CN109307542B - On-site desorption quantity measuring device and method thereof - Google Patents
On-site desorption quantity measuring device and method thereof Download PDFInfo
- Publication number
- CN109307542B CN109307542B CN201710622352.4A CN201710622352A CN109307542B CN 109307542 B CN109307542 B CN 109307542B CN 201710622352 A CN201710622352 A CN 201710622352A CN 109307542 B CN109307542 B CN 109307542B
- Authority
- CN
- China
- Prior art keywords
- water
- metering
- pipe
- liquid level
- water cup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
- G01F22/02—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for involving measurement of pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a field desorption amount measuring device, which comprises a water cup and one or more metering tubes connected with the water cup; the upper part of each metering pipe is connected with a desorption tank; the lower part of the water cup is provided with a water tank, the lower port of the liquid level pipe penetrates through the bottom of the water cup and is inserted into the water tank, and the upper port of the liquid level pipe is higher than the bottom of the water cup; when the water in the water cup is higher than the upper port of the liquid level pipe, the water in the water cup flows into the water tank through the upper port of the liquid level pipe; when the water in the water cup is lower than the upper end opening of the liquid level pipe, the water in the water tank is pumped into the water cup through the water pump, so that the liquid level of the water in the water cup is kept unchanged. On the basis of measuring the volume by adopting the traditional drainage and gas collection method, the invention realizes automation by a pressure measurement method, can simultaneously complete the analysis of a plurality of samples, can adapt to different sample types, and is more portable and efficient compared with the prior art.
Description
Technical Field
The invention belongs to the technical field of unconventional oil and gas exploration, and particularly relates to a field desorption quantity measuring device and method applying a drainage gas collection method.
Background
Shale gas refers to unconventional natural gas that is present in reservoir rock systems that are predominantly rich in organic matter shale.
At present, two types of instruments for measuring the shale gas desorption amount on site are available: the instrument can realize automatic measurement, but because the mass flowmeter requires single gas composition or unchanged composition when measuring the volume, different gases are measured, the real volume of the gas flowing through the flowmeter can be obtained through conversion, and when the gas contains water vapor, the measured value is greatly deviated, and for the measurement of the shale field desorption gas, the components of the shale field desorption gas also change along with the lapse of desorption time, and a core barrel inevitably contains certain moisture, thereby directly influencing the measurement result.
The second method is to adopt the traditional drainage and gas collection method for measurement, and when reading, a container containing water needs to be moved to the position near a metering glass tube manually, and the reading is carried out after the water level is aligned by naked eyes. After a core barrel comes out, more than 3-4 samples are generally taken, and as the shortest metering period of the field desorption amount needs to be read every 2 minutes, and people also need to read at night, the workload is very large, automation cannot be realized, and meanwhile, after a glass tube is filled with gas, measurement cannot be switched.
From the above, the prior art has two major disadvantages: the automatic instrument cannot directly measure the volume; the manual drainage and gas collection method directly measures the volume, but cannot realize automation and has large workload.
Therefore, a shale gas field desorption quantity measuring device is needed, which can automatically measure the volume, adapt to rock samples with different desorption quantities and is convenient for collecting gas samples.
Disclosure of Invention
In order to solve the problems, the invention provides a field desorption quantity measuring device and a method thereof, which can convert the gas desorbed in the shale desorption process into a standard volume according to parameters such as a pressure value, the diameter of a glass tube, the volume of a desorption tank, the weight of a sample and the like acquired in real time, thereby realizing the automatic measurement of the desorbed gas.
The invention provides a field desorption quantity measuring device which comprises a water cup and one or more metering tubes connected with the water cup; the upper part of each metering pipe is connected with a desorption tank; the lower part of the water cup is provided with a water tank, the lower port of the liquid level pipe penetrates out of the bottom of the water cup and is inserted into the water tank, and the upper port of the liquid level pipe is higher than the bottom of the water cup;
when the water in the water cup is higher than the upper port of the liquid level pipe, the water in the water cup flows into the water tank through the upper port of the liquid level pipe; when the water in the water cup is lower than the upper end opening of the liquid level pipe, the water in the water tank is pumped into the water cup through the water pump, so that the liquid level of the water in the water cup is kept unchanged.
In one embodiment, a normally open valve and a three-way valve are sequentially arranged between the desorption tank and the metering pipe, and the third end of the three-way valve is connected with a gas injection port; and a pressure sensor is arranged between the normally open valve and the three-way valve, the pressure sensor is electrically connected with the control device, and the upper part of each metering pipe is also respectively connected with a release valve.
In one embodiment, the control device further comprises an ambient temperature sensor and an atmospheric pressure sensor.
In one embodiment, the level of water in the cup is below the upper port of the metering tube.
In one embodiment, the bottom of each metering pipe is provided with a communicating pipe, and the communicating pipes are connected with the bottom of the water cup together.
In one embodiment, each metering tube can be removed and replaced with a glass tube of a different inner diameter.
According to the present invention, there is provided an in-situ desorption amount measuring method according to the in-situ desorption amount measuring apparatus, comprising the steps of:
step 1: in the initial state, a normally open valve is opened, a vent valve is closed, and the maximum liquid level difference h with a fixed value is calibratedmaxAnd the volume V between the normally open valve and the metering tube0；
Step 2: placing the sample in a sealed desorption tank, introducing the desorbed gas into a metering pipe, downwards squeezing water in the metering pipe so as to press the water into a water cup, and overflowing the water in the water cup into a water tank through an upper end opening of a liquid level pipe;
and step 3: the pressure sensor regularly acquires gas pressure and the ambient temperature sensor and the atmospheric pressure sensor regularly acquire ambient temperature and atmospheric pressure;
and 4, step 4: when the gas in the metering tube reaches the preset liquid level height, the pressure sensor collects the maximum gas pressure PmaxAnd the atmospheric pressure sensor collects the ambient pressure PRing (C)；
Meanwhile, the control device automatically controls to close the normally open valve, opens the air release valve to exhaust, water in the water cup flows back to the metering pipe, and the water pump pumps water in the water tank into the water cup to keep the liquid level of the water cup unchanged;
and 5: when the pressure sensor detects that the gas pressure of the metering pipe reaches the ambient atmospheric pressure, the air release valve is closed, and the normally open valve is opened;
step 6: connecting the three-way valve with the gas injection port and the desorption tank, and injecting pressure P into the desorption tank from the gas injection port0Volume VCalibrationThe three-way valve is connected with the desorption tank and the metering pipe, and after the gas is stabilized, the pressure sensor acquires the pressure P in the metering pipeCalibrationAnd a measuring tube liquid level difference hCalibration；
And 7: recovering the initial state and starting the next desorption cycle;
in one embodiment, the fixed volume V between the desorption tank and the normally open valve is calibrated based on the data obtained in step 1 and step 6Pot for storing foodThe value of (a) is,
P0(Vpot for storing food+V0+VCalibration)＝PCalibration(VPot for storing food+V0+hCalibrationS)
VPot for storing food＝(P0VCalibration-PCalibrationhCalibrationS)/(PCalibration-P0)-V0
Wherein S is the area of the inner cross section of the metering tube;
in one embodiment, the value of the released fixed volume Vmax at the time of the metered tube deflation is calibrated based on the data obtained in step 1 and step 4,
Vmax＝[Pmax(V0+hmaxS)-Pring (C)V0]/PSign board
Wherein, P Sign board1 standard atmosphere; s is the area of the inner cross section of the metering tube;
in one embodiment, at any two times t1 and t2, the pressure is P1And P2The corresponding liquid level difference is h1And h2And the cross section area in the glass tube is S, the gas is discharged by the metering tube for n times in the two measurement intervals, and the desorption gas quantity in the two measurement intervals is converted into a standard state:
V＝[P2(Vpot for storing food+V0+h1S)-P1(VPot for storing food+V0+h2S)]/PSign board+nVmax
Wherein, P Sign board1 standard atmosphere; s is the area of the inner cross section of the metering tube.
Compared with the prior art, the invention has the advantages that: (1) the water cup can be simultaneously connected with at least one metering tube, so that the device can be used for simultaneously collecting and analyzing the desorbed gas of a plurality of samples; (2) the metering tube can be detached, and the metering glass tubes with different inner diameters can be replaced mutually, so that the device can adapt to samples with different types and desorption amounts, and is suitable for shale gas and coal bed gas; (3) desorption gas is collected by adopting a drainage gas collection method, the composition of the gas does not need to be considered in the obtained data, the data error is small, and the reliability is high; (4) the control device is adopted for control, automation is realized, and the workload of field measurement personnel is reduced.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
FIG. 1 shows a structural view of an in-situ desorption amount measuring apparatus according to the present invention;
in the drawings like parts are provided with the same reference numerals. The figures are not drawn to scale.
Detailed Description
The invention will be further explained with reference to the drawings.
FIG. 1 is a view showing a construction of an on-site desorption amount measuring apparatus according to the present invention, which comprises a sealed desorption tank 1, and a sample is put in the sealed desorption tank 1 to perform gas desorption; the upper end of the desorption tank 1 is connected with a normally open valve 2, the normally open valve 2 is used for controlling the opening and closing of the gas outflow in the desorption tank 1, the normally open valve 2 can be an electromagnetic valve or a manual valve, and in order to realize automation, the electromagnetic valve is adopted in the preferred embodiment; the normally open valve 2 is further connected with a three-way valve 3, the three-way valve 3 can be an electromagnetic valve or a manual valve, and in the embodiment, the three-way valve 3 is a manual valve; the three-way valve 3 is communicated with the desorption tank 1 and the metering pipe 5 in an initial state, when the volume V tank between the desorption tank 1 and the normally-open valve 2 needs to be measured, the three-way valve 3 is shifted to enable the three-way valve 3 to be communicated with the gas injection port B and the desorption tank 1, and it needs to be explained that the volume of gas in the desorption tank 1 is a fixed value, so the volume V tank between the desorption tank 1 and the normally-open valve 2 is a fixed value.
The three-way valve 3 is connected to the upper end of the metering pipe 5, the metering pipe 5 is a glass pipe in the embodiment, the change of gas and liquid in the metering pipe 5 can be observed more easily and visually in the implementation of the glass pipe, the metering pipe 5 can be detached and replaced in the embodiment, and when samples with different desorption amounts are analyzed, the glass metering pipes 5 with different inner diameters can be adopted, so that the measured data are more accurate and reliable; the upper end of the metering pipe 5 is also connected with a gas release valve 4, and the gas release valve 4 is used for discharging the gas in the desorption tank 1 collected in the metering pipe 5; the lower end of the metering tube 5 is connected with the bottom of the water cup 6 through a communicating tube 10, so that when the gas desorbed from the desorption tank 1 enters the metering tube 5, the gas presses the liquid in the metering tube 5 to enter the water cup 6.
In one embodiment, the liquid in the metering tube 5 does not completely fill the entire metering tube 5 but a certain volume is left, when the cup 6 is initially set, the height of the liquid level in the cup 6 is lower than the upper port of the metering tube 5, because the cup 6 is communicated with the metering tube 5, the height of the liquid level in the cup 6 is on the same horizontal plane as the height of the liquid level in the metering tube 5, because the volume in the metering tube 5 is fixed, when the positions of the cup 6 and the metering tube 5 are relatively fixed, the volume left in the metering tube 5 is a fixed value, and further, the volume between the metering tube 5 and the normally open valve 2 is a fixed value, namely V0; meanwhile, the liquid level height in the metering pipe 5 is also a fixed value, and when the gas in the desorption tank 1 exhausts the liquid in the metering pipe 5 to reach the liquid level height D set at the lower part of the metering pipe 5, the maximum height of the liquid discharged from the metering pipe 5 is also a fixed value, namely hmax; since the inner diameter area S of the measuring pipe 5 is fixed, the volume of the maximum liquid that can be discharged in the measuring pipe 5 is also fixed, that is, Vmax is hmaxS.
A water tank 7 is arranged below the water cup 6, a liquid level pipe 9 and a water pump 8 are arranged between the water cup 6 and the water tank 7, the liquid level pipe 9 is responsible for enabling liquid in the water cup 6 to flow into the water tank 7, and the water pump 8 is responsible for enabling the water pump 8 in the water tank 7 to flow into the water cup 6; in one embodiment, the liquid level pipe 9 is tubular and the lower port of the liquid level pipe 9 penetrates through the bottom of the water cup 6 and is inserted into the water tank 7, the upper port of the liquid level pipe 9 is higher than the bottom of the water cup 6, so that a part of liquid in the water cup 6 lower than the upper port of the liquid level pipe 9 cannot overflow into the water tank 7 through the liquid level pipe 9, and when the water in the water cup 6 is higher than the upper port of the liquid level pipe 9, the water in the water cup 6 flows into the water tank 7 through the upper port of the liquid level pipe 9; when the water in the water cup 6 is lower than the upper port of the liquid level pipe 9, the water in the water tank 7 is pumped into the water cup 6 through the water pump 8, so that the liquid level of the water in the water cup 6 is kept unchanged, and the liquid level difference formed between the metering pipe 5 and the water cup 6 can be calibrated more visually in the desorption process.
Therefore, through the device, the device realizes the gas collection of the drainage gas collection method, so that the volume is directly measured without considering the composition of the gas, and the data is stable and reliable.
In one embodiment, a pressure sensor 11 is arranged between the normally open valve 2 and the three-way valve 3, the pressure sensor 11 is aimed at measuring the pressure of the gas flowing through the pressure sensor 11, the pressure sensor 11 of the device of the present invention adopts a high-precision sensor with a range of 1 meter of water column (0.1 atm), the precision is 0.1%, if the volume of the metering tube 5 is 500ml, the height error of the last reading of the metering tube 5 through the pressure sensor 11 is about 0.1mm, and the error is much smaller than the precision of the reading of human eyes, therefore, the data obtained by the pressure sensor 11 is directly obtained by using the data obtained by the formula, and the obtained data is more stable and reliable. In addition, the device of the invention needs to realize automatic control, the pressure sensor 11 is also electrically connected with the control device 12, and the control device 12 also comprises an ambient temperature sensor 13 and an atmospheric pressure sensor 14, so that the control device 12 can control the opening and closing of the normally open valve 2 and the air release valve 4 and is also responsible for collecting the ambient temperature, the atmospheric pressure and the desorption gas pressure.
In a preferred embodiment, the water cup 6 can be communicated with at least one metering pipe 5, in other words, in the whole device, the water cup 6, the water tank 7, the liquid level pipe 9 and the water pump 8 are a set of separate devices, the bottoms of a plurality of metering pipes 5 are respectively connected to the bottom of the water cup 6 together through respective communicating pipes 10, and the plurality of metering pipes 5 are a separate set of collection system, namely, each metering pipe 5 is provided with a separate desorption valve, a normally open valve 2, a three-way valve 3, a vent valve 4, a pressure sensor 11, a control device 12, an ambient temperature sensor 13 and an atmospheric pressure sensor 14. The design of this structure can realize simultaneously carrying out the analysis to a plurality of samples, and work load is big and high-efficient.
The on-site desorption amount measurement method using the on-site desorption amount measurement apparatus will be specifically described below, including the steps of:
step 1: in the initial state, the normally open valve 2 is opened, the air release valve 4 is closed, the three-way valve 3 is communicated with the desorption tank 1 and the metering pipe 5, the height of the water cup 6 and the metering pipe 5 is adjusted, and the maximum liquid level difference hmax in the metering pipe 5 and the volume V0 between the normally open valve 2 and the metering pipe 5 are calibrated.
Step 2: the sample is placed in a sealed desorption tank 1, desorbed gas enters a metering pipe 5 from A, liquid in the metering pipe 5 is squeezed downwards and is pressed into a water cup 6, and water in the water cup 6 overflows into a water tank 7 through an upper port of a liquid level pipe 9.
And step 3: the control device 12 controls the pressure sensor 11 to acquire gas pressure at regular time, the ambient temperature sensor 13 to acquire ambient temperature at regular time, and the atmospheric pressure sensor 14 to acquire atmospheric pressure at regular time.
And 4, step 4: when the gas in the metering pipe 5 displaces the liquid in the metering pipe 5, so that the liquid in the metering pipe 5 reaches the preset liquid level height D, at this time, the maximum gas pressure collected by the pressure sensor 11 is Pmax, and the ambient pressure collected by the atmospheric pressure sensor 14 is P-ring.
Then, the control device 12 automatically controls to close the normally open valve 2 and open the air release valve 4 to discharge the gas collected in the metering pipe 5 to the C, at this time, the liquid in the water cup 6 flows back to the metering pipe 5, and in order to keep the liquid level in the water cup 6 constant, the water pump 8 pumps the liquid in the water tank 7 into the water cup 6.
And 5: when the pressure sensor 11 detects that the gas pressure in the metering pipe 5 reaches the ambient atmospheric pressure P0, the purge valve 4 is closed and the normally open valve 2 is opened.
Step 6: the three-way valve 3 is communicated with the gas injection port B and the desorption tank 1, gas with pressure P0 and volume V calibrated is injected into the desorption tank 1 through the gas injection port B, then the three-way valve 3 is connected with the desorption tank 1 and the metering pipe 5, and after the stability, the pressure sensor 11 obtains the pressure P calibration in the metering pipe 5 and the liquid level difference h calibration of the metering pipe 5.
And 7: recovering the initial state and starting the next desorption cycle;
and 8: the desorption gas amount is calculated according to the pressure measured by the pressure sensor 11 at regular time.
How to calculate the desorption gas amount in step 8 will be explained in detail below.
Calibrating the value of the fixed volume Vcan between the desorption tank 1 and the normally open valve 2 according to the data obtained in the step 1 and the step 6,
P0(Vpot for storing food+V0+VCalibration)＝PCalibration(VPot for storing food+V0+hCalibrationS)
VPot for storing food＝(P0VCalibration-PCalibrationhCalibrationS)/(PCalibration-P0)-V0
Wherein S is the area of the inner cross section of the metering tube 5;
calibrating the value of the released fixed volume Vmax when the metering tube 5 is deflated according to the data obtained in the step 1 and the step 4,
Vmax＝[Pmax(V0+hmaxS)-Pring (C)V0]/PSign board
Wherein, P Sign board1 standard atmosphere; s is the area of the inner cross section of the metering tube 5;
assuming that at any two times t1 and t2, the pressure is P1 and P2, the corresponding liquid level difference is h1 and h2, the cross-sectional area in the glass tube is S, and the gas is discharged from the metering tube 5 n times in the two measurement intervals, the desorption gas amount in the two measurement intervals is converted into a standard state:
V＝[P2(Vpot for storing food+V0+h1S)-P1(VPot for storing food+V0+h2S)]/PSign board+nVmax
Wherein, P Sign board1 standard atmosphere; s is the area of the inner cross section of the metering tube 5;
the resulting V is thus the quantity of desorbed gas taken over two metering intervals.
All data records are recorded in a memory card of the control device 12 of the device according to a software design format, a U disk can be inserted, the data are recorded in the U disk, after an experiment is finished, the whole set of data can be processed through special software, loss measurement is recovered, and loss air volume is obtained.
From the above, the present invention has the following advantages: (1) the water cup 6 can be simultaneously connected with at least one metering tube 5, so that the device can simultaneously collect and analyze the desorbed gases of a plurality of samples; (2) the metering tube 5 can be detached, and the metering glass tubes with different inner diameters can be replaced mutually, so that the device can adapt to samples with different types and desorption amounts, and is suitable for shale gas and coal bed gas; (3) desorption gas is collected by adopting a drainage gas collection method, the composition of the gas does not need to be considered in the obtained data, the data error is small, and the reliability is high; (4) the control device 12 is adopted for control, automation is realized, and the workload of field measurement personnel is reduced.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (2)
1. A field desorption amount measuring method is carried out by using a field desorption amount measuring device, wherein the field desorption amount measuring device comprises a water cup and a plurality of metering pipes connected with the water cup; the upper part of each metering pipe is connected with a desorption tank; the lower part of the water cup is provided with a water tank, the lower port of the liquid level pipe penetrates out of the bottom of the water cup and is inserted into the water tank, and the upper port of the liquid level pipe is higher than the bottom of the water cup;
when the water in the water cup is higher than the upper port of the liquid level pipe, the water in the water cup flows into the water tank through the upper port of the liquid level pipe; when the water in the water cup is lower than the upper end opening of the liquid level pipe, the water in the water tank is pumped into the water cup through the water pump, so that the liquid level of the water in the water cup is kept unchanged;
a normally open valve and a three-way valve are sequentially arranged between the desorption tank and the metering pipe, and the third end of the three-way valve is connected with a gas injection port; a pressure sensor is arranged between the normally open valve and the three-way valve, the pressure sensor is electrically connected with the control device, and the upper part of each metering pipe is also connected with a gas release valve; the control device also comprises an ambient temperature sensor and an atmospheric pressure sensor;
the height of the water level in the water cup is lower than the upper port of the metering pipe;
the bottom of each metering pipe is provided with a communicating pipe, and the communicating pipes are connected with the bottom of the water cup together;
the method is characterized by comprising the following steps:
step 1: in an initial state, opening a normally open valve, closing a gas release valve, communicating a desorption tank and a metering pipe by a three-way valve, adjusting the height of a water cup and the metering pipe, and calibrating the maximum liquid level difference hmax in the metering pipe and the volume V0 between the normally open valve and the metering pipe;
step 2: placing the sample in a sealed desorption tank, introducing the desorbed gas into a metering pipe, downwards squeezing water in the metering pipe so as to press the water into a water cup, and overflowing the water in the water cup into a water tank through an upper end opening of a liquid level pipe;
and step 3: the pressure sensor regularly acquires gas pressure and the ambient temperature sensor and the atmospheric pressure sensor regularly acquire ambient temperature and atmospheric pressure;
and 4, step 4: when the gas in the metering pipe displaces the liquid in the metering pipe to enable the liquid in the metering pipe to reach the preset liquid level height D, the maximum gas pressure collected by the pressure sensor is Pmax, and the ambient pressure P collected by the atmospheric pressure sensor isRing (C)；
Meanwhile, the control device automatically controls to close the normally open valve, opens the air release valve to exhaust, water in the water cup flows back to the metering pipe, and the water pump pumps water in the water tank into the water cup to keep the liquid level of the water cup unchanged;
and 5: when the pressure sensor detects that the gas pressure of the metering pipe reaches the ambient atmospheric pressure, the air release valve is closed, and the normally open valve is opened;
step 6: connecting the three-way valve with the gas injection port and the desorption tank, and injecting pressure P0 and volume V into the desorption tank from the gas injection portCalibrationThe three-way valve is connected with the desorption tank and the metering pipe, and after the gas is stabilized, the pressure sensor acquires the pressure P in the metering pipeCalibrationAnd a measuring tube liquid level difference hCalibration；
And 7: recovering the initial state and starting the next desorption cycle;
and 8: calculating desorption gas quantity according to the pressure measured by the pressure sensor at regular time; specifically, the fixed volume V between the desorption tank and the normally open valve is calibrated according to the data obtained in the steps 1 and 6Pot for storing foodThe value of (a) is,
P0(Vpot for storing food+V0+VCalibration)＝PCalibration(VPot for storing food+V0+hCalibrationS) ，
VPot for storing food＝(P0VCalibration-PCalibrationhCalibrationS)/(PCalibration-P0)-V0；
Wherein S is the area of the inner cross section of the metering tube;
calibrating the value of the released fixed volume Vmax when the metering tube is deflated according to the data obtained in the step 1 and the step 4,
Vmax＝[Pmax(V0+hmaxS)-Pring (C)V0]/PSign board，
Wherein, PSign board1 standard atmosphere;
at any two times t1 and t2, the pressure is P1 and P2 respectively, the corresponding liquid level difference is h1 and h2, the cross-sectional area in the glass tube is S, the gas is discharged from the metering tube for n times in the two measurement intervals, and the desorption gas amount in the two measurement intervals is converted into a standard state:
V＝[P2(Vpot for storing food+V0+h1S)-P1(VPot for storing food+V0+h2S)]/PSign board+nVmax。
2. The in situ desorption dosage method of claim 1 wherein each metering tube is capable of being removed and replaced with a glass tube of a different internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710622352.4A CN109307542B (en) | 2017-07-27 | 2017-07-27 | On-site desorption quantity measuring device and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710622352.4A CN109307542B (en) | 2017-07-27 | 2017-07-27 | On-site desorption quantity measuring device and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109307542A CN109307542A (en) | 2019-02-05 |
| CN109307542B true CN109307542B (en) | 2020-09-04 |
Family
ID=65201929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710622352.4A Active CN109307542B (en) | 2017-07-27 | 2017-07-27 | On-site desorption quantity measuring device and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109307542B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116929992A (en) * | 2022-04-06 | 2023-10-24 | 中国石油化工股份有限公司 | Desorption gas amount testing device and measuring and calculating method |
| CN117405551A (en) * | 2022-07-08 | 2024-01-16 | 中国石油化工股份有限公司 | Device for detecting oil, gas and water content in rock and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354383A (en) * | 1979-09-20 | 1982-10-19 | Bosch & Pierburg System Ohg | Method of and device for measuring the amount of liquid fuel in a tank |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155206B (en) * | 2013-05-14 | 2016-12-28 | 中国石油化工股份有限公司 | Rock air content measurement apparatus and the method using its measurement rock air content |
| US20150316404A1 (en) * | 2014-05-02 | 2015-11-05 | Transonic Systems, Inc. | Measurement of fluid volume of a blood oxygenator in an extracorporeal circuit |
| CN104317314A (en) * | 2014-10-22 | 2015-01-28 | 华中科技大学 | Liquid level control device |
| CN206161087U (en) * | 2016-09-22 | 2017-05-10 | 重庆泛嘉晟禾工程技术检测有限公司 | Gassiness flow measurement gasometry meter |
-
2017
- 2017-07-27 CN CN201710622352.4A patent/CN109307542B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354383A (en) * | 1979-09-20 | 1982-10-19 | Bosch & Pierburg System Ohg | Method of and device for measuring the amount of liquid fuel in a tank |
Non-Patent Citations (1)
| Title |
|---|
| "钻井液对高煤阶煤层气解吸率损害评价方法研究";姜韡 等;《复杂油气藏》;20140331;第62-64页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109307542A (en) | 2019-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208171813U (en) | A kind of multi-functional permeability test device | |
| CN106501155A (en) | Rock core gas liquid two purpose permeability test device and reservoir damage evaluation method | |
| CN102749276B (en) | Device and method for determining permeation coefficient of unsaturated soil | |
| CN109307542B (en) | On-site desorption quantity measuring device and method thereof | |
| CN110160929A (en) | Realize the flexible wall permeameter and application method that two kinds of solution continuously permeate | |
| CN202256109U (en) | Rock core self-absorption experimental apparatus for simulating formation conditions | |
| CN105928832B (en) | The assay method of capillary viscosity analyzer and fluid viscosity | |
| WO2023193514A1 (en) | Desorbed gas amount testing device and measuring method | |
| CN107727555A (en) | Device for testing permeability coefficient and method of testing | |
| CN113218843A (en) | Multifunctional triaxial experiment system and method for acoustoelectric osmosis and the like | |
| CN113176193A (en) | Crack flow conductivity testing system and method | |
| CN207423761U (en) | The indoor soil-column experimental provision infiltrated for Dripping simulation | |
| CN104766513B (en) | A kind of pressure signal flow measurement device and flow-measuring method | |
| CN104748801A (en) | Water tank outflow volume measurement device | |
| CN110455675B (en) | Measurement method of automatic measurement system for biogas yield by anaerobic fermentation | |
| CN203117009U (en) | Automatic sampling device for underground gas of coal mine | |
| CN109799180A (en) | A kind of device of Simulated soil columns rainfall infiltration overall process | |
| CN110208497A (en) | A kind of portable soil specific yield tester and test method | |
| CN206504983U (en) | A kind of easy device for measuring effective porosity of permeable concrete | |
| CN104897544B (en) | The vaporization prevention type double-ring infiltration instrument for being easily installed and fixing | |
| CN105973337B (en) | Experimental device and experimental method for metering and drying sampling of gas product | |
| CN108872529A (en) | For measuring shale rupture methane lost imitative experimental appliance and its method | |
| CN206192840U (en) | Dual -purpose permeability testing arrangement of rock core gas -liquid | |
| CN208780597U (en) | A kind of device automatically recording Markov bottle height of water level | |
| CN206756253U (en) | Small-sized anaerobic fermentation system gas measurement device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |