CN114509374A - Gas-liquid metering device and method - Google Patents
Gas-liquid metering device and method Download PDFInfo
- Publication number
- CN114509374A CN114509374A CN202011283371.7A CN202011283371A CN114509374A CN 114509374 A CN114509374 A CN 114509374A CN 202011283371 A CN202011283371 A CN 202011283371A CN 114509374 A CN114509374 A CN 114509374A
- Authority
- CN
- China
- Prior art keywords
- pressure
- gas
- liquid
- container
- core holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The application provides a gas-liquid metering device and a gas-liquid metering method, and belongs to the technical field of petroleum and natural gas exploitation. By arranging the core holder in the inner cavity of the temperature control unit and applying pressure to the core holder by using the confining pressure pump, the conditions equal to the actual temperature and pressure of the stratum can be provided for the core displacement process, the gas or liquid to be used in the intermediate container is pressed into the core holder through the displacement pump, the liquid or gas in the core of the core holder is displaced, the pressure of the gas or the liquid level of the liquid displaced from the rock core under the temperature and pressure conditions is measured by arranging a first pressure gauge and an ultrasonic detector at the top of the measuring container, therefore, the mass of the gas and the volume of the liquid can be obtained, the mass of the gas and the volume of the liquid obtained by the device can accurately reflect the seepage characteristics of the gas and the liquid under high temperature and high pressure, and the device can be applied to the subsequent analysis of the seepage characteristics of the gas and the liquid.
Description
Technical Field
The application relates to the technical field of oil and gas exploitation, in particular to a gas-liquid metering device and a gas-liquid metering method.
Background
In the process of researching the gas-liquid relative permeability during gas-liquid two-phase seepage, a displacement experiment is generally carried out by adopting a gas displacement liquid or liquid displacement gas mode, and the seepage characteristics of gas and liquid are analyzed by measuring the volume of the gas and liquid displaced in the experiment.
The gas-liquid metering device based on the current common use carries out gas-liquid metering, and the gas-liquid metering is usually carried out at normal temperature and normal pressure, and in the displacement process, the outlet pressure of the rock core is approximately equal to the atmospheric pressure, and the pressure at the upstream of the rock core is only the pressure difference generated by overcoming the seepage resistance, so that the average gas pressure in the rock core is slightly higher than the atmospheric pressure, but is far lower than the pore pressure of an actual gas reservoir.
The gas-liquid volume obtained by the device and the method can only reflect the seepage characteristic of the rock core under normal temperature and normal pressure, and the gas-liquid volume cannot accurately reflect the seepage characteristic of gas-liquid under high temperature and high pressure because the flow capacity of gas-liquid two phases is enhanced and the molecular motion is intensified under the conditions of high temperature and high pressure, so that the gas-liquid phase seepage capacity is greatly enhanced, and the sweep efficiency of gas flooding liquid is higher.
Disclosure of Invention
The embodiment of the application provides a gas-liquid metering device and a gas-liquid metering method, which can accurately reflect the seepage characteristics of gas and liquid at high temperature and high pressure, and are applied to the subsequent analysis of the seepage characteristic research of gas and liquid. The technical scheme is as follows:
in one aspect, a gas-liquid metering device is provided, the device comprising: the core holder is arranged on the core holder, and the core holder is arranged on the core holder;
the displacement pump, the intermediate container, the core holder and the metering container are sequentially connected, the intermediate container, the core holder, the metering container, the first pressure gauge and the ultrasonic detector are all positioned in an inner cavity of the temperature control unit, and the temperature of the inner cavity of the temperature control unit is a preset temperature;
the displacement pump is used for pressing gas and liquid in the intermediate container into the core holder based on preset pressure;
the intermediate container comprises a gas kettle and a liquid kettle which are connected in parallel;
a rock core is fixed in the inner cavity of the rock core holder, and the outlet end of the rock core holder is communicated with the metering container;
the measuring container is used for containing fluid flowing out of the core holder, the fluid is at least one of gas and liquid, the first pressure gauge and the ultrasonic detector are both positioned at the top of the measuring container, the first pressure gauge is used for measuring the pressure of the gas in the measuring container, and the ultrasonic detector is used for detecting the liquid level of the liquid in the measuring container;
the confining pressure pump is communicated with the inner cavity of the core holder and is used for applying preset pressure to the inner cavity of the core holder.
In one possible design, the predetermined pressure is between 68MPa and 72 MPa.
In one possible embodiment, the ultrasonic probe has a transmitting end and a receiving end, which are arranged symmetrically.
In one possible design, the predetermined temperature is between 145 ℃ and 155 ℃.
In one possible design, the temperature control unit includes a heating chamber and a thermometer.
In one possible design, the device further comprises a second pressure gauge and a third pressure gauge;
the second pressure gauge is positioned between the middle container and the core holder;
the third pressure gauge is positioned between the confining pressure pump and the core holder.
In one possible design, the apparatus further includes: a filter positioned between the core holder and the metering container.
In one possible design, the material of the metering container is metal.
In one possible design, the apparatus further includes: a back pressure unit;
this back pressure unit includes: the back pressure valve is positioned between the metering container and the back pressure pump;
the back pressure pump is also provided with a fluid outlet.
In one aspect, there is provided a gas-liquid metering method applied to a gas-liquid metering device as provided in any one of the above possible designs, the method comprising:
fixing a rock core in an inner cavity of the rock core holder;
pressing fluid in the intermediate container into the core holder by using a displacement pump based on a preset pressure, wherein the fluid is at least one of gas and liquid;
after the preset time, the pressure of the gas in the metering container is measured by adopting a first pressure gauge, the quality of the gas is obtained based on the pressure, or the liquid level height of the liquid in the metering container is detected by adopting an ultrasonic detector, and the volume of the liquid is obtained based on the liquid level height.
According to the technical scheme provided by the embodiment of the application, the core holder is arranged in the inner cavity of the temperature control unit, the confining pressure pump is used for applying pressure to the interior of the core holder, the conditions equal to the actual temperature and pressure of the stratum can be provided for the core displacement process, the gas or liquid to be used in the intermediate container is pressed into the core holder through the displacement pump, the liquid or gas in the core of the core holder is displaced, the pressure of the gas or the liquid level of the liquid displaced from the rock core under the temperature and pressure conditions is measured by arranging a first pressure gauge and an ultrasonic detector at the top of the measuring container, therefore, the mass of the gas and the volume of the liquid can be obtained, the mass of the gas and the volume of the liquid obtained by the device can accurately reflect the seepage characteristics of the gas and the liquid under high temperature and high pressure, and the device can be applied to the subsequent analysis of the seepage characteristics of the gas and the liquid.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a gas-liquid metering device provided in an embodiment of the present application;
fig. 2 is a flowchart of a gas-liquid metering method provided in an embodiment of the present application.
The reference numerals for the various parts in the drawings are illustrated below:
1-a displacement pump;
2-an intermediate container;
21-gas kettle;
22-liquid kettle;
3-a core holder;
4-a metering container;
5-a first pressure gauge;
6-ultrasonic detector;
61-a transmitting end;
62-a receiving end;
7-a temperature control unit;
8-enclosing and pressing pump;
9-a second pressure gauge;
10-a third pressure gauge;
11-a filter;
12-a back pressure unit;
121-a back pressure valve;
122-back pressure pump.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Fig. 1 is a schematic structural diagram of a gas-liquid metering device provided in an embodiment of the present application, please refer to fig. 1, where the device includes: the core-breaking device comprises a displacement pump 1, an intermediate container 2, a core holder 3, a metering container 4, a first pressure gauge 5, an ultrasonic detector 6, a temperature control unit 7 and a confining pressure pump 8; the displacement pump 1, the intermediate container 2, the core holder 3 and the measuring container 4 are sequentially connected, the intermediate container 2, the core holder 3, the measuring container 4, the first pressure gauge 5 and the ultrasonic detector 6 are all located in an inner cavity of the temperature control unit 7, and the temperature of the inner cavity of the temperature control unit 7 is a preset temperature; the displacement pump 1 is used for pressing gas and liquid in the intermediate container 2 into the core holder 3 based on a preset pressure; the intermediate container 2 comprises a gas kettle 21 and a liquid kettle 22, wherein the gas kettle 21 and the liquid kettle 22 are connected in parallel; a rock core is fixed in the inner cavity of the rock core holder 3, and the outlet end of the rock core holder 3 is communicated with the metering container 4; the measuring container 4 is used for containing fluid flowing out of the core holder 3, the fluid is at least one of gas and liquid, the first pressure gauge 5 and the ultrasonic detector 6 are both positioned at the top of the measuring container 4, the first pressure gauge 5 is used for measuring the pressure of the gas in the measuring container 4, and the ultrasonic detector 6 is used for detecting the liquid level of the liquid in the measuring container 4; the confining pressure pump 8 is communicated with the inner cavity of the core holder 3 and is used for applying preset pressure to the inner cavity of the core holder 3.
The displacement pump 1 is used for increasing the required high pressure for the displacement process, so that the device can simulate the formation pressure and provide an environment meeting actual conditions for the rock core.
The gas tank 21 in the intermediate container 2 stores the gas needed for displacement, which may be N2、CO2Or gas such as natural gas, the tank 22 storing the liquid to be displaced, which may be water or a gas from a wellThe gas tank 21 and the liquid tank 22 may be opened only one or both of them to release the corresponding fluids, such as the produced liquid.
The inner cavity of the core holder 3 is provided with a space for holding a core, two ends of the core holder 3 are provided with plugs which are equal to or larger than the diameter of the core, and the left end and the right end of the core are fixed on the corresponding plugs.
The metering container 4 is used for containing fluid displaced from the rock core, measuring the pressure of gas through the first pressure gauge 5, and measuring the liquid level height of liquid through the ultrasonic detector 6, so that the pressure of gas or the volume of liquid is obtained.
The temperature in the inner cavity of the temperature control unit 7 can be always kept at the preset temperature in the displacement process, namely, the temperatures of the intermediate container 2, the core holder 3 and the metering container 4 are all preset temperatures, so that the temperature of the fluid before displacement is ensured to be the preset temperature through the intermediate container 2, the temperature of the fluid in the displacement process is ensured to be the preset temperature through the core holder 3, the temperature of the displaced fluid is also the preset temperature when the displaced fluid is metered through the metering container 4, and the accuracy of a metering result is ensured.
The pipeline connected with the confining pressure pump 8 is inserted into the core holder 3 through the outer wall of the core holder 3 and used for enabling the core to be in the preset pressure environment, and therefore the underground environment is fully simulated.
The working principle of the device is described in detail below:
under the conditions of high temperature and high pressure, the gas-water two-phase seepage is simultaneously influenced by the temperature and the pressure, the solubility of natural gas in formation water is rapidly enhanced, the viscosity of the formation water is reduced, the flowing capacity of the gas-water two-phase is enhanced, and the molecular motion can be enhanced at high temperature, so that the gas-water two-phase seepage capacity is greatly enhanced. Meanwhile, the water-gas density ratio and the water-gas viscosity ratio are lower under the conditions of high temperature and high pressure, so that the interfacial tension between gas and water is reduced, the seepage capability of gas and water phases is enhanced, and the sweep efficiency of gas flooding is higher. Of course, in different regions, different reservoir stratum conditions are greatly different, and the gas-water two-phase seepage rules are different, so that specific conditions and specific researches are needed.
The use process of the device can be as follows:
fixing the core in the inner cavity of the core holder 3;
pressing fluid in the intermediate container 2 into the core holder 3 by using a displacement pump 1 based on a preset pressure, wherein the fluid is at least one of gas and liquid;
after the preset time, the pressure of the gas in the measuring container 4 is measured by adopting a first pressure gauge 5, and the quality of the gas is obtained based on the pressure, or the liquid level height of the liquid in the measuring container 4 is detected by adopting an ultrasonic detector 6, and the volume of the liquid is obtained based on the liquid level height.
For example, the device can inject gas into a saturated water core from the left end of a core holder 3 through a high-pressure displacement pump 1, the gas seeps in the core and drives out water, a metal high-pressure container is connected with the outlet end of the core, and the volumes of the gas and the liquid in the container 4 are measured through a first pressure gauge 5 and an ultrasonic detector 6 which are arranged on the top of the container.
The device provided by the embodiment of the application can provide the conditions equal to the actual temperature and pressure of the formation for the displacement process of the core by arranging the core holder 3 in the inner cavity of the temperature control unit 7 and applying the pressure to the core holder 3 by using the confining pressure pump 8, the gas or the liquid to be used in the intermediate container 2 is pressed into the core holder 3 by the displacement pump 1 to displace the liquid or the gas in the core of the core holder 3, the pressure of the gas or the liquid level of the liquid displaced from the core under the temperature and pressure conditions is measured by arranging the first pressure gauge 5 and the ultrasonic detector 6 at the top of the measuring container 4, so that the quality of the gas and the volume of the liquid can be obtained, and the seepage characteristics of the gas and the liquid under high temperature and high pressure can be accurately reflected, the method can be applied to the subsequent analysis of the seepage characteristics of gas and liquid.
The following details the structure and the working principle of each part of the device:
in one possible design, the predetermined pressure is between 68MPa and 72 MPa.
In the device, since the preset pressure is used for simulating the actual pressure in the well, the preset pressure can be set according to the actual condition in the well during the use process, and for example, the preset pressure can be 70 MPa.
In one possible embodiment, the ultrasonic probe 6 has a transmitting end 61 and a receiving end 62, the transmitting end 61 and the receiving end 62 being arranged symmetrically.
In use, the transmitting end 61 of the ultrasonic probe 6 is used for transmitting an ultrasonic signal, the ultrasonic signal is reflected on the liquid surface and then detected by the receiving end 62 of the ultrasonic probe 6, the ultrasonic probe 6 obtains the height difference between the liquid surface and the ultrasonic probe 6 according to the propagation path and the propagation time of the ultrasonic wave, the height of the liquid surface is obtained by subtracting the height difference between the liquid surface and the ultrasonic probe 6 from the height of the measuring container 4, and the liquid volume is obtained by multiplying the cross-sectional area of the inner cavity of the measuring container 4 by the height of the liquid surface.
In one possible design, the predetermined temperature is 145 ℃ to 155 ℃.
In the device, since the preset temperature is used for simulating the actual downhole temperature, the preset temperature can be set according to the actual downhole condition during use, for example, the preset temperature can be 150 ℃.
In one possible design, the temperature control unit 7 comprises a heating box and a thermometer.
The heating box can comprise a controller, a shell and a resistance wire, wherein the resistance wire is connected with a power supply through the controller and used for releasing heat, and the sensing end of the thermometer is positioned in an inner cavity of the heating box and used for measuring the actual temperature in the inner cavity so as to adjust the heating power of the heating box through the controller based on the difference between the actual temperature and the preset temperature.
In a possible design, the device further comprises a second pressure gauge 9 and a third pressure gauge 10; the second pressure gauge 9 is positioned between the middle container 2 and the core holder 3; the third pressure gauge 10 is located between the confining pressure pump 8 and the core holder 3.
The second pressure gauge 9 is used for measuring and outputting the pressure of the fluid for displacement before entering the core holder 3, and based on the indication of the second pressure gauge 9, the output pressure of the displacement pump 1 can be adjusted to make the indication of the second pressure gauge 9 be the preset pressure, that is, to make the pressure of the fluid before displacement be the preset pressure.
The third pressure gauge 10 is used to measure and output the pressure of the fluid displaced from the core holder 3.
By comparing the two pressures, the pressure loss of the fluid after passing through the rock core can be obtained, so that a basis is provided for the subsequent research on the seepage characteristics of the rock core.
In one possible design, the apparatus further includes: a filter 11 is located between the core holder 3 and the metering container 4.
During the experiment, the core to be tested may contain some solid impurities, and during the displacement process at high temperature and high pressure, the solid impurities may flow out from the core along with the fluid, and the solid impurities may be filtered by using the filter 11, so that the subsequent metering process obtains more accurate data. In one possible design, the filter 11 is made of metal mesh, and has the advantages of high temperature resistance, high pressure resistance, high compactness, long service life and the like.
In one possible design, the material of the metering container 4 is metal, and the metal material has the characteristics of high pressure resistance, high temperature resistance and high strength and can bear the heat and pressure caused by the fluid with high pressure and high temperature, and for example, the metal can be heat-resistant steel.
In one possible design, the apparatus further includes: a back pressure unit 12; the back pressure unit 12 includes: a back-pressure valve 121 and a back-pressure pump 122, the back-pressure valve 121 being located between the metering container 4 and the back-pressure pump 122; the back pressure pump 122 also has a fluid outlet.
The back-pressure pump 122 is configured to apply pressure to the back-pressure valve 121, and the back-pressure valve 121 is configured to restore the high-pressure fluid to a lower pressure and a lower temperature, that is, the fluid has a high temperature and a high pressure when flowing out of the metering container 4, and has a low temperature and a low pressure after flowing out of the back-pressure valve 121, and the low-temperature and low-pressure fluid is configured to flow out through the fluid outlet for subsequent processing.
All the above optional technical solutions may be combined arbitrarily to form optional embodiments of the present application, and are not described herein again.
The device provided by the embodiment of the application can provide the conditions equal to the actual temperature and pressure of the formation for the displacement process of the core by arranging the core holder 3 in the inner cavity of the temperature control unit 7 and applying the pressure to the core holder 3 by using the confining pressure pump 8, the gas or the liquid to be used in the intermediate container 2 is pressed into the core holder 3 by the displacement pump 1 to displace the liquid or the gas in the core of the core holder 3, the pressure of the gas or the liquid level of the liquid displaced from the core under the temperature and pressure conditions is measured by arranging the first pressure gauge 5 and the ultrasonic detector 6 at the top of the measuring container 4, so that the quality of the gas and the volume of the liquid can be obtained, and the seepage characteristics of the gas and the liquid under high temperature and high pressure can be accurately reflected, the method can be applied to the subsequent analysis of the seepage characteristics of gas and liquid.
Further, by providing a filter 11 between the core holder 3 and the metering container 4, the filter 11 can be used to filter solid impurities flowing from the core, so that the subsequent metering process can obtain more accurate data.
Fig. 2 is a flowchart of a gas-liquid metering method provided in an embodiment of the present application, please refer to fig. 2, which is applied to a gas-liquid metering device provided in any one of the above possible designs, and the method includes:
201. the core is fixed in the inner cavity of the core holder 3.
In the step, a core is inserted from one end of the core holder 3, plugs with the diameter equal to or larger than that of the core are arranged at two ends of the core holder 3, and the left end and the right end of the core are fixed on the corresponding plugs.
202. The fluid in the intermediate container 2, which is at least one of a gas and a liquid, is pressed into the core holder 3 using the displacement pump 1 based on a preset pressure.
In this step, based on the indication of the second pressure gauge 9, the output pressure of the displacement pump 1 may be adjusted such that the indication of the second pressure gauge 9 is a preset pressure, i.e. the pressure of the fluid before displacement is at the preset pressure.
203. After the preset time, the pressure of the gas in the measuring container 4 is measured by adopting the first pressure gauge 5, and the quality of the gas is obtained based on the pressure, or the liquid level height of the liquid in the measuring container 4 is detected by adopting the ultrasonic detector 6, and the volume of the liquid is obtained based on the liquid level height.
During use, the mass of the gas can be obtained using the pressure of the gas measured by the first pressure gauge 5, and the volume of the metering container 4.
The ultrasonic probe 6 obtains a height difference between the liquid level and the ultrasonic probe 6 from the propagation path and the propagation time of the ultrasonic wave, obtains the liquid level height by subtracting the height difference between the liquid level and the ultrasonic probe 6 from the height of the measuring container 4, and obtains the volume of the liquid by multiplying the liquid level height by the cross-sectional area of the inner cavity of the measuring container 4.
For example, the device can inject gas into a saturated water core from the left end of a core holder 3 through a high-pressure displacement pump 1, the gas seeps in the core and drives out water, a metal high-pressure container is connected with the outlet end of the core, and the volumes of the gas and the liquid in the container 4 are measured through a first pressure gauge 5 and an ultrasonic detector 6 which are arranged on the top of the container.
The device provided by the embodiment of the application can provide the conditions equal to the actual temperature and pressure of the formation for the displacement process of the core by arranging the core holder 3 in the inner cavity of the temperature control unit 7 and applying the pressure to the core holder 3 by using the confining pressure pump 8, the gas or the liquid to be used in the intermediate container 2 is pressed into the core holder 3 by the displacement pump 1 to displace the liquid or the gas in the core of the core holder 3, the pressure of the gas or the liquid level of the liquid displaced from the core under the temperature and pressure conditions is measured by arranging the first pressure gauge 5 and the ultrasonic detector 6 at the top of the measuring container 4, so that the quality of the gas and the volume of the liquid can be obtained, and the seepage characteristics of the gas and the liquid under high temperature and high pressure can be accurately reflected, the method can be applied to the subsequent analysis of the seepage characteristics of gas and liquid.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A gas-liquid metering device, characterized in that the device comprises: the core-breaking device comprises a displacement pump (1), a middle container (2), a core holder (3), a metering container (4), a first pressure gauge (5), an ultrasonic detector (6), a temperature control unit (7) and a confining pressure pump (8);
the displacement pump (1), the middle container (2), the core holder (3) and the metering container (4) are sequentially connected, the middle container (2), the core holder (3), the metering container (4), the first pressure gauge (5) and the ultrasonic detector (6) are all located in an inner cavity of the temperature control unit (7), and the temperature of the inner cavity of the temperature control unit (7) is a preset temperature;
the displacement pump (1) is used for pressing gas and liquid in the intermediate container (2) into the core holder (3) based on preset pressure;
the intermediate container (2) comprises a gas kettle (21) and a liquid kettle (22), and the gas kettle (21) and the liquid kettle (22) are connected in parallel;
a rock core is fixed in the inner cavity of the rock core holder (3), and the outlet end of the rock core holder (3) is communicated with the metering container (4);
the metering container (4) is used for containing fluid flowing out of the core holder (3), the fluid is at least one of gas and liquid, the first pressure gauge (5) and the ultrasonic detector (6) are both positioned at the top of the metering container (4), the first pressure gauge (5) is used for measuring the pressure of the gas in the metering container (4), and the ultrasonic detector (6) is used for detecting the liquid level of the liquid in the metering container (4);
the confining pressure pump (8) is communicated with an inner cavity of the core holder (3) and is used for applying preset pressure to the inner cavity of the core holder (3).
2. The apparatus of claim 1, wherein the predetermined pressure is 68MPa to 72 MPa.
3. The device according to claim 1, characterized in that the ultrasonic probe (6) has a transmitting end (61) and a receiving end (62), the transmitting end (61) and the receiving end (62) being symmetrically arranged.
4. The apparatus of claim 1, wherein the preset temperature is 145-155 ℃.
5. The device according to claim 1, characterized in that the temperature control unit (7) comprises a heating box and a thermometer.
6. The device according to claim 1, characterized in that it further comprises a second pressure gauge (9) and a third pressure gauge (10);
the second pressure gauge (9) is positioned between the intermediate container (2) and the core holder (3);
and the third pressure gauge (10) is positioned between the confining pressure pump (8) and the core holder (3).
7. The apparatus of claim 1, further comprising: a filter (11) located between the core holder (3) and the metering container (4).
8. Device according to claim 1, characterized in that the material of the metering container (4) is metal.
9. The apparatus of claim 1, further comprising: a back pressure unit (12);
the back pressure unit (12) includes: a back-pressure valve (121) and a back-pressure pump (122), the back-pressure valve (121) being located between the metering container (4) and the back-pressure pump (122);
the back pressure pump (122) is also provided with a fluid outlet.
10. A gas-liquid metering method applied to the gas-liquid metering device according to any one of claims 1 to 9, the method comprising:
fixing the rock core in the inner cavity of the rock core holder (3);
based on a preset pressure, pressing fluid in the intermediate container (2) into the core holder (3) by using a displacement pump (1), wherein the fluid is at least one of gas and liquid;
after the preset time, measuring the pressure of the gas in the measuring container (4) by using a first pressure gauge (5), and acquiring the quality of the gas based on the pressure, or detecting the liquid level height of the liquid in the measuring container (4) by using an ultrasonic detector (6), and acquiring the volume of the liquid based on the liquid level height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011283371.7A CN114509374A (en) | 2020-11-17 | 2020-11-17 | Gas-liquid metering device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011283371.7A CN114509374A (en) | 2020-11-17 | 2020-11-17 | Gas-liquid metering device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114509374A true CN114509374A (en) | 2022-05-17 |
Family
ID=81546297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011283371.7A Pending CN114509374A (en) | 2020-11-17 | 2020-11-17 | Gas-liquid metering device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114509374A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0666620A (en) * | 1992-08-20 | 1994-03-11 | Omron Corp | Ultrasonic level indicator |
| CN102865899A (en) * | 2012-09-07 | 2013-01-09 | 中国石油天然气集团公司 | In-situ fluid volume measuring method for use in high-temperature and high-pressure rock core displacement process and device thereof |
| US20150185064A1 (en) * | 2012-06-09 | 2015-07-02 | Schlumberger Technology Corporation | Method for estimating thermodynamic equilibrium of a gas-liquid mixture during filtration experiments |
| CN107290021A (en) * | 2016-03-30 | 2017-10-24 | 中国石油化工股份有限公司 | Metering device and method |
| CN110793901A (en) * | 2019-12-13 | 2020-02-14 | 西南石油大学 | High-temperature high-pressure gas reservoir permeability flow rate sensitivity test method considering bound water |
-
2020
- 2020-11-17 CN CN202011283371.7A patent/CN114509374A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0666620A (en) * | 1992-08-20 | 1994-03-11 | Omron Corp | Ultrasonic level indicator |
| US20150185064A1 (en) * | 2012-06-09 | 2015-07-02 | Schlumberger Technology Corporation | Method for estimating thermodynamic equilibrium of a gas-liquid mixture during filtration experiments |
| CN102865899A (en) * | 2012-09-07 | 2013-01-09 | 中国石油天然气集团公司 | In-situ fluid volume measuring method for use in high-temperature and high-pressure rock core displacement process and device thereof |
| CN107290021A (en) * | 2016-03-30 | 2017-10-24 | 中国石油化工股份有限公司 | Metering device and method |
| CN110793901A (en) * | 2019-12-13 | 2020-02-14 | 西南石油大学 | High-temperature high-pressure gas reservoir permeability flow rate sensitivity test method considering bound water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102192864B (en) | High-temperature, high-pressure, and acid-resisting apparatus for foam generation and dynamic evaluation | |
| EP1167948B1 (en) | Process for evaluating physical parameters of a subterranean reservoir starting from rock debris taken from said reservoir | |
| CN103645126A (en) | Determining method for stratum high-temperature high-pressure gas-phase and water-phase relative permeability curve | |
| CN105784567B (en) | A kind of device and method of testing rock core relative permeability | |
| US7779672B2 (en) | Method and device for measuring the minimum miscibility pressure of two phases | |
| CN110261280A (en) | A kind of reverse imbibition on-line monitoring experimental provision of high temperature and pressure rock core and experimental method | |
| CN110793901A (en) | High-temperature high-pressure gas reservoir permeability flow rate sensitivity test method considering bound water | |
| CN110761749A (en) | Simulation experiment system and experiment method for synthesis and exploitation of natural gas hydrate | |
| Olafuyi et al. | Spontaneous imbibition in small cores | |
| CN113218843A (en) | Multifunctional triaxial experiment system and method for acoustoelectric osmosis and the like | |
| CN205826624U (en) | A kind of long cores hydrocarbon gas drives experimental provision | |
| Dong | Experimental investigation for the effect of the core length on the optimum acid flux in carbonate acidizing | |
| CN208076347U (en) | Rock permeability and compressed coefficient translocation device | |
| CN114509374A (en) | Gas-liquid metering device and method | |
| CN113982572A (en) | Fracturing energy storage integrated experimental method and experimental device | |
| CN110320341A (en) | Fluid phase state test device and experimental method in porous media | |
| CN205749187U (en) | A kind of air content measuring system | |
| CN109580448A (en) | Starting Pressure Gradient in Low Permeability Reservoir test device and method | |
| CN106448421A (en) | Dense oil reservoir exploitation simulation device and method | |
| CN115200977A (en) | Core stress sensitivity evaluation device and method under high-temperature and high-pressure conditions | |
| CN115290531A (en) | Device and method for evaluating condensate gas reservoir liquid phase damage | |
| CN210919000U (en) | Natural gas hydrate synthesis and exploitation simulation experiment system | |
| CN111693676B (en) | System and method for measuring bubble point pressure of crude oil in porous medium | |
| CN111912756B (en) | Measuring device and measuring method for core pore compression coefficient | |
| RU2535527C1 (en) | Method of determining quantitative composition of multi-component medium (versions) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |