CN203249917U - Monitoring device for soil gas multi-component accumulation emission in CO2 oil displacement region - Google Patents
Monitoring device for soil gas multi-component accumulation emission in CO2 oil displacement region Download PDFInfo
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- CN203249917U CN203249917U CN 201320176673 CN201320176673U CN203249917U CN 203249917 U CN203249917 U CN 203249917U CN 201320176673 CN201320176673 CN 201320176673 CN 201320176673 U CN201320176673 U CN 201320176673U CN 203249917 U CN203249917 U CN 203249917U
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Abstract
A monitoring device for soil gas multi-component accumulation emission in a CO2 oil displacement region comprises a sampling cover, a water stopping clamp, a flexible tube, a utensil, saturated salt water or clear water, a glass tube and an opening utensil, and is characterized in that a gas outlet of the sampling cover is connected with one horizontal end of a tee through the flexible tube and the water stopping clamp, the other horizontal end of the tee is connected with an inlet of the utensil, a vertical end is connected with an inlet of a gas component analysis instrument, an outlet of the gas component analysis instrument is connected with an inlet of the sampling cover, and an outlet of the utensil is connected with the opening utensil through the glass tube which is inserted to the bottom of the utensil. With the adoption of the monitoring device, reliable data is provided for developing an effective scheme of sealing and storing CO2 in soil gas in the CO2 oil displacement region, and the sealing and storing effect of CO2 is monitored.
Description
Technical field
The utility model relates to a kind of CO of being applicable to
2The monitoring device of displacement of reservoir oil regional soil gas polycomponent cumulative release amount solves CO
2The soil gas monitoring problem in displacement of reservoir oil zone is formulated and is sealed CO up for safekeeping
2Effective scheme, and the monitoring CO
2Seal effect up for safekeeping.
Background technology
Under the international large situation that the GHG emissions mitigation cry grows to even greater heights, can realize simultaneously the carbon-dioxide flooding Plugging Technology Applied (CO of economic benefit and environmental benefit doulbe-sides' victory
2-EOR) receive much concern CO
2The security of-EOR, whether to have persistence, the property monitored and operability in environmental protection be the key factor that promotes the extensive development of this technology.In order to assess CO
2The risk of leakage that the displacement of reservoir oil is sealed up for safekeeping is carried out environmental monitoring work and mainly is divided into underground seismic monitoring and simulation of water quality, soil gas monitoring, vegetation and the ground deformation on earth's surface, subaerial atmospheric surveillance etc. according to space structure.Part CO in the soil gas
2Belong to deep layer CO
2Compile, belong to again Atmospheric CO
2One of source, affect simultaneously the growth of surface vegetation, soil gas CO
2The information that emission performance comprises is the abundantest also the most complicated, but no matter from cost and the exploitativeness of monitoring, or the soil gas monitoring has more advantage on public cognitive, the acceptance level.Soil gas CO
2Flux is to judge deep layer CO
2One of index of revealing also is to estimate CO
2The amount of sealing up for safekeeping, CO
2The important parameter of the clean production mechanism that the displacement of reservoir oil is sealed up for safekeeping, therefore, rather important to the long Measurement accuracy of soil gas flux.
The method of monitoring soil gas flux is a lot of at present, and it is alkali absorb method that the first is measured the traditional method of soil respiration, namely absorbs the CO that the certain area soil surface of demarcation discharges by alkali lye (NaOH or KOH) or soda-lime in the certain hour interval
2, belong to the static chamber method.Its advantage is can be for a long time, the multi-site determination soil carbon flux: shortcoming is to carry out METHOD FOR CONTINUOUS DETERMINATION in the short time, and the degree of depth, alkali liquor absorption area, the alkali lye that inject soil such as alkali lye consumption, respiratory chamber all can affect its measuring accuracy apart from factors such as floor level and respiratory chamber height, and the measurement result variability is larger; The second is static chamber+gas concentration method, utilize airtight static chamber to collect the gas that soil surface discharges, by the greenhouse gas concentration in the gas chromatographic technique analysis mensurated gas composition, utilize the interior greenhouse gas concentration of static chamber over time, calculate the method for Soil Trace Gases drainage rate, belong to the static chamber method.This method is present widely used, economic reliably flux measurement method in the world.Its shortcoming is in the growth busy season, because a large amount of CO
2Overflow and concentration is raise, limited CO in the soil
2Overflow.In order to guarantee long-time mensuration, and avoid CO in the sampling box
2Overflowing of the higher inhibition soil gas of concentration developed a kind of CO of being applicable to
2The monitoring method of regional soil gas polycomponent accumulation discharge capacity is sealed in the displacement of reservoir oil up for safekeeping.
Summary of the invention
The purpose of this utility model provides a kind of CO
2Monitoring method and the device of displacement of reservoir oil regional soil gas polycomponent cumulative release amount overcome the defective that above-mentioned prior art exists.
The technical solution of the utility model is achieved in the following ways:
CO of the present utility model
2The monitoring device of displacement of reservoir oil regional soil gas polycomponent Cumulative release amount comprises sample cover, tongs, flexible pipe, vessel, saturated aqueous common salt or clear water, glass tube and uncovered vessel, it is characterized in that the sample cover gas outlet is connected with the horizontal ends of threeway with tongs by flexible pipe, another horizontal ends of threeway is connected with the import of vessel, vertical end is connected with the import of gas composition analyser, the outlet of gas composition analyser is connected with the import of sample cover, and the outlet of vessel is connected with uncovered vessel by the glass tube that is inserted at the bottom of the vessel.
Sample cover is made as semicircular arc, and the top is provided with an air outlet adapter and an inlet suction port, and end circumference is made as the pointed cone mouth.
Vessel are made as to be with graduated cylindrically, and top middle part is provided with an inlet suction port, and the next door of inlet suction port is provided with a fluid joint, and the fluid joint is inserted into the bottom of vessel by glass tube.
The utility model is the method for replacing saturated aqueous common salt or clear water by soil gas, calculates CO
2The soil tolerance that displacement of reservoir oil zone outwards discharges and each component concentration of measuring soil gas by the gas composition analyser; Sample cover is buckled in CO
2The top layer of displacement of reservoir oil regional soil, by flexible pipe with the gas outlet of sample cover be with graduated vessel import to couple together and couple together by threeway and the import of gas composition analyser, the outlet of gas composition analyser couples together with the import of sample cover, the advanced vessel of soil gas are replaced saturated aqueous common salt or the clear water in the vessel, saturated aqueous common salt or clear water glass tube and the flexible pipe at the bottom of be inserted into vessel flows to the uncovered vessel of another one, calculate the accumulative total tolerance that soil gas discharges by the saturated aqueous common salt on the vessel or clear water decline scale, measure each component concentration of soil gas by gas analyzer, also can be directly measure online the burst size of soil gas moment and the content of each component by the gas composition analyser.
The utility model and portable soil gas CO
2Analyser is compared has some advantage: 1, cost is low, and is not subjected to the restriction of device power supply (DPS) duration.CO
2The displacement of reservoir oil is sealed the zone up for safekeeping and usually is chosen in meagrely-populated area, portable soil gas CO
2The time of analyser continuous working is generally 6-8h, and the field monitoring run duration is long, and the utility model is opened gas collecting and Analyze ﹠ separate, and gas collecting device does not need power supply; 2, realized the multi-component analysis of soil gas.CO
2In case process CO is sealed in the displacement of reservoir oil up for safekeeping
2Be discharged into ground by soil, usually can carry other gas, especially methane, the discharge capacity of therefore monitoring methane helps Analysis for CO
2Emission performance, judge CO
2The source.The utility model can be collected except CO by the method for row's saturated aqueous common salt
2Other gases in addition comprise methane, micromolecular hydro carbons; 3, realized CO
2The soil gas polycomponent accumulation discharge capacity in the process Life cycle is sealed in the displacement of reservoir oil up for safekeeping.At CO
2The displacement of reservoir oil is sealed up for safekeeping in the project, to soil gas CO
2The common monitoring frequency of discharge capacity is 1 time/month, and soil gas CO
2Discharge capacity is subjected to the interference of several factors, such as soil moisture content, temperature etc., therefore whether 1 time Monitoring Data can represent 1 month average level and remain further research and confirming, and the utility model can be collected the discharge capacity of soil gas continuously, realize the monitoring of the long-time semi-invariant of gas, monitor more accurately gas purging amount in the soil.
Description of drawings
Fig. 1-structural representation of the present utility model;
1-sample cover among the figure, 2,3,6,7, the 8-tongs, 4-flexible pipe, 5-threeway, 9-glass tube, 10-vessel, 11-saturated aqueous common salt or clear water, the uncovered vessel of 12-.
Embodiment
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description:
The utility model is the method for replacing saturated aqueous common salt or clear water by soil gas, calculates CO
2Displacement of reservoir oil zone outwards discharges soil tolerance and measures each component concentration of soil gas by the gas composition analyser; Sample cover is buckled in CO
2The top layer of displacement of reservoir oil regional soil, by flexible pipe with the gas outlet of sample cover be with graduated vessel import to couple together and couple together by threeway and the import of gas composition analyser, the outlet of gas composition analyser couples together with the import of sample cover, the advanced vessel of soil gas are replaced saturated aqueous common salt or the clear water in the vessel, saturated aqueous common salt or clear water glass tube and the flexible pipe at the bottom of be inserted into vessel flows to the uncovered vessel of another one, calculate the accumulative total tolerance that soil gas discharges by the saturated aqueous common salt on the vessel or clear water decline scale, measure each component concentration of soil gas by gas analyzer, also can be directly measure online the burst size of soil gas moment and the content of each component by the gas composition analyser.
CO of the present utility model
2The monitoring device of displacement of reservoir oil regional soil gas polycomponent Cumulative release amount comprises sample cover 1, tongs, flexible pipe 4, vessel 10, saturated aqueous common salt or clear water 11, glass tube 9 and uncovered vessel 12, it is characterized in that sample cover 1 gas outlet is connected with the horizontal ends of tongs with threeway 5 by flexible pipe 4, another horizontal ends of threeway 5 is connected with the import of vessel 10, vertical end is connected with the import of gas composition analyser, the outlet of gas composition analyser is connected with the import of sample cover, and the outlet of vessel 10 is connected with uncovered vessel 12 by the glass tube that is inserted at the bottom of the vessel.
Example 1: soil discharges semi-invariant and each component analysis monitoring;
Close tongs 3,6, open tongs 2,7,8, the soil gas that sample cover 1 is collected enters vessel 10, and saturated aqueous common salt enters uncovered vessel 12 along glass tube 9; Scale by vessel 10 can be read the gas buildup amount, then close tongs 2, the gas composition analyser is connected with tongs 6 usefulness flexible pipes, open tongs 6, the gas composition analyser gathers the gas of vessel 10, saturated aqueous common salt in the uncovered vessel 12 slowly flows into vessel 10, flows into analyser for fear of liquid, in time close tongs 7.
Example 2: online moment soil gas burst size and the monitoring of each component: close tongs 7, tongs 2,3 and 6 is opened, gas composition analyser air intake opening connects tongs 6 with flexible pipe, the gas outlet connects tongs 3 with flexible pipe, can monitor the emission flux of each component of soil gas in period moment.
Claims (3)
1. CO
2The monitoring device of displacement of reservoir oil regional soil gas polycomponent cumulative release amount, comprise sample cover, tongs, flexible pipe, vessel, saturated aqueous common salt or clear water, glass tube and uncovered vessel, it is characterized in that the sample cover gas outlet is connected with the horizontal ends of threeway with tongs by flexible pipe, another horizontal ends of threeway is connected with the import of vessel, vertical end is connected with the import of gas composition analyser, the outlet of gas composition analyser is connected with the import of sample cover, and the outlet of vessel is connected with uncovered vessel by the glass tube that is inserted at the bottom of the vessel.
2. CO according to claim 1
2The monitoring device of displacement of reservoir oil regional soil gas polycomponent cumulative release amount, it is characterized in that: sample cover is made as semicircular arc, and the top is provided with an air outlet adapter and an inlet suction port, and end circumference is made as the pointed cone mouth.
3. CO according to claim 1
2The monitoring device of displacement of reservoir oil regional soil gas polycomponent cumulative release amount, it is characterized in that: vessel be made as be with graduated cylindrical, the middle part, top is provided with an inlet suction port, and the next door of inlet suction port is provided with a fluid joint, and the fluid joint is inserted into the bottom of vessel by glass tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320176673 CN203249917U (en) | 2013-04-10 | 2013-04-10 | Monitoring device for soil gas multi-component accumulation emission in CO2 oil displacement region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320176673 CN203249917U (en) | 2013-04-10 | 2013-04-10 | Monitoring device for soil gas multi-component accumulation emission in CO2 oil displacement region |
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| Publication Number | Publication Date |
|---|---|
| CN203249917U true CN203249917U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320176673 Expired - Fee Related CN203249917U (en) | 2013-04-10 | 2013-04-10 | Monitoring device for soil gas multi-component accumulation emission in CO2 oil displacement region |
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| CN (1) | CN203249917U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235104A (en) * | 2013-04-10 | 2013-08-07 | 中国石油化工股份有限公司 | A monitoring method for the soil gas multicomponent cumulative release amount of a CO2 displacement area and a device therefor |
| CN109238807A (en) * | 2018-11-14 | 2019-01-18 | 南京信息工程大学 | Soil incubation and high-resolution original position gas-liquid sampling apparatus and its test method |
-
2013
- 2013-04-10 CN CN 201320176673 patent/CN203249917U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235104A (en) * | 2013-04-10 | 2013-08-07 | 中国石油化工股份有限公司 | A monitoring method for the soil gas multicomponent cumulative release amount of a CO2 displacement area and a device therefor |
| CN109238807A (en) * | 2018-11-14 | 2019-01-18 | 南京信息工程大学 | Soil incubation and high-resolution original position gas-liquid sampling apparatus and its test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150928 Address after: 100728 No. 22 North Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: Shandong Sairui Petroleum Technology Development Co.,Ltd. Address before: 100025 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: Shengli Oilfield Shengli Eexploration & Design Research Institute Co.,Ltd. Patentee before: Shandong Sairui Petroleum Technology Development Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |