system comprises a gas supply assembly, a visual kettle, a back pressure control device, a temperature control box and a vacuumizing device, wherein the gas supply assembly comprises a gas cylinder, a first flowmeter and a piston container which are sequentially arranged at the upstream and downstream; a glass analyzer with a metering scale is arranged in the visual kettle, and a rock sample is fixedly arranged at the lower part of the glass analyzer; the back pressure control device comprises a manual pump and a plurality of back pressure valves; the temperature control box is arranged at the periphery of the visual kettle. The visual kettle and the glass analyzer can intuitively and conveniently read the imbibition amount and observe the imbibition process; a flowmeter(s),The piston container and the first thermometer and the first pressure gauge are matched to accurately measure the quantity of gas entering and exiting the visual kettle; the back pressure control device can stably and accurately control the pressure of the visible kettle; the temperature control box enables temperature control to be accurate, and thermal inertia is small; the safety valve can better control the imbibition process, reduces the potential safety hazard, and brings great convenience for research.
Description
Technical Field
The present utility model relates to CO 2 The technical fields of sealing and oil exploitation are utilized, in particular to a visual CO 2 A imbibition system.
Background
The imbibition system can be applied to CO 2 The oil-driving seal field and the development of petroleum, natural gas and coal. The existing imbibition system can not intuitively observe and record imbibition process; the function is simple, and the seepage and absorption amount, the oil saturation and the like are inconvenient to measure; inaccurate temperature and pressure control causes inaccurate measurement of test results and brings larger errors to research results; the general system only considers the imbibition process of one gas, and does not consider imbibition effect of multiple gases or other fluids; some devices have low operation control speed, low efficiency, large error, easy damage and unsafe. The operation is inconvenient, the imbibition process can not be controlled better, even potential safety hazards exist, and great inconvenience is brought to the development of imbibition process research.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems in the related art to some extent.
To this end, embodiments of the present utility model propose a visual CO 2 A imbibition system.
The utility model provides a visual CO 2 A imbibition system comprising:
the gas supply assembly comprises a gas cylinder, a first flowmeter and a piston container which are sequentially arranged at the upstream and downstream, the first flowmeter is arranged at the outlet end of the gas cylinder, and the piston container is arranged on a branch of an outlet pipeline of the first flowmeter;
the visual kettle is arranged at the downstream of the gas supply assembly, a glass analyzer with metering scales is arranged in the visual kettle, and a rock sample is fixedly arranged at the lower part of the glass analyzer;
the back pressure control device comprises a manual pump and a plurality of back pressure valves, and the back pressure valves are arranged at the inlet end and the outlet end of the visual kettle;
the temperature control box is arranged at the periphery of the visual kettle;
and the vacuumizing device is arranged on a branch close to the inlet pipeline of the visual kettle.
In some embodiments, a first check valve is disposed on the line between the first flow meter and the piston container immediately adjacent the first flow meter.
In some embodiments, the lower portion of the piston container is connected to an infusion pump, the input end of which is connected to a water tank.
In some embodiments, the glass analyzer is positioned with its opening facing downward and the rock sample is in sealing and fixed connection with the glass analyzer.
In some embodiments, the visual kettle is made of transparent materials, and a light source and a camera are arranged on the side face of the visual kettle.
In some embodiments, a safety valve is arranged at the top of the visible kettle.
In some embodiments, the back pressure valve comprises a first back pressure valve and a second back pressure valve, the first back pressure valve is arranged at the inlet end of the visual kettle, the second back pressure valve is arranged at the outlet end of the visual kettle, and a second flowmeter is arranged on the outlet pipeline of the second back pressure valve.
In some embodiments, the output end of the manual pump is connected with a buffer tank, and the outlet end of the buffer tank is respectively connected with the first back pressure valve and the second back pressure valve through pipelines.
In some embodiments, a second check valve is disposed on the line between the first back pressure valve and the piston container immediately adjacent the first back pressure valve.
In some embodiments, the piston container is provided with a pressure gauge and a temperature gauge adjacent to the upper outlet end and the top of the visual kettle.
Compared with the prior art, the utility model has the beneficial effects that:
the visual kettle and the glass analyzer can intuitively and conveniently read the imbibition amount and observe the imbibition process; the flow meter, the piston container, the first thermometer and the first pressure meter can be matched to accurately measure the quantity of gas entering and exiting the visual kettle; the back pressure control device can stably and accurately control the pressure of the visible kettle; the temperature control box enables temperature control to be accurate, and thermal inertia is small; the safety valve can better control the imbibition process, reduces potential safety hazard, and brings great convenience for the development of experimental study.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a view of the CO of the present utility model 2 A schematic diagram of a imbibition system;
reference numerals illustrate:
gas cylinder 1, first flowmeter 2, first check valve 3, piston container 4, first manometer 5, first thermometer 6, injection pump 7, water tank 8, first back pressure valve 9, second back pressure valve 10, buffer tank 11, manual pump 12, first valve 13, second valve 14, visual still 15, rock sample 16, sealing gum cover 17, glass analyzer 18, light source 19, camera 20, second manometer 21, second thermometer 22, safety valve 23, second flowmeter 24, temperature control box 25, evacuating device 26, second check valve 27.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
The visualized CO proposed according to an embodiment of the present utility model is described below with reference to the accompanying drawings 2 A imbibition system.
As shown in FIG. 1, the visualized CO of the present utility model 2 The imbibition system comprises a gas supply assembly, a visual kettle 15, a back pressure control device, a temperature control box 25 and a vacuumizing device 26.
The gas supply assembly comprises a gas cylinder 1, a first flowmeter 2 and a piston container 4, wherein the gas cylinder 1, the first flowmeter 2 and the piston container 4 are sequentially arranged at the upstream and downstream, the first flowmeter 2 is arranged at the outlet end of the gas cylinder 1, and the piston container 4 is arranged on a branch of an outlet pipeline of the first flowmeter 2. A first one-way valve 3 is arranged on a pipeline between the first flowmeter 2 and the piston container 4, the lower part of the piston container 4 is connected with an injection pump 7, and the input end of the injection pump 7 is connected with a water tank 8.
Specifically, the gas cylinder 1 of the gas supply assembly is used for storing gas, and a first flowmeter 2 is arranged on an outlet pipeline of the gas cylinder 1, and the first flowmeter 2 is used for measuring the quantity of the gas flowing out of the gas cylinder 1. The piston container 4 is arranged on a branch of an outlet pipeline of the first flowmeter 2, gas flowing out of the gas bottle 1 enters the piston container 4, the lower part of the piston container 4 is connected with the injection pump 7, the input end of the injection pump 7 is connected with the water tank 8, and when the gas needs to be supplied, the piston container 4 is extruded by the injection pump 7, so that the gas in the piston container 4 flows out of an upper outlet pipeline of the piston container 4 and enters the visual kettle 15. In order to avoid metering errors and damages of the first flowmeter 2 due to the high pressure of the gas, a first one-way valve 3 is provided in the line between the first flowmeter 2 and the piston container 4. A first pressure gauge 5 and a first temperature gauge 6 are provided at the upper outlet end of the piston container 4, the first pressure gauge 5 and the first temperature gauge 6 being used to test the pressure and temperature of the gas flowing out of the piston container 4. The piston container 4 is provided with a metering scale, the total amount of the gas flowing out of the gas cylinder 1 is metered by the first flowmeter 2, the amount of the gas left in the piston container 4 after the gas supply is completed can be converted according to a Kelarong equation according to the scale reading of the piston container 4 and the test data of the first pressure gauge 5 and the first temperature gauge 6, and the amount of the gas left in the piston container 4 is subtracted by the total amount of the gas metered by the first flowmeter 2, namely the amount of the gas introduced into the visual kettle 15.
The visual kettle 15 is arranged at the downstream position of the gas supply assembly, the visual kettle 15 is internally provided with a glass analyzer 18 with metering scales, and the rock sample 16 is fixedly arranged at the lower part of the glass analyzer 18. The glass analyzer 18 is vertically arranged with the opening downward, and the rock sample 16 is fixedly connected with the glass analyzer 18 in a sealing way. The visual kettle 15 is made of transparent materials, and a light source 19 and a camera 20 are arranged on the side face of the visual kettle 15.
Specifically, a visual kettle 15 is arranged at the downstream position of the gas supply assembly, a glass analyzer 18 is arranged in the visual kettle 15, scales are arranged on the glass analyzer 18, and the seepage and absorption amount is obtained by reading the scales displayed on the glass analyzer 18. The rock sample 16 is fixedly arranged at the lower part of the glass analyzer 18, and it is understood that by fixing the rock sample 16 at the lower part of the glass analyzer 18, the seepage volume is increased from the lower part of the glass analyzer 18 to the upper part, so that measurement errors caused by that seepage oil or other substances are retained on the wall surface of the glass analyzer 18 are avoided. In some embodiments, the rock sample 16 is fixedly connected to the lower portion of the glass analyzer 18 by a sealing gum cover 17, such that the glass analyzer 18 and the rock sample 16 are in sealing contact. The visual kettle 15 is made of a high-pressure-resistant full transparent material, and the visual kettle 15 made of the transparent material can facilitate reading of the indication number of the glass analyzer 18. The side of the visual kettle 15 is provided with a light source 19 and a camera 20, preferably, the light source 19 and the camera 20 are arranged oppositely, and the light source 19 irradiates the visual kettle 15, so that the camera 20 can shoot and record the imbibition process conveniently.
In some embodiments, the visual kettle 15 is made of an opaque material, and when the visual kettle 15 is made of an opaque material, a plurality of transparent windows are arranged on the side surface of the visual kettle 15 to facilitate observation, and at this time, the light source 19 and the camera 20 are arranged at the positions of the transparent windows.
In some embodiments, a second pressure gauge 21 and a second temperature gauge 22 are arranged at the top of the visual kettle 15, and the second pressure gauge 21 and the second temperature gauge 22 are respectively used for testing the pressure and the temperature of the gas in the visual kettle 15 in real time.
In some embodiments, a safety valve 23 is provided at the top of the visual kettle 15. The safety valve 23 is arranged to allow the visual kettle 15 to automatically depressurize when the visual kettle 15 is overpressurized.
The temperature control box 25 is arranged at the periphery of the visual kettle 15, the temperature control box 25 is adjusted to the target temperature to simulate the stratum temperature, the temperature in the box is uniform, the temperature control precision is high, and the thermal inertia is small; in some embodiments, the temperature control box 25 utilizes heated air circulation, employing PID regulated temperature control techniques. The back pressure control device comprises a manual pump 12 and a plurality of back pressure valves arranged at the inlet end and the outlet end of the visual kettle 15. The back pressure valve comprises a first back pressure valve 9 and a second back pressure valve 10, wherein the first back pressure valve 9 is arranged at the inlet end of the visual kettle 15, the second back pressure valve 10 is arranged at the outlet end of the visual kettle 15, and a second flowmeter 24 is arranged on the outlet pipeline of the second back pressure valve 10. The output end of the manual pump 12 is connected with the buffer tank 11, and the outlet end of the buffer tank 11 is respectively connected with the first back pressure valve 9 and the second back pressure valve 10 through pipelines.
Specifically, the back pressure valve comprises a first back pressure valve 9 and a second back pressure valve 10, the first back pressure valve 9 and the second back pressure valve 10 are respectively arranged at an inlet end and an outlet end of the visual kettle 15, the minimum pressure capable of entering the visual kettle 15 is adjusted by adjusting the first back pressure valve 9, the minimum pressure capable of flowing out of the visual kettle 15 is adjusted by adjusting the second back pressure valve 10, namely, the pressure capable of entering and exiting the visual kettle 15 is adjusted by the first back pressure valve 9 and the second back pressure valve 10. A second flow meter 24 is provided on the outlet line of the second back pressure valve 10, the second flow meter 24 being used to test the amount of gas flowing out of the visual kettle 15. The pressure of the first back pressure valve 9 and the second back pressure valve 10 is controlled and regulated by a manual pump 12, the output end of the manual pump 12 is connected with a buffer tank 11, the outlet end of the buffer tank 11 is respectively connected with the first back pressure valve 9 and the second back pressure valve 10 through pipelines, a first valve 13 is arranged on a pipeline between the outlet end of the buffer tank 11 and the first back pressure valve 9, a second valve 14 is arranged on a pipeline between the buffer tank 11 and the second back pressure valve 10, when the pressure of the first back pressure valve 9 needs to be regulated, the first valve 13 is opened, the second valve 14 is closed, and the pressure of the first back pressure valve 9 is increased or reduced through the manual pump 12; when it is necessary to adjust the pressure of the second back pressure valve 10, the second valve 14 is opened, the first valve 13 is closed, and the pressure of the second back pressure valve 10 is increased or decreased by the manual pump 12.
In some embodiments, a second one-way valve 27 is provided in the line between the first back pressure valve 9 and the piston container 4, and the second one-way valve 27 is provided immediately adjacent to the first back pressure valve 9. The provision of the second one-way valve 27 avoids metering errors or equipment damage caused by the back flow of gas out through the upper outlet end of the piston container 4.
The evacuating device 26 is used for visualizing CO 2 And vacuumizing the imbibition system. In some embodiments, the evacuation device 26 is a vacuum pump, and the evacuation device 26 is positioned in a branch proximate to the inlet line of the visual kettle 15.
The visualized CO of the utility model 2 The working process of the imbibition system comprises the following steps:
(1) Checking the air tightness of the system;
(2) The rock sample 16 of saturated oil is fixed at the lower part of a glass analyzer 18 through a sealing rubber sleeve 17;
(3) Vacuumizing the system by using a vacuum pump;
(4) The pressure of the first back pressure valve 9 and the pressure of the second back pressure valve 10 are controlled and regulated by the manual pump 12, so that the lowest pressure entering and exiting the visible kettle 15 is regulated, and the temperature control box 25 is regulated to the target temperature;
(5) The gas in the gas cylinder 1 sequentially flows through the first flowmeter 2 and the first one-way valve 3 and then enters the piston container 4 for storage;
(6) CO in the piston container 4 is pumped by means of an injection pump 7 2 Injecting into a visual kettle 15;
(7) The light source 19 and the camera 20 are turned on, the imbibition process is observed and recorded, and after imbibition is finished, the imbibition amount is read through the scale of the glass analyzer 18;
(8) And (5) cleaning the equipment, and ending the imbibition process.
It should be noted that the gas and liquid involved in the imbibition process can be of other types, not limited to CO 2 And oil, gas category may be CH 4 、N 2 The gas or hydrocarbon gas, and the liquid may be oil, water, chemical reagent solution, or other mixed liquid. The system can be used for carrying out contrast research by changing conditions such as temperature, rock sample type, rock sample saturated sample type and the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms may be directed to different embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. Visual CO 2 A imbibition system characterized by comprising:
the gas supply assembly comprises a gas cylinder, a first flowmeter and a piston container which are sequentially arranged at the upstream and downstream, the first flowmeter is arranged at the outlet end of the gas cylinder, and the piston container is arranged on a branch of an outlet pipeline of the first flowmeter;
the visual kettle is arranged at the downstream of the gas supply assembly, a glass analyzer with metering scales is arranged in the visual kettle, and a rock sample is fixedly arranged at the lower part of the glass analyzer;
the back pressure control device comprises a manual pump and a plurality of back pressure valves, and the back pressure valves are arranged at the inlet end and the outlet end of the visual kettle;
the temperature control box is arranged at the periphery of the visual kettle;
and the vacuumizing device is arranged on a branch close to the inlet pipeline of the visual kettle.
2. The imbibition system of claim 1, wherein a first one-way valve is disposed on a line between the first flow meter and the piston reservoir proximate the first flow meter.
3. The imbibition system of claim 1 wherein the lower portion of the piston reservoir is coupled to an infusion pump and wherein the input end of the infusion pump is coupled to a sink.
4. The imbibition system of claim 1 wherein the glass analyzer is positioned vertically downward of the opening and the rock sample is sealingly secured to the glass analyzer.
5. The imbibition system of claim 1 wherein the visual kettle is transparent and a light source and a camera are positioned on the side of the visual kettle.
6. The imbibition system of claim 1 wherein the top of the visual kettle is provided with a safety valve.
7. The imbibition system of claim 1 wherein the back pressure valve comprises a first back pressure valve disposed at an inlet end of the visual kettle and a second back pressure valve disposed at an outlet end of the visual kettle, the second back pressure valve having a second flowmeter disposed in an outlet line of the second back pressure valve.
8. The imbibition system of claim 7 wherein the output of the manual pump is coupled to a surge tank and the output of the surge tank is coupled to the first back pressure valve and the second back pressure valve, respectively, via a line.
9. The imbibition system of claim 7 wherein a second one-way valve is disposed on the line between the first back-pressure valve and the piston reservoir immediately adjacent to the first back-pressure valve.
10. The imbibition system of claim 1 wherein the piston reservoir is provided with a pressure gauge and a temperature gauge adjacent both the upper outlet end and the top of the visual kettle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321107023.3U CN220120650U (en) | 2023-05-09 | 2023-05-09 | A visual CO2 imbibition system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321107023.3U CN220120650U (en) | 2023-05-09 | 2023-05-09 | A visual CO2 imbibition system |
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| CN220120650U true CN220120650U (en) | 2023-12-01 |
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| CN202321107023.3U Active CN220120650U (en) | 2023-05-09 | 2023-05-09 | A visual CO2 imbibition system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116481997A (en) * | 2023-05-09 | 2023-07-25 | 中国华能集团有限公司 | A visual CO2 imbibition system and its working method |
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- 2023-05-09 CN CN202321107023.3U patent/CN220120650U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116481997A (en) * | 2023-05-09 | 2023-07-25 | 中国华能集团有限公司 | A visual CO2 imbibition system and its working method |
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