CN206330804U - The equipment that different water cut saturation degree shale samples are quickly prepared using microwave - Google Patents
The equipment that different water cut saturation degree shale samples are quickly prepared using microwave Download PDFInfo
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- CN206330804U CN206330804U CN201621281028.8U CN201621281028U CN206330804U CN 206330804 U CN206330804 U CN 206330804U CN 201621281028 U CN201621281028 U CN 201621281028U CN 206330804 U CN206330804 U CN 206330804U
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Abstract
The utility model provides the equipment that a kind of utilization microwave quickly prepares different water cut saturation degree shale samples.The equipment mainly includes：One casing, the box house is provided with a microwave and produced and conduction device, a rock core water containing saturability metering control, a micro-wave screening cover, a power supply and an at least fan.The method for preparing different water cut saturation degree shale samples using equipment of the present utility model includes：Weigh and dry core quality after rock core and saturation, then it is placed in rock core water containing saturability metering control, produced by microwave and conduction device is heated to rock core, after certain rock core reaches default water saturation, the rock core is controlled no longer by heating using microwave, and then the core sample of different water cut saturation degree can be prepared.The equipment that the utility model is provided can prepare the shale samples of different water cut saturation degree convenient, fast, exactly, and the sample prepared can be used in adsorption isotherm experiment.
Description
Technical field
The utility model is related to shale gas exploration and development experiment instrument and equipment, and in particular to one kind is quickly made using microwave
The equipment of standby different water cut saturation degree shale samples, belongs to unconventional oil and gas resource exploration development technique field.
Background technology
Under the background that U.S.'s shale oil gas develops on a large scale, China's shale oil gas also begins to have carried out fairly large exploration to open
Hair, the correlative study to shale oil gas is also increasingly deep.
Different from conventional gas and oil reservoir, shale oil and gas reservoir is both hydrocarbon source rock, is reservoir again.It is in shale reservoir to develop more
Nanoscale hole, occurrence status of the oil gas in shale reservoir are also various.Research to shale feature, should study its work
For the feature of hydrocarbon source rock, such as organic carbon content, pyrolysis analysis study its feature as reservoir again, such as matrix permeability,
Specific surface area etc., will also study its hydrocarbon potential, such as adsorption isotherm experiment, it may be said that be that experiment species is various.
It is generally acknowledged that in terms of shale oil-gas possibility, occurrence status of the shale gas in shale reservoir have three kinds：Free state
Shale gas, ADSORPTION STATE shale gas and solubilised state shale gas.Research thinks that ADSORPTION STATE shale gas accounts for the 20% of total air content in shale
~80%, therefore the calculating to the total air content of shale, Jin Erhui will greatly be influenceed on the research of ADSORPTION STATE shale gas in shale
Evaluation to shale gas stock number produces considerable influence.
Machine matter and inorganic mineral etc. are consisted predominantly of in shale, for hole (such as gas formed during organic matter hydrocarbon generation
Hole) for, it is generally recognized that showing as that oil is wet hole wetability, and hole is hardly aqueous more.And clay mineral then micropore compared with
For development, thought based on solid-air interface adsorption theory, it has certain adsorption capacity to methane, especially montmorillonite has pole
High inner ratio surface area.So it has been generally acknowledged that shale reservoir organic matter (kerogen) and clay mineral have together decided on the suction of methane
Attached ability.But the evaluation to clay mineral hole and methane adsorption ability is typically what is carried out under drying regime, and due to
Clay mineral has extremely strong hydrophily, actual reservoir clay pore surface adsorbed film of water, and there is certain capillary in hole
Water and moveable water.In the case where clay pore surface has moisture film, most of methane molecules are gathered in aperture center, or inhale
It is attached on moisture film, and simultaneously non-adsorbed is on clay surface, this just largely reduces energy of adsorption of the clay mineral to methane
Power.
At present, Chinese scholar is studied for the adsorption isotherm experiment that shale is carried out, and is to carry out phase using dry rock sample mostly
The experimental analysis processing of pass.And practical study is found, because organic matter and clay mineral contain a large amount of micro-nanos in shale reservoir
Hole, and have in initial reservoir clay mineral hole compared with High water cut saturation degree, and solid phase belongs to polar molecule again, easily absorption
Water.Therefore, in order that experimental implementation is carried out, it is necessary to containing according to actual shale in the state of true formation condition is more nearly
Water saturation handles sample, shale samples is carried out under the conditions of different water saturations related determining adsorption.
The missing but the current Preparation equipment for shale samples under different water cut saturation degree even method remains unchanged.In difference
Reach that the conventional method of different water cut saturation degree applies extremely difficult on shale samples by absorption under humidity, generally require length
Up to the equilibration period of several months.On the other hand, the distribution consistency degree of shale core inner aqueous saturation degree also extreme difference, and due to
The poor thermal conduction characteristic of shale, traditional contact baking can cause the water saturation skewness inside shale,
The heat fade cycle longer in heat transfer process will cause to stop still suffering from a part of fluid continuation evaporation after heating simultaneously, most
Lead to not the shale samples for accurately preparing specific water saturation eventually.
For the shale gas exploration and development under China's complex geological condition, preparing the shale samples of different water cut saturation degree is
Essential.Therefore, in the urgent need to a kind of effective equipment for preparing different water cut saturation degree shale samples is above-mentioned to solve
Problem.
Utility model content
The method of the existing shale samples for preparing different water cut saturation degree has that preparation time is long for more than, the rock of preparation
Heart sample interior water saturation is evenly distributed the shortcoming of degree extreme difference, and the purpose of this utility model is to provide a kind of using micro-
The equipment that ripple quickly prepares different water cut saturation degree shale samples.The equipment can it is convenient, fast, prepare different water cut exactly
The shale samples of saturation degree, and the sample interior water saturation prepared more uniformly spreads, advantageously in isothermal
Adsorb the progress of batch experiment test and the validity and accuracy of test result.
To reach above-mentioned purpose, the utility model provides one kind and quickly prepares different water cut saturation degree shale using microwave
The equipment of sample, it includes：One casing, the box house is provided with microwave generation and conduction device, a rock core are aqueous full
With degree metering control, a micro-wave screening cover, a power supply and an at least fan；
The microwave is produced and conduction device includes：An at least magnetron, a microwave transmission chamber, some first machinery valves
And some microwave aggregation covers；
The magnetron is used to produce microwave, and it is connected with the microwave transmission chamber；The microwave transmission chamber is used to orient
Conduct the microwave that the magnetron is produced；Some first machinery valves are respectively positioned on the bottom of the microwave transmission chamber, and often
Individual first machinery valve is connected with a microwave aggregation cover, and first machinery valve is used to control to enter the microwave aggregation cover
Microwave fluxes, and then control the heating power of single core sample；The microwave aggregation cover is used for concentrating microwaves, enhancing heating
Efficiency, prevents microwave interference between different core samples；
The rock core water containing saturability metering control includes：If some rock core heating mantleses, some second machinery valves,
Dry mass sensor and a microcomputer；
The rock core heating mantles is used for the heating space for isolating single core sample, and the top of each rock core heating mantles is equal
Provided with the second machinery valve described in one, the opening of some second machinery valves and opening for some microwave aggregation cover bottoms
Mouth is relative one by one；And the inside of each rock core heating mantles is equipped with a mass sensor, the mass sensor is used to place rock
Heart sample and the mass change for measuring core sample, and the mass sensor is not in contact with each other with the rock core heating mantles；
The microcomputer connects with the mass sensor, some first machinery valves and some second machinery valves
Connect, for handle quality sensor signal, control microwave aggregation cover at the top of the first machinery valve and rock core heating mantles at the top of
The folding of second machinery valve and the water saturation for calculating and controlling each core sample；
At least described microwave aggregation cover, the second machinery valve, rock core heating mantles, mass sensor are located at the micro-wave screening
The inside of cover, the micro-wave screening cover is used for the microwave leaked between shield microwaves aggregation cover and rock core heating mantles, prevents micro-
Wave action is to the power supply of box house and the normal work of other electronic equipments；
The power supply and the magnetron, mass sensor, microcomputer, the first machinery valve, the second machinery valve
And fan connection, for providing electric energy for equipment electric part；
The fan is connected to the inner space of the micro-wave screening cover, for the water inside the micro-wave screening cover to be steamed
Gas is discharged in time.
In the said equipment, it is preferable that the casing is the casing that can be made with the material of shield microwaves, for by microwave
Shielding is in box house.In addition, the micro-wave screening cover of the micro-wave screening cover also for that can be made with the material of shield microwaves.
In the said equipment, it is preferable that the microwave transmission chamber can be a metallic cavity.
In the said equipment, it is preferable that the microwave that the microwave aggregation cover can be made for the high material of microwave reflection rate
Aggregation cover, the rock core heating mantles that the rock core heating mantles can also be made for the high material of microwave reflection rate.
In the said equipment, it is preferable that the taper tubular for being shaped as both ends open of the microwave aggregation cover, and its compared with
One end of minor diameter is connected with first machinery valve, its larger-diameter one rectify to the rock core heating mantles.
In the said equipment, it is preferable that the rock core heating mantles is shaped as tubular.
The equipment that different water cut saturation degree shale samples are quickly prepared using microwave provided using the utility model is carried out
Method prepared by shale samples, may comprise steps of：
(1) some core samples are respectively dried to quality and no longer changed, obtain the core sample of some dryings；
(2) core sample of some dryings with water saturation and is weighed respectively, obtains the core sample of some saturation waters
Product；
(3) if the dry mass core sample of some saturation waters being respectively put into some rock core heating mantleses is passed
On sensor, the core sample of a saturation water, the mass sensor real time measure core sample are placed on each mass sensor
Quality；
(4) power supply is opened, is inputted in the microcomputer after the dry mass of each core sample, saturation water
Quality and default water saturation；
(5) magnetron is opened, and passes through the first machinery valve described in the Microcomputer control and described second
Machinery valve is opened, by the microwave transmission chamber and the microwave aggregation cover by microwave transmission to each core sample, to it
Heated, to accelerate the moisture evaporation inside core sample；
(6) when certain core sample reaches default water saturation, the Microcomputer control core sample is passed through
The first machinery valve at the top of microwave aggregation cover corresponding to product and the second machinery valve at the top of rock core heating mantles are closed, and are made micro-
Ripple is no longer transferred on the core sample, stops heating, to prevent that the core sample internal moisture from continuing to evaporate；
(7) when all core samples reach default water saturation, closed by the Microcomputer control
The magnetron, and the fan continuous service is stopped afterwards for a period of time；
(8) power supply is closed, the core sample of the different water cut saturation degree prepared is taken out.
In the above-mentioned methods, it is preferable that core sample dried to quality to no longer to change be at 105 DEG C in step (1)
At a temperature of carry out.
In the above-mentioned methods, it is preferable that the fan is opened with the unlatching of power supply.
In the above-mentioned methods, it is preferable that it is 10 points to make the fan continuous service to a period of time stopped in step (8)
Clock.
The utility model is using the stronger penetrability of microwave, and the polarity of hydrone in itself is for the absorption of microwave energy,
And nonpolar molecule to microwave penetrate and reflection characteristic reaches and accurately rock core pore interior hydrone is uniformly heated so that
The warm-up movement of rock core pore interior hydrone becomes violent, accelerates the evaporation of hydrone in hole.Due to the stronger penetrability of microwave,
Rock core internal water molecule thermally equivalent is may be such that, uniform evaporation, the vapor evaporated goes out casing by fan belt rapidly.Before processing
Core quality is dried by weighing, and core quality can obtain the total moisture content inside rock core after saturation.And evaporation process
In, the gross mass of rock core can be obtained in real time by the mass sensor of rock core bottom, subtracted in dry core quality i.e. rock core
The real-time quality of portion's fluid.Using the computing formula of rock core water containing saturability
And rely on microcomputer to calculate in real time, real-time water saturation inside rock core can be obtained；When certain rock core reach it is default
After water saturation, the machinery valve at the top of the microwave aggregation cover corresponding to the Microcomputer control rock core is closed, stopping pair
The continuation heating of the rock core, simultaneously closes off the machinery valve at the top of the rock core heating mantles corresponding to the rock core, prevents inside rock core
Fluid continues to evaporate, and to reach the purpose of precise control rock core water containing saturability, and then can prepare different water cut saturation
The core sample of degree.The equipment that the utility model is provided can prepare the shale of different water cut saturation degree convenient, fast, exactly
Sample, and the sample interior water saturation prepared more uniformly spreads, and is advantageously surveyed in isothermal adsorption batch experiment
The progress of examination and the validity and accuracy of test result.
Brief description of the drawings
Fig. 1 is that the utilization microwave in the embodiment of the utility model one quickly prepares different water cut saturation degree shale sample
The structural representation of the equipment of product；
Primary clustering symbol description：
1. microcomputer, 2. power supplys, 3. fans, 4. magnetrons, 5. first machinery valves, 6. microwave aggregation covers, 7. is micro-
Ripple conducts chamber, the inner space of 8. microwave aggregation covers, 9. rock core heating mantleses, 10. mass sensors, 11. core samples, 12. the
Two machinery valves, 13. casings, 14. micro-wave screening covers.
Embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and beneficial effect, now to this practicality
New technical scheme carry out it is described further below, but it is not intended that to it is of the present utility model can practical range restriction.
Embodiment 1
Present embodiments provide the equipment that a kind of utilization microwave quickly prepares different water cut saturation degree shale samples, its structure
As shown in figure 1, the equipment includes：One casing 13, the casing 13 is internally provided with a microwave and produced and conduction device, a rock core
Water saturation metering control, a micro-wave screening cover 14, a power supply 2 and a fan 3；
The microwave is produced and conduction device includes：One magnetron 4, a microwave transmission chamber 7, some first machinery valves 5
And some microwave aggregation covers 6；
The magnetron 4 is used to produce microwave, and it is connected with the microwave transmission chamber 7；The microwave transmission chamber 7 is a gold medal
Belong to cavity, for orienting the microwave that the conduction magnetron 4 is produced；Some first machinery valves 5 are arranged side by side in described
The bottom of microwave transmission chamber 7, and each first machinery valve 5 is connected with a microwave aggregation cover 6, what the magnetron 4 was produced
Inwall reflection of the microwave through the microwave transmission chamber 7 is delivered at some first machinery valves 5, first machinery valve
5 are used to control the microwave fluxes into the microwave aggregation cover 6, and then control the heating power of single core sample 11；It is described
Microwave aggregation cover 6 is used for concentrating microwaves, strengthens the efficiency of heating surface, prevents microwave interference between different core samples 11；
The rock core water containing saturability metering control includes：Some rock core heating mantleses 9, some second machinery valves
12nd, some microcomputers 1 of mass sensor 10 and one；
The rock core heating mantles 9 is shaped as tubular, and it is used for the heating space for isolating single core sample 11, and each
The top of rock core heating mantles 9 is equipped with the second machinery valve 12 described in one, the opening of some second machinery valves 12 and institute
The opening for stating some bottoms of microwave aggregation cover 6 is relative one by one；And the inside of each rock core heating mantles 9 is equipped with a mass sensor
10, the mass sensor 10 is used to place core sample 11 and measures the mass change of core sample 11, and the matter
Quantity sensor 10 is not in contact with each other with the rock core heating mantles 9；If the microcomputer 1 and the mass sensor 10, described
Dry first machinery valve 5 and some second machinery valves 12 are connected, and signal, the control for handling mass sensor 10 are micro-
The folding of first machinery valve 5 at the top of ripple aggregation cover 6 and second machinery valve 12 at the top of rock core heating mantles 9 and in real time
Calculate and control the water saturation of each core sample 11；There is the microcomputer 1 liquid crystal display and input to press
Key, dry mass, saturation water quality and the default water saturation to be reached for inputting each core sample 11；
The microwave aggregation cover 6, the second machinery valve 12, rock core heating mantles 9, mass sensor 10 are located at the microwave screen
The inside of cover 14 is covered, the micro-wave screening cover 14 is micro- for what is leaked between shield microwaves aggregation cover 6 and rock core heating mantles 9
Ripple, prevents that microwave from having influence on the power supply 2 of box house and the normal work of other electronic equipments；
The power supply 2 and the magnetron 4, fan 3, mass sensor 10, microcomputer 1, the first machinery valve 5,
Second machinery valve 12 is connected, for providing electric power for them；
One end air inlet of the fan 3 is connected with the inner space 8 of the microwave aggregation cover, for by the microwave
Vapor inside aggregation cover 14 is discharged in time；
Wherein, the taper tubular for being shaped as both ends open of the microwave aggregation cover 6, and one end of its small diameter with
First machinery valve 5 is connected, its larger-diameter one rectify to the rock core heating mantles 9；
The material of the microwave aggregation cover 6 and rock core heating mantles 9 is the high material of microwave reflection rate
The casing 13 using shield microwaves material, for by micro-wave screening inside casing 13.
Embodiment 2
A kind of method that utilization microwave quickly prepares different water cut saturation degree shale samples is present embodiments provided, it is used
The equipment that the utilization microwave that embodiment 1 is provided quickly prepares different water cut saturation degree shale samples, this method comprises the following steps：
(1) some core samples are no longer changed in 105 DEG C of drying to quality respectively, obtains the core sample of some dryings
Product；
(2) core sample of some dryings with water saturation and is weighed respectively, obtains the core sample of some saturation waters
Product；
(3) if the core sample of some saturation waters is respectively put into the dry mass in some rock core heating mantleses 9
On sensor 10, the core sample of a saturation water, the real time measure of mass sensor 10 are placed on each mass sensor 10
The quality of core sample；
(4) power supply 2 is opened, dry mass, the saturation water of each core sample are inputted in the microcomputer 1
Quality and default water saturation afterwards, while the fan 3 is opened with the unlatching of power supply 2；
(5) open the magnetron 4, and first machinery valve 5 and described the are controlled by the microcomputer 1
Two machinery valves 12 are opened, by the microwave transmission chamber 7 and the microwave aggregation cover 6 by microwave transmission to each core sample
They are heated by product, to accelerate the moisture evaporation inside core sample；
(6) when certain core sample reaches default water saturation, the core sample is controlled by the microcomputer 1
First machinery valve 5 at the top of microwave aggregation cover 6 corresponding to product and second machinery valve 12 at the top of rock core heating mantles 9 are closed
Close, microwave is no longer transferred on the core sample, stop heating, to prevent that the core sample internal moisture from continuing to evaporate；
(7) when all core samples reach default water saturation, control to close by the microcomputer 1
The magnetron 4, and 3 continuous service of fan is stopped after 10 minutes；
(8) power supply 1 is closed, the core sample of the different water cut saturation degree prepared is taken out.
Claims (4)
1. the equipment that a kind of utilization microwave quickly prepares different water cut saturation degree shale samples, it is characterised in that the equipment includes：
One casing, the box house is provided with a microwave and produced and conduction device, a rock core water containing saturability metering control, one
Micro-wave screening cover, a power supply and an at least fan；
The microwave is produced and conduction device includes：An at least magnetron, a microwave transmission chamber, some first machinery valves and
Some microwave aggregation covers；
The magnetron is used to produce microwave, and it is connected with the microwave transmission chamber；The microwave transmission chamber, which is used to orient, to be conducted
The microwave that the magnetron is produced；Some first machinery valves are respectively positioned on the bottom of the microwave transmission chamber, and each
One machinery valve is connected with a microwave aggregation cover, and first machinery valve is used to control to enter the micro- of the microwave aggregation cover
Ripple flux, and then control the heating power of single core sample；The microwave aggregation cover is used for concentrating microwaves, enhancing heating effect
Rate, prevents microwave interference between different core samples；
The rock core water containing saturability metering control includes：Some rock core heating mantleses, some second machinery valves, Ruo Ganzhi
Quantity sensor and a microcomputer；
The rock core heating mantles is used for the heating space for isolating single core sample, and is equipped with the top of each rock core heating mantles
Second machinery valve described in one, the opening and the opening one of some microwave aggregation cover bottoms of some second machinery valves
One is relative；And the inside of each rock core heating mantles is equipped with a mass sensor, the mass sensor is used to place core sample
Product and the mass change for measuring core sample, and the mass sensor is not in contact with each other with the rock core heating mantles；It is described
Microcomputer is connected with the mass sensor, some first machinery valves and some second machinery valves, is used
The first machinery valve at the top of processing quality sensor signal, control microwave aggregation cover and the second machine at the top of rock core heating mantles
The folding of tool valve and the water saturation for calculating and controlling each core sample；
At least described microwave aggregation cover, the second machinery valve, rock core heating mantles, mass sensor are located at the micro-wave screening cover
Inside, the micro-wave screening cover is used for the microwave leaked between shield microwaves aggregation cover and rock core heating mantles；
The power supply and the magnetron, mass sensor, microcomputer, the first machinery valve, the second machinery valve and
Fan is connected, for providing electric energy for equipment electric part；
The fan is connected to the inner space of the micro-wave screening cover, for by the vapor inside the micro-wave screening cover and
When discharge.
2. the equipment that utilization microwave according to claim 1 quickly prepares different water cut saturation degree shale samples, its feature
It is that the microwave transmission chamber is a metallic cavity.
3. the equipment that utilization microwave according to claim 1 quickly prepares different water cut saturation degree shale samples, its feature
It is, the taper tubular for being shaped as both ends open of the microwave aggregation cover, and one end of its small diameter and described first
Machinery valve connect, its larger-diameter one rectify to the rock core heating mantles.
4. the equipment that utilization microwave according to claim 1 quickly prepares different water cut saturation degree shale samples, its feature
It is that the rock core heating mantles is shaped as tubular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621281028.8U CN206330804U (en) | 2016-11-25 | 2016-11-25 | The equipment that different water cut saturation degree shale samples are quickly prepared using microwave |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621281028.8U CN206330804U (en) | 2016-11-25 | 2016-11-25 | The equipment that different water cut saturation degree shale samples are quickly prepared using microwave |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680050A (en) * | 2016-11-25 | 2017-05-17 | 中国石油大学(北京) | Equipment and method for rapidly preparing shale samples with different water saturations by utilizing microwaves |
| CN109632557A (en) * | 2019-01-22 | 2019-04-16 | 中国矿业大学 | A kind of gas-liquid two-phase saturation coal petrography sample experimental provision and saturation degree test method |
| WO2021164363A1 (en) * | 2020-02-17 | 2021-08-26 | 青岛理工大学 | Ect sensor calibration method |
-
2016
- 2016-11-25 CN CN201621281028.8U patent/CN206330804U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680050A (en) * | 2016-11-25 | 2017-05-17 | 中国石油大学(北京) | Equipment and method for rapidly preparing shale samples with different water saturations by utilizing microwaves |
| CN106680050B (en) * | 2016-11-25 | 2023-07-25 | 中国石油大学(北京) | Device and method for rapidly preparing shale samples with different water saturation by utilizing microwaves |
| CN109632557A (en) * | 2019-01-22 | 2019-04-16 | 中国矿业大学 | A kind of gas-liquid two-phase saturation coal petrography sample experimental provision and saturation degree test method |
| CN109632557B (en) * | 2019-01-22 | 2021-11-16 | 中国矿业大学 | Gas-liquid two-phase saturated coal rock sample experimental device and saturation testing method |
| WO2021164363A1 (en) * | 2020-02-17 | 2021-08-26 | 青岛理工大学 | Ect sensor calibration method |
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