CN211453271U - Permeability testing device - Google Patents
Permeability testing device Download PDFInfo
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- CN211453271U CN211453271U CN201921285458.0U CN201921285458U CN211453271U CN 211453271 U CN211453271 U CN 211453271U CN 201921285458 U CN201921285458 U CN 201921285458U CN 211453271 U CN211453271 U CN 211453271U
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- 230000035699 permeability Effects 0.000 title claims abstract description 88
- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 230000001105 regulatory effect Effects 0.000 claims abstract description 66
- 239000012530 fluid Substances 0.000 claims abstract description 60
- 239000011435 rock Substances 0.000 claims abstract description 40
- 230000001276 controlling effect Effects 0.000 claims description 10
- 239000010779 crude oil Substances 0.000 description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
- 238000000034 method Methods 0.000 description 10
- 239000003350 kerosene Substances 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005325 percolation Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a permeability testing arrangement, include: the core control device comprises at least two middle containers, at least two regulating valves, a flow pump, a first pressure sensor, a second pressure sensor and control equipment, wherein the first pressure sensor and the second pressure sensor are located at two ends of a core, the at least two middle containers are connected with one ends of the at least two regulating valves, each middle container corresponds to one regulating valve, the other ends of the at least two regulating valves are connected with one end of the flow pump, the other end of the flow pump is connected with one end of the core, the at least two regulating valves are connected with the control equipment, and the first pressure sensor and the second pressure sensor are respectively connected with the control equipment. Like this, need not to insert alone fluid and carry out the rock permeability test the utility model provides an among the permeability testing arrangement through the fluidic flow of control governing valve to realize automatic control through controlgear, thereby the test obtains the rock permeability.
Description
Technical Field
The utility model relates to an oil and natural gas exploitation field especially relates to a permeability testing arrangement.
Background
At present, the permeability of reservoir rock of an oil and gas well has great significance for researching the reservoir of the oil and gas well. Permeability refers to the ability of the rock to allow fluid to pass through at a certain pressure differential, where permeability includes absolute permeability, effective permeability, and relative permeability. The absolute permeability means that only one-phase fluid exists in rock pores, the fluid does not have any physical and chemical reaction with the rock, and the flow of the fluid conforms to the permeability measured in real time by Darcy's straight-line percolation law; effective permeability refers to the capacity of rock pores to allow the passage of two or more immiscible fluids when they are present at the same time; relative permeability refers to the ratio of effective permeability to absolute permeability of each phase when multiphase fluids coexist.
In the prior art, crude oil, kerosene, water and the like are required to be independently accessed to rocks to test the permeability of the rocks, and a plurality of rocks of the same reservoir are generally required to test the permeability of the rocks.
However, in the above mode, crude oil, kerosene and water are independently connected to test the permeability of the rock, so that the test device is complex to assemble and disassemble, and wastes time and labor.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model provides a permeability testing arrangement need not to insert alone fluid test rock permeability to improve efficiency of software testing.
In a first aspect, an embodiment of the present invention provides a permeability testing apparatus, including:
the core control system comprises at least two intermediate containers, at least two regulating valves, a flow pump, a first pressure sensor, a second pressure sensor and control equipment, wherein the first pressure sensor and the second pressure sensor are positioned at two ends of a core;
the at least two intermediate containers are connected with one ends of the at least two regulating valves, each intermediate container corresponds to one regulating valve, the other ends of the at least two regulating valves are connected with one end of the flow pump, the other end of the flow pump is connected with one end of the rock core, the at least two regulating valves are connected with the control equipment, and the first pressure sensor and the second pressure sensor are respectively connected with the control equipment;
the core permeability measuring device comprises at least two middle containers, at least two regulating valves, a control device and a control device, wherein the at least two middle containers are used for storing different types of fluids, the at least two regulating valves are used for controlling the flow of the fluids and sending the flow of the fluids to the control device, the flow pump is used for injecting the fluids into the core, the first pressure sensor and the second pressure sensor are used for detecting pressure signals at two ends of the core and sending the pressure signals to the control device, and the control device is used for receiving the flow of the fluids and the pressure signals and obtaining the permeability of the core according to the flow of the fluids and the pressure signals.
Optionally, the apparatus further comprises:
the measuring device is used for measuring core parameters and fluid viscosity and sending the core parameters and the fluid viscosity to the control equipment, wherein the core parameters comprise the length and the sectional area of the core.
Optionally, the apparatus further comprises:
and one end of the flow meter is connected with the second pressure sensor.
Optionally, the apparatus further comprises:
an air compressor for injecting air into the core.
Optionally, the apparatus further comprises:
and one end of the air regulating valve is connected with the air compressor, and the air regulating valve is used for controlling the flow of air and sending the flow of the air to the control equipment.
Optionally, the apparatus further comprises:
and the sampler is connected with the other end of the flowmeter.
Optionally, the apparatus further comprises:
a regulating valve located intermediate the sampler and the flow meter.
Optionally, the apparatus further comprises:
and the pressure sensor is connected with the other end of the air regulating valve.
Optionally, the apparatus further comprises:
a pressure sensor located intermediate the flow pump and the at least two regulator valves.
Optionally, the apparatus further comprises:
the core holder is used for holding the core.
The embodiment of the utility model provides a permeability testing arrangement, include: the core control device comprises at least two middle containers, at least two regulating valves, a flow pump, a first pressure sensor, a second pressure sensor and control equipment, wherein the first pressure sensor and the second pressure sensor are located at two ends of a core, the at least two middle containers are connected with one ends of the at least two regulating valves, each middle container corresponds to one regulating valve, the other ends of the at least two regulating valves are connected with one end of the flow pump, the other end of the flow pump is connected with one end of the core, the at least two regulating valves are connected with the control equipment, and the first pressure sensor and the second pressure sensor are respectively connected with the control equipment. Like this, need not to insert alone fluid and carry out the rock permeability test the utility model provides an among the permeability testing arrangement through the fluidic flow of control governing valve to realize automatic control through controlgear, thereby the test obtains the rock permeability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic view of a permeability testing apparatus according to an embodiment of the present invention;
fig. 2 is a schematic view of a permeability testing apparatus according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a control device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The following explains the terms of art mentioned in the embodiments of the present invention.
Core: according to the requirements of geological exploration work or engineering, a cylindrical rock sample is taken out from a hole by using a ring-shaped core bit and other coring tools.
Permeability: including absolute permeability, effective permeability, and relative permeability. The absolute permeability means that only one-phase fluid exists in rock pores, the fluid does not have any physical and chemical reaction with the rock, and the flow of the fluid conforms to the permeability measured in real time by Darcy's straight-line percolation law; effective permeability refers to the capacity of rock pores to allow the passage of two or more immiscible fluids when they are present at the same time; relative permeability refers to the ratio of effective permeability to absolute permeability of each phase when multiphase fluids coexist.
The device aims at solving the problems that in the prior art, crude oil, kerosene, water and the like need to be independently accessed when the permeability of rocks is tested, so that the device is complex to disassemble and assemble, and wastes time and labor during testing.
An embodiment of the utility model provides a permeability testing arrangement, include: the core control system comprises at least two intermediate containers, at least two regulating valves, a flow pump, a first pressure sensor, a second pressure sensor and control equipment, wherein the first pressure sensor and the second pressure sensor are positioned at two ends of a core, the at least two intermediate containers are connected with one end of the at least two regulating valves, each intermediate container corresponds to one regulating valve, the other end of the at least two regulating valves is connected with one end of the flow pump, the other end of the flow pump is connected with one end of the core, the at least two regulating valves are connected with the control equipment, the first pressure sensor and the second pressure sensor are respectively connected with the control equipment, the at least two intermediate containers are used for storing different types of fluids, the at least two regulating valves are used for controlling the flow of the fluids and sending the flow of the fluids to the control equipment, the flow pump is used for injecting the fluids into the core, and the first pressure, and sending the pressure signal to a control device, wherein the control device is used for receiving the flow and pressure signals of the fluid and acquiring the permeability of the rock core according to the flow and pressure signals of the fluid. Like this, need not to insert alone fluid and carry out the rock permeability test the utility model provides an among the permeability testing arrangement through the fluidic flow of control governing valve to realize automatic control through controlgear, thereby the test obtains the rock permeability.
The following provides a detailed description of the system and method for determining oil-water distribution according to the present invention. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 1 is a schematic view of a permeability testing apparatus according to an embodiment of the present invention. As shown in fig. 1, the embodiment of the present invention provides a permeability testing apparatus, including:
at least two intermediate containers 01, at least two regulating valves 02, a flow pump 03, a first pressure sensor 04 and a second pressure sensor 05 at both ends of the core, and a control device 06.
The core control system comprises at least two middle containers 01 and at least two regulating valves 02, wherein one end of each middle container 01 corresponds to one regulating valve 02, the other ends of the at least two regulating valves 02 are connected with one end of a flow pump 03, the other end of the flow pump 03 is connected with one end of a core, the at least two regulating valves 02 are connected with control equipment 06, and a first pressure sensor 04 and a second pressure sensor 05 which are positioned at the two ends of the core are respectively connected with the control equipment 06.
Wherein at least two intermediate containers 01 are used for storing different types of fluids, such as: an intermediate container is used for storing water, an intermediate container is used for storing kerosene, an intermediate container is used for storing crude oil etc. the utility model discloses do not do the restriction to the quantity of intermediate container, according to actual conditions confirm can.
At least two regulating valves 02 are used for controlling the flow of the fluid, as shown in fig. 1, the number of regulating valves is the same as the number of intermediate containers, and specifically, the regulating valves are used for regulating the flow of the fluid at the outlet end in the intermediate containers and sending the flow of the fluid to the control device 05, so that the control device records the flow of the fluid.
The flow pump 03 is used to inject fluid into the core.
The first pressure sensor 04 and the second pressure sensor 05 are used for detecting pressure signals at two ends of the core, specifically for detecting pressure signals at two ends of the core after fluid injection, and simultaneously sending the pressure signals to the control device 06.
It is worth noting that this process actually simulates the amount of pressure at the ends of permeable rock present in the actual reservoir.
The control device 06 is configured to receive the flow and pressure signals of the fluid, and obtain the permeability of the core according to the flow and pressure signals of the fluid.
Optionally, the control device 06 can also be used to control the switching of at least two regulating valves.
In practical application, for example, in experiment 1, the at least two intermediate containers include intermediate container 1, intermediate container 2, and intermediate container 3, wherein intermediate container 1 is used for storing crude oil, intermediate container 2 is used for storing kerosene, and intermediate container 3 is used for storing water. When the crude oil is used for testing the absolute permeability of the rock, the control device 06 can control the regulating valves of the intermediate container 2 and the intermediate container 3 to be closed, control the regulating valve of the intermediate container 1 to be opened, control the flow of the crude oil through the regulating valve of the intermediate container 1, and send the flow of the crude oil to the control device. The utility model discloses do not restrict to the flow of crude oil, according to actual demand confirm can.
And then, injecting the crude oil into the core by the flow pump 03, detecting pressure signals at two ends of the core by the first pressure sensor 04 and the second pressure sensor 05 when the flow of the crude oil is stable, namely when the flow of the crude oil at the inlet and outlet ends of the core is consistent, and sending the pressure signals to the control equipment 06, wherein the control equipment receives the pressure signals and the flow of the crude oil, and calculates the rock absolute permeability measured by the crude oil according to the formula (1). The calculation formula is as follows:
K＝QμL/ΔPA (1)
wherein, Q represents the flow of the fluid passing through the core in unit time, and the unit is: cm3/s；
A represents the cross-sectional area of the core, in units: cm2；
μ represents the viscosity of the liquid, in units: pa · s;
l represents the length of the core in units: cm;
Δ P represents the pressure difference before and after the liquid passed through the core, in units: MPa;
k represents the absolute permeability of the core.
In this example, the length L of the core, the viscosity of the crude oil, and the sectional area a of the core are measured in advance and stored in the control device 06, and after the control device receives the pressure signals detected by the pressure sensors located at the two ends of the core, the pressure difference Δ P between the two ends of the core is obtained according to the pressure signals and the mapping table of the pressure values, so that the absolute permeability of the rock measured by the crude oil is automatically calculated according to the formula (1).
Likewise, the implementation of the absolute permeability of rock by water or kerosene measurement is described with reference to the above examples and will not be described herein.
Exemplarily, in experiment 2, the at least two intermediate vessels comprise intermediate vessel 1, intermediate vessel 2, intermediate vessel 3, intermediate vessel 1 being for storing crude oil, intermediate vessel 2 being for storing kerosene, intermediate vessel 3 being for storing water. When adopting crude oil and water to test the effective permeability of rock, controlgear 05 can control the governing valve wall built-up of middle container 2, and the governing valve of control middle container 1, 3 is opened to the flow of governing valve control flow crude oil through middle container 1, the flow of governing valve control flow crude oil through middle container 3, for example: 20% crude oil, 80% water and sends the flow of this fluid to the control device 05.
Then, 20% of crude oil and 80% of water are injected into the core through the flow pump 03, pressure signals are detected through the pressure sensors 04 located at the two ends of the core, after the control device 06 receives the pressure signals detected by the pressure sensors located at the two ends of the core, the pressure difference delta P at the two ends of the core is obtained according to the pressure signals and the mapping table of the pressure values, and therefore the control device 06 calculates the effective permeability of the core measured by the crude oil and the water according to the formula (2) and the formula (2). Specifically, the method comprises the following steps:
the effective permeability of the crude oil measured core is as follows:
Ko＝Q0μol/Δ PA equation (2)
Wherein Q is0Represents the flow of crude oil through the core per unit time, unit: cm3/s；
A represents the cross-sectional area of the core, in units: cm2；
μoViscosity, unit: pa · s;
l represents the length of the core in units: cm;
Δ P represents the pressure difference before and after the liquid passed through the core, in units: MPa;
Korepresenting the effective permeability of the core as determined by crude oil.
The effective permeability of the core measured by water is as follows:
Kw＝Qwμwl/delta PA formula (3)
Wherein Q iswRepresents the flow of water through the core per unit time, unit: cm3/s；
A represents the cross-sectional area of the core, in units: cm2；
μwDenotes the viscosity of water, in units: pa · s;
l represents the length of the core in units: cm;
Δ P represents the pressure difference before and after water passage through the core, in units: MPa;
Kwthe effective permeability of the core for water measurements is indicated.
Thus, the relative rock permeability as determined by crude oil is equal to the ratio of the effective permeability to the absolute permeability, i.e., K/Kw。
It should be noted that the process of determining the relative permeability of the core by water is similar to the process of determining the relative permeability of the core by crude oil, and thus the description thereof is omitted.
For example, after the rock permeability is measured by using water in experiment 1, if 20% of crude oil and 80% of water are needed to measure the effective permeability of the rock in experiment 2, the water in experiment 1 can be discharged by 80%, and then 80% of crude oil is injected into the core through an adjusting valve, so that the effective permeability of the rock can be further measured on the basis of experiment 1.
The permeability testing device that this embodiment provided includes: the core control system comprises at least two middle containers, at least two regulating valves, a flow pump, a first pressure sensor, a second pressure sensor and control equipment, wherein the first pressure sensor and the second pressure sensor are located at two ends of a core, the at least two middle containers are connected with one ends of the at least two regulating valves, each middle container corresponds to one regulating valve, the other ends of the at least two regulating valves are connected with one end of the flow pump, the other end of the flow pump is connected with one end of the core, the at least two regulating valves are connected with the control equipment, and the first pressure sensor and the second pressure sensor are respectively connected with the control equipment. Therefore, the permeability test can be carried out without independently accessing the fluid, the flow of the fluid is controlled by controlling the regulating valve, and the automatic control is realized by the control equipment, so that the permeability of the rock is tested.
On the basis of the above embodiment, fig. 2 is a schematic diagram of a permeability testing apparatus provided by another embodiment of the present invention, as shown in fig. 2, the permeability testing apparatus further includes:
and the measuring device 07 is used for measuring the core parameters and the fluid viscosity, and sending the core parameters and the fluid viscosity to the control equipment 06, wherein the core parameters comprise the length and the sectional area of the core.
Optionally, the apparatus further comprises:
the flow meter 08 has one end connected to the second pressure sensor 05.
Illustratively, when the absolute permeability of the core is measured by using crude oil, after the crude oil is injected into the core according to a certain flow rate by the flow pump 03, the crude oil will flow out from the other end of the core, the flow meter 07 is used for measuring the crude oil flow rate at the outlet end of the core, if the crude oil flow rate measured by the flow meter is consistent with the crude oil flow rate measured by the regulating valve, the flow rate of the crude oil is stable, then pressure signals at the two ends of the core are measured, and the pressure signals are sent to the control equipment 05, so that the control equipment can calculate the permeability of the core.
Optionally, the apparatus further comprises:
an air compressor 09, the air compressor 09 being used to inject air into the core.
Optionally, the apparatus further comprises:
an air adjusting valve 10, one end of the air adjusting valve 10 is connected with the air compressor 09, and the air adjusting valve 10 is used for controlling the flow rate of the air and sending the flow rate of the air to the control device 06.
It should be noted that the process of measuring the core permeability by using air is similar to the process of measuring the core permeability by using fluid, and the details are not repeated herein.
Optionally, the apparatus further comprises:
the sampler 11, the sampler 11 and the other end of the flow meter 08 are connected for recovering a fluid sample.
Optionally, the apparatus further comprises:
a regulating valve 12 (not shown in the figure) is located intermediate the sampler 11 and the flow meter 08, the regulating valve 12 being used to control the flow of the fluid sample.
Optionally, the apparatus further comprises:
and a pressure sensor 13 (not shown) connected to the other end of the air regulating valve for detecting a pressure signal of the injected core and transmitting the pressure signal to the control device 06.
It is worth mentioning that the control device 06 may also be used to control the pressure value of the pressure sensor 13 such that the air compressor 09 injects air into the core.
Optionally, the apparatus further comprises:
a pressure sensor 14 (not shown) is located between the flow pump 03 and the at least two regulating valves 02.
It is worth mentioning that the control device 06 may also be used to control the pressure value of the pressure sensor 14 to cause the flow pump 03 to inject fluid into the core.
Optionally, the apparatus further comprises:
and the core holder 15 is used for holding a core.
It is worth mentioning that the control device 06 may also display the calculated rock permeability. Wherein, controlgear 06 can server, terminal equipment, the utility model discloses do not limit to this.
The utility model provides a permeability testing arrangement still includes: the measuring device is used for measuring core parameters and fluid viscosity and sending the core parameters and the fluid viscosity to the control equipment, wherein the core parameters comprise the length and the sectional area of a core; the flow meter is connected with one end of the second pressure sensor; the air compressor is used for injecting air into the core; the air regulating valve is connected with the air compressor at one end and used for controlling the flow of air and sending the flow of the air to the control equipment; the sampler is connected with the other end of the flowmeter; a regulating valve located intermediate said sampler and said flow meter; the pressure sensor is connected with the other end of the air regulating valve; a pressure sensor located intermediate the flow pump and the at least two regulator valves; and the core holder is used for holding the core. Therefore, the permeability test of the rock is carried out without independently accessing the fluid, the flow of the fluid is controlled by controlling the regulating valve, and the automatic control is realized by the control equipment, so that the permeability of the rock is tested.
Fig. 3 is a schematic structural diagram of a control device according to an embodiment of the present invention. As shown in fig. 3, the control apparatus includes:
a processor;
a memory; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to calculate rock permeability.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A permeability testing device, comprising:
the core control system comprises at least two intermediate containers, at least two regulating valves, a flow pump, a first pressure sensor, a second pressure sensor and control equipment, wherein the first pressure sensor and the second pressure sensor are positioned at two ends of a core;
the at least two intermediate containers are connected with one ends of the at least two regulating valves, each intermediate container corresponds to one regulating valve, the other ends of the at least two regulating valves are connected with one end of the flow pump, the other end of the flow pump is connected with one end of the rock core, the at least two regulating valves are connected with the control equipment, and the first pressure sensor and the second pressure sensor are respectively connected with the control equipment;
the core permeability measuring device comprises at least two middle containers, at least two regulating valves, a control device and a control device, wherein the at least two middle containers are used for storing different types of fluids, the at least two regulating valves are used for controlling the flow of the fluids and sending the flow of the fluids to the control device, the flow pump is used for injecting the fluids into the core, the first pressure sensor and the second pressure sensor are used for detecting pressure signals at two ends of the core and sending the pressure signals to the control device, and the control device is used for receiving the flow of the fluids and the pressure signals and obtaining the permeability of the core according to the flow of the fluids and the pressure signals.
2. The apparatus of claim 1, further comprising:
the measuring device is used for measuring core parameters and fluid viscosity and sending the core parameters and the fluid viscosity to the control equipment, wherein the core parameters comprise the length and the sectional area of the core.
3. The apparatus of claim 1, further comprising:
and one end of the flow meter is connected with the second pressure sensor.
4. The apparatus of claim 3, further comprising:
an air compressor for injecting air into the core.
5. The apparatus of claim 4, further comprising:
and one end of the air regulating valve is connected with the air compressor, and the air regulating valve is used for controlling the flow of air and sending the flow of the air to the control equipment.
6. The apparatus of claim 5, further comprising:
and the sampler is connected with the other end of the flowmeter.
7. The apparatus of claim 6, further comprising:
a regulating valve located intermediate the sampler and the flow meter.
8. The apparatus of claim 7, further comprising:
and the pressure sensor is connected with the other end of the air regulating valve.
9. The apparatus of claim 1, further comprising:
a pressure sensor located intermediate the flow pump and the at least two regulator valves.
10. The apparatus of claim 1, further comprising:
the core holder is used for holding the core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921285458.0U CN211453271U (en) | 2019-08-08 | 2019-08-08 | Permeability testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921285458.0U CN211453271U (en) | 2019-08-08 | 2019-08-08 | Permeability testing device |
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| CN211453271U true CN211453271U (en) | 2020-09-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916748A (en) * | 2021-10-29 | 2022-01-11 | 东北石油大学 | Device and method for measuring permeability and recovery rate of shale matrix by using light oil |
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2019
- 2019-08-08 CN CN201921285458.0U patent/CN211453271U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916748A (en) * | 2021-10-29 | 2022-01-11 | 东北石油大学 | Device and method for measuring permeability and recovery rate of shale matrix by using light oil |
| CN113916748B (en) * | 2021-10-29 | 2024-02-02 | 东北石油大学 | Device and method for measuring shale matrix permeability and recovery ratio by light oil |
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