CN108956368A - A kind of rock gas saturation measurement system and method - Google Patents
A kind of rock gas saturation measurement system and method Download PDFInfo
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- CN108956368A CN108956368A CN201810715217.9A CN201810715217A CN108956368A CN 108956368 A CN108956368 A CN 108956368A CN 201810715217 A CN201810715217 A CN 201810715217A CN 108956368 A CN108956368 A CN 108956368A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
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Abstract
The present invention provides a kind of rock gas saturation to measure system and method, comprising: gas cylinder, gas-booster, high pressure buffer gas tank, high pressure sample detection container, the first valve being set on the first high pressure line of gas and first pressure gauge, the second valve being set on the second high pressure line and second pressure gauge；Gas cylinder is connected to by third high pressure line with gas-booster, for conveying the gas of storage；Gas-booster is connected to by the first high pressure line with high pressure buffer gas tank, for received gas pressurized and being transported to high pressure buffer gas tank；High pressure buffer gas tank is connected to by the second high pressure line with high pressure sample detection container, for received gas to be transported to high pressure sample detection container；High pressure sample detection container, for placing sample to be tested and receiving the gas after pressurization.The present invention has the simulation for meeting different depth pressure limit, supports the beneficial effect for being once put into multiple samples to be tested, pipeline connection is simple and testing efficiency is high.
Description
Technical field
The present invention relates to oil exploration technology fields more particularly to a kind of rock gas saturation to measure system and method.
Background technique
Rock gas saturation is to measure one of the parameter of its gas storage performance, is referred under different filling pressure conditions, day
After right gas filling reservoir, natural gas occupies the percentage of reservoir pore space volume.At present generally by well logging, geophysics, number
Value simulation carries out the measurement of rock gassiness saturation with physical simulating method, and the gassiness that logging method is difficult to Accurate Determining rock is full
And degree, geophysics and the method for numerical simulation also control by many geologic(al) factors, the degree of reliability also depend on geology ginseng
For several Rational choices and measuring and calculating person to the Grasping level of geologic information, traditional physical simulating method is by natural gas origin object
Simulated experiment is managed to complete, general flow is will first to dry after rock core oil washing, then vacuumizes saturated water, then installs rock core
Clamper simultaneously adds confining pressure, connecting pipeline and core holding unit and gas cylinder, gradually adjusts cylinder outlet pressure, infuses at various pressures
Enter gas, metering extraction water calculates gas saturation.Well logging, geophysics and method for numerical simulation are to belong to indirect one
Kind measurement method, is primarily directed under underground state the detection for having had the stratum of natural gas origin, and physical analogy is one
The direct measurement method of kind, can be set the gas saturation of rock under different pressures state, to reach evaluation reservoir
Purpose, each have their own advantage of two methods.
Traditional physical analogy gassiness measuring method is filled by filling gas to rock core one direction with certain pressure difference
Gas percent by volume in rock core hole is measured after note balance, rock core is placed in core holding unit, setting clamper exports
Back-pressure valve pressure is held, confining pressure is then added, gas is injected to rock core by injected system, records the injection pressure tested every time
The shortcomings that Deng, physical analogy measuring method, is as follows: a sample can only be once measured, experimental period is longer, and it is complicated for operation, and
It is only limited to the open geological environment of simulation.
Therefore, how to realize can experimental period it is short, it is easy to operate, and support simultaneously measure multiple samples, be currently urgently
The technical issues of solution.
Summary of the invention
In order to solve defect in the prior art, the present invention provides a kind of rock gas saturation measurement system and sides
Method, the present invention is combined using conventional physical simulated experiment existing equipment, mainly by gas cylinder (gas generally uses nitrogen), gas
Body supercharger, high pressure buffer gas tank and high pressure sample detection container composition, have the pressure limit that can satisfy different depth
Simulation, support once to be put into that multiple samples to be tested, pipeline connection is simple and improves the beneficial effect of testing efficiency.
To achieve the goals above, the present invention provides a kind of rock gas saturation to measure system, comprising: gas cylinder, gas
Body supercharger, high pressure buffer gas tank, high pressure sample detection container, to be set to the gas-booster and the high pressure gas slow
The first valve on the first high pressure line and first pressure gauge that rush between tank and be set to the high pressure buffer gas tank with
The second valve and second pressure gauge on the second high pressure line between the high pressure sample detection container；
The gas cylinder is connected the air inlet of the venthole of the gas cylinder and the gas-booster by third high pressure line
It is logical, for the gas to gas-booster conveying storage；
The gas-booster is by first high pressure line by the venthole of the gas-booster and the high pressure
The air inlet of gas buffer tank is connected to, for carrying out pressurization to the received gas and being transported to the gas after pressurization described
High pressure buffer gas tank；
The high pressure buffer gas tank by second high pressure line by the venthole of the high pressure buffer gas tank with
The air inlet of the high pressure sample detection container is connected to, for the gas after the received pressurization to be transported to the high pressure-like
Product examine xylometer；
The high pressure sample detection container, for placing sample to be tested and receiving the gas after the pressurization.
In one embodiment, the first pressure gauge for monitor the gas-booster and the high pressure buffer gas tank it
Between the first air pressure, to close first valve and simultaneously slowly beat after first air pressure reaches the first preset pressure value
Open second valve；
The second pressure gauge is for monitoring between the high pressure buffer gas tank and the high pressure sample detection container
Second air pressure, to close second valve after second air pressure reaches the second preset pressure value.
In one embodiment, the high pressure buffer gas tank further include: container upper cover and container body；
The air inlet of the high pressure buffer gas tank is set on the container upper cover, and the high pressure buffer gas tank goes out
Stomata is set to the container body bottom；
The container upper cover is placed on the container body top, for keeping the container body closed.
In one embodiment, the high pressure sample detection container includes: sample room upper cover, sample room, sample sifter and is set to
The venthole of the sample room lower part；
The air inlet of the high pressure sample detection container is set on the sample room on lid；
The sample sifter is set in the sample room, for placing sample to be tested；
The sample room upper cover is placed on the top of the sample room, for keeping the sample room closed.
In one embodiment, rock gas saturation measures system further include: the be set on the third high pressure line
Three pressure gauges and third valve；The original state of the third valve is in off state；The third pressure gauge is for monitoring institute
State the air pressure between gas cylinder and the gas-booster.
In one embodiment, rock gas saturation measures system further include: the be set on second high pressure line
Four valves.
In one embodiment, rock gas saturation measures system further include: is set to and the high pressure sample detection container
Venthole connection the 4th high pressure line on the 5th valve, for emptying the gas in the high pressure sample detection container.
In one embodiment, rock gas saturation measures system further include: the first support base and the second support base；Described
One support base is for placing the high pressure buffer gas tank；Second support base holds for placing the high pressure sample detection
Device.
In one embodiment, the gas is nitrogen.
System is measured according to above-mentioned rock gas saturation, the present invention also provides a kind of rock gas saturation measurement sides
Method, this method comprises:
Sample to be tested is uniformly placed in high pressure sample detection container；
Gas in gas cylinder is transported to the gas-booster；
It is pressurizeed using the gas-booster to the gas, and the gas after pressurization is stored in high pressure gas and is delayed
It rushes in tank；
The first air pressure between the gas-booster and the high pressure buffer gas tank is monitored by first pressure gauge；When
After first air pressure reaches the first preset pressure value, first valve is closed；
Successively slowly open the 4th valve and second valve, the high pressure buffer gas tank is by the gas after pressurization
Body is slowly transported to the high pressure sample detection container；
Second between the high pressure buffer gas tank and the high pressure sample detection container is monitored by second pressure gauge
Air pressure；After second air pressure reaches the second preset pressure value, second valve is closed；
The gas in the high pressure sample detection container is emptied, and successively takes out each sample to be tested and calculates each sample to be tested
Gas saturation.
A kind of rock gas saturation provided by the invention measures system and method, comprising: gas cylinder, gas-booster, height
Calm the anger body surge tank, high pressure sample detection container, be set between the gas-booster and the high pressure buffer gas tank
The first valve and first pressure gauge on first high pressure line and it is set to the high pressure buffer gas tank and the high pressure-like
The second valve and second pressure gauge on the second high pressure line between product examine xylometer；The gas cylinder passes through third high pressure line
The venthole of the gas cylinder is connected to the air inlet of the gas-booster, for what is stored to gas-booster conveying
Gas；The gas-booster passes through first high pressure line for the venthole of the gas-booster and the high pressure gas
The air inlet of surge tank is connected to, for pressurize to the received gas and the gas after pressurization being transported to the high pressure
Gas buffer tank；The high pressure buffer gas tank passes through second high pressure line for the venthole of the high pressure buffer gas tank
It is connected to the air inlet of the high pressure sample detection container, for the gas after the received pressurization to be transported to the high pressure
Sample detection container；The high pressure sample detection container, for placing sample to be tested and receiving the gas after the pressurization.This hair
It is bright to be combined using conventional physical simulated experiment existing equipment, have the pressure limit that can satisfy different depth simulation,
Support is once put into multiple samples to be tested, pipeline connects beneficial effect that is simple and improving testing efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of rock gas saturation measurement system of the application；
Fig. 2 is the structural schematic diagram of the high pressure buffer gas tank in one embodiment of the application；
Fig. 3 is the structural schematic diagram of the high pressure sample detection container in one embodiment of the application；
Fig. 4 is the structural schematic diagram of the rock gas saturation measurement system in one embodiment of the application；
Fig. 5 is a kind of flow chart of rock gas saturation measuring method of the application.
Specific embodiment
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.
About " first " used herein, " second " ... etc., not especially censure the meaning of order or cis-position,
Also non-to limit the present invention, only for distinguishing with the element of same technique term description or operation.
It is open term, i.e., about "comprising" used herein, " comprising ", " having ", " containing " etc.
Mean including but not limited to.
About it is used herein " and/or ", including any of the things or all combination.
In view of the deficiencies in the prior art, the present invention provides a kind of rock gas saturation to measure system, knot
Composition is as shown in Figure 1, the system includes: gas cylinder 1, gas-booster 2, high pressure buffer gas tank 3 and high pressure sample detection container
4。
Wherein gas-booster 2 is connected to by the first high pressure line 5 with high pressure buffer gas tank 3, high pressure buffer gas tank 3
It is connected to by the second high pressure line 6 with high pressure sample detection container 4, gas cylinder 1 passes through third high pressure line 7 and gas-booster 2
Connection.
First pressure gauge 8 and the first valve 9 are set on the first high pressure line 5, the tool of the first pressure table 8 and the first valve 9
Body position are as follows: venthole O2 of the first pressure gauge 8 close to supercharger 2, air inlet of first valve 9 close to high pressure buffer gas tank 3
The positional relationship of hole i3, first pressure gauge 8 of the present invention and the first valve 9 is not limited.
Second valve 10 and second pressure gauge 11 are set on the second high pressure line 6, the second valve 10 and second pressure gauge
11 specific location are as follows: the second valve 10 is close to the venthole O3 of high pressure buffer gas tank 3, and 11 table of second pressure is close to high pressure-like
The air inlet i4 of product examine xylometer 4.
The venthole O1 of gas cylinder 1 is connected to by gas cylinder 1 by third high pressure line 7 with the air inlet i2 of gas-booster 2, is used
In the gas for conveying the storage of gas cylinder 1 to gas-booster 2.
Gas-booster 2 passes through the first high pressure line 5 for the venthole O2 of gas-booster 2 and high pressure buffer gas tank 3
Air inlet i3 connection, for received gas carry out pressurize and the gas after pressurization is transported to high pressure buffer gas tank 3.
High pressure buffer gas tank 3 passes through the second high pressure line 6 for the venthole O3 and high pressure sample of high pressure buffer gas tank 3
The air inlet i4 of detection container 4 is connected to, for the gas after received pressurization to be transported in high pressure sample detection container 4.
High pressure sample detection container 4, for placing sample to be tested and receiving the gas after pressurization.
Structure as shown in Figure 1 it is found that the present invention is combined using conventional physical simulated experiment existing equipment, mainly by
Gas cylinder 1 (gas generally uses nitrogen), gas-booster 2, high pressure buffer gas tank 3 and high pressure sample detection container 4 form, and use
In measuring under high pressure conditions (be more than or equal to 12MPa) rock core gas saturation.The invention has the following beneficial effects:
(1) multiple samples to be tested are tested simultaneously；
(2) wider array of simulation geological boundry parameter；
(3) experimental provision is simple, easy to operate, and testing efficiency is high.
In one embodiment, as shown in Figure 1, first pressure gauge 8 is for monitoring gas-booster 2 and high pressure buffer gas
The first air pressure between tank 3, to close the first valve 9 and slowly open after the first air pressure reaches the first preset pressure value
Second valve 10 is input to the gas slowly after gas-booster 2 pressurizes in high pressure sample detection container 4.
Second pressure gauge 11 is used to monitor the second air pressure between high pressure buffer gas tank 3 and high pressure sample detection container 4,
To close the second valve 10, make by the gas in high pressure buffer gas tank 3 after the second air pressure reaches the second preset pressure value
Body is stored in high pressure sample detection container 4.
In one embodiment, as shown in Fig. 2, high pressure buffer gas tank 3 further include: container upper cover 31 and container body 32；
The air inlet i3 of high pressure buffer gas tank is set on container upper cover 31, the venthole O3 of high pressure buffer gas tank 3
It is set to the bottom of container body 32.
Container upper cover 31 is placed on the top of container body 32, for keeping container body 32 closed, prevents gas from leaking outside.
In one embodiment, as shown in figure 3, high pressure sample detection container 4 include: sample room upper cover 41, sample room 42,
Sample sifter 43 and the venthole O4 for being set to 42 lower part of sample room.
The air inlet i4 of high pressure sample detection container 4 is set in sample room upper cover 41.
Sample sifter 43 is set in sample room 42, for placing sample to be tested 17.
Sample room upper cover 41 is placed on the top of sample room 42, for keeping sample room 42 closed, prevents gas from leaking outside.
In one embodiment, as shown in Figure 1, the rock gas saturation measures system further include: third pressure gauge 12
And third valve 13.
Wherein, third pressure gauge 12 and third valve 13 are set on third high pressure line 7, third pressure gauge 12 and third
The specific location of valve 13 are as follows: third pressure gauge 12 is close to the venthole O1 of gas cylinder 1, and third valve 13 is close to gas-booster 2
Air inlet i2, the positional relationship of third pressure gauge 12 and third valve 13 of the present invention is not limited.
The original state of third valve 13 is in off state, gas when opening third valve 13 when test starts in gas cylinder 1
Body is output to gas-booster 2.
Third pressure gauge 12 is used to monitor air pressure between gas cylinder 1 and gas-booster 2, with guarantee the flow direction of gas be from
Gas cylinder 1 is output in gas-booster 2.
In one embodiment, as shown in Figure 1, the rock gas saturation measures system further include: it is high to be set to second
The 4th valve 14 on pressure pipeline 6.
4th valve 14 is set between second pressure gauge 11 and the air inlet i4 of high pressure sample detection container 4, is being opened
Before second valve 10, the 4th valve 14 is first opened.
In one embodiment, as shown in Figure 1, the rock gas saturation measures system further include: the 4th high-voltage tube 15
And the 5th valve 16.
Wherein the 4th high-voltage tube 15 is connected to the venthole O4 of high pressure sample detection container 4, and the 5th valve 16 is set to
Opening the 5th valve 16 on four high pressure lines 15, after the completion of test will be in high pressure sample detection container 4 by the 4th high-voltage tube 15
Gas emptying.
In one embodiment, as shown in Figure 1, the rock gas saturation measures system further include: the first support base 18,
Second support base 19 and third support base 20.
Wherein the first support base 18 is for placing high pressure buffer gas tank 3, and the second support base 19 is for placing high pressure sample
Detection container 16, third support base 20 are used to support gas-booster 2, and third support base 20 is specially wheel or bracket.
In one embodiment, the present invention also provides a kind of rock gas saturation to measure system, structure chart such as Fig. 4
Shown, for measuring under low-pressure state and (being less than 12MPa) rock core gas saturation, which includes: gas cylinder 1 and high pressure sample
Detection container 4.
Wherein gas cylinder 1 is connected to by the 4th high pressure line with high pressure sample detection container 4, third pressure gauge 12, third valve
Door 13, second pressure gauge 11, the 4th valve 14 are set in turn on the 4th high pressure line.
Structure as shown in Figure 4 it is found that the present invention is combined using conventional physical simulated experiment existing equipment, mainly by
Gas cylinder 1 (gas generally uses nitrogen) and high pressure sample detection container 4 form, and directly utilize high pressure line by gas cylinder and high pressure-like
The connection of product examine xylometer, reduces gas-booster and high pressure buffer gas tank this link.For measuring under low-pressure state
(being less than or equal to 12MPa) rock core gas saturation.The invention has the following beneficial effects:
(1) multiple samples to be tested can be measured simultaneously；
It (2) can wider array of simulation geological boundry parameter；
(3) experimental provision is simple, easy to operate, and testing efficiency is high.
In one embodiment, the gas stored in gas cylinder 1 is nitrogen, and invention is not limited thereto.
Conceived based on application identical with above-mentioned rock gas saturation measurement system, the present invention also provides a kind of rocks
Gas saturation measuring method, as described in following example.The original solved the problems, such as due to the rock gas saturation measuring method
Reason is similar to rock gas saturation measurement system, therefore the implementation of the rock gas saturation measuring method may refer to rock
Gas saturation measures the implementation of system, and overlaps will not be repeated.
Fig. 5 is a kind of flow chart of rock gas saturation measuring method provided by the present application.According to above-mentioned rock gassiness
Saturation degree measures system, a kind of rock gas saturation measuring method is provided in the present embodiment, as shown in figure 5, the rock contains
Gas saturation measuring method includes:
S101: sample to be tested is uniformly placed in high pressure sample detection container；
S102: the gas in gas cylinder is transported to gas-booster；
S103: it is pressurizeed using gas-booster to gas, and the gas after pressurization is stored in high pressure buffer gas
In tank；
S104: the first air pressure between gas-booster and high pressure buffer gas tank is monitored by first pressure gauge；When
After one air pressure reaches the first preset pressure value, the first valve is closed；
S105: successively slowly opening the 4th valve and the second valve, and high pressure buffer gas tank is by the gas slowly after pressurization
It is transported to high pressure sample detection container；
S106: the second gas between high pressure buffer gas tank and high pressure sample detection container is monitored by second pressure gauge
Pressure；After the second air pressure reaches the second preset pressure value, the second valve is closed；
S107: the gas in emptying high pressure sample detection container, and successively take out each sample to be tested and calculate each sample to be tested
Gas saturation.
When it is implemented, first from rock core harvester (gauge of bit φ 25mm or φ 38mm) and rock core cutting machine
Core sample to be measured (diameter phi 25mm or the φ 38mm of core sample to be measured, the length L < of core sample to be measured managed
After 100mm) drying, the dry sample weight G of the i.e. sample to be tested 17 of each core sample is weighedIt is dry, saturated water is then carried out (with traditional measurement
Pre-treatment be the same), by after saturated water core sample (hereinafter referred to as sample to be tested 17) taking-up claim to obtain its weight, record
Under each sample saturated water after sample weight GSaturated water。
Secondly ensure that third valve is in close state before the experiments, other containers are normal pressure.Then by sample to be tested
17 are put into that code in the sample sifter 43 of high pressure sample detection container 4 is good, and sample to be tested 17 is separated to retain between sample rapidly
There is certain space, then cover tightly sample room upper cover 41, shuts the 4th valve 14 and the 5th valve 16.
Again, it closes the second valve 10 and opens the first valve 9, then slowly open third valve 13, make in gas cylinder 1
Nitrogen be slowly output in gas-booster 2, nitrogen is pressurized to the first preset pressure value and (surveys by starting gas-booster 2
Pressure limit needed for examination), and the nitrogen after pressurization is stored in high pressure buffer gas tank 3, the first valve 9 is closed, then
The 4th valve 14 is slowly opened, then slowly opens the second valve 10, the nitrogen after pressurization is exported into high pressure buffer gas tank 3
To high pressure sample detection container 4, the data of second pressure gauge 11 are observed, until reaching the second preset pressure value (pressure tested
Force numerical value), the data to second pressure gauge 11 steadily turn off the second valve 10 after a certain period of time, hold high pressure sample detection
Device 4 is in air-tight state.
After the completion of test, the nitrogen in the 5th valve 16 emptying detection container 4 is opened, sample to be tested 17 is taken out one by one and is used in combination
Electronic balance claims the sample to be tested for successively weighing and recording the current pressure point that each sample to be tested 17 is recorded in second pressure gauge 11
Example weight G after 17 expelling waterExpelling water, according to rock gas saturation calculation principle, calculated using gas drive water method in the second pressure
The gas saturation S of each sample to be tested 17 for the current pressure point that power table 11 recordsg, wherein gas saturation SgCalculation formula
As shown in formula (1):
Sg=100 × (GSaturated water- GExpelling water)/(GSaturated water- GIt is dry)
Wherein, SgFor the gas saturation of each sample to be tested 17 of current pressure point, unit %, GSaturated waterFor respectively to test sample
Example weight after 17 saturated water of product, unit g, GExpelling waterFor example weight after the expelling water of each sample to be tested 17, unit g, GIt is dryFor
The dry sample weight of rock sample to be tested 17, unit g.
Finally, sample to be tested 17 is put into sample room again, open the second valve 10, then measure another pressure spot gassiness it is full
And degree.The measurement of the gas saturation in multiple pressure force is gradually repeated the operation of previous pressure spot by low pressure to high pressure.
A kind of rock gas saturation provided by the invention measures system and method, comprising: gas cylinder, gas-booster, height
It calms the anger body surge tank, high pressure sample detection container, the first high pressure being set between gas-booster and high pressure buffer gas tank
It the first valve and first pressure gauge on pipeline and is set between high pressure buffer gas tank and high pressure sample detection container
The second valve and second pressure gauge on second high pressure line；Gas cylinder passes through third high pressure line for the venthole and gas of gas cylinder
The air inlet of supercharger is connected to, for the gas to gas-booster conveying storage；Gas-booster passes through the first high pressure line
The venthole of gas-booster is connected to the air inlet of high pressure buffer gas tank, for being pressurizeed and being incited somebody to action to received gas
Gas after pressurization is transported to high pressure buffer gas tank；High pressure buffer gas tank passes through the second high pressure line for high pressure buffer gas
The venthole of tank is connected to the air inlet of high pressure sample detection container, for the gas after received pressurization to be transported to high pressure-like
Product examine xylometer；High pressure sample detection container, for placing sample to be tested and receiving the gas after pressurization.The present invention is using tradition
Physical simulation experiment existing equipment is combined, and is had the simulation for the pressure limit that can satisfy different depth, is supported once to put
Enter multiple samples to be tested, pipeline connects beneficial effect that is simple and improving testing efficiency.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
Specific embodiment is applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (10)
1. a kind of rock gas saturation measures system characterized by comprising gas cylinder, gas-booster, high pressure buffer gas
Tank, high pressure sample detection container, the first high-voltage tube being set between the gas-booster and the high pressure buffer gas tank
The first valve and first pressure gauge on line and it is set to the high pressure buffer gas tank and the high pressure sample detection container
Between the second high pressure line on the second valve and second pressure gauge；
The venthole of the gas cylinder is connected to by the gas cylinder by third high pressure line with the air inlet of the gas-booster, is used
In the gas to gas-booster conveying storage；
The gas-booster passes through first high pressure line for the venthole of the gas-booster and the high pressure gas
The air inlet of surge tank is connected to, for pressurize to the received gas and the gas after pressurization being transported to the high pressure
Gas buffer tank；
The high pressure buffer gas tank by second high pressure line by the venthole of the high pressure buffer gas tank with it is described
The air inlet of high pressure sample detection container is connected to, and is examined for the gas after the received pressurization to be transported to the high pressure sample
Xylometer；
The high pressure sample detection container, for placing sample to be tested and receiving the gas after the pressurization.
2. rock gas saturation according to claim 1 measures system, which is characterized in that the first pressure gauge is used for
The first air pressure between the gas-booster and the high pressure buffer gas tank is monitored, to reach the when first air pressure
After one preset pressure value, closes first valve and slowly open second valve；
The second pressure gauge is used to monitor second between the high pressure buffer gas tank and the high pressure sample detection container
Air pressure, to close second valve after second air pressure reaches the second preset pressure value.
3. rock gas saturation according to claim 1 measures system, which is characterized in that the high pressure buffer gas tank
Further include: container upper cover and container body；
The air inlet of the high pressure buffer gas tank is set on the container upper cover, the venthole of the high pressure buffer gas tank
It is set to the container body bottom；
The container upper cover is placed on the container body top, for keeping the container body closed.
4. rock gas saturation according to claim 1 measures system, which is characterized in that the high pressure sample detection is held
Device includes: sample room upper cover, sample room, sample sifter and the venthole for being set to the sample room lower part；
The air inlet of the high pressure sample detection container is set on the sample room on lid；
The sample sifter is set in the sample room, for placing sample to be tested；
The sample room upper cover is placed on the top of the sample room, for keeping the sample room closed.
5. rock gas saturation according to claim 1 measures system, which is characterized in that further include: it is set to described
Third pressure gauge and third valve on third high pressure line；The original state of the third valve is in off state；Described
Three pressure gauges are used to monitor the air pressure between the gas cylinder and the gas-booster.
6. rock gas saturation according to claim 3 measures system, which is characterized in that further include: it is set to described
The 4th valve on second high pressure line.
7. rock gas saturation according to claim 4 measures system, which is characterized in that further include: it is set to and institute
The 5th valve on the 4th high pressure line of the venthole connection of high pressure sample detection container is stated, for emptying the high pressure sample
Gas in detection container.
8. rock gas saturation according to claim 4 measures system, which is characterized in that further include: the first support base
And second support base；First support base is for placing the high pressure buffer gas tank；Second support base is for placing
The high pressure sample detection container.
9. rock gas saturation as claimed in any of claims 1 to 8 measures system, which is characterized in that described
Gas is nitrogen.
10. a kind of rock gas saturation measuring method, applied to rock gassiness described in any one of claim 1 to 8
Saturation degree measures system characterized by comprising
Sample to be tested is uniformly placed in high pressure sample detection container；
Gas in gas cylinder is transported to the gas-booster；
It is pressurizeed using the gas-booster to the gas, and the gas after pressurization is stored in high pressure buffer gas tank
In；
The first air pressure between the gas-booster and the high pressure buffer gas tank is monitored by first pressure gauge；When described
After first air pressure reaches the first preset pressure value, first valve is closed；
The 4th valve and second valve are successively slowly opened, the high pressure buffer gas tank delays the gas after pressurization
Slowly it is transported to the high pressure sample detection container；
The second air pressure between the high pressure buffer gas tank and the high pressure sample detection container is monitored by second pressure gauge；
After second air pressure reaches the second preset pressure value, second valve is closed；
The gas in the high pressure sample detection container is emptied, and successively takes out the gassiness that each sample to be tested calculates each sample to be tested
Saturation degree.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112098011A (en) * | 2019-06-17 | 2020-12-18 | 沅圣科技股份有限公司 | Air tightness detection system and air tightness detection method |
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