CN110736649A - soil free hydrocarbon flux sampling device - Google Patents
soil free hydrocarbon flux sampling device Download PDFInfo
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- CN110736649A CN110736649A CN201810794486.9A CN201810794486A CN110736649A CN 110736649 A CN110736649 A CN 110736649A CN 201810794486 A CN201810794486 A CN 201810794486A CN 110736649 A CN110736649 A CN 110736649A
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- flux
- constant volume
- sampling device
- cavity
- free hydrocarbon
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- 230000004907 flux Effects 0.000 title claims abstract description 90
- 238000005070 sampling Methods 0.000 title claims abstract description 52
- 239000002689 soil Substances 0.000 title claims abstract description 36
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 35
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 35
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 230000007613 environmental effect Effects 0.000 claims description 13
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 229910001095 light aluminium alloy Inorganic materials 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000011065 in-situ storage Methods 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000004817 gas chromatography Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 238000001819 mass spectrum Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004158 soil respiration Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides an soil free hydrocarbon flux sampling device which comprises a flux box constant volume cavity, an environment sensor, an expansion interface and a constant volume sealing ring, wherein an open structure is arranged below the flux box constant volume cavity, the environment sensor is arranged inside the flux box constant volume cavity, the expansion interface is arranged above the outside of the flux box constant volume cavity and is connected with the environment sensor, the constant volume sealing ring is arranged below the outside of the flux box constant volume cavity and is used for ensuring that the internal volume of the flux box constant volume cavity is a preset value when the flux box constant volume cavity is drilled into a stratum, and the invention designs soil hydrocarbon gas flux sampling and in-situ detection front-end devices suitable for different surface environments and lithology.
Description
Technical Field
The invention relates to the field of oil and gas geochemical exploration.
Background
Geochemical surface exploration is based on direct detection of hydrocarbon fluids, however, the integrity of the determination of whether the content of light hydrocarbon has real information is which is the key issue discussed in the exploration world, in terms of technology, the determination of time points puts high requirements on the content and the detection limit, along with the development of technology, a method for deducing the surface gas emission flux by measuring the turbulence condition of the near stratum and the concentration change of trace gas is carried out, the gas transportation flux measured by the method at the height of can represent the surface gas emission flux, foreign researchers have carried out more comprehensive research and establish a closed box method, and the purposes of the closed box method comprise the research on soil respiration (Parkinson, Mosier), the research on soil degassing research in geological middle volcanic areas (Cioni et al) and the research on hydrocarbon leakage of oil-bearing areas (Klusman, Etiope).
The static flux box is established by domestic researchers, and the static box-gas chromatograph automatic observation system developed at present is successfully applied to all-weather continuous observation in the field and is of the effective method for measuring the greenhouse gas emission of ecological systems such as farmlands, paddy fields, water bodies, soil, grasslands and the like at present, however, the static box method has the prominent problems that the turbulence state, the temperature, the humidity, the illumination, the radiation condition and the like in the box can be changed to further influence the authenticity of the measurement result on the degree of course, and in addition, problems are that the emission of gases such as methane has great spatial nonuniformity, and the area directly measured by the box method is small, so the representativeness of the measurement result is worthy of serious consideration.
Accordingly, the present invention seeks to solve the above problems at scale by designing a portable soil hydrocarbon flux sampling device suitable for field construction of oil and gas chemical exploration.
Disclosure of Invention
The invention aims to provide soil free hydrocarbon flux sampling devices, simplify sampling tools and processes, improve sampling automation degree, and serve as front-end devices for different in-situ detection and adsorption sampling.
To achieve the above object, the present invention provides soil free hydrocarbon flux sampling devices, comprising:
the flux box constant volume cavity is of an open structure below;
the environment sensor is arranged inside the flux box constant volume cavity;
the expansion interface is arranged above the outside of the flux box constant volume cavity and is connected with the environment sensor; and
the constant volume sealing ring is arranged below the outside of the flux box constant volume cavity and used for ensuring that the internal volume of the flux box constant volume cavity is preset value when the flux box constant volume cavity is drilled into a stratum.
The soil free hydrocarbon flux sampling device, wherein, still include the screw thread drill way, it set up in the outside below of flux case constant volume cavity just is located the below of constant volume sealing ring.
The soil free hydrocarbon flux sampling device, wherein the environmental sensor is an integrated environmental sensor, which comprises a temperature sensor, a humidity sensor and/or an air pressure sensor.
The soil free hydrocarbon flux sampling device, wherein, the inside of flux case constant volume cavity still is provided with the extension gas circuit, environmental sensor through the extension gas circuit with extension interface connection.
Soil free hydrocarbon flux sampling device, wherein, the outside top of flux case constant volume cavity still is provided with the display screen, its and environmental sensor electrical connection.
The soil free hydrocarbon flux sampling device, wherein, the outside top of flux case constant volume cavity still is provided with the extension slot.
The soil free hydrocarbon flux sampling device, wherein the expansion interface comprises a plurality of universal interfaces.
The soil free hydrocarbon flux sampling device, wherein, the constant volume cavity of flux case is the cylinder.
The soil free hydrocarbon flux sampling device, wherein, the outside top of flux case constant volume cavity is provided with the handle.
The soil free hydrocarbon flux sampling device, wherein, the constant volume cavity of flux case adopts high strength aviation aluminum alloy to make.
In conclusion, the soil hydrocarbon gas flux sampling and in-situ detection front-end device has the beneficial effects that soil hydrocarbon gas flux sampling and in-situ detection front-end devices suitable for different surface environments and lithology are designed, the device has the advantages of portability, durability, flexible and extensible standardized interface and the like, the original sampling tool combination and flow are simplified, the integration level is improved, and a realistic means is provided for realizing field soil hydrocarbon gas flux and in-situ detection operable by a single person.
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 is a front view of a soil free hydrocarbon flux sampling apparatus according to the present invention;
fig. 2 is a top view of a soil free hydrocarbon flux sampling apparatus according to the present invention.
In the drawings, like parts are provided with like reference numerals. The drawings are not to scale.
Detailed Description
The invention will now be described in further detail with reference to the drawings.
In addition, the flux box constant volume cavity 5 can be made of light-weight materials such as high-strength aviation aluminum alloy, so that the flux box constant volume cavity 5 can be carried by a single person in the field, and the lower part of the flux box constant volume cavity 5 is of an open structure so as to be conveniently inserted into soil.
An expansion gas circuit (not shown in detail in the figure) and an environmental sensor 4 are arranged in the flux box constant volume cavity 5. The environment sensor 4 is integrated, and includes a temperature sensor, a humidity sensor, an air pressure sensor, and the like, and automatically records various environment parameters during sampling.
An expansion slot 3, an expansion panel 8 with an expansion interface 2 and a display screen 9 are further arranged above the outside of the flux box constant volume cavity 5. Wherein, expansion interface 2 includes a plurality of general interfaces, can replace the accessory as required for sampling needle sampling interface, atmospheric sampling ware cyclic access adsorption sampling, infrared, portable gas chromatography or portable mass spectrum etc. just the expansion gas circuit sets up between expansion interface 2 and environmental sensor 4. The expansion slot 3 is used for fixing a detector linked with an expansion interface. The display screen 9 is electrically connected to the environmental sensor 4 and is used to display the readings of the environmental sensor 4.
The flux box constant volume cavity comprises a flux box constant volume cavity body 5, a constant volume sealing ring 6 is arranged below the outer portion of the flux box constant volume cavity body 5, a threaded drilling hole 7 is formed in the flux box constant volume cavity body 5 below the constant volume sealing ring 6, the flux box constant volume cavity body 5 can directly drill into a stratum through the threaded drilling hole 7 until the constant volume sealing ring 6 separates the interior of the flux box constant volume cavity body 5 from the atmosphere, air is pumped from an expansion interface 2 on the flux box constant volume cavity body 5 to enable gas in the flux box to be balanced with the gas in the soil, the constant volume sealing ring 6 is used for contacting the soil in the aspect of , the volume in the flux box is fixed to be 10L, and in addition, the aspect also plays a role of separating from.
Example 1:
adsorption sampling and direct sampling in field
1. Positioning to a required sampling point position, taking out the flux box constant volume cavity 5, starting the environment sensor 4, observing data through the display screen 9, and recording temperature, humidity and air pressure data during sampling;
2. the handle 1 is held, and the flux box constant volume cavity 5 is drilled into the stratum by utilizing a threaded drilling hole at the bottom until the position of the constant volume sealing ring 6 is reached;
3. taking out the adsorption tube which is activated in advance, connecting the air sampler and the adsorption tube to the expansion interface 2 for adsorption sampling, wherein the typical gas flow is 0.5L/min, the acquisition time is 20min, closing the air sampler after sampling, and sealing and storing the adsorption tube;
4. 10mL of the free gas sample was taken through the sampling port of the syringe and injected into a sample bottle filled with saturated saline.
Example 2:
in-situ extension detection
1. Positioning to a required sampling point position, taking out the flux box constant volume cavity 5, starting the environment sensor 4, observing data through the display screen 9, and recording temperature, humidity and air pressure data during sampling;
2. taking out the in-situ detector (infrared and portable gas chromatography) to be connected to the expansion interface 2 and fixing the in-situ detector through the expansion slot 3;
3. and (5) carrying out in-situ hydrocarbon concentration detection, and recording the detected concentration.
In conclusion, the beneficial effects of the invention are as follows:
1. the flux box has high integration level and portability, the main body is made of high-strength aviation aluminum alloy, the weight is light, the flux box can be carried and operated by a single person in the field, the flux box can be directly drilled into the ground layer through the handle, the lower part of the flux box and the threads, and the sealing performance of is ensured;
2. flexibility and expandability, the upper part of the flux box panel is provided with a plurality of universal interfaces, and accessories can be replaced as required to be sampling needle sampling interfaces, atmosphere samplers, infrared, portable gas chromatography or portable mass spectrometry and the like;
3. the integrated environmental sensor can automatically record various environmental parameters during sampling, and can be linked with an external detection and sampling device to realize the functions of outputting experimental conditions, automatically controlling and the like.
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 (10)
1, soil free hydrocarbon flux sampling device, characterized by comprising:
the flux box constant volume cavity is of an open structure below;
the environment sensor is arranged inside the flux box constant volume cavity;
the expansion interface is arranged above the outside of the flux box constant volume cavity and is connected with the environment sensor; and
the constant volume sealing ring is arranged below the outside of the flux box constant volume cavity and used for ensuring that the internal volume of the flux box constant volume cavity is preset value when the flux box constant volume cavity is drilled into a stratum.
2. The soil free hydrocarbon flux sampling device of claim 1, further comprising a threaded drill hole disposed below the exterior of the flux box constant volume cavity and below the constant volume sealing ring.
3. The soil free hydrocarbon flux sampling device of claim 1, wherein said environmental sensor is an integrated environmental sensor comprising a temperature sensor, a humidity sensor and/or an air pressure sensor.
4. The soil free hydrocarbon flux sampling device of any of claims 1-3, wherein the inside of the constant volume cavity of the flux box is further provided with an expansion gas path, and the environment sensor is connected with the expansion interface through the expansion gas path.
5. A soil free hydrocarbon flux sampling device as claimed in any of claims 1-3 wherein a display screen is also provided on the top of the exterior of the volumetric cavity of the flux box and is electrically connected to an environmental sensor.
6. A soil free hydrocarbon flux sampling device as claimed in any of claims 1-3 wherein an expansion slot is further provided above the outside of the volumetric cavity of the flux box.
7. The soil free hydrocarbon flux sampling device of any one of claims 1 to 3, , wherein the expansion interface comprises a plurality of universal interfaces.
8. A soil free hydrocarbon flux sampling device as claimed in any of claims 1-3 wherein the flux box volumetric cavity is cylindrical.
9. A soil free hydrocarbon flux sampling device as claimed in any of claims 1-3 wherein a handle is provided above the outside of the volumetric cavity of said flux box.
10. A soil free hydrocarbon flux sampling device as claimed in any of claims 1-3 wherein the flux box volumetric cavity is made of high strength aircraft aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810794486.9A CN110736649A (en) | 2018-07-19 | 2018-07-19 | soil free hydrocarbon flux sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810794486.9A CN110736649A (en) | 2018-07-19 | 2018-07-19 | soil free hydrocarbon flux sampling device |
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| Publication Number | Publication Date |
|---|---|
| CN110736649A true CN110736649A (en) | 2020-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810794486.9A Pending CN110736649A (en) | 2018-07-19 | 2018-07-19 | soil free hydrocarbon flux sampling device |
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| CN (1) | CN110736649A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929117A (en) * | 2020-09-29 | 2020-11-13 | 中国农业科学院农业环境与可持续发展研究所 | Methane monitoring device |
| CN113029850A (en) * | 2021-03-16 | 2021-06-25 | 温氏食品集团股份有限公司 | Device and method for measuring relative water evaporation capacity of surface of fermentation material |
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| US20090139307A1 (en) * | 2004-12-08 | 2009-06-04 | Li-Cor, Inc. | Vent and soil flux measurement system |
| JP2013185867A (en) * | 2012-03-06 | 2013-09-19 | Fuji Electric Co Ltd | Detector for infrared gas analyser |
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| CN204832178U (en) * | 2015-06-30 | 2015-12-02 | 中国科学院成都生物研究所 | Soil gaseous emission normal position measuring device |
| CN205449593U (en) * | 2015-12-22 | 2016-08-10 | 北京高能时代环境技术股份有限公司 | Soil organic matter sampling device |
| CN205749472U (en) * | 2016-07-13 | 2016-11-30 | 广州中国科学院沈阳自动化研究所分所 | Boats and ships monitoring of hazardous gas system |
| CN206002357U (en) * | 2016-08-31 | 2017-03-08 | 福建师范大学 | A kind of height-adjustable portable greenhouse gas sample static chamber |
| CN106525135A (en) * | 2016-11-30 | 2017-03-22 | 中国科学院大气物理研究所 | Enclosed type automatic observation box for substance flux |
| CN206835126U (en) * | 2017-06-29 | 2018-01-02 | 成都贝尔通讯实业有限公司 | A kind of home gateway with expansion interface |
-
2018
- 2018-07-19 CN CN201810794486.9A patent/CN110736649A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090139307A1 (en) * | 2004-12-08 | 2009-06-04 | Li-Cor, Inc. | Vent and soil flux measurement system |
| CN101162225A (en) * | 2007-11-13 | 2008-04-16 | 中国科学院水利部水土保持研究所 | Portable soil respiration measuring air cell |
| JP2013185867A (en) * | 2012-03-06 | 2013-09-19 | Fuji Electric Co Ltd | Detector for infrared gas analyser |
| CN103513601A (en) * | 2012-06-29 | 2014-01-15 | 中国科学院大连化学物理研究所 | Sampling end control system of automatic continuous sampling equipment for dioxin in incineration flue gas |
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| CN205449593U (en) * | 2015-12-22 | 2016-08-10 | 北京高能时代环境技术股份有限公司 | Soil organic matter sampling device |
| CN205749472U (en) * | 2016-07-13 | 2016-11-30 | 广州中国科学院沈阳自动化研究所分所 | Boats and ships monitoring of hazardous gas system |
| CN206002357U (en) * | 2016-08-31 | 2017-03-08 | 福建师范大学 | A kind of height-adjustable portable greenhouse gas sample static chamber |
| CN106525135A (en) * | 2016-11-30 | 2017-03-22 | 中国科学院大气物理研究所 | Enclosed type automatic observation box for substance flux |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929117A (en) * | 2020-09-29 | 2020-11-13 | 中国农业科学院农业环境与可持续发展研究所 | Methane monitoring device |
| CN113029850A (en) * | 2021-03-16 | 2021-06-25 | 温氏食品集团股份有限公司 | Device and method for measuring relative water evaporation capacity of surface of fermentation material |
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Application publication date: 20200131 |