CN110044790B - Device and method for measuring critical filling pressure - Google Patents
Device and method for measuring critical filling pressure Download PDFInfo
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- CN110044790B CN110044790B CN201910285310.5A CN201910285310A CN110044790B CN 110044790 B CN110044790 B CN 110044790B CN 201910285310 A CN201910285310 A CN 201910285310A CN 110044790 B CN110044790 B CN 110044790B
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- pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
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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
Abstract
The invention provides a device and a method for measuring critical filling pressure, wherein the measuring device comprises: the device comprises a trace advection pump, an intermediate container, a pressure sensor, a monitoring module and a rock core holder; wherein: the core holder is used for holding an impermeable object for calibration and a core to be measured; the micro advection pump is connected with one end of the intermediate container through a first pipeline and is used for injecting the first liquid into the intermediate container at a preset flow rate; the other end of the middle container is connected with the core holder through a second pipeline and used for injecting second liquid into the core holder, and the pressure sensor is connected to the second pipeline between the middle container and the core holder; the monitoring module is electrically connected with the pressure sensor and is used for monitoring the pressure change relationship of the pressure sensor with time when the impermeable object and the core to be detected are clamped in the core holder in real time respectively. The method can be used for quickly and accurately measuring the critical filling pressure of the rock core, and the error of the measurement result is small compared with the actual value.
Description
Technical Field
The invention relates to the field of petroleum exploration, in particular to a core parameter measuring technology, and specifically relates to a device and a method for measuring critical filling pressure.
Background
The proportion of dense and low-permeability oil and gas reservoirs in oil and gas resources in China is increased year by year, the critical filling pressure is a key parameter in the research of the oil and gas reservoir formation, but the critical filling pressure cannot be accurately measured in the prior art. In order to measure the critical filling pressure, the prior art proposes a method for measuring the near filling pressure by using an RLC bridge, and the basic principle of the method is that when oil is injected into a core saturated with water, the resistivity of the core is increased, so that the RLC bridge is used for measuring the resistivity of the core to detect the injection pressure when the oil starts to enter the core, and the pressure is the critical filling pressure. However, when oil begins to enter the core, the resistivity of the core is slightly changed, and the relation between the content and distribution of the oil and the resistivity of the core has multiple solutions, so that the method has low sensitivity and large error.
Disclosure of Invention
The embodiment of the invention provides a device and a method for measuring the critical filling pressure, which can solve the problems of low sensitivity and large error of the existing measurement technology.
In one aspect, an embodiment of the present invention provides a device for measuring a critical filling pressure, including: the device comprises a trace advection pump, an intermediate container, a pressure sensor, a monitoring module and a rock core holder; wherein:
the core holder is used for holding an impermeable object for calibration and a core to be measured;
the micro advection pump is connected with one end of the intermediate container through a first pipeline and is used for injecting first liquid into the intermediate container at a preset flow rate;
the other end of the middle container is connected with the core holder through a second pipeline and used for injecting a second liquid into the core holder, and the pressure sensor is connected to the second pipeline between the middle container and the core holder;
the monitoring module is electrically connected with the pressure sensor and is used for monitoring the pressure change relationship of the pressure sensor along with time when the impermeable object and the core to be detected are clamped in the core holder in real time respectively.
In one embodiment, the intermediate container is arranged in a vertical direction, wherein the lower end is connected with the micro advection pump, and the upper end is communicated with the core holder.
In one embodiment, the first liquid density is greater than the second liquid density.
In one embodiment, the apparatus for measuring the critical filling pressure further comprises a container connected to the second conduit between the intermediate container and the core holder via a third conduit for containing the second liquid.
In one embodiment, the device for measuring the critical filling pressure further comprises a vacuum pump, and the vacuum pump is connected with the third pipeline through a fourth pipeline.
In one embodiment, the apparatus for measuring the critical filling pressure comprises:
a valve is arranged on the second pipeline;
a valve is arranged on the third pipeline;
and a valve is arranged on the fourth pipeline.
In one embodiment, the device for measuring the critical filling pressure further comprises an annular pressure pump, and the annular pressure pump is connected with the core holder through a fifth pipeline.
In an embodiment, the measuring device of the critical filling pressure further includes a pressure gauge, and the measuring device further includes a pressure gauge disposed on the fifth pipeline.
In another aspect, an embodiment of the present invention provides a method for measuring a critical filling pressure, including:
loading the impermeable object into the core holder;
after confining pressure is applied to the rock core holder to a preset value, the micro constant-flow pump is started, and the intermediate container is filled at a set flow rate until preset time;
the monitoring module records a pressure variation relation curve of the pressure sensor along with time as a calibration curve;
loading the core to be detected into the core holder;
after confining pressure is applied to the rock core holder to the preset value, the micro advection pump is started, and the intermediate container is filled at the set flow rate until the preset time;
the monitoring module records the change relation of the pressure sensor along with time as a measuring curve;
and comparing the calibration curve with the measurement curve to obtain the critical filling pressure.
In one embodiment, before loading the impermeable object into the core holder and loading the core to be tested into the core holder, the method further comprises:
and starting a vacuum pump, and vacuumizing the intermediate container and a second pipeline and a third pipeline connected with the intermediate container to enable second liquid in the beaker to enter the intermediate container and the second pipeline and the third pipeline connected with the intermediate container.
In one embodiment, the monitoring module records a pressure of the pressure sensor over time, including:
the monitoring module records a pressure variation relation curve of the pressure sensor along with time at preset sampling time intervals.
From the above description, the present invention provides a device and a method for measuring a critical filling pressure, which can solve the problems of low sensitivity and large error in the existing measurement technology.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a device for measuring a critical filling pressure in an embodiment of the present invention.
Fig. 2 is a schematic flow chart of a method for measuring the critical filling pressure provided in an embodiment of the present invention.
Fig. 3 is a comparison diagram of a calibration curve and a measurement curve provided in the embodiment of the present invention.
Fig. 4 is a partially enlarged schematic view of fig. 3.
Fig. 5 is a schematic flow chart of an embodiment of the method for measuring the critical filling pressure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a specific implementation manner of a device for measuring a critical charging pressure, and referring to fig. 1, the device for measuring a critical charging pressure specifically includes the following contents:
the measuring device includes: micro advection pump 1, middle container 4, pressure sensor 11, monitoring module 12, rock core holder 13, wherein:
the core holder 13 is used for holding a non-permeable object for calibration and a core to be measured;
in one particular example, the impermeable object may be selected from stainless steel in the shape of a cylinder.
The micro advection pump 1 is connected with one end of the intermediate container 4 through a first pipeline 16 and is used for injecting a first liquid 21 into the intermediate container 4 at a preset flow rate;
in one specific example, the predetermined flow rate may be 0.02 ml/min; the first liquid 21 may be water or other non-compressible liquid.
The other end of the intermediate container 4 is connected with the core holder 13 through a second pipeline 17 and is used for injecting a second liquid 22 into the core holder 13, and the pressure sensor 11 is connected to the second pipeline 17 between the intermediate container 4 and the core holder 13;
in a particular example, the intermediate container 4 is oriented:
the direction of the part of the middle container 4 connected with the micro advection pump 1 is downward, and the direction of the part of the middle container 4 communicated with the core holder 13 is upward.
In one particular example, the second liquid 22 may be kerosene or other oil-type liquids.
The monitoring module 12 is electrically connected to the pressure sensor 11 and is configured to monitor a time-varying relationship of the pressure sensor 11 when the core holder 13 holds an impermeable object and a core to be measured, respectively.
In a specific example, the volume of the intermediate container 4 may be 200 ml.
The measuring device further comprises a container 6, which container 6 is connected to the second conduit 17 between the intermediate container 4 and the core holder 13 via a third conduit 18 for containing the second liquid 22.
In a particular example, the container 6 may be a beaker, for example a 10X 10cm long 25cm beaker, having a wall thickness of 5mm and containing kerosene which may have a density of 0.896 g/cc.
The measuring device further comprises a vacuum pump 7, the vacuum pump 7 being connected to the third conduit 18 via a fourth conduit 19.
The second pipeline 17 is provided with a valve 9;
the third pipeline 18 is provided with a valve 5;
the fourth pipeline 19 is provided with a valve 8.
The measuring device further comprises an annular pressure pump 15, and the annular pressure pump 15 is connected with the core holder 13 through a fifth pipeline 20.
The measuring device further comprises a pressure gauge 14, and the pressure gauge 14 is arranged on the fifth pipeline 20.
From the above description, the invention provides a device for measuring the critical filling pressure, which can solve the problems of low sensitivity and large error of the existing measurement technology.
An embodiment of the present invention provides a specific implementation of a method for measuring a critical filling pressure, and referring to fig. 2, the method for measuring the critical filling pressure specifically includes the following steps:
step 100: loading the impermeable object into the core holder;
it will be appreciated that before the start of the operation of measuring the critical filling pressure, the tightness of the measuring device should be checked, in particular: opening a micro advection pump, loading a stainless steel cylinder into the rock core holder, opening a monitoring module and a pressure sensor, pressurizing a measuring device to a preset value, closing the micro advection pump, and checking whether the pressure is attenuated or not through the pressure sensor and the monitoring module; in a specific example, the preset value may be 10 MPa.
Step 200: after confining pressure is applied to the rock core holder to a preset value, the micro constant-flow pump is started, and the intermediate container is filled at a set flow rate until preset time;
it can be understood that, when confining pressure is applied to the core holder in order to simulate an underground pressure environment, the preset value should be consistent according to the pressure of the layer where the core to be measured is located, and in a specific example, may be 25 MPa. The preset time should be not less than 6400 s.
Step 300: the monitoring module records a pressure change relation curve of the pressure sensor along with time as a calibration curve;
step 400: loading the core to be detected into the core holder;
it is understood that, before step 100 and step 400, the method further includes:
and starting a vacuum pump, and vacuumizing the intermediate container and a second pipeline and a third pipeline connected with the intermediate container to ensure that the second liquid in the container enters the intermediate container and the second pipeline and the third pipeline connected with the intermediate container.
According to the number of the cores to be measured, the cores to be measured can be sequentially loaded into the core holder so as to measure a plurality of cores to be measured.
Step 500: after confining pressure is applied to the rock core holder to the preset value, the micro advection pump is started, and the intermediate container is filled at the set flow rate until the preset time;
step 600: the monitoring module records the change relation of the pressure sensor along with time as a measuring curve;
it will be appreciated that the monitoring module records the pressure of the pressure sensor over time at predetermined sampling intervals, which may be 5s in one specific example.
Step 700: and comparing the calibration curve with the measurement curve to obtain the critical filling pressure.
As can be seen from the above description, the embodiments of the present invention provide a method for measuring the critical filling pressure, which can solve the problems of low sensitivity and large error in the existing measurement technology.
To further illustrate the present solution, the present invention also provides a specific application example of the method for measuring the critical filling pressure, and refer to fig. 3, fig. 4 and fig. 5. Specific application examples of the method for measuring the critical filling pressure specifically include the following:
it is understood that each measurement data in the measurement method of the critical filling pressure is a data point in fig. 3 and 4, but is specifically shown as a line in the figure because there are a large number of data points in fig. 3.
S0: the method comprises the steps of starting the micro constant-current pump 1, loading a stainless steel cylinder into a core holder 13, starting the monitoring module 12 and the pressure sensor 11, pressurizing the measuring device to 10MPa, stopping the micro constant-current pump 1, checking whether the pressure is attenuated or not through the pressure sensor 11 and the monitoring module 12, starting the valve 10 after the checking is finished, and unloading the pressure of the measuring device.
S1: and (3) starting a vacuum pump 7, opening a valve 5 and a valve 8, closing a valve 10, vacuumizing the intermediate container 4 and a second pipeline 17 and a third pipeline 18 connected with the intermediate container 4, and enabling a second liquid 22 in a container 6 to enter the intermediate container 4 and the second pipeline 17 and the third pipeline 18 connected with the intermediate container 4.
S2: closing the valve 3, the valve 5 and the valve 8, opening the valve 2 and the valve 9, adding confining pressure to the rock core holder 13 to 25MPa, then opening the micro advection pump 1, and filling the intermediate container 4 at a flow rate of 0.02ml/min until 6400 s;
s3: the monitoring module 12 records a pressure change relation curve of the pressure sensor 11 along with time at a sampling time interval of 5s as a calibration curve, opens the valve 10 and unloads the pressure of the measuring device;
s4: and (3) starting a vacuum pump 7, opening a valve 5 and a valve 8, closing a valve 10, vacuumizing the intermediate container 4 and a second pipeline 17 and a third pipeline 18 connected with the intermediate container 4, and enabling a second liquid 22 in a container 6 to enter the intermediate container 4 and the second pipeline 17 and the third pipeline 18 connected with the intermediate container 4.
S5: loading the core 1 to be tested into the core holder 13, and closing the valve 10;
s6: after the confining pressure of the rock core holder 13 is increased to 25MPa, the micro advection pump 1 is started, and the intermediate container is filled at the flow rate of 0.02ml/min until 6400 s;
s7: the monitoring module 12 records the change relation of the pressure sensor 11 along with the time at a sampling time interval of 5s as a measuring curve;
s8: opening a valve 10, unloading the pressure of the measuring device, and loading the core 2 to be measured into the core holder 13;
s9: after the confining pressure of the rock core holder 13 is increased to 25MPa, the micro advection pump 1 is started, and the intermediate container is filled at the flow rate of 0.02ml/min until 6400 s;
s10: the monitoring module 12 records the change relation of the pressure sensor 11 along with the time at a sampling time interval of 5s as a measuring curve;
s11: and comparing the calibration curve and the measurement curve to obtain the critical filling pressures of the two cores, wherein the critical filling pressures of the core 1 and the core 2 are respectively 1.66MPa (see the point A in fig. 3) and 0.22MPa (see the point B in fig. 3 and 4).
From the above description, the present invention provides a device and a method for measuring a critical filling pressure, which can solve the problems of low sensitivity and large error in the existing measurement technology.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results.
Although embodiments of the present description provide method steps as described in embodiments or flowcharts, more or fewer steps may be included based on conventional or non-inventive means. The order of steps recited in the embodiments is merely one manner of performing the steps in a multitude of orders and does not represent the only order of execution. When an actual apparatus or end product executes, it may execute sequentially or in parallel (e.g., parallel processors or multi-threaded environments, or even distributed data processing environments) according to the method shown in the embodiment or the figures. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the presence of additional identical or equivalent elements in a process, method, article, or apparatus that comprises the recited elements is not excluded.
The above description is only an example of the embodiments of the present disclosure, and is not intended to limit the embodiments of the present disclosure. Various modifications and variations to the embodiments described herein will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present specification should be included in the scope of the claims of the embodiments of the present specification.
Claims (8)
1. A critical filling pressure measuring device, comprising: the device comprises a trace advection pump, an intermediate container, a pressure sensor, a monitoring module and a rock core holder; wherein:
the core holder is used for holding an impermeable object for calibration and a core to be measured;
the micro advection pump is connected with one end of the intermediate container through a first pipeline and is used for injecting first liquid into the intermediate container at a preset flow rate;
the other end of the middle container is connected with the core holder through a second pipeline and used for injecting a second liquid into the core holder, and the pressure sensor is connected to the second pipeline between the middle container and the core holder;
the monitoring module is electrically connected with the pressure sensor and is used for monitoring the pressure change relationship of the pressure sensor along with time when the impermeable object and the core to be detected are clamped in the core holder in real time respectively;
the middle container is arranged along the vertical direction, wherein the lower end of the middle container is connected with the micro advection pump, and the upper end of the middle container is communicated with the rock core holder;
the first liquid density is greater than the second liquid density;
the measuring device further comprises an annular pressure pump, and the annular pressure pump is connected with the core holder through a fifth pipeline.
2. A measuring device as claimed in claim 1, characterized in that the measuring device further comprises a container connected to the second conduit between the intermediate container and the core holder by a third conduit for containing the second liquid.
3. The measurement device of claim 2, further comprising a vacuum pump connected to the third conduit by a fourth conduit.
4. A measuring device according to claim 3,
a valve is arranged on the second pipeline;
a valve is arranged on the third pipeline;
and a valve is arranged on the fourth pipeline.
5. The measurement device according to claim 1, further comprising a pressure gauge disposed on the fifth conduit.
6. A method of measuring a critical filling pressure using the apparatus for measuring a critical filling pressure according to any one of claims 1 to 5, comprising:
loading the impermeable object into the core holder;
after confining pressure is applied to the rock core holder to a preset value, the micro constant-flow pump is started, and the intermediate container is filled at a set flow rate until preset time;
the monitoring module records a pressure variation relation curve of the pressure sensor along with time as a calibration curve;
loading the core to be detected into the core holder;
after confining pressure is applied to the rock core holder to the preset value, the micro advection pump is started, and the intermediate container is filled at the set flow rate until the preset time;
the monitoring module records the change relation of the pressure sensor along with time as a measuring curve;
and comparing the calibration curve with the measurement curve to obtain the critical filling pressure.
7. The method as recited in claim 6, further comprising, prior to loading the impermeable object into the core holder and loading the core under test into the core holder:
and starting a vacuum pump, and vacuumizing the intermediate container and a second pipeline and a third pipeline connected with the intermediate container to ensure that the second liquid in the container enters the intermediate container and the second pipeline and the third pipeline connected with the intermediate container.
8. The method of claim 6, wherein the monitoring module records a pressure versus time profile of the pressure sensor, comprising: the monitoring module records a pressure variation relation curve of the pressure sensor along with time at preset sampling time intervals.
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| CN201910285310.5A CN110044790B (en) | 2019-04-10 | 2019-04-10 | Device and method for measuring critical filling pressure |
| AU2020202464A AU2020202464B2 (en) | 2019-04-10 | 2020-04-09 | Apparatus and method for measuring critical filling pressure |
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| CN201910285310.5A CN110044790B (en) | 2019-04-10 | 2019-04-10 | Device and method for measuring critical filling pressure |
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| CN110044790B true CN110044790B (en) | 2020-06-19 |
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| CN110044789B (en) * | 2019-04-10 | 2021-09-24 | 东北石油大学 | Device and method for measuring minimum starting pressure and pressure wave propagation rate |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053253A (en) * | 2009-10-30 | 2011-05-11 | 中国石油化工股份有限公司 | Rock sample detection and data acquisition system and method and application thereof |
| CN203658217U (en) * | 2014-01-06 | 2014-06-18 | 西南石油大学 | Seepage starting pressure gradient test device |
| WO2015034463A1 (en) * | 2013-09-03 | 2015-03-12 | Halliburton Energy Services, Inc. | Methods and systems for evaluation of rock permeability, porosity, and fluid composition |
| CN204461880U (en) * | 2015-01-04 | 2015-07-08 | 中国石油天然气股份有限公司 | Core breakthrough pressure proving installation |
| CN205135616U (en) * | 2015-09-08 | 2016-04-06 | 中国石油大学(北京) | Evaluation open hole completion oil well shakes out critical pressure less than experimental apparatus |
| CN106324212A (en) * | 2015-06-19 | 2017-01-11 | 中国石油化工股份有限公司 | Quick testing device and method of rock core gas start pressure |
| CN109269901A (en) * | 2018-09-18 | 2019-01-25 | 中国石油大学(华东) | A kind of multiple dimensioned horizontal joint comprehensive regulation imitative experimental appliance of pressure-sensitive and method |
| CN109557010A (en) * | 2018-11-07 | 2019-04-02 | 北京科技大学 | A kind of experimental method measuring pressure gradient |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6604625B2 (en) * | 2015-07-29 | 2019-11-13 | 大成建設株式会社 | Flow measuring device |
| US10401274B2 (en) * | 2015-12-14 | 2019-09-03 | Saudi Arabian Oil Company | Methods and systems for determining gas permeability of a subsurface formation |
| US10845292B2 (en) * | 2017-06-19 | 2020-11-24 | Saudi Arabian Oil Company | Method for correcting low permeability laboratory measurements for leaks |
-
2019
- 2019-04-10 CN CN201910285310.5A patent/CN110044790B/en active Active
-
2020
- 2020-04-09 AU AU2020202464A patent/AU2020202464B2/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053253A (en) * | 2009-10-30 | 2011-05-11 | 中国石油化工股份有限公司 | Rock sample detection and data acquisition system and method and application thereof |
| WO2015034463A1 (en) * | 2013-09-03 | 2015-03-12 | Halliburton Energy Services, Inc. | Methods and systems for evaluation of rock permeability, porosity, and fluid composition |
| CN203658217U (en) * | 2014-01-06 | 2014-06-18 | 西南石油大学 | Seepage starting pressure gradient test device |
| CN204461880U (en) * | 2015-01-04 | 2015-07-08 | 中国石油天然气股份有限公司 | Core breakthrough pressure proving installation |
| CN106324212A (en) * | 2015-06-19 | 2017-01-11 | 中国石油化工股份有限公司 | Quick testing device and method of rock core gas start pressure |
| CN205135616U (en) * | 2015-09-08 | 2016-04-06 | 中国石油大学(北京) | Evaluation open hole completion oil well shakes out critical pressure less than experimental apparatus |
| CN109269901A (en) * | 2018-09-18 | 2019-01-25 | 中国石油大学(华东) | A kind of multiple dimensioned horizontal joint comprehensive regulation imitative experimental appliance of pressure-sensitive and method |
| CN109557010A (en) * | 2018-11-07 | 2019-04-02 | 北京科技大学 | A kind of experimental method measuring pressure gradient |
Non-Patent Citations (2)
| Title |
|---|
| 基于核磁共振技术的致密砂岩气运移特征研究;房涛等;《甘肃科学学报》;20170831;第29卷(第4期);第22-27页 * |
| 致密储集层原油充注物理模拟——以准噶尔盆地吉木萨尔凹陷二叠系芦草沟组为例;郑民等;《石油勘探与开发》;20160430;第43卷(第2期);第219-227页 * |
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| AU2020202464A1 (en) | 2020-10-29 |
| CN110044790A (en) | 2019-07-23 |
| AU2020202464B2 (en) | 2021-03-11 |
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