CN209385105U - Bored well performance experimental provision after a kind of simulation shale gas well pressure - Google Patents
Bored well performance experimental provision after a kind of simulation shale gas well pressure Download PDFInfo
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- CN209385105U CN209385105U CN201821662942.6U CN201821662942U CN209385105U CN 209385105 U CN209385105 U CN 209385105U CN 201821662942 U CN201821662942 U CN 201821662942U CN 209385105 U CN209385105 U CN 209385105U
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Abstract
The utility model provides bored well performance experimental provision after a kind of simulation shale gas well pressure, including compression system, core holding unit, confining pressure system, metering system and data collection system.Wherein, compression system, confining pressure system and metering system are equipped with pressure gauge.Core holding unit is connect with compression system, confining pressure system and metering system respectively, and data collection system is connect with pressure gauge and metering system.After can be to core sample displacement to irreducible water saturation, simulation fracturing fluid enters rock core displacement or replaces the process of free gas and adsorbed gas, the imbibition process occurred under the displacement effect and capillary force collective effect of termination of pumping pressure of the fracturing fluid after pressing crack construction with rock core during bored well can also further be simulated, and under strata pressure environment, the displacement effect of the termination of pumping pressure after pressing crack construction is analyzed to bored well performance after pressing in conjunction with capillary force action.
Description
Technical field
The utility model belongs to shale gas development technique field, and in particular to bored well performance after a kind of simulation shale gas well pressure
Experimental provision.
Background technique
The economical and effective exploitation of shale gas mainly uses the extensive hydraulic fracturing technology of multistage multistage, usual bored well one after pressure
The section time.It is both at home and abroad to delay fracture closure times, reduction pit shaft energy by the main advantage of the bored well of shale imbibition experimental analysis
The rate of decay is measured, Formation overpressure is maintained, improves well yield and ultimate recoverable reserves.But current experimental method is adopted mostly
With shale and the spontaneous imbibition of liquid under normal pressure, the major impetus of imbibition is capillary force, does not simulate pressure break during bored well
Influence under the displacement effect of termination of pumping pressure of the liquid after pressing crack construction, and how under strata pressure environment, pressure break is applied
Bored well performance after pressure is analyzed in the displacement effect of termination of pumping pressure after work in conjunction with capillary force action.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies of the prior art and provide a kind of simulation shale gas well pressure
Bored well performance experimental provision afterwards, can be to core sample displacement to irreducible water saturation after, simulation fracturing fluid enter rock core drive
The process of free gas and adsorbed gas is replaced or replaces, fracturing fluid stops after pressing crack construction during can also further simulating bored well
The imbibition process occurred under the displacement effect and capillary force collective effect of pump pressure with rock core, and in strata pressure environment
Under, the displacement effect of the termination of pumping pressure after pressing crack construction is analyzed to bored well performance after pressing in conjunction with capillary force action.
In order to solve the above technical problems, the utility model proposes technical solution are as follows:
Bored well performance experimental provision after a kind of simulation shale gas well pressure, including for establishing constraint water saturation for core sample
Degree and the compression system of offer fracturing fluid displacement condition, the core holding unit for fixing core sample are used to be core sample
Apply confining pressure system, metering system and the data collection system of normal stress.Wherein, compression system, confining pressure system and metering system
System is equipped with pressure gauge.Core holding unit is connect with compression system, confining pressure system and metering system respectively, data collection system with
Pressure gauge is connected with metering system.
Bored well performance experimental provision after simulation shale gas well pressure according to the present utility model, can be by compression system to rock
After heart sample displacement to irreducible water saturation, simulation fracturing fluid enters rock core displacement or replaces the mistake of free gas and adsorbed gas
Journey.The displacement effect of termination of pumping pressure of the fracturing fluid after pressing crack construction and capillary force during bored well can also further be simulated
The imbibition process occurred under the imbibition process and capillary force collective effect that occur under collective effect with rock core with rock core.Also,
By confining pressure system, can simulate during bored well how under strata pressure environment, by the drive of the termination of pumping pressure after pressing crack construction
Bored well performance after pressing is analyzed in conjunction with capillary force action for effect.Specifically, fracturing fluid is replaced by displacement pressure to enter
Big channel in rock core, subsequently into liquid pass through the spontaneous imbibition of capillary force again and enter the smaller hole of rock core or microcrack
In, in these two aspects, fracturing fluid all can be contacted and be had an effect with rock core, to observe the physical parameter variation of rock core, evaluation
The effect of fracturing fluid and rock core during bored well.Therefore, it can be the evaluation bored well effect of reservoir, instruct the bored well period, formulate gas well
Reasonable mining system provides theoretical foundation.
By the way that pressure gauge is arranged on compression system and confining pressure system, it is capable of the real-time of extremely easily observation experiment environment
Pressure, to be compared to adjust in real time with pre-set test pressure, so as to confining pressure, the maintenance perseverance being kept fixed
Fixed upstream displacement pressure.Pressure gauge is arranged on metering system can observe the sealing effect and fracturing fluid of core holding unit
Whether drive is logical.If there is that it will cause upstream and downstream is unbalance for gas leakage, if breaking seam in rock core, upstream pressure passes through rock core and transmits
Pressure is to downstream.Metering system can evaluate the tolerance and liquid measure that displacement comes out from rock core, since core sample is in initial shape
It is saturated gas and liquid under state, when foreign liquid enters rock core, row drives the gas and liquid in rock core, measures by metering system
Tolerance and liquid measure.Therefore, by data collection system, so that subsequent analysis of experimental results is accurate, convenient, fast.
For above-mentioned technical proposal, the further improvement that can also be discussed below.
Bored well performance experimental provision after simulation shale gas well pressure according to the present utility model, in a preferred embodiment
In, compression system includes hydraulic pump, pressure break liquid storage tank, gas reservoir, conversion valve and two ball-and-seat doors.Wherein, hydraulic pump
Connect respectively with the entrance of the gentle body storage tank of pressure break liquid storage tank, the outlet of the gentle body storage tank of pressure break liquid storage tank respectively with conversion valve
Connection, two ball-and-seat doors are connect with conversion valve and core holding unit respectively, and two ball-and-seat doors are opposite in flow direction
Mode be arranged.The outlet of the gentle body storage tank of pressure break liquid storage tank, the entrance of conversion valve and ball-and-seat door is arranged in pressure gauge
Inlet and outlet.
It can easily realize that gas storage tank and the conversion of pressure break liquid storage tank are injected into rock core by conversion valve
In clamper, it is ensured that simulated experiment true and accurate, since the flow direction of two ball-and-seat doors is on the contrary, therefore compression system can be to rock
Heart cycles samples inject fracturing fluid, and injection pressure is kept to stablize.
Specifically, in one preferred embodiment, confining pressure system include confining pressure pump, pressure gauge be arranged in confining pressure pump with
Between core holding unit.Preferably, confining pressure pump uses hydraulic pump, by water or oil, applies to the rubber sleeve of clamping rock core and determines
Pressure.
Specifically, in one preferred embodiment, metering system includes control valve, graduated cylinder and flowmeter.Wherein,
Wherein one end of control valve is connect with core holding unit, and the other end of control valve is connect with graduated cylinder and flowmeter respectively.Pressure
Power table is arranged between control valve and graduated cylinder.Specifically, tolerance is measured by graduated cylinder, flowmeter measures liquid measure.Specifically
Ground, control valve are open in the experiment incipient stage, after liquid or the gas row natively having in rock core have driven, if up and down
Trip pressure balances quickly, shows that injecting liquid flows into downstream along the big channel of rock core, cannot liquid under the bored well state of more preferable simulation
Body and the more haptoreactions of rock core, can close control valve at this time, allow external injection liquid and rock core that sustained response occurs.
If upstream and downstream pressure still keeps certain pressure difference, the valve can be kept to open, simulate contact of the liquid with rock core under bored well state
Process.
In one preferred embodiment, simulate shale gas well pressure after bored well performance experimental provision further include host computer and
Computer, host computer are connect with data collection system and computer respectively.It, can be easily right by setting host computer and computer
It realizes that data collection system data collected are analyzed, and can ensure the accurate of experiment analysis results.
Further, in one preferred embodiment, compression system, core holding unit, confining pressure system and metering system
System is arranged in insulating box.It can control the temperature of simulated experiment by the way that insulating box is arranged, reduce the volume change of fluid, make
It must measure more acurrate.
Further, in one preferred embodiment, insulating box is equipped with temperature sensor.Pass through temperature sensor energy
The real time temperature of insulating box is enough monitored so that the temperature control of insulating box is more accurate.
Further, in one preferred embodiment, insulating box is equipped with display screen.By display screen by insulating box
Real time temperature is shown in time, is observed when facilitating experiment.
Compared with the prior art, the advantages of the utility model are: can be to core sample displacement to irreducible water saturation
Later, simulation fracturing fluid enters rock core displacement or replaces the process of free gas and adsorbed gas, can also further simulate bored well mistake
The infiltration occurred under the displacement effect and capillary force collective effect of termination of pumping pressure of the fracturing fluid after pressing crack construction with rock core in journey
It is drawn through journey, and under strata pressure environment, by the displacement effect of the termination of pumping pressure after pressing crack construction and capillary force action knot
It closes to analyze bored well performance after pressure.
Detailed description of the invention
Hereinafter the utility model will be described in more detail based on the embodiments and with reference to the accompanying drawings.Wherein:
Fig. 1 schematically illustrate the utility model embodiment simulation shale gas well pressure after bored well performance experimental provision it is whole
Body structure.
In the accompanying drawings, identical component uses identical appended drawing reference.The attached drawing is not drawn according to the actual ratio.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but is not therefore limited
The protection scope of the utility model processed.
Fig. 1 schematically illustrates bored well performance experimental provision 10 after the simulation shale gas well pressure of the utility model embodiment
Overall structure.
As shown in Figure 1, bored well performance experimental provision 10 after the simulation shale gas well pressure of the real-time example of the utility model, including with
In establishing irreducible water saturation for core sample and provide the compression system 1 of fracturing fluid displacement condition, for fixing core sample
101 clamper 2, the confining pressure system 3 for applying normal stress for core sample 101, metering system 4 and data acquisition system
System 5.Wherein, compression system 1, confining pressure system 3 and metering system 4 are equipped with pressure gauge 6.Core holding unit 2 respectively with compression train
System 1, confining pressure system 3 and metering system 4 connect, and data collection system 5 is connect with pressure gauge 6 and metering system 4.It is practical according to this
Bored well performance experimental provision after the simulation shale gas well pressure of new embodiment, can by compression system to core sample displacement extremely
After irreducible water saturation, simulation fracturing fluid enters rock core displacement or replaces the process of free gas and adsorbed gas.It can also be into one
Step simulate during bored well under the displacement effect and capillary force collective effect of termination of pumping pressure of the fracturing fluid after pressing crack construction with
The imbibition process occurred under imbibition process and capillary force collective effect that rock core occurs with rock core.Also, pass through confining pressure system,
It can simulate during bored well how under strata pressure environment, by the displacement effect of the termination of pumping pressure after pressing crack construction and capillary
Power effect in conjunction with come analyze pressure after bored well performance.Specifically, fracturing fluid is replaced by displacement pressure and enters big channel in rock core, so
The liquid entered afterwards passes through the spontaneous imbibition of capillary force again and enters in the smaller hole of rock core or microcrack, in these two aspects, pressure
Splitting liquid all can contact and have an effect with rock core, to observe the physical parameter variation of rock core, evaluate during bored well fracturing fluid with
The effect of rock core.Therefore, it can be the evaluation bored well effect of reservoir, instruct the bored well period, formulate the reasonable mining system of gas well and provide
Theoretical foundation.
By the way that pressure gauge is arranged on compression system and confining pressure system, it is capable of the real-time of extremely easily observation experiment environment
Pressure, to be compared to adjust in real time with pre-set test pressure, so as to confining pressure, the maintenance perseverance being kept fixed
Fixed upstream displacement pressure.Pressure gauge is arranged on metering system can observe the sealing effect and fracturing fluid of core holding unit
Whether drive is logical.If there is that it will cause upstream and downstream is unbalance for gas leakage, if breaking seam in rock core, upstream pressure passes through rock core and transmits
Pressure is to downstream.Metering system can evaluate the tolerance and liquid measure that displacement comes out from rock core, since core sample is in initial shape
It is saturated gas and liquid under state, when foreign liquid enters rock core, row drives the gas and liquid in rock core, measures by metering system
Tolerance and liquid measure.Therefore, by data collection system, so that subsequent analysis of experimental results is accurate, convenient, fast.
In this embodiment, it is preferred that as shown in Figure 1, compression system 1 includes hydraulic pump 11, pressure break liquid storage tank 12, gas
Storage tank 13, conversion valve 14 and ball-and-seat door 15,16.Wherein, hydraulic pump 11 respectively with pressure break liquid storage tank 12 and gas reservoir 13
Entrance connection, the outlet of pressure break liquid storage tank 12 and gas reservoir 13 connect with conversion valve 14 respectively, 15,16 points of ball-and-seat door
Do not connect with conversion valve 14 and core holding unit 2, and ball-and-seat door 15,16 in flow to it is opposite in a manner of be arranged.Pressure
The import of the outlet of pressure break liquid storage tank 12 and gas reservoir 13, the entrance of conversion valve 14 and ball-and-seat door 15,16 is arranged in table 6
The outlet and.It can easily realize that the conversion of gas storage tank and pressure break liquid storage tank is injected into rock core folder by conversion valve
In holder, it is ensured that simulated experiment true and accurate, since the flow direction of ball-and-seat door 15,16 is on the contrary, therefore compression system 1 can be to rock
The circulation injection fracturing fluid of heart sample 101, keeps injection pressure to stablize.Specifically, in one preferred embodiment, confining pressure system
System 3 includes confining pressure pump 31, and pressure gauge 6 is arranged between confining pressure pump 31 and core holding unit 2.Preferably, confining pressure pump 31 uses liquid
Press pump applies determining pressure to the rubber sleeve of clamping rock core by water or oil.
In this embodiment, it is preferred that as shown in Figure 1, metering system 4 includes control valve 41, graduated cylinder 42 and flowmeter
43.Wherein, wherein one end of control valve 41 is connect with core holding unit 2, the other end of control valve 41 respectively with graduated cylinder 42
It is connected with flowmeter 43.The setting of pressure gauge 6 is between the 42 of control valve 41 and graduated cylinder.Specifically, gas is measured by floating ball graduated cylinder
Amount, measures liquid measure by beaker.Specifically, control valve is open in the experiment incipient stage, when what is natively had in rock core
After liquid or gas row have driven, if upstream and downstream pressure balances quickly, show that injecting liquid flows into downstream along the big channel of rock core, no
Can liquid and the more haptoreactions of rock core under the more preferable bored well state of simulation, control valve can be closed at this time, allow external note
Enter liquid and sustained response occurs for rock core.If upstream and downstream pressure still keeps certain pressure difference, the valve can be kept to open, simulated bored
The contact process of liquid and rock core under well state.
In one preferred embodiment, bored well performance experimental provision 10 further includes host computer after simulating shale gas well pressure
7 and computer 8, host computer 7 connect respectively with data collection system 5 and computer 8.It, can be very by setting host computer and computer
Easily realization data collection system data collected are analyzed, and can ensure the accurate of experiment analysis results.
Further, in one preferred embodiment, compression system 1, core holding unit 2, confining pressure system 3 and metering
System 4 is arranged in insulating box 9.It can control the temperature of simulated experiment by the way that insulating box is arranged, the volume for reducing fluid becomes
Change, so that metering is more acurrate.In one preferred embodiment, insulating box 9 is equipped with temperature sensor.Pass through temperature sensor
The real time temperature of insulating box can be monitored so that the temperature control of insulating box is more accurate.In a preferred implementation
In mode, insulating box 9 is equipped with display screen.The real time temperature of insulating box is shown in time by display screen, facilitates experiment when progress
Observation.
The course of work of bored well performance experimental provision 10 is as follows after the simulation shale gas well pressure of the real-time example of the utility model:
In the construction of practical mining site, bored well is needed for a period of time after the completion of shale gas well fracturing work, during bored well, fracturing fluid
Enter reservoir under the displacement effect of termination of pumping pressure and capillary force the effects of, further with man-made fracture, reservoir it is natural micro-
Crack and shale matrix are had an effect.Plug or drain production are bored after to bored well again.
According to the mining method of practical mining site, before test, after choosing the clean drying of shale core sample, it is processed into mark
Quasi- Φ 25mm × 40mm core sample, core sample is put into core holding unit 2, is rectified an instrument, including correcting all pressures
Power table and inspection apparatus whether gas leakage, close all valves.
During the test, it is first shut off hydraulic pump 11, system is vacuumized, closes all valves, gives core holding unit
Add overburden pressure P0 at confining pressure to horizontal wellbore, overburden pressure by upper overlying strata stone gravity and hole fluid pressure it
Difference determines, is then shut off circulation loop " hydraulic pump 11- conversion valve 14- ball-and-seat door 15- core holding unit 2- ball-and-seat door
Ball-and-seat door 16 in 16- conversion valve 14 " makes injection gas come in from rock core upstream, and downstream is gone out.It opens in conversion valve 14
2 lower end control valve 41 of 13 one end flow line of gas reservoir and core holding unit, gas is injected into core holding unit 2, will
After 101 displacement to irreducible water saturation of core sample, flow line in conversion valve 14 is switched into fracturing fluid pipeline, opening is followed
Ball-and-seat door 15,16 in loop back path recycle injection fracturing fluid to core sample 101, injection pressure are kept to stablize.Injection pressure root
It converts to obtain according to pressure drop rate during bored well, simulation fracturing fluid enters rock core displacement or replaces the mistake of free gas and adsorbed gas
Journey closes control valve 41 when no longer bubbling in graduated cylinder, that is to say, that after gas in the complete rock core of drive row, under closing
Valve is swum, comes into full contact with rock core with external fracturing fluid, fracturing fluid is in displacement pressure and capillary during further simulating bored well
The imbibition process occurred under the collective effects such as pipe power with core sample 101.
According to above-described embodiment, it is seen then that the utility model relates to simulation shale gas well pressure after bored well performance experimental provision,
After can be to core sample displacement to irreducible water saturation, simulation fracturing fluid enters rock core displacement or displacement free gas and absorption
The process of gas can also further simulate the displacement effect of termination of pumping pressure of the fracturing fluid after pressing crack construction and hair during bored well
The imbibition process occurred under tubule power collective effect with rock core, and under strata pressure environment, by the termination of pumping after pressing crack construction
Bored well performance after pressure is analyzed in the displacement effect of pressure in conjunction with capillary force action.
Although the present utility model has been described by reference to the preferred embodiments, but the scope of the utility model is not being departed from
In the case where, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as being not present
Structural conflict, items technical characteristic mentioned in the various embodiments can be combined in any way.The utility model is simultaneously
It is not limited to specific embodiment disclosed herein, but all technical solutions including falling within the scope of the claims.
Claims (8)
1. bored well performance experimental provision after a kind of simulation shale gas well pressure, which is characterized in that including for being established for core sample
The compression system of irreducible water saturation and offer fracturing fluid displacement condition, is used for the core holding unit for fixing core sample
Apply confining pressure system, metering system and the data collection system of normal stress for core sample；Wherein,
The compression system, the confining pressure system and the metering system are equipped with pressure gauge；
The core holding unit is connect with the compression system, the confining pressure system and the metering system respectively, the data
Acquisition system is connect with the pressure gauge and the metering system.
2. bored well performance experimental provision after simulation shale gas well pressure according to claim 1, which is characterized in that the pressurization
System includes hydraulic pump, pressure break liquid storage tank, gas reservoir, conversion valve and two ball-and-seat doors；Wherein,
The hydraulic pump is connect with the entrance of the pressure break liquid storage tank and the gas reservoir respectively, the pressure break liquid storage tank and institute
The outlet for stating gas reservoir is connect with the conversion valve respectively, two ball-and-seat doors respectively with the conversion valve and
Core holding unit connection, and two ball-and-seat doors in flow to it is opposite in a manner of be arranged；
The outlet of the pressure break liquid storage tank and the gas reservoir, the entrance of the conversion valve and institute is arranged in the pressure gauge
State the inlet and outlet of ball-and-seat door.
3. bored well performance experimental provision after simulation shale gas well pressure according to claim 1 or 2, which is characterized in that described
Confining pressure system includes confining pressure pump, and the pressure gauge is arranged between the confining pressure pump and the core holding unit.
4. bored well performance experimental provision after simulation shale gas well pressure according to claim 1 or 2, which is characterized in that described
Metering system includes control valve, graduated cylinder and flowmeter；Wherein,
Wherein one end of the control valve is connect with the core holding unit, the other end of the control valve respectively with it is described
Graduated cylinder is connected with the flowmeter；
The pressure gauge is arranged between the control valve and the graduated cylinder.
5. bored well performance experimental provision after simulation shale gas well pressure according to claim 1 or 2, which is characterized in that also wrap
Host computer and computer are included, the host computer is connect with the data collection system and the computer respectively.
6. bored well performance experimental provision after simulation shale gas well pressure according to claim 1 or 2, which is characterized in that described
Compression system, the core holding unit, the confining pressure system and the metering system are arranged in insulating box.
7. bored well performance experimental provision after simulation shale gas well pressure according to claim 6, which is characterized in that the constant temperature
Case is equipped with temperature sensor.
8. bored well performance experimental provision after simulation shale gas well pressure according to claim 6, which is characterized in that the constant temperature
Case is equipped with display screen.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111189994A (en) * | 2020-01-10 | 2020-05-22 | 中国石油化工股份有限公司 | For CO2Simulation device and method for quantitative representation of degree of overlap |
| CN111257540A (en) * | 2020-02-27 | 2020-06-09 | 中国石油大学(华东) | Supercritical CO evaluation2Experimental method and device for full-period fracturing energy storage flow-back effect |
| CN111879674A (en) * | 2020-07-15 | 2020-11-03 | 西南石油大学 | Testing device and method for determining reasonable well closing time based on shale imbibition permeability |
| CN112177608A (en) * | 2020-11-17 | 2021-01-05 | 大庆亿莱检验检测技术服务有限公司 | High-temperature high-pressure shale oil reservoir imbibition evaluation device |
| CN114034597A (en) * | 2021-12-09 | 2022-02-11 | 中国石油大学(华东) | Shale core high-temperature and high-pressure saturation, fracturing and imbibition integrated device and experimental method thereof |
| CN114720344A (en) * | 2022-02-25 | 2022-07-08 | 中国石油大学(北京) | Rock core displacement experimental device and method |
| CN116066068A (en) * | 2021-12-30 | 2023-05-05 | 中国石油天然气集团有限公司 | Method and device for determining well-logging time, storage medium and electronic equipment |
| CN114720344B (en) * | 2022-02-25 | 2024-04-23 | 中国石油大学(北京) | Rock core displacement experiment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189994B (en) * | 2020-01-10 | 2022-07-08 | 中国石油化工股份有限公司 | For CO2Simulation device and method for quantitative representation of degree of overlap |
| CN111189994A (en) * | 2020-01-10 | 2020-05-22 | 中国石油化工股份有限公司 | For CO2Simulation device and method for quantitative representation of degree of overlap |
| CN111257540A (en) * | 2020-02-27 | 2020-06-09 | 中国石油大学(华东) | Supercritical CO evaluation2Experimental method and device for full-period fracturing energy storage flow-back effect |
| CN111879674A (en) * | 2020-07-15 | 2020-11-03 | 西南石油大学 | Testing device and method for determining reasonable well closing time based on shale imbibition permeability |
| CN111879674B (en) * | 2020-07-15 | 2022-02-01 | 西南石油大学 | Testing device and method for determining reasonable well closing time based on shale imbibition permeability |
| CN112177608A (en) * | 2020-11-17 | 2021-01-05 | 大庆亿莱检验检测技术服务有限公司 | High-temperature high-pressure shale oil reservoir imbibition evaluation device |
| CN112177608B (en) * | 2020-11-17 | 2021-05-28 | 大庆亿莱检验检测技术服务有限公司 | High-temperature high-pressure shale oil reservoir imbibition evaluation device |
| CN114034597A (en) * | 2021-12-09 | 2022-02-11 | 中国石油大学(华东) | Shale core high-temperature and high-pressure saturation, fracturing and imbibition integrated device and experimental method thereof |
| CN114034597B (en) * | 2021-12-09 | 2023-11-21 | 中国石油大学(华东) | Shale core high-temperature high-pressure saturation, fracturing and imbibition integrated device and method |
| CN116066068A (en) * | 2021-12-30 | 2023-05-05 | 中国石油天然气集团有限公司 | Method and device for determining well-logging time, storage medium and electronic equipment |
| CN116066068B (en) * | 2021-12-30 | 2024-03-29 | 中国石油天然气集团有限公司 | Method and device for determining well-logging time, storage medium and electronic equipment |
| CN114720344A (en) * | 2022-02-25 | 2022-07-08 | 中国石油大学(北京) | Rock core displacement experimental device and method |
| CN114720344B (en) * | 2022-02-25 | 2024-04-23 | 中国石油大学(北京) | Rock core displacement experiment method |
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