CN207610963U - Device for measuring super-pressure gas reservoir seepage flow characteristics - Google Patents
Device for measuring super-pressure gas reservoir seepage flow characteristics Download PDFInfo
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- CN207610963U CN207610963U CN201721345381.2U CN201721345381U CN207610963U CN 207610963 U CN207610963 U CN 207610963U CN 201721345381 U CN201721345381 U CN 201721345381U CN 207610963 U CN207610963 U CN 207610963U
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Abstract
The utility model embodiment provides a kind of device for measuring super-pressure gas reservoir seepage flow characteristics.The utility model is used to measure the device of super-pressure gas reservoir seepage flow characteristics, and the confining pressure of gas reservoir, gas reservoir pressure and temperature, measure the seepage flow characteristics of rock core, effective, reliable foundation is provided to develop the gas reservoir where the rock core where simulation core may be implemented.
Description
Technical field
The utility model embodiment is related to oil, natural gas extraction technology, more particularly to a kind of for measuring ultra high pressure gas
Hide the device of seepage flow characteristics.
Background technology
The occurrence types of natural gas are varied, and occurrence status of the industrialness natural gas in underground is more more than oil.Except trip
There are a large amount of oil soluble gas and Water Soluble Gas, adsorbed gas and solid-state gas hydrate etc. from outside the natural gas of state.Therefore, trip is removed
Also has water-soluble gas reservoir, water seal gas reservoir, DAMAGE OF TIGHT SAND GAS RESERVOIRS, air water platform object gas reservoir etc. outside the normal gas pools formed from gas.
The exploration and development of deep layer, ultra deep carbonate gas reservoirs is by attention both domestic and external, deep layer, ultra deep day in recent years
Right gas resource and rich reserves, exploitation deep layer, ultra deep carbonate gas reservoirs are to increase the important way of petroleum gas total output
Diameter, to ensureing that energy security has great importance.
However, since carbonate gas reservoirs buried depth is big, reservoir rock bears the immense pressure of top rock, at rock
It is also high in the Fluid pressure of compaction state, gas reservoir, so, deep layer, ultra deep carbonate gas reservoirs development difficulty are big, such as Sichuan
Gst gas reservoirs, confining pressure reaches 135MPa, gas reservoir pressure reaches 57MPa, 147 DEG C of temperature.Deep layer, ultra deep carbonate gas reservoirs
Percolation law has particularity, different from normal gas pools.In order to realize the Efficient Development of this kind of gas reservoir, need to study its seepage flow rule
Rule and seepage flow characteristics, and then effectively develop such gas reservoir.
Utility model content
The utility model embodiment provides a kind of device for measuring super-pressure gas reservoir seepage flow characteristics, to realize simulation rock
The confining pressure of gas reservoir, gas reservoir pressure and temperature, measure the seepage flow characteristics of rock core, are provided to develop the gas reservoir where the rock core where the heart
Effectively, reliable foundation.
In a first aspect, the utility model embodiment provides a kind of device measuring seepage flow characteristics for super-pressure gas reservoir, packet
It includes：
Core holding unit, high pressure confining pressure pump, pressure liquid pump, high pressure gas pump, high-pressure air-water separation with metering unit, with
And data processing module；
The core holding unit includes clamping part, using rock core sleeve, shell and heating muff made of perfluoroelastomer, institute
It states clamping part and the rock core sleeve is set in the shell, form the first chamber between the clamping part and the rock core sleeve
Body, first cavity form the second cavity, the heating mantle for rock core to be arranged between the rock core sleeve and the shell
Jacket casing is located at the hull outside；
The high pressure confining pressure pump to the rock core by second cavity for providing confining pressure, the confining pressure and the rock
The confining pressure of the heart in the earth formation is equal, and the pressure liquid pump and high pressure gas pump to the rock core for providing the rock core on ground
Gas reservoir pressure in layer, the heating muff are used to provide the temperature of the rock core in the earth formation to the rock core；
The high-pressure air-water separation is used under high pressure with metering unit, to being carried out from the fluid of the rock core output
It measures, and measurement result is sent to the data processing module；
The data processing module is used to measure the seepage flow characteristics of the rock core according to the measurement result；
Wherein, the clamping part is using clamping part made of super precipitation stainless steel material, and the shell is using super
Shell made of grade precipitation stainless steel material.
Optionally, described device further includes fluid circuit, one end of the fluid circuit respectively with the pressure liquid pump
Output end connected with the output end that the high pressure gas pumps, the other end of the fluid circuit is connect with the clamping part, and
It is connected with first cavity.
Optionally, the high-pressure air-water separation and metering unit include high pressure visable stereometer buret, back-pressure valve and high pressure
Backpressure pump；
One end of the high pressure visable stereometer buret is connect with the fluid output end of the core holding unit, the other end with
The back-pressure valve connection, the back-pressure valve are connect with the high pressure backpressure pump, and the back-pressure valve is used for the high pressure backpressure pump
Back pressure, gas reservoir pressure phase of the back pressure with the rock core in the earth formation are provided to the fluid output end of the core holding unit
Deng.
Optionally, described device further includes first pressure sensor and first flowmeter, the first pressure sensor point
It is not connect with the high pressure visable stereometer buret and the data processing module, the first flowmeter is arranged in the back pressure
Between valve and the high pressure visable stereometer buret.
Optionally, described device further includes the visual stereometer buret of low pressure, second pressure sensor and second flowmeter, institute
It states the visual stereometer buret of low pressure to connect with the back-pressure valve, the second pressure sensor and the second flowmeter are set respectively
It sets between the visual stereometer buret of the low pressure and the data processing module.
Optionally, described device further includes temperature controller and temperature sensor, one end of the temperature controller and the heating mantle
Cylinder connection, the other end of the temperature controller connect with the temperature sensor, the temperature sensor also with the data processing
Module connects.
Optionally, described device further includes third pressure sensor, the 4th pressure sensor and the 5th pressure sensor, institute
State the fluid circuit that third pressure sensor is connected between the pressure liquid pump and high pressure gas pump, the 4th pressure
Force snesor is connected to the fluid circuit between the high pressure gas pump and the clamping part, the 5th pressure sensor connection
At the fluid output end of the core holding unit, the third pressure sensor, the 4th pressure sensor and the 5th pressure sensing
Device is also connect with the data processing module；
The high pressure confining pressure pump, the pressure liquid pump, the high pressure gas pump and the high pressure backpressure pump also with it is described
Data processing module connects.
Second aspect, the utility model embodiment provide a kind of using as above-mentioned first aspect any one of them device is real
The method for now measuring seepage flow characteristics, including：Obtain rock core confining pressure in the earth formation, gas reservoir pressure and temperature；Pass through the high pressure
Confining pressure is pumped provides the confining pressure to the rock core in the core holding unit；Pass through the pressure liquid pump and the height
Gas pump is pressed to provide the gas reservoir pressure to the rock core；By the heating muff temperature is provided to the rock core；Root
High pressure phase water yield and high pressure phase gas production are obtained according to the high pressure visable stereometer buret；It is produced according to the high pressure phase
Water and the high pressure phase gas production measure the seepage flow characteristics of the rock core.
Optionally, the method further includes：According to the visual stereometer buret of the low pressure obtain periods of low pressure water yield and
Periods of low pressure gas production；The seepage flow that the rock core is measured according to the periods of low pressure water yield and the periods of low pressure gas production is special
Sign.
Optionally, described to be pumped to described in the rock core offer in the core holding unit by the high pressure confining pressure
Confining pressure, including：It is pumped to second cavity by the high pressure confining pressure and injects gas so that gas is full of second cavity；
It is pumped to second cavity by the high pressure confining pressure and injects liquid, the liquid passes through described for substituting the gas
Liquid provides the confining pressure to the rock core in the core holding unit.
The utility model embodiment is used to measure the device of super-pressure gas reservoir seepage flow characteristics, passes through core holding unit 1, high pressure
Confining pressure pump 2, pressure liquid pump 3, high pressure gas pump 4, high-pressure air-water separation and metering unit 5 and data processing module 6, it is real
The confining pressure of gas reservoir, gas reservoir pressure and temperature, measure the seepage flow characteristics of rock core, to develop where the rock core where existing simulation core
Gas reservoir provides effective, reliable foundation.Also, due to the high temperature resistant and high pressure resistant property of the device of the present embodiment, the present embodiment
Device can measure deep layer, ultra deep gas reservoir seepage flow characteristics, provided for exploitation deep layer, ultra deep gas reservoir effective, reliable
Foundation.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram for the device embodiment one that the utility model is used to measure super-pressure gas reservoir seepage flow characteristics；
Fig. 2 is the structural schematic diagram for the device embodiment two that the utility model is used to measure super-pressure gas reservoir seepage flow characteristics；
Fig. 3 is the structural schematic diagram for the device embodiment three that the utility model is used to measure super-pressure gas reservoir seepage flow characteristics；
Fig. 4 is the structural schematic diagram of the core holding unit of the utility model；
Fig. 5 is that the utility model realizes the embodiment of the method one for measuring super-pressure gas reservoir seepage flow characteristics using above-mentioned apparatus
Flow chart；
Fig. 6 is that the utility model realizes the embodiment of the method two for measuring super-pressure gas reservoir seepage flow characteristics using above-mentioned apparatus
Flow chart.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts belong to
The range of the utility model protection.
Fig. 1 is the structural schematic diagram for the device embodiment one that the utility model is used to measure super-pressure gas reservoir seepage flow characteristics,
As shown in Figure 1, the device for measuring seepage flow characteristics of the present embodiment may include：Core holding unit 1, high pressure confining pressure pump 2, height
Press liquid pump 3, high pressure gas pump 4, high-pressure air-water separation and metering unit 5 and data processing module 6.
The core holding unit 1 may include clamping part 11, using rock core sleeve made of perfluoroelastomer 12, shell 13 and add
Hot jacket cylinder 14, the clamping part 11 and the rock core sleeve 12 are set in the shell 13, the clamping part 11 and the rock core sleeve 12 it
Between form the first cavity 15, which forms second for rock core to be arranged between the rock core sleeve 12 and the shell 13
Cavity 16, the heating muff 14 are set in 13 outside of shell.
Wherein, there is pressure-resistant high temperature resistance attribute using rock core sleeve made of perfluoroelastomer 12.
High pressure confining pressure pump 4 to rock core by second cavity 16 for providing confining pressure, and the confining pressure and rock core are in the earth formation
Confining pressure it is equal, the pressure liquid pump 3 and high pressure gas pump 4, should for providing rock core gas reservoir pressure in the earth formation to rock core
Heating muff 14 is used to provide the temperature of rock core in the earth formation to rock core.
High-pressure air-water is detached to be used under high pressure with metering unit 5, to being measured from the fluid of rock core output, and
Measurement result is sent to the data processing module 6.
Wherein, fluid includes gas and liquid.
The data processing module 6 is used to measure the seepage flow characteristics of rock core according to measurement result.
Wherein, which is using clamping part made of super precipitation stainless steel material, such as the stainless steels of 17-4PH
At clamping part, which is using shell made of super precipitation stainless steel material, such as shell made of 17-4PH.The folder
The compressive resistance of portion and the shell is held up to 1300MPa or more.
Specifically, can be sampled on stratum, rock core is obtained, such as carry out to deep layer, ultra deep carbonate gas reservoirs
Sampling obtains rock core.And measure confining pressure, gas reservoir pressure and the temperature of rock core in the earth formation.The rock core that sampling is obtained is placed
In the first cavity 15 of the core holding unit 1, it is fixed by clamping part 11.For the seepage flow characteristics of rock core in gas reservoir,
Using the physical condition on stratum where the unit simulation rock core of the present embodiment, and then to the seepage flow of rock core spy under the physical condition
Sign is studied.Specifically, the confining pressure of rock core in the earth formation is provided to rock core by the second cavity 16 using high pressure confining pressure pump 4,
There is provided rock core gas reservoir pressure in the earth formation to rock core using pressure liquid pump 3 and high pressure gas pump 4, using heating muff 14 to
Rock core provides rock core temperature in the earth formation so that the physical condition of the rock core local environment in the device of the present embodiment with
Stratum is identical, and then under high pressure by high-pressure air-water separation and metering unit 5, to being surveyed from the fluid of rock core output
Amount, and measurement result is sent to the data processing module 6, seepage flow characteristics are determined according to measurement result so that the seepage flow of measurement
Feature provides effective, reliable foundation closer to actual conditions, to develop the gas reservoir where the rock core.
The present embodiment passes through core holding unit 1, high pressure confining pressure pump 2, pressure liquid pump 3, high pressure gas pump 4, high-pressure air-water
Separation and metering unit 5 and data processing module 6, the confining pressure of gas reservoir, gas reservoir pressure and temperature where realizing simulation core,
The seepage flow characteristics for measuring rock core, effective, reliable foundation is provided to develop the gas reservoir where the rock core.Also, due to this implementation
The high temperature resistant and high pressure resistant property of the device of example, the device of the present embodiment can measure deep layer, ultra deep gas reservoir seepage flow characteristics,
Effective, reliable foundation is provided for exploitation deep layer, ultra deep gas reservoir.
The device of the application can be 190MPa with simulated determination pressure, and deep layer that temperature is 200 DEG C, ultra deep gas reservoir ooze
Flow feature.
Fig. 2 is the structural schematic diagram for the device embodiment two that the utility model is used to measure super-pressure gas reservoir seepage flow characteristics,
On the basis of embodiment shown in Fig. 1, as shown in Fig. 2, the device for being used to measure seepage flow characteristics can also include fluid circuit,
One end of the fluid circuit is connect with the output end of the output end of the pressure liquid pump 3 and high pressure gas pump 4 respectively, the fluid
The other end of pipeline is connect with the clamping part 11, and is connected with first cavity 15.
Specifically, a kind of achievable mode, as shown in Fig. 2, the fluid circuit includes vertical fluid circuit (71,72 and 73)
With lateral fluid pipeline 74, lateral fluid pipeline 74 respectively with vertical fluid circuit 71, vertical fluid circuit 72 and vertical fluid
Pipeline 73 connects, and 71 one end of vertical fluid circuit is connect with pressure liquid pump 3, for importing laterally the liquid of pressure liquid pump
Fluid circuit 74,72 one end of vertical fluid circuit are connect with high pressure gas pump 4, and the gas for pumping high pressure gas imports laterally
One end of fluid circuit 74, vertical fluid circuit 73 is connect with clamping part 11, for by lateral fluid pipeline 74 liquid and/
Or gas imports in the first cavity 15.The connection of specific difference pipeline can be realized by pipeline connecting parts.The piping connection
The explosion-proof interfaces of 30000psi specifically may be used in part.
The achievable mode of another kind, which can also be the fluid circuit as shown in Figure 2 of integrated molding
Shape.
It should be understood that the shape of fluid circuit can also be flexibly arranged according to demand, for example, pressure liquid pump and
When the position difference that the position of high pressure gas pump is pumped with pressure liquid pump shown in Fig. 2 and high pressure gas, point of the fluid circuit
Cloth form may be other shapes, be imported liquid and/or gas in the first cavity 15 with realizing.
Optionally, the disposing way of above-mentioned core holding unit 1 may include standing up, put upside down and keeping flat, can be according to reality
Border demand is flexibly arranged.
The present embodiment passes through core holding unit 1, high pressure confining pressure pump 2, pressure liquid pump 3, high pressure gas pump 4, high-pressure air-water
Separation and metering unit 5 and data processing module 6, the confining pressure of gas reservoir, gas reservoir pressure and temperature where realizing simulation core,
The seepage flow characteristics for measuring rock core, effective, reliable foundation is provided to develop the gas reservoir where the rock core.Also, due to this implementation
The high temperature resistant and high pressure resistant property of the device of example, the device of the present embodiment can measure deep layer, ultra deep gas reservoir seepage flow characteristics,
Effective, reliable foundation is provided for exploitation deep layer, ultra deep gas reservoir.Such as Deep Carbonate Rocks reservoir temperature, pressure can be simulated
Power condition carries out Properties of Water-gas Flowing Through Porous Media experiment under Deep Carbonate Rocks reservoir temperature, pressure condition.
Fig. 3 is the structural schematic diagram for the device embodiment three that the utility model is used to measure super-pressure gas reservoir seepage flow characteristics,
On the basis of embodiment shown in Fig. 2, as shown in figure 3, the high-pressure air-water separation of the device by measuring seepage flow characteristics is with based on
Amount component 5 can specifically include high pressure visable stereometer buret 51, back-pressure valve 52 and high pressure backpressure pump 53.
One end of the high pressure visable stereometer buret 51 is connect with the fluid output end of the core holding unit 1, another
End is connect with the back-pressure valve 52, and the back-pressure valve 52 is connect with the high pressure backpressure pump 53, the back-pressure valve 52 and the height
Press pump 53 is pushed back for providing back pressure to the fluid output end of the core holding unit 1, the back pressure is with the rock core on stratum
In gas reservoir pressure it is equal.
Specifically, the lower end output of water and/or gas in rock core by core holding unit 1, visual by high-pressure air-water
Stereometer buret 51 can detach the water of the lower end output of core holding unit 1 and/or gas, and measure high pressure phase output gas
The volume of body and/or water.High pressure backpressure pump 53 generates certain pressure to control back-pressure valve 52, to keep core holding unit 1
Bottom pressure of the pressure at fluid output end not less than gas well where gas reservoir.
Wherein, the sectional area of the high pressure tubule of high pressure visable stereometer buret 51 is little, and precision, microflowmeter may be implemented
Amount.
The device of the present embodiment can also include first pressure sensor 81 and first flowmeter 91, and the first pressure passes
Sensor 81 is connect with the high pressure visable stereometer buret 51 and the data processing module 6 respectively, the first flowmeter 91
It is arranged between the back-pressure valve 52 and the high pressure visable stereometer buret 51.
Specifically, first pressure sensor 81 can also be arranged to measure pressure, and measurement data is reported at data
Manage module 6.First flowmeter 91 is set to measure the flow of the output gas of high pressure phase, and will be at measurement data reported data
Manage module 6.The seepage flow characteristics of rock core are determined with further auxiliary.
The device of the present embodiment can also include the visual stereometer buret 10 of low pressure, second pressure sensor 82 and second
Gauge 92, the visual stereometer buret of the low pressure 10 are connect with the back-pressure valve 52, the second pressure sensor 82 and described
Second flowmeter 92 is separately positioned between the visual stereometer buret 10 of the low pressure and the data processing module 6.
Specifically, the visual stereometer buret 10 of low pressure can also be arranged, the visual stereometer buret of the low pressure 10 can measure
The volume of periods of low pressure output gas and/or water.The seepage flow characteristics of rock core are determined with further auxiliary.
The device of the present embodiment can also include temperature controller 20 and temperature sensor 21, one end of the temperature controller 20 and institute
The connection of heating muff 14 is stated, the other end of the temperature controller 20 is connect with the temperature sensor 21, the temperature sensor 21
Also it is connect with the data processing module 6.
Specifically, the temperature setting of heating muff can be rock according to the instruction of data processing module 6 by the temperature controller 20
The temperature on stratum where the heart, temperature sensor 21 are used to acquire the real time temperature of heating muff 14, and send measured data to
Data processing module 6, as the feedback that temperature is adjusted, so that data processing module 6 is in time by temperature controller by the temperature of rock core
The temperature on stratum where degree is heated to rock core.
The device of the present embodiment can also include that third pressure sensor 83, the 4th pressure sensor 84 and the 5th pressure pass
Sensor 85, the third pressure sensor 83 are connected to the fluid hose between the pressure liquid pump 3 and high pressure gas pump 4
Road, the 4th pressure sensor 84 is connected to the fluid circuit between the high pressure gas pump 4 and the clamping part 11, described
5th pressure sensor 85 is connected to the fluid output end of the core holding unit 1, and the third pressure sensor the 83, the 4th is pressed
Force snesor 84 and the 5th pressure sensor 85 are also connect with the data processing module 6；
High pressure confining pressure pump 2, the pressure liquid pump 3, high pressure gas pump 4 and the high pressure backpressure pump 53 also with
The data processing module 6 connects.
Specifically, data processing module obtains the upper of the gas reservoir pressure of above-mentioned each pressure sensor, tracking rock core in real time
It rises and declines, by controlling high pressure confining pressure pump 2, the pressure liquid pump 3, high pressure gas pump 4 and the high pressure backpressure pump
53, keep the stress of rock core and gas reservoir condition same or similar.
Optionally, multiple valves can also be arranged in the device of the present embodiment, as shown in figure 3, in the output of pressure liquid pump 3
End setting valve 501, high pressure gas pump 4 output end setting valve 502, on lateral fluid pipeline 74 be arranged valve 503,
Valve 505 is set, in high pressure in the output end setting valve 504 of high pressure confining pressure pump 2, at the fluid output end of core holding unit 1
The output end setting valve 506 of backpressure pump 53 and valve 507 is set in the input terminal of the visual stereometer buret of low pressure 10.
The present embodiment passes through core holding unit 1, high pressure confining pressure pump 2, pressure liquid pump 3, high pressure gas pump 4, high-pressure air-water
Separation and metering unit 5 and data processing module 6, the confining pressure of gas reservoir, gas reservoir pressure and temperature where realizing simulation core,
The seepage flow characteristics for measuring rock core, effective, reliable foundation is provided to develop the gas reservoir where the rock core.Also, due to this implementation
The high temperature resistant and high pressure resistant property of the device of example, the device of the present embodiment can measure deep layer, ultra deep gas reservoir seepage flow characteristics,
Effective, reliable foundation is provided for exploitation deep layer, ultra deep gas reservoir.Such as Deep Carbonate Rocks reservoir temperature, pressure can be simulated
Power condition carries out Properties of Water-gas Flowing Through Porous Media experiment under Deep Carbonate Rocks reservoir temperature, pressure condition.
And device through this embodiment may be implemented the accurate measurement of pressure, flow, fluid volume, and then into promoting the circulation of qi
Volume calculating, gas reservoir saturation computation, gas reservoir viscosity calculations are hidden, to determine that the seepage flow characteristics of gas reservoir, output saturation degree-mutually ooze pass
It is curve.
Fig. 4 is the structural schematic diagram of the core holding unit of the utility model, as shown in figure 4, the core holding unit specifically may be used
With include clamping part 11, using rock core sleeve made of perfluoroelastomer 12, shell 13 and heating muff 14.
Wherein, clamping part 11 can specifically include left plug 111, gasket 112, O-ring 113, seal washer 114, close
Block collar 115, right rock core plug 116, right plug 117, PEEK washers 118, O-ring 119 and small pressure cap 120.
Wherein, O-ring 113 and O-ring 118 can be using O-ring made of perfluoroelastomer.Gasket 112 uses 9 grades
Gasket made of hardness O-ring.
The present embodiment, core holding unit use rock core sleeve 12 and 9 grades of hardness O made of perfluoroelastomer being arranged
Gasket made of type circle can make the core holding unit have high pressure resistant and high-temperature stability.
Fig. 5 is that the utility model realizes the embodiment of the method one for measuring super-pressure gas reservoir seepage flow characteristics using above-mentioned apparatus
Flow chart, as shown in figure 5, the method for the present embodiment may include：
Step 101 obtains rock core confining pressure in the earth formation, gas reservoir pressure and temperature.
Specifically, obtaining actual needs measures the rock core confining pressure in the earth formation of gas reservoir, gas reservoir pressure and temperature.
Its specific implementation can be that will measure the confining pressure obtained, gas reservoir pressure and temperature is input to above-mentioned apparatus
Data processing module 6 so that data processing module 6 obtains rock core confining pressure in the earth formation, gas reservoir pressure and temperature.
Step 102, by the high pressure confining pressure pump in the core holding unit the rock core provide described in enclose
Pressure.
Specifically, the data processing module of above-mentioned apparatus can control high pressure confining pressure pump 2, the rock into core holding unit 1
The heart provides the confining pressure obtained in step 101.
Step 103 is pumped by the pressure liquid pump and the high pressure gas to the rock core offer gas reservoir pressure.
Specifically, the data processing module of above-mentioned apparatus can control pressure liquid pump 3 and high pressure gas pump 4, to rock core
Rock core in clamper 1 provides the gas reservoir pressure obtained in step 101.
Step 104 provides the temperature by the heating muff to the rock core.
Specifically, the data processing module of above-mentioned apparatus can be by heating muff 14, the rock core into core holding unit 1
The temperature obtained in step 101 is provided.
Step 105 obtains high pressure phase water yield and high pressure phase gas production according to the high pressure visable stereometer buret.
Specifically, the data processing module of above-mentioned apparatus can obtain high pressure phase from high pressure visable stereometer buret produces water
Amount and high pressure phase gas production.
Step 106, the seepage flow that the rock core is measured according to the high pressure phase water yield and the high pressure phase gas production
Feature.
Specifically, the data processing module of above-mentioned apparatus can be according to the high pressure phase water yield and the high pressure phase
Gas production measures the seepage flow characteristics of the rock core, such as output saturation degree-mutually oozes relation curve.
The present embodiment, the confining pressure of gas reservoir, gas reservoir pressure and temperature, measure the seepage flow of rock core where simulation core may be implemented
Feature provides effective, reliable foundation to develop the gas reservoir where the rock core.
Fig. 6 is that the utility model realizes the embodiment of the method two for measuring super-pressure gas reservoir seepage flow characteristics using above-mentioned apparatus
Flow chart, as shown in fig. 6, the method for the present embodiment may include：
Step 201 obtains rock core confining pressure in the earth formation, gas reservoir pressure and temperature.
Step 202, by the high pressure confining pressure pump in the core holding unit the rock core provide described in enclose
Pressure.
Step 203 is pumped by the pressure liquid pump and the high pressure gas to the rock core offer gas reservoir pressure；
Step 204 provides the temperature by the heating muff to the rock core.
Step 205 obtains high pressure phase water yield and high pressure phase gas production according to the high pressure visable stereometer buret.
Wherein, the specific explanations explanation of step 201 to step 205 may refer to above-mentioned steps 101 to step 105, herein
It repeats no more.
Step 206 obtains periods of low pressure water yield and periods of low pressure gas production according to the visual stereometer buret of the low pressure.
The data processing module of above-mentioned apparatus can obtain periods of low pressure water yield and low from the visual stereometer buret of low pressure
Pressure stage gas production.
Step 207, according to the high pressure phase water yield, the high pressure phase gas production, the periods of low pressure water yield
The seepage flow characteristics of the rock core are measured with the periods of low pressure gas production.
Specifically, the data processing module of above-mentioned apparatus can be according to high pressure phase water yield, high pressure phase gas production, low
The seepage flow characteristics of rock core described in pressure stage water yield, periods of low pressure gas production and flow measurement, such as output saturation degree-are mutually oozed
Relation curve.
The present embodiment, the confining pressure of gas reservoir, gas reservoir pressure and temperature, measure the seepage flow of rock core where simulation core may be implemented
Feature provides effective, reliable foundation to develop the gas reservoir where the rock core.
It is described to be pumped to positioned at the core holding unit by the high pressure confining pressure in above-mentioned Fig. 5 and embodiment illustrated in fig. 6
In the rock core confining pressure is provided, can specifically include：It is pumped to second cavity by the high pressure confining pressure and injects gas
Body so that gas is full of second cavity；It is pumped to second cavity by the high pressure confining pressure and injects liquid, the liquid
For substituting the gas, and by the liquid confining pressure is provided to the rock core in the core holding unit.
I.e. low pressure when elder generation the second cavity of Pneumatic sealed, add confining pressure to rock core, gas confining pressure, which overcomes water leakage, to be caused to permeate
The inaccurate disadvantage of rate.After pressure rise, confining pressure is further then increased for gas, with water with water, until reaching primitively stratiform
State.The measurement accuracy rate of seepage flow characteristics can effectively be promoted.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer read/write memory medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned includes：ROM, RAM, magnetic disc or
The various media that can store program code such as person's CD.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of device for measuring super-pressure gas reservoir seepage flow characteristics, which is characterized in that including：
Core holding unit, high pressure confining pressure pump, pressure liquid pump, high pressure gas pump, high-pressure air-water separation and metering unit and number
According to processing module；
The core holding unit includes clamping part, using rock core sleeve, shell and heating muff made of perfluoroelastomer, the folder
It holds portion and the rock core sleeve is set in the shell, form the first cavity between the clamping part and the rock core sleeve,
First cavity forms the second cavity, the heating muff for rock core to be arranged between the rock core sleeve and the shell
It is set in the hull outside；
For providing confining pressure to the rock core by second cavity, the confining pressure exists the high pressure confining pressure pump with the rock core
Confining pressure in stratum is equal, and the pressure liquid pump and high pressure gas pump to the rock core for providing the rock core in the earth formation
Gas reservoir pressure, the heating muff is used to the rock core provide the temperature of the rock core in the earth formation；
The high-pressure air-water separation is used for metering unit under high pressure, to being surveyed from the fluid of the rock core output
Amount, and measurement result is sent to the data processing module；
The data processing module is used to measure the seepage flow characteristics of the rock core according to the measurement result；
Wherein, the clamping part is using clamping part made of super precipitation stainless steel material, and the shell is using super heavy
Shell made of the stainless steel material of shallow lake.
2. the apparatus according to claim 1, which is characterized in that described device further includes fluid circuit, the fluid circuit
The output end that is pumped respectively with the output end of the pressure liquid pump and the high pressure gas of one end connect, the fluid circuit
The other end is connect with the clamping part, and is connected with first cavity.
3. the apparatus of claim 2, which is characterized in that it includes that high pressure can that the high-pressure air-water, which is detached with metering unit,
Apparent volume gauge line, back-pressure valve and high pressure backpressure pump；
One end of the high pressure visable stereometer buret is connect with the fluid output end of the core holding unit, the other end with it is described
Back-pressure valve connects, and the back-pressure valve is connect with the high pressure backpressure pump, and the back-pressure valve is used for the high pressure backpressure pump to institute
The fluid output end for stating core holding unit provides back pressure, and the back pressure is equal with the gas reservoir pressure of the rock core in the earth formation.
4. device according to claim 3, which is characterized in that described device further includes first pressure sensor and first-class
Gauge, the first pressure sensor are connect with the high pressure visable stereometer buret and the data processing module respectively, institute
First flowmeter is stated to be arranged between the back-pressure valve and the high pressure visable stereometer buret.
5. device according to claim 3 or 4, which is characterized in that described device further include the visual stereometer buret of low pressure,
Second pressure sensor and second flowmeter, the visual stereometer buret of low pressure are connect with the back-pressure valve, second pressure
Force snesor and the second flowmeter be separately positioned on the visual stereometer buret of the low pressure and the data processing module it
Between.
6. device according to claim 3 or 4, which is characterized in that described device further includes temperature controller and temperature sensor,
One end of the temperature controller is connect with the heating muff, and the other end of the temperature controller is connect with the temperature sensor, institute
Temperature sensor is stated also to connect with the data processing module.
7. device according to claim 3 or 4, which is characterized in that described device further includes third pressure sensor, the 4th
Pressure sensor and the 5th pressure sensor, the third pressure sensor are connected to the pressure liquid pump and the high pressure gas
Fluid circuit between body pump, the 4th pressure sensor are connected to the stream between the high pressure gas pump and the clamping part
Body pipeline, the 5th pressure sensor are connected to the fluid output end of the core holding unit, the third pressure sensor,
4th pressure sensor and the 5th pressure sensor are also connect with the data processing module；
The high pressure confining pressure pump, the pressure liquid pump, the high pressure gas pump and the high pressure backpressure pump also with the data
Processing module connects.
8. device according to claim 3 or 4, which is characterized in that described device further include the first valve, the second valve,
Third valve, the 4th valve and the 5th valve；
The output end in the pressure liquid pump is arranged in first valve；
The output end pumped in the high pressure gas is arranged in second valve；
The third valve is arranged on the fluid circuit；
The output end pumped in the high pressure confining pressure is arranged in 4th valve；
5th valve is arranged at the fluid output end of the core holding unit.
9. the apparatus according to claim 1, which is characterized in that the clamping part includes：Left plug, gasket, two it is O-shaped
Circle, seal washer, sealing clamp ring, right rock core plug, right plug, PEEK washers and small pressure cap.
10. the apparatus according to claim 1, which is characterized in that the data processing module also with the high pressure confining pressure pump,
The pressure liquid pump and high pressure gas pump connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721345381.2U CN207610963U (en) | 2017-10-19 | 2017-10-19 | Device for measuring super-pressure gas reservoir seepage flow characteristics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721345381.2U CN207610963U (en) | 2017-10-19 | 2017-10-19 | Device for measuring super-pressure gas reservoir seepage flow characteristics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207610963U true CN207610963U (en) | 2018-07-13 |
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ID=62793724
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721345381.2U Expired - Fee Related CN207610963U (en) | 2017-10-19 | 2017-10-19 | Device for measuring super-pressure gas reservoir seepage flow characteristics |
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| CN (1) | CN207610963U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987764A (en) * | 2019-12-25 | 2020-04-10 | 重庆大学 | Long coal rock sample gas-liquid seepage test system |
| CN113075108A (en) * | 2021-03-26 | 2021-07-06 | 西南石油大学 | Rock core multiple stress sensitivity test method considering irreducible water saturation |
-
2017
- 2017-10-19 CN CN201721345381.2U patent/CN207610963U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987764A (en) * | 2019-12-25 | 2020-04-10 | 重庆大学 | Long coal rock sample gas-liquid seepage test system |
| CN113075108A (en) * | 2021-03-26 | 2021-07-06 | 西南石油大学 | Rock core multiple stress sensitivity test method considering irreducible water saturation |
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