CN205483895U - Rock core imbibition experimental apparatus - Google Patents
Rock core imbibition experimental apparatus Download PDFInfo
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- CN205483895U CN205483895U CN201620204083.0U CN201620204083U CN205483895U CN 205483895 U CN205483895 U CN 205483895U CN 201620204083 U CN201620204083 U CN 201620204083U CN 205483895 U CN205483895 U CN 205483895U
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- imbibition
- rock core
- thermostat
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Abstract
The utility model provides a rock core imbibition experimental apparatus, include: constant temperature equipment, constant voltage equipment, electronic balance, imbibition cup, imbibition liquid pipe and rock core gallows, placed in the constant temperature equipment and be equipped with imbibition liquid the imbibition cup to keep predetermined temperature in the messenger constant temperature equipment, constant voltage equipment is through passing constant temperature equipment imbibition liquid pipe with the imbibition cup is connected, so that in the imbibition cup the level of imbibition liquid remains stationary, electronic balance place in on constant temperature equipment's the top surface, electronic balance is through passing constant temperature equipment the rock core gallows is connected with the rock core, is used for weighing the mass parameter of rock core, wherein, rock core suspension and submergence in in the imbibition liquid for the mass parameter of the gained rock core of rock core imbibition experimental apparatus obtains under the condition of constant temperature and constant voltage, improves and tests the accuracy.
Description
Technical field
This utility model relates to technical field of petrochemical industry, particularly relates to a kind of rock core imbibition experiment dress
Put.
Background technology
In compact oil reservoir and low-permeability oil deposit displacement or the research handled up etc., by utilize rock core hole with
Imbibition between substrate and substrate and crack thus obtain the imbibition effect of rock core, become important research class
Topic.
In the prior art, often utilize high-precision indoor experimental apparatus to the rock under different experimental conditions
The imbibition yield of the heart carries out quantitative, qualitative.In existing imbibition experiment, mainly utilize mass method to imbibition
Effect is tested: its experimental provision is based on balance, counterweight, beaker, by utilizing lever principle
Weighing is immersed in the core quality in imbibition liquid thus calculates imbibition rate.Its experimental provision is owing to using sky
Flat lever is experiment basis, and error is the biggest；The more important thing is, due to experimental provision it cannot be guaranteed that measurement ring
The stationarity in border so that measuring environment and change, such as variations in temperature and imbibition liquid volatilization etc., cause
There is change in experiment condition, has a strong impact on the accuracy of experiment.
Therefore, in existing rock core imbibition is tested, it is badly in need of one and can ensure that experiment condition and experimental situation
Stablize, enable experiment not by ectocine thus obtain the experimental provision of experimental result accurately.
Utility model content
This utility model provides a kind of rock core imbibition experimental provision, uses above-mentioned existing rock core in order to solving
During imbibition experimental provision, it is impossible to ensure the fixing of experiment condition and the inaccurate problem of experimental result that causes.
On the one hand, this utility model provides a kind of rock core imbibition experimental provision, including: thermostat, permanent
Pressure device, electronic balance, imbibition cup, imbibition fluid catheter and rock core suspension bracket；
Wherein, in described thermostat, it is placed with the described imbibition cup equipped with imbibition liquid, so that thermostat
The temperature that interior holding is preset；
Described constant voltage equipment is by the described imbibition fluid catheter through described thermostat with described imbibition cup even
Connect, so that the level height of the described imbibition liquid in described imbibition cup keeps fixing；
Described electronic balance is positioned on the end face of described thermostat, and described electronic balance is by through institute
The described rock core suspension bracket stating thermostat is connected with rock core, for weighing the mass parameter of described rock core；Its
In, described rock core suspends and is immersed in described imbibition liquid.
Further, also include: data collecting system；
Described electronic balance is connected with described data collecting system, so that described data collecting system obtains institute
State mass parameter.
Further, also include: leveling device；
The end face of described leveling device contacts with the bottom surface of described thermostat, is used for adjusting described perseverance
Temperature plane residing for device, so that being positioned at the described electronic balance holding level of the top side of described thermostat.
Further, bowl cover is also included；
The top of described imbibition cup is additionally provided with dismountable described bowl cover, being provided centrally with of described bowl cover
One through hole, for making described rock core suspension bracket be connected through described through hole with the described rock core in described imbibition cup.
Further, it is additionally provided with the first valve in the junction of described imbibition cup and described imbibition fluid catheter,
For controlling conducting and the Guan Bi of described imbibition fluid catheter.
Further, described constant voltage equipment is additionally provided with the second valve with the junction of described imbibition fluid catheter,
For avoiding described imbibition liquid to flow backward in described constant voltage equipment.
Further, also include: temperature sensor；
Described temperature sensor is arranged in described thermostat, is connected with described data collecting system, uses
Temperature parameter in measuring described thermostat, so that described data collecting system obtains described temperature ginseng
Number.
Further, described constant voltage equipment is connected with described data collecting system, so that described data acquisition
System obtains the pressure parameter in current described constant voltage equipment.
The rock core imbibition experimental provision that this utility model provides, including: thermostat, constant voltage equipment, electricity
Sub-balance, imbibition cup, imbibition fluid catheter and rock core suspension bracket；Wherein, it is placed with dress in described thermostat
There is the described imbibition cup of imbibition liquid, so that keeping the temperature preset in thermostat；Described constant voltage equipment leads to
Cross the described imbibition fluid catheter through described thermostat to be connected with described imbibition cup, so that described imbibition cup
The level height of interior described imbibition liquid keeps fixing；Described electronic balance is positioned over described thermostat
On end face, described electronic balance is connected with rock core by the described rock core suspension bracket through described thermostat,
For weighing the mass parameter of described rock core；Wherein, described rock core suspends and is immersed in described imbibition liquid.
By above-mentioned setting so that the mass parameter of the rock core that rock core imbibition experimental provision is obtained be at constant temperature and
Obtain in the case of constant voltage, eliminate the reality that the experiment condition such as variations in temperature and imbibition liquid volatilization is caused
Test the error of result, be conducive to obtaining the imbibition rate of rock core oil reservoir accurately, enable research worker more preferable
The imbibition effect of ground research rock core oil reservoir.
Accompanying drawing explanation
The structural representation of a kind of rock core imbibition experimental provision that Fig. 1 provides for this utility model embodiment one
Figure；
The structural representation of another rock core imbibition experimental provision that Fig. 2 provides for this utility model embodiment one
Figure；
The structural representation of a kind of rock core imbibition experimental provision that Fig. 3 provides for this utility model embodiment two
Figure；
The structural representation of a kind of rock core imbibition experimental provision that Fig. 4 provides for this utility model embodiment three
Figure.
Reference:
1-thermostat；2-constant voltage equipment；3-electronic balance；
4-imbibition cup；5-imbibition fluid catheter；6-rock core suspension bracket；
7-rock core；8-data collecting system；9-bowl cover；
10-through hole；11-temperature sensor.
Detailed description of the invention
For making the purpose of each embodiment of this utility model, technical scheme and advantage clearer, below will knot
Closing the accompanying drawing in each embodiment of this utility model, the technical scheme in embodiment each to this utility model is carried out
Clearly and completely describe.For convenience of explanation, the size in zoomed in or out different layers and region,
So size shown in figure and ratio might not represent actual size, the most do not reflect that the ratio of size is closed
System.
The structural representation of a kind of rock core imbibition experimental provision that Fig. 1 provides for this utility model embodiment one
Figure, as it is shown in figure 1, this rock core imbibition experimental provision includes: thermostat 1, constant voltage equipment 2, electronics
Balance 3, imbibition cup 4, imbibition fluid catheter 5 and rock core suspension bracket 6；
The imbibition cup 4 equipped with imbibition liquid it is placed with, so that keeping pre-in thermostat 1 in thermostat 1
If temperature.
Wherein, imbibition liquid concretely saline, oil or the liquid such as distilled water, in order to imbibition liquid enters with rock core
Row liquid displacement, i.e. ensures that imbibition liquid composition is different from the fluid composition in rock core, and the application is to this
Do not limit.Thermostat 1 concretely small-sized thermostat, or be temperature-adjustable and holding temperature
Any one constant thermostat, more preferably, the sidewall of thermostat 1 is also provided with observe
Window, in order to research worker observation experiment is in progress.
Constant voltage equipment 2 is connected with imbibition cup 4 by the imbibition fluid catheter 5 through thermostat 1, so that
The level height of the imbibition liquid in imbibition cup 4 keeps fixing.
Concrete, constant voltage equipment 2 is by the imbibition fluid catheter 5 through thermostat 1 with imbibition cup 4 even
Connect, so that when volatilization occurs in the imbibition liquid in imbibition cup 4, and imbibition fluid catheter 5 and imbibition cup 4 occur
When the pressure of junction declines, constant voltage equipment 2 supplements imbibition by imbibition fluid catheter 5 in imbibition cup 4
Liquid, thus ensure that the level height of the imbibition liquid in imbibition cup 4 is fixed, make experiment condition tend towards stability and carry
The accuracy of high experimental result.
Electronic balance 3 is positioned on the end face of thermostat 1, and electronic balance 3 is by through thermostat
The rock core suspension bracket 6 of 1 is connected with rock core 7, for weighing the mass parameter of rock core 7；Wherein, rock core 7
Suspend and be immersed in imbibition liquid.
Concrete, the top of rock core suspension bracket 6 is connected with the object stage of electronic balance 3, rock core suspension bracket 6
Bottom is connected with rock core 7, and ensures that rock core 7 suspends and is immersed in the imbibition liquid in imbibition cup 4, with
Ensure that all surfaces of rock core 7 can carry out liquid displacement with imbibition liquid.And electronic balance 3 passes through rock core
The mass parameter of rock core 7 can be weighed by suspension bracket 6, and its minimum measurement unit can be accurate to 0.0001 gram.
Further, another rock core imbibition experimental provision that Fig. 2 provides for this utility model embodiment one
Structural representation, on the basis of Fig. 1, as in figure 2 it is shown, this device also includes: data acquisition system
System 8；Wherein, electronic balance 3 is connected with data collecting system 8, so that data collecting system 8 obtains
The mass parameter of rock core, so that research worker directly can obtain this quality from data collecting system 8
Parameter, simplifies operation.
Further, the using and ensure experiment safety, upper of this rock core imbibition experimental provision for convenience
On the basis of stating Fig. 1 or Fig. 2 embodiment, also set in the junction of imbibition cup 4 and imbibition fluid catheter 5
Being equipped with the first valve, this first valve is for controlling conducting and the Guan Bi of imbibition fluid catheter 5, thus controls
Experiment process, meanwhile, it also avoid contingent, leads owing to constant voltage equipment 2 sets hypertonia
The liquid level of the imbibition liquid caused is too high so that imbibition hydrorrhea goes out the situation of imbibition cup 4, it is ensured that experiment
Safety.
Further, in order to improve the accuracy of experiment, on the basis of any of the above-described embodiment, permanent
Pressure device 2 is additionally provided with the second valve with the junction of imbibition fluid catheter 5, and this second valve is used for avoiding
Imbibition liquid flows backward in constant voltage equipment 2.Concrete, this second valve check valve again forms so that imbibition
Imbibition liquid in fluid catheter 5 will not flow backward to constant voltage equipment 2, it is to avoid imbibition liquid after imbibition flow backwards and
Cause the error measured.
The rock core imbibition experimental provision that this utility model embodiment one provides, including: thermostat 1, permanent
Pressure device 2, electronic balance 3, imbibition cup 4, imbibition fluid catheter 5 and rock core suspension bracket 6；Thermostat 1
Inside it is placed with the imbibition cup 4 equipped with imbibition liquid, so that keeping the temperature preset in thermostat 1；Constant voltage
Device 2 is connected with imbibition cup 4 by the imbibition fluid catheter 5 through thermostat 1, so that imbibition cup 4
The level height of interior imbibition liquid keeps fixing；Electronic balance 3 is positioned on the end face of thermostat 1,
Electronic balance 3 is connected with rock core 7 by the rock core suspension bracket 6 through thermostat 1, is used for weighing rock core
The mass parameter of 7；Wherein, rock core 7 suspends and is immersed in imbibition liquid.By above-mentioned setting so that
The mass parameter of the rock core that rock core imbibition experimental provision is obtained is to obtain in the case of constant temperature and constant voltage
, eliminate the error of the experimental result that the experiment condition such as variations in temperature and imbibition liquid volatilization is caused, have
It is beneficial to obtain the imbibition rate of rock core oil reservoir accurately, enables research worker preferably to study rock core oil reservoir
Imbibition effect.
Further, the embodiment of the present application two provides a kind of rock core imbibition experimental provision, in order to make electronics
Mass parameter measured by balance 3 is more accurate, on the basis of any of the above-described embodiment, and this rock core
Imbibition experimental provision may also include that leveling device.
The end face of leveling device contacts with the bottom surface of thermostat 1, is used for adjusting described thermostat
Plane residing for 1, so that being positioned at the electronic balance 3 holding level of the top side of thermostat 1.
Concrete, this leveling device can be existing any one manual horizontal regulating structure or automatic water
The whole structure of Heibei provincial opera forms, to realize making to be positioned at the electronic balance 3 holding level of the top side of thermostat 1
Function, its concrete structure is not defined by the application.By arranging leveling device so that
Mass parameter measured by electronic balance 3 is more accurate, improves the accuracy of experiment.
Preferably, leveling device concretely horizontal adjustment castor, so that at regulation electronic balance 3
On the basis of holding level, moreover it is possible to whole attemperator 1 is moved, improve rock core imbibition experiment dress
The motility put and operability.
Further, a kind of rock core imbibition experimental provision that Fig. 3 provides for this utility model embodiment two
Structural representation, the error brought to make reduction imbibition liquid volatilize, make experimental result more accurate,
On the basis of any of the above-described embodiment, this rock core imbibition experimental provision may also include that bowl cover 9.
The top of imbibition cup 4 is additionally provided with dismountable bowl cover 9, bowl cover 9 be provided centrally with a through hole
10, for making rock core suspension bracket 6 be connected through through hole 10 with the rock core 7 in imbibition cup 4.By bowl cover 9
Setting, reduce the volatilization of imbibition liquid, improve the accuracy of experiment.
The rock core imbibition experimental provision that this utility model embodiment two provides, is provided by end face and constant temperature
The Heibei provincial opera engagement positions of the bottom surface contact of device 1, to adjust the plane residing for thermostat 1, makes to be positioned at perseverance
The electronic balance 3 of the top side of temperature device 1 keeps level so that the mass parameter measured by electronic balance 3
More accurate, improve the accuracy of experiment；Top at imbibition cup 4 is provided with dismountable cup
Lid 9, and be provided centrally with a through hole 10 at bowl cover 9, be used for making rock core suspension bracket 6 through through hole 10 with
Rock core 7 in imbibition cup 4 connects, thus reduces the volatilization of imbibition liquid, improves the standard of experiment further
Really property.
Further, in order to make the measurement parameter of experiment in further detail, experimental result is more accurate, this reality
A kind of rock core imbibition experimental provision is provided by new embodiment three, in above-mentioned Fig. 2 illustrated embodiment,
This rock core imbibition experimental provision also includes: temperature sensor 11.
Temperature sensor 11 is arranged in thermostat 1, is connected with data collecting system 8, is used for measuring
Temperature parameter in thermostat 1, so that data collecting system 8 obtains this temperature parameter.
Concrete, by arranging the temperature sensor 11 being connected with data collecting system 8 so that data acquisition
Collecting system 8 is while obtaining the mass parameter of rock core 7, moreover it is possible to obtain the corresponding temperature of this mass parameter
The calculating of parameter, beneficially experimental result, improves the accuracy of experiment.
Further, in order to make the measurement parameter of experiment in further detail, experimental result is more accurate, Fig. 4
The structural representation of a kind of rock core imbibition experimental provision provided for this utility model embodiment three, above-mentioned
On the basis of Fig. 2 and embodiment three illustrated embodiment, constant voltage equipment 2 is with data collecting system 8 even
Connect, so that data collecting system 8 obtains the pressure parameter in current constant voltage equipment 2.So that total
According to acquisition system 8 while the mass parameter obtaining rock core 7 and temperature parameter, moreover it is possible to obtain corresponding
The calculating of pressure parameter, beneficially experimental result, improves the accuracy of experiment.
The rock core imbibition experimental provision that present embodiment embodiment three provides, by arranging temperature sensor
11 are arranged in thermostat 1, are connected with data collecting system 8, for measuring in thermostat 1
Temperature parameter, so that data collecting system 8 obtains this temperature parameter；Also by by constant voltage equipment 2 and number
Connect according to acquisition system 8, so that data collecting system 8 obtains the pressure ginseng in current constant voltage equipment 2
Number so that data collecting system 8 obtain rock core 7 mass parameter while, moreover it is possible to obtain with
The corresponding temperature parameter of this mass parameter and pressure parameter, it is achieved real automatic measurement, the most also
The accuracy of this rock core imbibition experimental provision can be improved further and improve conventional efficient.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, and
Non-to its restriction；Although this utility model being described in detail with reference to foregoing embodiments, ability
The those of ordinary skill in territory is it is understood that it still can be to the technical scheme described in foregoing embodiments
Modify, or the most some or all of technical characteristic is carried out equivalent；And these amendment or
Person replaces, and does not make the essence of appropriate technical solution depart from the model of this utility model each embodiment technical scheme
Enclose.
Claims (8)
1. a rock core imbibition experimental provision, it is characterised in that including: thermostat, constant voltage equipment,
Electronic balance, imbibition cup, imbibition fluid catheter and rock core suspension bracket；
Wherein, in described thermostat, it is placed with the described imbibition cup equipped with imbibition liquid, so that thermostat
The temperature that interior holding is preset；
Described constant voltage equipment is by the described imbibition fluid catheter through described thermostat with described imbibition cup even
Connect, so that the level height of the described imbibition liquid in described imbibition cup keeps fixing；
Described electronic balance is positioned on the end face of described thermostat, and described electronic balance is by through institute
The described rock core suspension bracket stating thermostat is connected with rock core, for weighing the mass parameter of described rock core；Its
In, described rock core suspends and is immersed in described imbibition liquid.
Rock core imbibition experimental provision the most according to claim 1, it is characterised in that also include: number
According to acquisition system；
Described electronic balance is connected with described data collecting system, so that described data collecting system obtains institute
State mass parameter.
Rock core imbibition experimental provision the most according to claim 2, it is characterised in that also include: temperature
Degree sensor；
Described temperature sensor is arranged in described thermostat, is connected with described data collecting system, uses
Temperature parameter in measuring described thermostat, so that described data collecting system obtains described temperature ginseng
Number.
Rock core imbibition experimental provision the most according to claim 2, it is characterised in that described constant voltage fills
Put and be connected with described data collecting system, so that described data collecting system obtains current described constant voltage dress
Put interior pressure parameter.
5. according to the rock core imbibition experimental provision described in any one of claim 1-4, it is characterised in that also
Including: leveling device；
The end face of described leveling device contacts with the bottom surface of described thermostat, is used for adjusting described perseverance
Temperature plane residing for device, so that being positioned at the described electronic balance holding level of the top side of described thermostat.
6. according to the rock core imbibition experimental provision described in any one of claim 1-4, it is characterised in that also
Including bowl cover；
The top of described imbibition cup is additionally provided with dismountable described bowl cover, being provided centrally with of described bowl cover
One through hole, for making described rock core suspension bracket be connected through described through hole with the described rock core in described imbibition cup.
7. according to the rock core imbibition experimental provision described in any one of claim 1-4, it is characterised in that
The junction of described imbibition cup and described imbibition fluid catheter is additionally provided with the first valve, be used for controlling described in ooze
The conducting of imbibition conduit and Guan Bi.
8. according to the rock core imbibition experimental provision described in any one of claim 1-4, it is characterised in that institute
The junction stating constant voltage equipment and described imbibition fluid catheter is additionally provided with the second valve, be used for avoiding described in ooze
Imbibition flows backward in described constant voltage equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620204083.0U CN205483895U (en) | 2016-03-16 | 2016-03-16 | Rock core imbibition experimental apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620204083.0U CN205483895U (en) | 2016-03-16 | 2016-03-16 | Rock core imbibition experimental apparatus |
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| CN205483895U true CN205483895U (en) | 2016-08-17 |
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ID=56654268
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Cited By (11)
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| CN106198298A (en) * | 2016-08-29 | 2016-12-07 | 长安大学 | A kind of negative pressure water absorber of material |
| CN106226193A (en) * | 2016-09-22 | 2016-12-14 | 中国矿业大学(北京) | A kind of coal petrography capillary water absorption measuring method |
| CN107144515A (en) * | 2017-07-05 | 2017-09-08 | 西安石油大学 | Imbibition experimental provision and its method |
| CN108195732A (en) * | 2017-11-30 | 2018-06-22 | 中国石油天然气股份有限公司 | A kind of compact rock core imbibition experimental provision and imbibition weight testing method |
| CN108387478A (en) * | 2017-05-18 | 2018-08-10 | 惠州市宙邦化工有限公司 | A kind of imbibition test method and device |
| CN109856030A (en) * | 2019-02-15 | 2019-06-07 | 中国石油大学(北京) | The determination method of imbibition experimental provision and imbibition recovery percent of reserves |
| CN109915126A (en) * | 2019-04-03 | 2019-06-21 | 中国石油大学(北京) | The measuring method and imbibition experimental rig of the imbibition recovery percent of reserves of oil-bearing rock |
| CN111024544A (en) * | 2019-12-02 | 2020-04-17 | 中国石油大学(北京) | Imbibition experimental system and imbibition experimental method |
| CN113324468A (en) * | 2021-06-28 | 2021-08-31 | 山东科技大学 | Testing device and testing method for measuring seepage height of reverse seepage experiment |
| CN113670778A (en) * | 2021-08-26 | 2021-11-19 | 中国石油大学(华东) | Shale imbibition experimental apparatus of magnetic suspension measurement |
| CN114295531A (en) * | 2022-03-07 | 2022-04-08 | 成都理工大学 | Device and method for accurately simulating self-absorption amount of drilling completion fluid under in-situ condition |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198298A (en) * | 2016-08-29 | 2016-12-07 | 长安大学 | A kind of negative pressure water absorber of material |
| CN106226193A (en) * | 2016-09-22 | 2016-12-14 | 中国矿业大学(北京) | A kind of coal petrography capillary water absorption measuring method |
| CN108387478A (en) * | 2017-05-18 | 2018-08-10 | 惠州市宙邦化工有限公司 | A kind of imbibition test method and device |
| CN107144515A (en) * | 2017-07-05 | 2017-09-08 | 西安石油大学 | Imbibition experimental provision and its method |
| CN108195732B (en) * | 2017-11-30 | 2021-09-28 | 中国石油天然气股份有限公司 | Compact rock core imbibition experimental device and imbibition amount testing method |
| CN108195732A (en) * | 2017-11-30 | 2018-06-22 | 中国石油天然气股份有限公司 | A kind of compact rock core imbibition experimental provision and imbibition weight testing method |
| CN109856030A (en) * | 2019-02-15 | 2019-06-07 | 中国石油大学(北京) | The determination method of imbibition experimental provision and imbibition recovery percent of reserves |
| CN109856030B (en) * | 2019-02-15 | 2024-05-24 | 中国石油大学(北京) | Imbibition experimental device and method for determining imbibition extraction degree |
| CN109915126A (en) * | 2019-04-03 | 2019-06-21 | 中国石油大学(北京) | The measuring method and imbibition experimental rig of the imbibition recovery percent of reserves of oil-bearing rock |
| CN109915126B (en) * | 2019-04-03 | 2021-01-05 | 中国石油大学(北京) | Method for measuring imbibition production degree of oil-bearing rock and imbibition test device |
| CN111024544A (en) * | 2019-12-02 | 2020-04-17 | 中国石油大学(北京) | Imbibition experimental system and imbibition experimental method |
| CN113324468A (en) * | 2021-06-28 | 2021-08-31 | 山东科技大学 | Testing device and testing method for measuring seepage height of reverse seepage experiment |
| CN113324468B (en) * | 2021-06-28 | 2022-06-21 | 山东科技大学 | Testing device and testing method for measuring seepage height of reverse seepage experiment |
| CN113670778A (en) * | 2021-08-26 | 2021-11-19 | 中国石油大学(华东) | Shale imbibition experimental apparatus of magnetic suspension measurement |
| CN114295531A (en) * | 2022-03-07 | 2022-04-08 | 成都理工大学 | Device and method for accurately simulating self-absorption amount of drilling completion fluid under in-situ condition |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
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