CN211740961U - Portable shale gas desorption observation and automatic measuring device - Google Patents
Portable shale gas desorption observation and automatic measuring device Download PDFInfo
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- CN211740961U CN211740961U CN202020426065.3U CN202020426065U CN211740961U CN 211740961 U CN211740961 U CN 211740961U CN 202020426065 U CN202020426065 U CN 202020426065U CN 211740961 U CN211740961 U CN 211740961U
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Abstract
The utility model discloses portable shale gas desorption is surveyd and is disclosed with automatic measuring device portable, and can externally directly survey shale desorption process to can the automatic recording shale gas data, need not the testing arrangement that the special messenger watched on duty. The flowmeter is connected with a notebook computer, and is used for displaying and storing desorption data of the shale gas in real time, so that the watching work of specially-assigned people is avoided, and the labor cost is reduced. The coal sample jar body top is arranged in to its characterized in that coal sample cover lid, coal sample cover and the external lateral wall threaded connection of coal sample jar, the fretwork metal pad net has been put between coal sample cover and the external top of coal sample jar, go up and put the silica gel sealing washer between fretwork metal pad net and the internal top end face of coal sample jar, the coal sample jar body adopts transparent PP material to make, the coal sample jar body is for taking step formula undergauge structure, and the internal portion step department of coal sample jar is arranged in to the silica gel heater, be connected with the heater power cord on the silica gel heater.
Description
Technical Field
The utility model discloses portable shale gas desorption is surveyd and automatic measuring device relates to a device that carries out gassiness desorption test to the rock core sample, belongs to shale gas detection area. In particular to a portable shale gas desorption process which can be directly observed outside and automatically record the desorbed gas data without a specially-assigned person.
Background
Shale gas is used as a clean energy, the annual output of shale gas in China has reached the second world since the research and evaluation of shale gas resources in China developed in 2005, the gas content of shale is used as a key parameter of shale gas resource evaluation, a rock core needs to be collected when the rock core is taken out of a cylinder for carrying out shale gas desorption test, the timeliness requirement on the experiment is extremely high, the existing shale gas desorption test equipment is various, the first type is that a drainage method is adopted, the volume of shale desorption gas is obtained through a measuring cylinder, the volume of the desorption gas needs to be manually recorded on time, a specially-assigned person needs to guard in the measurement process, and the labor cost is high; the other type is that the automatic recording of the shale desorption gas volume is realized through a flowmeter, but a plurality of modules such as a plurality of coal sample tanks, detection and heating are often integrated, the volume is large, the movement is inconvenient or the modules need to be arranged on a movable desorption vehicle, and the requirements on the site are greatly improved; the tank body for containing the core sample mostly adopts a metal coal sample tank or is placed in a closed space, so that the desorption process of shale gas cannot be directly observed, water immersion experiment image data of the gas-containing desorption sample cannot be directly obtained during measurement, and the requirements of the shale structure on the desorption effect and the total gas content research cannot be met.
Notice No. CN202903638U discloses a portable measuring apparatu of shale gas content, including the experimental box, gaseous volume caliber and seal pot, the device needs personnel's ooff valve many times to exhaust when using and admit air and measure, make and need have the work of special messenger's guard in whole measurement process, make the cost of labor higher, and be used for the measuring rock core sample to be placed in the seal pot in the experimental box, unable direct observation shale desorption process, the water logging experiment image data that can't directly acquire gassiness desorption sample when leading to measuring, can't satisfy the needs that influence desorption effect and total gas content research to the shale structure.
Notice No. CN204228566U discloses a shale gas content measurement appearance, belong to shale gas exploration technical field, including shale desorption proof box, gas volume caliber and air extractor, the device needs personnel's switch valve to exhaust and admit air when using and measure, make and need have the work of special messenger's guard in whole measurement process, make the cost of labor higher, and be used for the measuring rock core sample to place in the sealed jar in the experimental box, unable direct observation shale desorption process, the water logging experiment image data that can't directly acquire gassiness desorption sample when leading to measuring, can't satisfy the needs to shale structure influence desorption effect and total gassiness volume research.
The publication number CN109342264A discloses a desorption measuring device and a method for content of coal bed gas and shale gas, the desorption measuring device comprises a self-crushing desorption tank, a bidirectional rotating motor, a metering tank, a reference tank, a sampling tank, a vacuum pump, an electronic differential pressure meter, an electric heating bath and a cooling tank, the device is provided with a plurality of tank bodies and tank bodies, the size is large, the device is not convenient to move or place on a mobile desorption vehicle, and the requirement on field sites is high. The professional technical content of equipment operation and maintenance is high, the field operation and the rapid maintenance are inconvenient, and the operation requirement under the field harsh condition cannot be well met.
Disclosure of Invention
In order to improve the condition, the utility model discloses portable shale gas desorption is surveyd and is provided a portable with automatic measuring device, and can externally directly survey shale desorption process to can the automatic recording shale gas data, need not the testing arrangement that the special messenger guards. The flowmeter is connected with a notebook computer, and is used for displaying and storing desorption data of the shale gas in real time, so that the watching work of specially-assigned people is avoided, and the labor cost is reduced.
The utility model discloses portable shale gas desorption is surveyd and is realized like this with automatic measuring device: the utility model discloses a portable shale gas desorption is surveyd and automatic measuring device comprises manometer, note bubble ware, pneumatic valve, trachea, methane flowmeter, gas sampling bag, gas sampling pump, the coal sample jar body, temperature display, coal sample cover, go up fretwork metal pad net, silica gel sealing washer, lower fretwork metal pad net, silica gel heater, heater power cord, bottom sprag spring and external temperature probe, and coal sample cover lid is arranged in coal sample jar body top, coal sample cover and coal sample jar body lateral wall threaded connection, put up fretwork metal pad net between coal sample cover and the coal sample jar body top, put the silica gel sealing washer between last fretwork metal pad net and the coal sample jar body top terminal surface, the coal sample jar body adopts transparent PP material to make, the coal sample jar body is for taking step formula undergauge structure, and the silica gel heater is arranged in the inside step department of coal sample jar body, the coal sample tank is characterized in that a heater power line is connected to the silica gel heater, one end of the heater power line is embedded in the wall of the coal sample tank body, a power socket is arranged on the outer side wall of the coal sample tank body and is electrically connected with the heater power line, an external temperature-sensing probe is arranged on the inner wall of the coal sample tank body and is located below the silica gel heater, a temperature-measuring socket is arranged on the outer wall of the coal sample tank body and is electrically connected with the external temperature-sensing probe, a lower hollow metal pad net is arranged in the coal sample tank body and is located above the silica gel heater, one end of a bottom supporting spring is connected with the bottom of the lower hollow metal pad net, the other end of the bottom supporting spring is connected with the inner bottom surface of the coal sample tank body, an air hole is formed in the coal sample tank cover, the air hole is communicated with the inner part of the coal sample tank body, the air inlet end of the methane, the gas valve is located on the gas pipe between the bubble recorder and the coal sample tank cover, the gas inlet end on the gas sampling pump is communicated with the gas outlet end of the methane flowmeter through the gas pipe, the gas sampling bag is communicated with the gas outlet end of the gas sampling pump through the gas pipe, the temperature display is inserted and arranged on the temperature measuring socket of the external temperature sensing probe, the pressure gauge is arranged on the coal sample tank cover, the gas pipe is a transparent PVC gas pipe, and the length of the power line of the heater is greater than the height of the coal sample tank body.
Advantageous effects
The flow meter is connected with a notebook computer, so that desorption data of shale gas can be displayed and stored in real time, the watching work of specially-assigned people is avoided, and the labor cost is reduced.
And the coal sample tank is made of transparent materials and placed in an external environment, so that the internal core sample can be directly observed, and the research on the desorption effect and the total gas content of the shale structure is facilitated.
Thirdly, the structure and the composition are simple, and the size is small, thereby being convenient for carrying and moving.
And fourthly, the bottom supporting spring, the upper hollow metal pad net and the lower hollow metal pad net jointly fix the sample, so that the mobile test and the image acquisition are facilitated.
Fifthly, water or specific liquid in the bubble recorder can dissolve polar toxic gas such as H2S and the like, so that desorbed gas is filtered, and metering equipment is protected.
Drawings
Fig. 1 is the utility model discloses portable shale gas desorption is surveyd and automatic measuring device's schematic structure.
Fig. 2 is the utility model discloses portable shale gas desorption is surveyd and automatic measuring device coal sample jar's schematic structure.
In the attached drawings
Wherein the method comprises the following steps: the gas sampling device comprises a pressure gauge 1, a bubble recorder 2, a gas valve 3, a gas pipe 4, a methane flowmeter 5, a data line 6, a notebook computer 7, a gas sampling bag 8, a gas sampling pump 9, a coal sample tank body 10, a temperature display 11, a coal sample tank cover 12, an upper hollow metal pad net 13, a silica gel sealing ring 14, a lower hollow metal pad net 15, a silica gel heater 16, a heater power line 17, a bottom supporting spring 18 and an external temperature sensing probe 19.
The specific implementation mode is as follows:
the utility model discloses a portable shale gas desorption is surveyd and automatic measuring device is realized like this, by manometer 1, note bubble ware 2, pneumatic valve 3, trachea 4, methane flowmeter 5, gas sampling bag 8, gas sampling pump 9, coal sample jar body 10, temperature monitor 11, coal sample jar cover 12, go up fretwork metal pad net 13, silica gel sealing washer 14, lower fretwork metal pad net 15, silica gel heater 16, heater power cord 17, bottom supporting spring 18 and external temperature sensing probe 19 and constitute, coal sample jar cover 12 lid is arranged in the top of coal sample jar body 10, coal sample jar cover 12 and coal sample jar body 10 lateral wall threaded connection, it has fretwork metal pad net 13 to put between coal sample jar cover 12 and the top of coal sample jar body 10 top, it has silica gel sealing washer 14 to put between the top terminal surface of upper fretwork metal pad net 13 and coal sample jar body 10, coal sample jar body 10 adopts transparent PP material to make, the coal sample tank body 10 is of a stepped reducing structure, a silica gel heater 16 is arranged at the step inside the coal sample tank body 10, a heater power line 17 is connected onto the silica gel heater 16, one end of the heater power line 17 is embedded in the wall of the coal sample tank body 10, a power socket is arranged on the outer side wall of the coal sample tank body 10 and is electrically connected with the heater power line 17, an external temperature-sensing probe 19 is arranged on the inner wall of the coal sample tank body 10 and is positioned below the silica gel heater 16, a temperature-measuring socket is arranged on the outer wall of the coal sample tank body 10 and is electrically connected with the external temperature-sensing probe 19, a lower hollow metal pad net 15 is arranged in the coal sample tank body 10 and is positioned above the silica gel heater 16, one end of a bottom supporting spring 18 is connected with the bottom of the lower hollow metal pad net 15, the other end of the bottom supporting spring 18 is connected with the inner bottom surface of the, the gas pocket is linked together with the coal sample jar 10 is inside, the inlet end of methane flowmeter 5 is linked together through the gas pocket on trachea 4 and the coal sample cover 12, be provided with on trachea 4 between methane flowmeter 5 and the coal sample cover 12 and note bubble ware 2 and pneumatic valve 3, pneumatic valve 3 is located notes bubble ware 2 and coal sample cover 12 trachea 4 between, the inlet end on the gas sampling pump 9 communicates mutually through the end of giving vent to anger of trachea 4 and methane flowmeter 5, gaseous sampling bag 8 communicates mutually through the end of giving vent to anger of trachea 4 and gas sampling pump 9, temperature monitor 11 pegs graft and arranges in on the temperature measurement socket of external temperature sensing probe 19, manometer 1 arranges in on the coal sample cover 12, trachea 4 is transparent PVC trachea 4, heater power cord 17 length is greater than the coal sample jar 10 height.
When the coal sample tank is used, water is filled into the coal sample tank body 10, the core sample is placed on the lower hollow metal pad net 15 in the coal sample tank body 10, the coal sample tank cover 12 with the upper hollow metal pad net 13 and the silica gel sealing ring 14 is fixed on the coal sample tank body 10, the core sample is limited, and desorption and observation are carried out on the sample at room temperature. In the process of simulating formation temperature desorption, a heater power line 17 is connected with electricity, so that a silica gel heater 16 heats a rock core sample, desorption under the condition of simulating a specific temperature is realized, the desorption process can be observed outside through a transparent coal sample tank body 10, meanwhile, a gas sampling pump 9 works, and gas generated in the desorption process is pumped into a gas sampling bag 8 through a gas pipe 4;
the methane flowmeter 5 records the instantaneous flow rate and the accumulated flow rate of the flow, and is connected with a computer or an accumulated counter through a data line 6 to realize automatic recording of the flow, and the notebook computer 7 is provided with flowmeter software, can monitor and record related parameters such as test data in real time and can derive the related parameters such as the test data in real time;
the temperature in the coal sample tank body 10 can be detected through the temperature display 11 to be regulated; the control is realized by manually observing the pressure gauge 1 and the bubble recorder 2 to regulate the air valve 3;
the gas flow rate is determined by the rising speed of bubbles in the bubble recorder 2, and water or specific liquid in the bubble recorder 2 can dissolve polar toxic gas such as H2S and the like to protect metering equipment and the like; after the gas collecting bag is filled, the gas collecting bag is disconnected from the gas pipe 4, and the gas is directly discharged into the air or directly ignited and burnt by connecting a stainless steel pipe;
the length of the heater power line 17 is greater than the height of the coal sample tank, so that the silica gel heater 16 can be replaced conveniently;
the coal sample tank body 10 is designed to have a stepped reducing structure, the stepped surface can support the lower hollow metal pad net 15 and the silica gel heater 16, and can protect the external interfaces of the external temperature sensing probe 19 and the silica gel heater 16;
the portable shale gas desorption instrument has the advantages of being convenient to move and carry, being capable of directly observing the shale desorption process outside, being capable of automatically recording shale gas desorption data and being free of the watching of specially-assigned persons.
The above embodiments are the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any person skilled in the art can make some modifications without departing from the scope of the invention, i.e. all equivalent modifications made according to the invention are intended to be covered by the scope of the invention.
It should also be noted that, unless otherwise specifically stated or limited, the terms "disposed on," "mounted on," "connected to" and "connected to" are to be construed broadly and may include, for example, a fixed connection such as a crimped connection, a riveted connection, a pinned connection, an adhesive connection, a welded connection, a removable connection such as a threaded connection, a snap connection, a hinged connection, an integral connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (6)
1. The utility model provides a portable shale gas desorption is surveyd and automatic measuring device which characterized by: the coal sample tank cover is arranged at the top of the coal sample tank body, the coal sample tank cover is in threaded connection with the outer side wall of the coal sample tank body, an upper hollowed metal pad net is arranged between the coal sample tank cover and the top of the coal sample tank body, the silica gel heater is arranged at the step inside the coal sample tank body, the silica gel heater is connected with a heater power line, one end of the heater power line is embedded in the wall of the coal sample tank body, a power socket is arranged on the outer side wall of the coal sample tank body and is electrically connected with the heater power line, and the external probe is arranged on the inner wall of the coal sample tank body, the coal sample tank is positioned below the silica gel heater, a temperature measuring socket is arranged on the outer wall of the coal sample tank body and is electrically connected with an external temperature sensing probe, a lower hollow metal pad net is arranged in the coal sample tank body and positioned above the silica gel heater, one end of a bottom supporting spring is connected with the bottom of the lower hollow metal pad net, the other end of the bottom supporting spring is connected with the inner bottom surface of the coal sample tank body, an air hole is formed in the coal sample tank cover and is communicated with the inside of the coal sample tank body, the air inlet end of the methane flow meter is communicated with the air hole in the coal sample tank cover through an air pipe, a bubble recorder and an air valve are arranged on the air pipe between the methane flow meter and the coal sample tank cover, the air valve is positioned on the air pipe between the bubble recorder and the coal sample tank cover, the air inlet end on the gas sampling pump is communicated with the air outlet end of the methane flow meter through the air pipe, the temperature display is inserted and arranged on a temperature measuring socket of the external temperature sensing probe, and the pressure gauge is arranged on the coal sample tank cover.
2. The portable shale gas desorption observation and automatic measuring device of claim 1, wherein the heater power line length is greater than the height of the coal sample tank.
3. The portable shale gas desorption observation and automatic measurement device as claimed in claim 1, wherein a silica gel sealing ring is arranged between the upper hollow metal pad net and the top end face of the coal sample tank body.
4. The portable shale gas desorption observation and automatic measurement device as claimed in claim 1, wherein the coal sample tank body is made of transparent PP material.
5. The portable shale gas desorption observation and automatic measurement device as claimed in claim 1 or 4, wherein the coal sample tank body is of a stepped reducing structure.
6. The portable shale gas desorption observation and automatic measuring device of claim 1, wherein the gas pipe is a transparent PVC gas pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020426065.3U CN211740961U (en) | 2020-03-17 | 2020-03-17 | Portable shale gas desorption observation and automatic measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020426065.3U CN211740961U (en) | 2020-03-17 | 2020-03-17 | Portable shale gas desorption observation and automatic measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN211740961U true CN211740961U (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020426065.3U Active CN211740961U (en) | 2020-03-17 | 2020-03-17 | Portable shale gas desorption observation and automatic measuring device |
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| Country | Link |
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| CN (1) | CN211740961U (en) |
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- 2020-03-17 CN CN202020426065.3U patent/CN211740961U/en active Active
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