CN114166714A - Penetration test device for simulating gas-liquid two-phase flow in coal body - Google Patents
Penetration test device for simulating gas-liquid two-phase flow in coal body Download PDFInfo
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- CN114166714A CN114166714A CN202111330732.3A CN202111330732A CN114166714A CN 114166714 A CN114166714 A CN 114166714A CN 202111330732 A CN202111330732 A CN 202111330732A CN 114166714 A CN114166714 A CN 114166714A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
Abstract
The invention belongs to the technical field of simulation penetration tests and discloses a penetration test device for simulating gas-liquid two-phase flow in coal, wherein a gas tank is provided with a gas pump, the gas pump is connected with a gas flow velocity acquisition module through a gas pipe, and the gas flow velocity acquisition module is connected with a coal sample processing detection module through the gas pipe; the water tank is provided with a water pump, the water pump is connected with a water flow speed acquisition module through an air pipe, and the water flow speed acquisition module is connected with a coal sample processing and detecting module through a pipeline; the coal sample processing and detecting module is connected with the central control processing module, the central control processing module is connected with the communication module, and the communication module is connected with the cloud server; the gas flow rate acquisition module and the water flow rate acquisition module are respectively connected with the central control processing module; the central control processing module is respectively connected with the air pump and the water pump. The invention can improve the speed and accuracy of data processing and effectively process the penetration test data of gas-liquid two-phase flow in the simulated coal body.
Description
Technical Field
The invention belongs to the technical field of simulation permeation tests, and particularly relates to a permeation test device for simulating gas-liquid two-phase flow in coal gas.
Background
At present, coal bed gas reservoirs in China generally have the characteristics of low pressure, low permeability and low gas saturation, so that the conditions of low single-well yield and poor economic benefit generally exist in coal bed gas well development. If only a method for reducing the coal bed pressure by pumping and draining formation water in the coal bed is adopted, methane gas absorbed in the coal bed is released, and no production increasing measures are taken, so that the yield of a single coal bed methane well is low, and the coal bed methane exploitation well loses the exploitation value. For coal seam mining, the coal body permeability test plays a critical role. The permeability test is a test for measuring the permeability coefficient of rock soil by using some test instruments and is divided into an indoor test and a field test. The penetration test is divided into two main types of indoor test and field determination test. The types of instruments and test methods for measuring the permeability coefficient k in a laboratory are many, but the test principle can be roughly divided into a normal head method and a variable head method. The permeability test carried out in the field is also called water seepage test (infilteration test), generally adopts a test pit water seepage test, and is a simple method for measuring permeability coefficients of an aeration zone loose layer and a rock stratum in the field. The test pit seepage test is usually carried out by a test pit method, a single-ring method and a double-ring method. However, in the prior art, when the penetration test device for simulating gas-liquid two-phase flow in coal is used, test data cannot be rapidly and accurately processed, and safety and reliability of coal mining are reduced.
Through the above analysis, the problems and defects of the prior art are as follows: in the prior art, when the penetration test equipment for simulating gas-liquid two-phase flow in coal is used, test data cannot be rapidly and accurately processed, and the safety and reliability of coal mining are reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a penetration test device for simulating gas-liquid two-phase flow in coal.
The invention is realized in such a way that the penetration test device for simulating the gas-liquid two-phase flow in the coal body is provided with a gas tank and a water tank; the gas tank is provided with a gas pump, the gas pump is connected with a gas flow rate acquisition module through a gas pipe, and the gas flow rate acquisition module is connected with a coal sample processing and detecting module through a gas pipe;
the water tank is provided with a water pump, the water pump is connected with a water flow speed acquisition module through an air pipe, and the water flow speed acquisition module is connected with a coal sample processing and detecting module through a pipeline;
the coal sample processing and detecting module is connected with the central control processing module, the central control processing module is connected with the communication module, and the communication module is connected with the cloud server; the gas flow rate acquisition module and the water flow rate acquisition module are respectively connected with the central control processing module;
the coal sample processing and detecting module is internally provided with:
the pressure regulating module changes the pressure in the coal sample sealed storage box through the air extracting pump;
the pressure detection module is used for detecting the pressure change in the coal sample sealed placing box by installing a pressure sensor in the coal sample sealed placing box;
and the coal sample saturation detection module is used for detecting the saturation of the fluid in the coal sample through the fluid saturation detector.
Further, the central control processing module is provided with:
the data analysis module is used for analyzing data obtained by a permeation test of gas-liquid two-phase flow in the coal body through a data analysis program;
the data clustering module is used for classifying and storing the penetration test of the gas-liquid two-phase flow in the simulated coal gas through a data clustering algorithm;
and the data fusion module is used for carrying out fusion processing on the acquired data through a data fusion algorithm.
Further, the coal sample processing and detecting module is provided with a shell, a sensor mounting seat is arranged inside the shell, and a coal sample mounting frame is arranged in the middle of the shell.
Further, the coal sample mounting rack is provided with a base, and a side edge supporting frame is mounted on the upper side of the base; the upside panel is installed to side support frame upside, and the upside panel has connect the threaded rod soon through the screw hole.
Further, a knob is installed on the upper side of the threaded rod, and anti-skid grains are arranged on the knob.
Furthermore, a pressing plate is installed at the lower end of the threaded rod, and anti-skidding concave-convex points are arranged on the lower end face of the pressing plate.
Further, an air pump and a fluid saturation detector are installed on the right side of the shell.
Further, the sensor mounting seat is provided with a mounting bottom plate, and a sensor mounting frame is installed on the upper side of the mounting bottom plate.
Further, a supporting plate is installed on the upper side of the sensor mounting frame, a fixing clamping seat is installed on the upper side of the supporting plate, and the fixing clamping seat is connected with the opening and closing clamping seat through a screw.
Further, a mounting clamp hole is formed between the fixed clamp seat and the opening and closing clamp seat.
By combining all the technical schemes, the invention has the advantages and positive effects that: according to the invention, the coal sample processing detection module is connected with the central control processing module, the central control processing module is connected with the communication module, and the communication module is connected with the cloud server, so that the data processing speed and accuracy can be improved, and the penetration test data of gas-liquid two-phase flow in the simulated coal body can be effectively processed. Meanwhile, the gas flow velocity acquisition module and the water flow velocity acquisition module are respectively connected with the central control processing module, and the central control processing module is respectively connected with the air pump and the water pump, so that the flow velocity of gas and fluid can be controlled in real time, and the test effect is improved. According to the invention, the pressure adjusting module, the pressure detecting module and the coal sample saturation detecting module are integrated in the coal sample processing and detecting module, so that the coal sample detecting efficiency is improved, and the detecting time is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a permeation test apparatus for simulating a gas-liquid two-phase flow in a coal fluid according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a coal sample processing and detecting module according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a central control processing module according to an embodiment of the present invention.
Fig. 4 is a schematic view of an internal structure of a coal sample processing and detecting module according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a coal sample mounting rack provided in an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a sensor mounting seat according to an embodiment of the present invention.
In the figure: 1. a gas tank; 2. an air pump; 3. a gas flow rate acquisition module; 4. a water tank; 5. a water pump; 6. a water flow rate acquisition module; 7. a coal sample processing and detecting module; 8. a central control processing module; 9. a communication module; 10. A cloud server; 11. a pressure intensity adjusting module; 12. a pressure intensity detection module; 13. a coal sample saturation detection module; 14. a data analysis module; 15. a data clustering module; 16. a data fusion module; 17. a housing; 18. A coal sample mounting rack; 19. a fluid saturation detector; 20. an air pump; 21. a sensor mount; 22. A base; 23. a side support frame; 24. a pressing plate; 25. an upper side panel; 26. a threaded rod; 27. a knob; 28. mounting a bottom plate; 29. a sensor mounting bracket; 30. fixing the card holder; 31. installing a clamping hole; 32. a screw; 33. an opening and closing card seat.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Aiming at the problems in the prior art, the invention provides a penetration test device for simulating gas-liquid two-phase flow in coal, and the invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the penetration test device for simulating gas-liquid two-phase flow in coal provided by the embodiment of the invention is provided with a gas pump 2 mounted on a gas tank 1, the gas pump 2 is connected with a gas flow rate acquisition module 3 through a gas pipe, and the gas flow rate acquisition module is connected with a coal sample processing detection module 7 through a gas pipe; a water pump 5 is arranged on the water tank 4, the water pump 5 is connected with a water flow speed acquisition module 6 through an air pipe, and the water flow speed acquisition module 6 is connected with a coal sample processing and detecting module 7 through a pipeline; the coal sample processing detection module 7 is connected with the central control processing module 8, the central control processing module 8 is connected with the communication module 9, the communication module 9 is connected with the cloud server 10, the gas flow rate acquisition module 3 and the water flow rate acquisition module 6 are respectively connected with the central control processing module 8, and the central control processing module 8 is respectively connected with the air pump 2 and the water pump 5.
The air pump 2 conveys air to the coal sample processing and detecting module 7, and the water pump 5 conveys water to the coal sample processing and detecting module 7. The gas flow velocity acquisition module 3 detects the gas flow velocity, the water flow velocity acquisition module 6 detects the water flow velocity, and transmits data to the central control processing module 8, the central control processing module 8 controls the conveying speed of the air pump 2 and the water pump 5, a certain test speed is injected into a test coal sample until balance is established, and the saturation of fluid in the coal sample is measured.
As shown in fig. 2, the coal sample processing and detecting module 7 provided in the embodiment of the present invention is internally provided with:
the pressure adjusting module 11 changes the pressure in the coal sample sealed storage box through the air pump;
the pressure detection module 12 is used for detecting the pressure change in the coal sample sealed storage box by installing a pressure sensor in the coal sample sealed storage box.
And the coal sample saturation detection module 13 is used for detecting the saturation of the fluid in the coal sample through a fluid saturation detector.
As shown in fig. 3, the central control processing module 8 provided in the embodiment of the present invention is provided with:
and the data analysis module 14 is used for analyzing the data obtained by the permeation test of the gas-liquid two-phase flow in the coal body through a data analysis program.
And the data clustering module 15 is used for classifying and storing the penetration test of the gas-liquid two-phase flow in the simulated coal gas through a data clustering algorithm.
And the data fusion module 16 performs fusion processing on the acquired data through a data fusion algorithm.
As shown in fig. 4, the coal sample processing and detecting module 7 of the present invention is provided with a housing 17, a sensor mounting seat 21 is installed inside the housing 17, and a coal sample mounting frame 18 is installed in the middle of the housing 17; the right side of the housing 17 is provided with a suction pump 20 and a fluid saturation detector 19.
As shown in fig. 5, the coal sample mounting rack 18 is provided with a base 22, and a side supporting frame 23 is installed on the upper side of the base 22; an upper side panel 25 is installed on the upper side of the side support frame 23, a threaded rod 26 is screwed on the upper side panel 25 through a threaded hole, a knob 27 is installed on the upper side of the threaded rod 26, anti-skidding lines are arranged on the knob 27, a pressing plate 24 is installed at the lower end of the threaded rod 26, and anti-skidding concave-convex points are arranged on the lower end face of the pressing plate 24.
As shown in fig. 6, the sensor mounting seat 21 is provided with a mounting base plate 28, a sensor mounting frame 29 is mounted on the upper side of the mounting base plate 28, a supporting plate is mounted on the upper side of the sensor mounting frame 29, a fixing clamping seat 30 is mounted on the upper side of the supporting plate, and the fixing clamping seat 30 is connected with an opening and closing clamping seat 33 through a screw 32. A mounting clamping hole 31 is formed between the fixed clamping seat 30 and the opening clamping seat 33.
The working principle of the invention is as follows: the air pump 2 conveys air to the coal sample processing and detecting module 7, and the water pump 5 conveys water to the coal sample processing and detecting module 7. The gas flow velocity acquisition module 3 detects the gas flow velocity, the water flow velocity acquisition module 6 detects the water flow velocity, and transmits data to the central control processing module 8, the central control processing module 8 controls the conveying speed of the air pump 2 and the water pump 5, a certain test speed is injected into a test coal sample until balance is established, and the saturation of fluid in the coal sample is measured.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A penetration test device for simulating gas-liquid two-phase flow in coal is characterized in that the penetration test device for simulating gas-liquid two-phase flow in coal is provided with:
a gas tank and a water tank;
the gas tank is provided with a gas pump, the gas pump is connected with a gas flow rate acquisition module through a gas pipe, and the gas flow rate acquisition module is connected with a coal sample processing and detecting module through a gas pipe;
the water tank is provided with a water pump, the water pump is connected with a water flow speed acquisition module through an air pipe, and the water flow speed acquisition module is connected with a coal sample processing and detecting module through a pipeline;
the coal sample processing and detecting module is connected with the central control processing module, the central control processing module is connected with the communication module, and the communication module is connected with the cloud server; the gas flow rate acquisition module and the water flow rate acquisition module are respectively connected with the central control processing module; the central control processing module is respectively connected with the air pump and the water pump;
the coal sample processing and detecting module is internally provided with:
the pressure regulating module changes the pressure in the coal sample sealed storage box through the air extracting pump;
the pressure detection module is used for detecting the pressure change in the coal sample sealed placing box by installing a pressure sensor in the coal sample sealed placing box;
and the coal sample saturation detection module is used for detecting the saturation of the fluid in the coal sample through the fluid saturation detector.
2. The apparatus for simulating a two-phase gas-liquid flow in a coal body according to claim 1, wherein the central control processing module is provided with:
the data analysis module is used for analyzing data obtained by a permeation test of gas-liquid two-phase flow in the coal body through a data analysis program;
the data clustering module is used for classifying and storing the penetration test of the gas-liquid two-phase flow in the simulated coal gas through a data clustering algorithm;
and the data fusion module is used for carrying out fusion processing on the acquired data through a data fusion algorithm.
3. The apparatus for simulating the penetration test of a gas-liquid two-phase flow in a coal body according to claim 1, wherein the coal sample processing and detecting module is provided with a housing, a sensor mounting seat is installed inside the housing, and a coal sample mounting rack is installed in the middle of the housing.
4. The penetration test device for simulating the gas-liquid two-phase flow in the coal gas according to claim 3, wherein the coal sample mounting frame is provided with a base, and a side supporting frame is arranged on the upper side of the base; the upside panel is installed to side support frame upside, and the upside panel has connect the threaded rod soon through the screw hole.
5. The penetration test device for simulating gas-liquid two-phase flow in coal body according to claim 4, wherein a knob is installed on the upper side of the threaded rod, and anti-skid grains are arranged on the knob.
6. The penetration test device for simulating gas-liquid two-phase flow in coal body according to claim 4, wherein a pressing plate is installed at the lower end of the threaded rod, and anti-skid concave-convex points are arranged on the lower end face of the pressing plate.
7. A penetration test apparatus for simulating a two-phase gas-liquid flow in a coal gas according to claim 3, wherein an air pump and a fluid saturation detector are installed on the right side of the casing.
8. A penetration test device for simulating a two-phase gas-liquid flow in a coal gas according to claim 3, wherein the sensor mounting base is provided with a mounting base plate, and a sensor mounting rack is mounted on the upper side of the mounting base plate.
9. The apparatus for simulating the permeation test of a gas-liquid two-phase flow in a coal body according to claim 8, wherein a supporting plate is installed on the upper side of the sensor mounting frame, a fixing clamping seat is installed on the upper side of the supporting plate, and the fixing clamping seat is connected with the opening and closing clamping seat through a screw.
10. The apparatus for testing the penetration of a gas-liquid two-phase flow in a simulated coal body according to claim 9, wherein a mounting hole is formed between the fixed clamping seat and the opening and closing clamping seat.
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| CN202111330732.3A CN114166714A (en) | 2021-11-11 | 2021-11-11 | Penetration test device for simulating gas-liquid two-phase flow in coal body |
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| CN202111330732.3A CN114166714A (en) | 2021-11-11 | 2021-11-11 | Penetration test device for simulating gas-liquid two-phase flow in coal body |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036953A (en) * | 2017-03-31 | 2017-08-11 | 太原理工大学 | The experimental rig and test method of gas-liquid two-phase seepage flow in a kind of simulation coal body |
| US20170292904A1 (en) * | 2015-09-23 | 2017-10-12 | China University Of Petroleum (East China) | Test system and test method for a simulation experiment of gas hydrate in a porous medium |
| CN109632557A (en) * | 2019-01-22 | 2019-04-16 | 中国矿业大学 | A kind of gas-liquid two-phase saturation coal petrography sample experimental provision and saturation degree test method |
| CN109991394A (en) * | 2019-05-09 | 2019-07-09 | 河南理工大学 | A kind of expansive rock hydration swelling force test device and test method |
| CN113218838A (en) * | 2021-04-23 | 2021-08-06 | 江西理工大学 | Coal core permeability tester and testing method |
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2021
- 2021-11-11 CN CN202111330732.3A patent/CN114166714A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170292904A1 (en) * | 2015-09-23 | 2017-10-12 | China University Of Petroleum (East China) | Test system and test method for a simulation experiment of gas hydrate in a porous medium |
| CN107036953A (en) * | 2017-03-31 | 2017-08-11 | 太原理工大学 | The experimental rig and test method of gas-liquid two-phase seepage flow in a kind of simulation coal body |
| CN109632557A (en) * | 2019-01-22 | 2019-04-16 | 中国矿业大学 | A kind of gas-liquid two-phase saturation coal petrography sample experimental provision and saturation degree test method |
| CN109991394A (en) * | 2019-05-09 | 2019-07-09 | 河南理工大学 | A kind of expansive rock hydration swelling force test device and test method |
| CN113218838A (en) * | 2021-04-23 | 2021-08-06 | 江西理工大学 | Coal core permeability tester and testing method |
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