CN109752406A - The measuring device of hypotonic tight rock specific heat capacity parameter - Google Patents
The measuring device of hypotonic tight rock specific heat capacity parameter Download PDFInfo
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- CN109752406A CN109752406A CN201910066666.XA CN201910066666A CN109752406A CN 109752406 A CN109752406 A CN 109752406A CN 201910066666 A CN201910066666 A CN 201910066666A CN 109752406 A CN109752406 A CN 109752406A
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Abstract
The present invention provides a kind of measuring devices of hypotonic tight rock specific heat capacity parameter, comprising: controller and shell, and be arranged in intracorporal first cavity of shell, the second cavity, temperature inductor and heat-insulated valve；Rock sample to be measured is placed on the first inside cavity；Having heaters is set in the first cavity；Controller is separately connected heater and heat-insulated valve, and control the opening and closing of heat-insulated valve, temperature inductor connects controller, when being heated to preset temperature for monitoring the first inside cavity, acquire the initial temperature of the second inside cavity, and after heat-insulated valve opening, the equilibrium temperature of the second inside cavity is acquired；Controller determines the specific heat capacity parameter of rock sample to be measured according to initial temperature, equilibrium temperature, preset temperature and fluid media (medium).The specific heat capacity parameter of rock sample to be measured is calculated indirectly, improves the precision of rock specific heat capacity parameter measurement in conjunction with the property parameters of fluid media (medium) by the temperature change of two inside cavities of monitoring by the present invention.
Description
Technical field
The present invention relates to field of measuring technique, the measuring device of espespecially a kind of hypotonic tight rock specific heat capacity parameter.
Background technique
Temperature well testing is a kind of important means of inverting complex reservoir parameter, in untraditional reservoir, geothermal energy resources
Etc. be widely applied.And the premise that carry out temperature test is accurately to determine that producing well bottom hole temperature (BHT) is distributed.
Therefore the specific heat capacity property of Accurate Determining rock is that the basis of temperature test is carried out to producing well.
Existing hypotonic tight rock specific heat capacity property measurement scheme is mostly measurement of instability；Usually rock sample to be measured is cut
At bulk, or it is fabricated to the cylindrical body that diameter is greater than 50mm, the measurement surface of hypotonic densification rock sample is smooth by manual polishing, so
Sensing chip is close to the measurement surface of rock sample afterwards.Rock sample is heated by sensing chip, then the measurement table of sensing chip monitoring rock sample
The temperature change in face, and then the relevant parameter of the specific heat capacity of hypotonic fine and close rock sample is calculated.
In above scheme, since what the smooth degree on the measurement surface of rock sample directly affected sensing chip and rock sample is close to journey
Degree, and then sensing chip is influenced to the diabatic process on measurement surface, thereby result in measurement error；In addition, since anisotropic is institute
Have a general character of hypotonic tight rock, above scheme it is actually measured be specific heat capacity parameter on the measurement surface of rock sample.Therefore, existing
In some measurement schemes, the uncertain factors such as the form of rock sample, the smoothness for measuring surface can all influence final measurement knot
Fruit, and then increase the error of measurement result.
Summary of the invention
To solve the problems such as measurement is inaccurate, error is big existing for hypotonic tight rock specific heat capacity parameter measurement at present, this
Invention provides a kind of measuring device of hypotonic tight rock specific heat capacity parameter, comprising: controller and shell, and be arranged described
It intracorporal first cavity of shell, the second cavity, temperature inductor and is set between first cavity and second cavity
Heat-insulated valve；Wherein, first cavity and second inside cavity are full of identical fluid media (medium)；
Rock sample to be measured is placed in the fluid media (medium) of first inside cavity；Heating is provided in first cavity
Device, for the fluid media (medium) of first inside cavity to be heated to preset temperature；
The controller is separately connected the heater and the heat-insulated valve, for beginning to warm up it in the heater
Before, the heat-insulated valve is closed in control, and after the fluid media (medium) of first inside cavity is heated to the preset temperature,
The heat-insulated valve is opened in control；
The temperature inductor connects the controller, for being heated to institute in the fluid media (medium) of first inside cavity
When stating preset temperature, the initial temperature of the fluid media (medium) of second inside cavity is acquired, and after the heat-insulated valve is opened,
The initial temperature and the equilibrium temperature are sent to institute by the equilibrium temperature for acquiring the fluid media (medium) of second inside cavity
State controller；
The controller is according to the initial temperature, the equilibrium temperature, the preset temperature and the fluid media (medium)
Determine the specific heat capacity parameter of the rock sample to be measured.
Optionally, in an embodiment of the present invention, the controller includes: the first computing unit, for according to described pre-
If temperature and the equilibrium temperature calculate the first heat of the intracorporal fluid media (medium) of the first chamber after the heat-insulated valve is opened
Measure variable quantity；Second computing unit is beaten for being calculated according to the initial temperature and the equilibrium temperature in the heat-insulated valve
Open the second thermal change amount of the rear intracorporal fluid media (medium) of second chamber；Determination unit is separately connected described first and calculates list
First and described second computing unit, the determination unit are used to receive first heat that first computing unit is sent and become
The second thermal change amount that change amount and second computing unit are sent, and according to the first thermal change amount and described
Second thermal change amount and the ratio thermal parameter of the fluid media (medium) determine the specific heat capacity parameter of the rock sample to be measured.
Optionally, in an embodiment of the present invention, the controller includes: pre-control unit, and the pre-control unit connects
The heat-insulated valve is connect, for the heat-insulated valve being opened, so that first cavity before the heater is begun to warm up
The fluid media (medium) temperature having the same of internal fluid media (medium) and second inside cavity.
Optionally, in an embodiment of the present invention, thermal insulation layer is provided in the shell, the thermal insulation layer surrounds institute respectively
The first cavity and second cavity are stated, the temperature for completely cutting off between first cavity and second cavity, and every
The temperature of exhausted first cavity, second cavity and the hull outside.
Optionally, in an embodiment of the present invention, the thermal insulation layer is urethane foamed material.
Optionally, in an embodiment of the present invention, the fluid media (medium) is gas.
Optionally, in an embodiment of the present invention, the shape of the rock sample to be measured is sheet.
Optionally, in an embodiment of the present invention, first cavity and second cavity are sealing heat insultating cavity.
Optionally, in an embodiment of the present invention, further includes: fluid Bottle；The fluid Bottle is connected to described
Second cavity, for being filled with the fluid media (medium) to second inside cavity.
Optionally, in an embodiment of the present invention, chamber door is provided on first cavity.
The measuring device of hypotonic tight rock specific heat capacity parameter provided by the invention, by the way that sealing insulation is arranged in shell
The first cavity, the second cavity and temperature inductor, and in first cavity and second inside cavity full of identical
Fluid media (medium)；Then by the way that the heater in portion in the first cavity is arranged to the fluid media (medium) for being placed on first inside cavity
In rock sample to be measured heated.Heat-insulated valve, the controller are provided between first cavity and second cavity
It is separately connected the heater and the heat-insulated valve；The controller is used for before the heater is begun to warm up, control
The heat-insulated valve is closed, and after the fluid media (medium) of first inside cavity is heated to the preset temperature, control is opened
The heat-insulated valve；The temperature inductor connects the controller, is heated in the fluid media (medium) of first inside cavity
After when the preset temperature, the initial temperature of the fluid media (medium) of second inside cavity is acquired, and is beaten in the heat-insulated valve
After opening, the equilibrium temperature of the fluid media (medium) of second inside cavity is acquired, controller is according to the initial temperature, the stabilization
Temperature, the preset temperature and the fluid media (medium) determine the specific heat capacity parameter of the rock sample to be measured.In this way, passing through monitoring two
Rock sample to be measured can be calculated in conjunction with the property parameters of fluid media (medium) in the temperature change of a inside cavity fluid media (medium) indirectly
Specific heat capacity parameter, with it is existing directly adopt sensing chip measurement mode compared with, do not need selection and processing measurement surface, keep away
The measurement error for having exempted from measurement surface instability strip, improves the precision of hypotonic tight rock specific heat capacity parameter measurement.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, embodiment will be described below
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the structure of the measuring device of the hypotonic tight rock specific heat capacity parameter shown in an exemplary embodiment of the invention
Figure；
Fig. 2 is the knot of the measuring device of the hypotonic tight rock specific heat capacity parameter shown in another exemplary embodiment of the present invention
Composition；
Appended drawing reference:
1- rubber foot prop, 2- can, 3- urethane foamed material, the heat-insulated valve of 4-, 5- rock sample chamber, 6- rock sample to be measured, 7-
Heat-resisting filament, 8- resistive heater, 9- chamber door, 10- data line, 11- device gate, 12- hinge, 13- computer, 14- temperature
Inductor, 15- air chamber, the first pipeline of 16-, 17- intake valve, 18- vent valve, the second pipeline of 19-, 20- fluid Bottle.
Specific embodiment
The embodiment of the present invention provides a kind of measuring device of hypotonic tight rock specific heat capacity parameter.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It is as shown in Figure 1 the structure of the measuring device of the rock specific heat capacity parameter shown in an exemplary embodiment of the invention
Figure.Device as shown in the figure includes: controller 200 and shell 100, and is arranged in intracorporal first cavity 110, second of the shell
Cavity 120, temperature inductor 130 and the heat-insulated valve 140 being set between first cavity and second cavity；Its
In, first cavity and second inside cavity are full of identical fluid media (medium)；
Rock sample to be measured is placed in the fluid media (medium) of first inside cavity；Heating is provided in first cavity
Device, for the fluid media (medium) of first inside cavity to be heated to preset temperature；
The controller is separately connected the heater and the heat-insulated valve, for beginning to warm up it in the heater
Before, the heat-insulated valve is closed in control, and after the fluid media (medium) of first inside cavity is heated to the preset temperature,
The heat-insulated valve is opened in control；
The temperature inductor connects the controller, for being heated to institute in the fluid media (medium) of first inside cavity
When stating preset temperature, the initial temperature of the fluid media (medium) of second inside cavity is acquired, and after the heat-insulated valve is opened,
The initial temperature and the equilibrium temperature are sent to institute by the equilibrium temperature for acquiring the fluid media (medium) of second inside cavity
State controller；
The controller is according to the initial temperature, the equilibrium temperature, the preset temperature and the fluid media (medium)
Determine the specific heat capacity parameter of the rock sample to be measured.
As an embodiment of the present invention, the controller includes: the first computing unit, for according to the preset temperature and
The equilibrium temperature calculates the first thermal change amount of the intracorporal fluid media (medium) of the first chamber after the heat-insulated valve is opened；
Second computing unit, for being calculated described the after the heat-insulated valve is opened according to the initial temperature and the equilibrium temperature
Second thermal change amount of the intracorporal fluid media (medium) of two chambers；Determination unit is separately connected first computing unit and described
Two computing units, the determination unit are used to receive the first thermal change amount that first computing unit is sent and described
The second thermal change amount that second computing unit is sent, and become according to the first thermal change amount and second heat
Change amount and the ratio thermal parameter of the fluid media (medium) determine the specific heat capacity parameter of the rock sample to be measured.
As an embodiment of the present invention, the controller includes: pre-control unit, pre-control unit connection it is described every
Thermal valve door, for the heat-insulated valve being opened, so that the stream of first inside cavity before the heater is begun to warm up
The fluid media (medium) temperature having the same of body medium and second inside cavity.
As an embodiment of the present invention, thermal insulation layer is provided in the shell, the thermal insulation layer surrounds described first respectively
Cavity and second cavity, the temperature for completely cutting off between first cavity and second cavity, and described in isolation
The temperature of first cavity, second cavity and the hull outside.
In the present embodiment, the thermal insulation layer is urethane foamed material.
As an embodiment of the present invention, the fluid media (medium) is gas.
As an embodiment of the present invention, the shape of the rock sample to be measured is sheet.
As an embodiment of the present invention, first cavity and second cavity are sealing heat insultating cavity.
As an embodiment of the present invention, further includes: fluid Bottle；The fluid Bottle is connected to second chamber
Body, for being filled with the fluid media (medium) to second inside cavity.
As an embodiment of the present invention, chamber door is provided on first cavity.
In a specific embodiment of the invention, as shown in Figure 1, the present embodiment provides a kind of measurements of rock specific heat capacity parameter
Device, the device include: controller 200 and shell 100, and the first cavity 110, the second cavity that are arranged in shell 100
120 and temperature inductor 130；First cavity 110 and the second cavity 120 are sealing heat insultating cavity；First cavity 110 and second
Identical fluid media (medium) is full of inside cavity 120；Wherein, rock sample to be measured is placed in the fluid media (medium) inside the first cavity 110；
Having heaters 111 is set in first cavity 110, for the fluid media (medium) inside the first cavity 110 to be heated to preset temperature；The
It is provided with heat-insulated valve 140 between one cavity 110 and the second cavity 120, controller 200 is separately connected heater 111 and heat-insulated
Valve 140；Controller 200 is used for before heater 111 is begun to warm up, and heat-insulated valve 140 is closed in control；Controller 200 is also
After being heated to preset temperature for the fluid media (medium) inside the first cavity 110, heat-insulated valve 140 is opened in control；Temperature sense
Device 130 connects controller 200, when being heated to preset temperature for the fluid media (medium) inside the first cavity 110, acquires the second chamber
The initial temperature of fluid media (medium) inside body 120, and after heat-insulated valve 140 opening, acquire the fluid inside the second cavity 120
Initial temperature and equilibrium temperature are sent to controller 200 by the equilibrium temperature of medium；Controller 200 is also used to receive temperature sense
The initial temperature and equilibrium temperature for answering device 130 to send, and according to initial temperature, equilibrium temperature, preset temperature and fluid media (medium)
Determine the specific heat capacity parameter of rock sample to be measured.
The measuring device of rock specific heat capacity parameter provided in this embodiment, by the way that sealing insulation is arranged in shell 100
First cavity 110, the second cavity 120 and temperature inductor 130, and phase is full of inside the first cavity 110 with the second cavity 120
Same fluid media (medium)；Then by the way that the heater 111 inside the first cavity 110 is arranged in being placed on inside the first cavity 110
Fluid media (medium) in rock sample to be measured heated.Heat-insulated valve 140 is provided between first cavity 110 and the second cavity 120,
Controller 200 is separately connected heater 111 and heat-insulated valve 140；Controller 200 is used for before heater 111 is begun to warm up,
After heat-insulated valve 140 is closed in control, and the fluid media (medium) the first cavity 110 inside is heated to preset temperature, control opening every
Thermal valve door 140；Temperature inductor 130 connects controller 200, and the fluid media (medium) inside the first cavity 110 is heated to default temperature
After degree, and before the opening of heat-insulated valve 140, temperature inductor 130 acquires the initial of the fluid media (medium) inside the second cavity 120
Temperature, and after heat-insulated valve 140 opening, acquire the equilibrium temperature of the fluid media (medium) inside the second cavity 120, controller 200
The specific heat capacity parameter of rock sample to be measured is determined according to initial temperature, equilibrium temperature, preset temperature and fluid media (medium).In this way, passing through
The temperature change for monitoring two inside cavity fluid media (medium)s, in conjunction with the property parameters of fluid media (medium), can be calculated indirectly to
The specific heat capacity parameter for surveying rock sample does not need selection and processing measurement compared with the existing mode for directlying adopt sensing chip measurement
Surface avoids the measurement error of measurement surface instability strip, improves the precision of rock specific heat capacity parameter measurement.Also,
The device does not require the shape and size of rock sample to be measured, strong applicability and easy to operate, improves the measurement of rock specific heat capacity
The convenience of process.
Fig. 2 is the structure chart of the measuring device of the rock specific heat capacity parameter shown in another exemplary embodiment of the present invention.
As shown in Fig. 2, being exemplary in the present invention one the present embodiment provides a kind of measuring device of rock specific heat capacity parameter
On the basis of implementing the measuring device of rock specific heat capacity parameter exemplified, further comprise controller concrete composition unit, every
Thermosphere, fluid Bottle 20, chamber door 9 etc..The device specifically includes:
Controller and shell, and be arranged in intracorporal first cavity of shell, the second cavity and temperature inductor；.First chamber
Body and the second cavity are sealing heat insultating cavity；First cavity and the second inside cavity are full of identical fluid media (medium)；Wherein, to
Rock sample 6 is surveyed to be placed in the fluid media (medium) of the first inside cavity；Having heaters is set in the first cavity, and being used for will be in the first cavity
The fluid media (medium) in portion is heated to preset temperature；Heat-insulated valve 4 is provided between first cavity and the second cavity, controller connects respectively
Connect heater and heat-insulated valve 4；Controller is used for before heater is begun to warm up, and heat-insulated valve 4 is closed in control；Controller is also
After fluid media (medium) for portion in the first cavity is heated to preset temperature, heat-insulated valve 4 is opened in control；Temperature inductor connection
Controller, when the fluid media (medium) for portion in the first cavity is heated to preset temperature, the fluid of the second inside cavity of acquisition is situated between
The initial temperature of matter, and after heat-insulated valve 4 opening, the equilibrium temperature of the fluid media (medium) of the second inside cavity is acquired, it will be initial
Temperature and equilibrium temperature are sent to controller；Controller is also used to receive the initial temperature of temperature inductor transmission and stablizes temperature
It spends, and determines the specific heat capacity parameter of rock sample 6 to be measured according to initial temperature, equilibrium temperature, preset temperature and fluid media (medium).
In the present embodiment, by the way that the first cavity, the second cavity and the temperature inductor of sealing insulation are arranged in shell,
And identical fluid media (medium) is full of in the first cavity and the second inside cavity；Then pass through the heating in the portion in the first cavity that is arranged
Device heats the rock sample to be measured 6 in the fluid media (medium) for being placed on the first inside cavity.Between first cavity and the second cavity
It is provided with heat-insulated valve 4, controller is separately connected heater and heat-insulated valve 4；Controller is used to begin to warm up it in heater
Before, after heat-insulated valve 4 is closed in control, and the fluid media (medium) in portion is heated to preset temperature in the first cavity, control is opened heat-insulated
Valve 4；Temperature inductor connects controller, after the fluid media (medium) in portion is heated to preset temperature in the first cavity, temperature sense
Device acquires the initial temperature of the fluid media (medium) of the second inside cavity, and after heat-insulated valve 4 opening, the second inside cavity of acquisition
The equilibrium temperature of fluid media (medium), controller determine rock to be measured according to initial temperature, equilibrium temperature, preset temperature and fluid media (medium)
The specific heat capacity parameter of sample 6.In this way, by the temperature change of two inside cavity fluid media (medium)s of monitoring, in conjunction with the category of fluid media (medium)
Property parameter, the specific heat capacity parameter of rock sample 6 to be measured can be calculated indirectly, with it is existing directly adopt sensing chip measurement mode
It compares, does not need selection and processing measurement surface, avoid the measurement error of measurement surface instability strip, improve rock ratio
The precision of thermal capacitance parameter measurement.Also, the device does not require the shape and size of rock sample 6 to be measured, strong applicability and operation
Simply, the convenience of rock specific heat capacity measurement process is improved.
Specifically, as shown in Fig. 2, can 2 can be the thick can 2 in metal material, such as Fig. 2, in can 2
Rubber foot prop 11 has can be set in bottom, is used to support and fixes whole device.Optionally, it is provided with thermal insulation layer in can 2,
Thermal insulation layer surrounds the first cavity and the second cavity respectively, the temperature for completely cutting off between the first cavity and the second cavity, and every
Temperature outside exhausted first cavity, the second cavity and can 2.Thermal insulation layer can be urethane foamed material 3, urethane foamed material
3 thermal insulations are good, draw materials at low cost, are conducive to the specific heat capacity parameter measurement of a large amount of rock samples 6 to be measured.It therefore, can be in can 2
Urethane foamed material is filled between portion's interlayer, play with extraneous heat-blocking action, and between the first cavity and the second cavity into
Row is heat-insulated.
Optionally, fluid media (medium) can be gas, such as carbon dioxide gas, and gas fluidity is good, and materials are convenient, energy
Commutative properties are stablized, and more accurate temperature change parameter can be provided.It is left inside the device by taking fluid media (medium) is gas as an example
First cavity of side is rock sample chamber 5, and second cavity on right side is air chamber 15.Connect two cavitys is heat-insulated valve 4, heat-insulated
Valve 4 can completely cut off the gas of two inside cavities when closing, and the heat transfer for having heat insulating function to prevent two cavitys.Temperature sense
Answering device 14 may include two temperature measurement probes, be separately positioned on two inside cavities.Temperature inductor 14 can be surveyed in real time
The temperature of two inside cavities is measured, measurement data can be sent to controller by data line 10 and carry out data processing, controller
It can be computer, measurement data can be shown by computer screen.
Optionally, the shape of rock sample 6 to be measured is sheet.For example, rock sample 6 to be measured is processed into slab-like, be conducive to be measured
Rock sample 6 carries out heat with the fluid media (medium) of surrounding and exchanges.
Optionally, heater is resistive heater 8.As shown in Fig. 2, it is provided with resistive heater 8 in rock sample chamber 5, it is to be measured
Rock sample 6 is hung in rock sample chamber 5 by the suspension of heat-resisting filament 7.
Optionally, chamber door 9 is provided on the first cavity.As shown in Fig. 2, 5 top of rock sample chamber is chamber door 9, convenient for beating
Room of beginning to speak takes rock sample 6, can also be used to the upper end of fixing heat-resistant filament 7.
Optionally, which can also include: device gate 11, and the setting of device gate 11 is in 5 upside of rock sample chamber.As shown in Fig. 2,
Device gate 11 is easy to open door for fixing device gate 11 in the upper left side of the device, hinge 12.
Optionally, further includes: fluid Bottle 20；Fluid Bottle 20 is connected to the second cavity, is used for the second cavity
Inside is filled with fluid media (medium).Specifically, as shown in Fig. 2, the second cavity can make air chamber 15, in the upper right side of air chamber 15,
The first pipeline 19 and extraneous connection can be used, when by thermal insulation layer, installing a vent valve 18 can when vent valve 18 is closed
It is exchanged with completely cutting off in air chamber 15 with extraneous matter and energy.Air chamber 15 is also accommodated with the second pipeline 16 with fluid simultaneously
Bottle 20 is connected, and intake valve 17 can be installed on the second pipeline 16, for controlling fluid Bottle 20 to inside air chamber 15
It is filled with the switch of fluid media (medium).
Optionally, controller further include: pre-control unit, pre-control unit connect heat-insulated valve 4, in adding thermal resistance
Before silk 8 is begun to warm up, heat-insulated valve 4 is opened, so that the fluid of the fluid media (medium) of the first inside cavity and the second inside cavity
Medium temperature having the same.
In the present embodiment, in order to guarantee the accuracy of temperature transition and measurement process, can start in resistive heater 8
Before heating, is allowed in air chamber 15 (the second cavity) and rock sample chamber 5 (the first cavity) first and keep identical temperature.Actually answering
In, as shown in Fig. 2, rock sample 6 to be measured is fixed in chamber door 9 using heat-resisting filament 7 first, so that rock sample to be measured 6 is hung
In rock sample chamber 5.Assuming that is held in fluid Bottle 20 is carbon dioxide gas, before resistive heater 8 is begun to warm up,
Vent valve 18 is opened, heat-insulated valve 4 is opened, later, identical air can be full of inside air chamber 15 and rock sample chamber 5.Then it beats
Drive air valve 17 into so that carbon dioxide gas displacement goes out 5 inner air of air chamber 15 and rock sample chamber, to air displacement after,
Carbon dioxide gas can be full of inside air chamber 15 and rock sample chamber 5, and temperature is identical.Then vent valve 18 and intake valve are turned off
17, and heat-insulated valve 4 is closed before resistive heater 8 is begun to warm up.
Optionally, controller includes: the first computing unit, for being calculated according to preset temperature and equilibrium temperature in heat insulation valve
First thermal change amount of the intracorporal fluid media (medium) of the first chamber after door 4 is opened；Second computing unit, for according to initial temperature and
Equilibrium temperature calculates the second thermal change amount of the intracorporal fluid media (medium) of the second chamber after heat-insulated valve 4 opening；Determination unit, really
Order member is separately connected the first computing unit and the second computing unit, and determination unit is used to receive that the first computing unit to send the
The second thermal change amount that one thermal change amount and the second computing unit are sent, and according to the first thermal change amount and the second heat
The ratio thermal parameter of variable quantity and fluid media (medium) determines the specific heat capacity parameter of rock sample 6 to be measured.
In the present embodiment, controller can be used for data processing and equipment control.The controller includes at least: the first meter
Calculate unit, the second computing unit and determination unit, wherein the first computing unit calculates the first cavity after heat-insulated valve 4 opening
First thermal change amount of interior fluid media (medium)；Second computing unit, for calculating after heat-insulated valve 4 opening in the second cavity
Fluid media (medium) the second thermal change amount；Determination unit, is separately connected the first computing unit and the second computing unit, and according to
First thermal change amount and the second thermal change amount and the ratio thermal parameter of fluid media (medium) determine the specific heat capacity ginseng of rock sample 6 to be measured
Number.
In practical applications, as shown in Fig. 2, controller can be realized using computer 13, such as can be using notes
This computer etc..Carbon dioxide gas is full of inside air chamber 15 and rock sample chamber 5, and temperature is identical, and closes vent valve 18
After intake valve 17, the heat-insulated valve 4 of closing, resistive heater 8 is opened by computer 13, using resistive heater 8 to rock sample
Chamber 5 carries out being heated to preset temperature.After temperature in rock sample chamber 5 is stablized, resistive heater 8 is closed.Then, temperature inductor 14
The temperature for measuring the fluid media (medium) of the second inside cavity at this time is sent to computer as initial temperature, and by the initial temperature
13.Later, computer 13 controls heat-insulated valve 4 and opens, and so that air chamber 15 and rock sample chamber 5 is carried out heat flow transmitting, to two chambers
After body temperature is stablized, the final temperature after the measurement of temperature inductor 14 is stablized is sent out as equilibrium temperature, and by the equilibrium temperature
Give computer 13.Computer 13 calculates the specific heat capacity parameter of rock sample 6 to be measured with the following method:
The specific heat capacity parameter Cg of carbon dioxide gas is obtained first, the volume Vg1 of carbon dioxide gas in rock sample chamber 5, to
Survey the volume V2 of rock sample 6, the carbon dioxide gas volume Vg2 in air chamber 15.The acquisition modes of above-mentioned data can be obtained locally
It takes, can also be obtained by network in server, the present embodiment does not limit this.
Then, the first computing unit calculates the first thermal change amount using following formula
Formula one: Q1=Cg×Vg1×(T1-T3)
Second computing unit calculates the second thermal change amount using following formula
Formula two: Q2=Cg×Vg2×(T3-T2)
Then the thermal change amount of rock sample 6 to be measured is
Formula three: Q3=C0×V2×(T1-T3)
And formula four: Q is met according to actual scene2=Q1+Q3,
Wherein, C0Indicate the specific heat capacity parameter of rock sample 6 to be measured, Q1Indicate the first thermal change amount, Q2Indicate that the second heat becomes
Change amount, Q3Indicate the thermal change amount of rock sample 6 to be measured, T1Indicate preset temperature, T2Indicate initial temperature, T3Indicate equilibrium temperature.
The specific heat capacity parameter C of rock sample 6 to be measured can be calculated to formula four in simultaneous above-mentioned formula one0。
The measuring device of hypotonic tight rock specific heat capacity parameter provided in this embodiment, it is close by being arranged in can 2
The air chamber 15 being insulated and rock sample chamber 5 and temperature inductor are sealed, and is full of identical gas inside air chamber 15 and rock sample chamber 5
Medium；Then by the way that the resistive heater 8 inside rock sample chamber 5 is arranged in in the gas medium being placed on inside rock sample chamber 5
Rock sample 6 to be measured is heated.Heat-insulated valve 4 is provided between rock sample chamber 5 and air chamber 15, computer 13 is separately connected heating electricity
Hinder silk 8 and heat-insulated valve 4；Computer 13 is used for before resistive heater 8 is begun to warm up, the heat-insulated valve 4 of control closing, and
When gas medium inside rock sample chamber 5 is heated to preset temperature, heat-insulated valve 4 is opened in control；Temperature inductor connects computer
13, after the gas medium inside rock sample chamber 5 is heated to preset temperature, acquire the initial temperature of the gas medium inside air chamber 15
Degree, and after heat-insulated valve 4 opening, the equilibrium temperature of the gas medium inside air chamber 15 is acquired, computer 13 is according to initial
Temperature, equilibrium temperature, preset temperature and gas medium determine the specific heat capacity parameter of rock sample 6 to be measured.In this way, passing through monitoring two
Rock sample 6 to be measured can be calculated in conjunction with the property parameters of gas medium in the temperature change of inside cavity gas medium indirectly
Specific heat capacity parameter does not need selection and processing measurement surface, avoids compared with the existing mode for directlying adopt sensing chip measurement
The measurement error of measurement surface instability strip, improves the precision of hypotonic tight rock specific heat capacity parameter measurement.Also, it should
Device does not require the shape and size of rock sample 6 to be measured, strong applicability and easy to operate, improves hypotonic tight rock specific heat
Hold the convenience of measurement process.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
Describe in detail it is bright, it should be understood that the above is only a specific embodiment of the present invention, the guarantor being not intended to limit the present invention
Range is protected, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection scope of invention.
Claims (10)
1. a kind of measuring device of hypotonic tight rock specific heat capacity parameter characterized by comprising controller and shell, and
It is arranged in intracorporal first cavity of the shell, the second cavity, temperature inductor and is set to first cavity and described second
Heat-insulated valve between cavity；Wherein, first cavity and second inside cavity are full of identical fluid media (medium)；
Rock sample to be measured is placed in the fluid media (medium) of first inside cavity；Having heaters is set in first cavity, is used
In the fluid media (medium) of first inside cavity is heated to preset temperature；
The controller is separately connected the heater and the heat-insulated valve, for before the heater is begun to warm up,
The heat-insulated valve is closed in control, and after the fluid media (medium) of first inside cavity is heated to the preset temperature, control
System opens the heat-insulated valve；
The temperature inductor connects the controller, described pre- for being heated in the fluid media (medium) of first inside cavity
If when temperature, acquiring the initial temperature of the fluid media (medium) of second inside cavity, and after the heat-insulated valve is opened, acquisition
The initial temperature and the equilibrium temperature are sent to the control by the equilibrium temperature of the fluid media (medium) of second inside cavity
Device processed；
The controller is determined according to the initial temperature, the equilibrium temperature, the preset temperature and the fluid media (medium)
The specific heat capacity parameter of the rock sample to be measured.
2. the apparatus according to claim 1, which is characterized in that the controller includes:
First computing unit, for calculating the institute after the heat-insulated valve is opened according to the preset temperature and the equilibrium temperature
State the first thermal change amount of the intracorporal fluid media (medium) of the first chamber；
Second computing unit, for calculating the institute after the heat-insulated valve is opened according to the initial temperature and the equilibrium temperature
State the second thermal change amount of the intracorporal fluid media (medium) of the second chamber；
Determination unit is separately connected first computing unit and second computing unit, and the determination unit is for receiving
Second heat that the first thermal change amount and second computing unit that first computing unit is sent are sent
Variable quantity, and according to the first thermal change amount and the second thermal change amount and the ratio thermal parameter of the fluid media (medium)
Determine the specific heat capacity parameter of the rock sample to be measured.
3. the apparatus according to claim 1, which is characterized in that the controller includes:
Pre-control unit, the pre-control unit connects the heat-insulated valve, for beating before the heater is begun to warm up
The heat-insulated valve is opened, so that the fluid media (medium) of first inside cavity and the fluid media (medium) of second inside cavity have
Identical temperature.
4. the apparatus according to claim 1, which is characterized in that be provided with thermal insulation layer, the thermal insulation layer point in the shell
First cavity and second cavity are not surrounded, the temperature for completely cutting off between first cavity and second cavity
Degree, and the temperature of isolation first cavity, second cavity and the hull outside.
5. device according to claim 4, which is characterized in that the thermal insulation layer is urethane foamed material.
6. device according to any one of claim 1 to 5, which is characterized in that the fluid media (medium) is gas.
7. device according to any one of claim 1 to 5, which is characterized in that the shape of the rock sample to be measured is sheet.
8. device according to any one of claim 1 to 5, which is characterized in that first cavity and second chamber
Body is sealing heat insultating cavity.
9. device according to any one of claim 1 to 5, which is characterized in that further include: fluid Bottle；The stream
Body Bottle is connected to second cavity, for being filled with the fluid media (medium) to second inside cavity.
10. device according to any one of claim 1 to 5, which is characterized in that be provided with chamber on first cavity
Door.
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