CN102012330A - Trace gas extracting and collecting device for geochemically prospecting oil gas and using method - Google Patents
Trace gas extracting and collecting device for geochemically prospecting oil gas and using method Download PDFInfo
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- CN102012330A CN102012330A CN2009101701385A CN200910170138A CN102012330A CN 102012330 A CN102012330 A CN 102012330A CN 2009101701385 A CN2009101701385 A CN 2009101701385A CN 200910170138 A CN200910170138 A CN 200910170138A CN 102012330 A CN102012330 A CN 102012330A
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Abstract
The invention relates to a trace gas extracting and collecting device for geochemically prospecting oil gas and a using method. The trace gas extracting and collecting device comprises a manual pump, a one-way valve, a switcher, a gas cylinder, a needle head and a gas path. The gas extracting and collecting device solves the problems that the closure property of gas is poor in the acquisition process of soil gas and the capillary is blocked due to the water return effect in the negative pressure exhaust gas extraction method. By using the device, the soil gas can be conveniently and efficiently collected by matching with a soil gas spiral drill, the gas in a container can be converted efficiently and the requirement on scientific research can be met. The device has favorable gas fetching quality, is simple for operation and convenient for maintenance and can meet the field construction requirement for acquiring geochemically-chemical gas.
Description
Technical field
The invention belongs to gas geochemistry research and application.Be particularly related to a kind of oil and gas geochemical exploration minimum gas is taken out, gas extractor is gathered gas in the soil device and using method.
Background technology
In carrying out gas geochemistry research and using, need a kind ofly to take out, gas extractor gathers the gas in the soil.At present in actual applications, all be to utilize principle of negative pressure, with the gas in the syringe extraction collector, injecting gas is preserved in the container; Perhaps extracting gases is preserved the liquid in the container, under the effect of negative pressure, the gas in the collector is flowed in the preservation container.
In addition, in non-hydrocarbon gas geochemical prospecting technical method research is studied with application item, need a kind of gas to collect transfer device, so that with a kind of geochemistry gas from the first container, be converted in another container, and must not in the first container, inject liquid, can carry out other experiment to guarantee the non-pneumatic sample in the first container.
The air extractor that has utility function at present has manually to take out and fills dual-purpose air pump, manually manyly use air pump, is a kind of portable manual air pump of inflating and vacuumizing two kinds of functions that has.And simple injector for medical purpose.
Prior art CN93243594.7 discloses a kind of " automatic switch valve two mode sampling thiefs ".This patent is mainly used in and cooperates gas detecting tube to carry out gas detection, can cooperate gas bottle to carry out gas collection, can satisfy under the sufficient state of gas and gather requirement, can directly cooperate gas detecting tube to carry out gas detection.But the defective of this patent is: no liquid supercharging passage, can't reduce the dead volume between pump and valve; Under the situation that in bottle, does not add liquid, can change the gas in the bottle, be transformed into certain negative pressure, just can not go on.
Prior art CN200520047133.0 discloses a kind of " gas sampler ".This patent is applicable to that direct check and analysis use, and need not liquid supercharging passage, and the size of dead volume is mainly decided on the vacuum pump performance, can extraction flask in negative-pressure gas advance instrumental analysis.But this patent does not possess direct cooperation gas detecting tube carries out the gas detection function, is not suitable for open-air gas collecting, and a plurality of manually-operated gate pilot-gas of this technology are adopted, the collection process, complex operation.
In sum, prior art mainly has problems and is:
1. utilize in the negative pressure method that the syringe extracting gases preserves that liquid in the container is taken out, in the gas collection process, liquid in the container very easily is back to pump-line, cause line clogging easily, we just usually are subjected to the puzzlement of this problem in the gatherer process of free hydrocarbon gas.
2. general gas air extractor is certainly existing some gas spaces, carries out with regard to making that some minimum gas are taken out, in the collection process, and the gas that these spaces are occupied is not used, thereby lowers efficiency, even does not reach the purpose of experimental study.
Summary of the invention
At the problem that prior art exists, invention provides that a kind of manual pump is taken out, gas extractor, cooperates the ground vapour spiral drill, can make things convenient for, collect efficiently gas in the earth.And can change gas in the container efficiently, satisfy the needs of research and production.
A kind of oil and gas geochemical exploration minimum gas of one of the present invention is taken out, gas extractor is achieved in that
A kind of oil and gas geochemical exploration minimum gas is taken out, gas extractor, comprises manual pump 1, gas bottle 6, syringe needle 7 and connecting line, it is characterized in that:
Described oil and gas geochemical exploration minimum gas is taken out, gas extractor comprises that manual pump takes out, presses dual circuit liquid supercharging passage.
Described manual pump is taken out and is pressed dual circuit liquid supercharging passage to comprise switch 2, gas circuit retaining valve 4 and liquid road retaining valve 3 and connecting line composition;
Described switch 2 endpiece connect manual pump 1, the switch 2 inlet ends gas channels that following two passage: a. are made of air intake opening 10, gas circuit retaining valve 4 that is connected in parallel respectively; B. the gas channels that constitutes by inlet 9, liquid road retaining valve 3.
In concrete enforcement,
Described manual pump 1 is taken out and is pressed dual circuit liquid supercharging passage also to comprise the retaining valve 5 that is connected with switch 2 endpiece, through manual pump 1 extract enter pipeline fluid again after manual pump 1 pushes, enter gas bottle 6 by retaining valve 5, gas collection pin 7 successively.
Described switch 2 is three road two way cock valves of any one good seal performance, promptly in the initial position situation, gas can pass through air intake opening 10, and retaining valve 4 and switch 2 form path, and can not flow by switch 2 through the liquid on liquid road 9.When switch 2 forwarded the another location to, the situation that flows in gas, liquid road was opposite, and liquid can flow in pipeline, and gas can not flow.
Described gas collection pin 7 is the pumping needle that can link to each other with pipeline, can be that transfusion needle one end joins by flexible pipe and gas circuit, and the other end thrusts in the rubber stopper of gas bottle; It also can be the normal injection pin.
A kind of oil and gas geochemical exploration minimum gas of two of the present invention is taken out, the using method of gas extractor is achieved in that
A kind of oil and gas geochemical exploration minimum gas of the present invention is taken out, the use of gas extractor the steps include:
(1) air intake opening 10 that will link to each other with gas circuit retaining valve 4 is connected to the capillary outlet of container to be bled or ground vapour spiral drill, and rotate cross-over valve 2 gas circuit retaining valve 4 is communicated with manual pump 1, pulling manual pump 1 piston, gas enters the pump housing by retaining valve 4;
(2) extruding manual pump 1 piston, retaining valve 4 is closed automatically, retaining valve 5 conductings, gas enters in the gas bottle, and liquid in the bottle is squeezed gas bottle by liquid outlet 8, reaches the purpose of taking out gas collection;
(3) when switch 2 being forwarded to when making retaining valve 3 be communicated with the position with the pump housing, pulling manual pump 1 piston, liquid enters the pump housing by retaining valve 3, extruding manual pump 1 piston, retaining valve 3 is closed automatically, retaining valve 5 conductings, and gas is pressed in the gas bottle 6, tension and compression piston repeatedly repeatedly, the dead volume in the pump will all be the filling of liquid institute.
Characteristics of the present invention: dual circuit liquid supercharging passage has reduced the dead volume of getting in the air pump apparatus system effectively, improved take out, the performance of gas collection.Manual pump is taken out, gas extractor has two fluid admission passages, be respectively air inlet and feed pathway, each passage is by the flow direction of a retaining valve control fluid, two passages keep and being communicated with or disconnection of air pump system by switch, suck liquid by fluid passage pulling piston, propelling piston is extruded gas by liquid again, and the reduction manual pump is taken out, the purpose of the interior dead volume of gas extractor thereby reach.
Cooperating spiral to drill through in the gas process, utilize These characteristics, reach high-quality emptying effect easily, and in the humid area, under the less situation of tolerance, a small amount of gas valuable in the gas extractor can be caught up with in the gas bottle, improved the gas collection effect, because the effect of retaining valve, and the gas collection process is to inject by gas, liquid is driven out of from gas bottle, avoided the liquid in the gas bottle under the draining water gathering of gas law situation to reflux easily and entered the stopping state that kapillary took place of " ground vapour spiral drill ", improved the work efficiency of taking out gas collection.
In the gas process in the conversion container, utilize These characteristics, the pressure of gas reduces in container, when being drawn into gas in the pump and being difficult to squeeze into gas bottle,, suck liquid by being transformed into the liquid paths, utilize liquid that gas in the pump is expressed in the gas bottle, improve conversion efficiency.
Good effect of the present invention is:
Gas of the present invention is taken out, gas extractor, had manually, take out and fill characteristic dual-purpose and two-circuit liquid supercharging, guaranteed in the gas collecting process, cooperate underground gas collection spiral drill can collect high-quality gas, the very useful gas of a cover is adopted, acquisition means for applying of gas geochemistry provides.
In the gas-operated in the conversion container, high efficient and reliable.
Utilize that the present invention develops take out, gas extractor, will " non-hydrocarbon gas geochemical prospecting technical method research with use " project in gas in 56 bottled soil all produce, send chromatogram analysis, finished the project preset task.
Utilize this device that helium in the bottle is constantly extracted and change in several bottles, the helium that extracts with water feeding method is analyzed experiment, and the reliability of apparatus of the present invention has been described.
The gas of being developed is taken out, gas extractor, can make to wait that the interior vacuum tightness of taking out gas bottle reaches-0.1 (mechanical vacuum table mensuration).
Be applied to the taking out of gas in all earth, gas collection process, the scope of application mainly contains oil and gas geochemical exploration, metal geochemical exploration, soil investigation, environmental protection tests.Its application prospect is good.
Be applicable under the non-fluid injection situation and the gas in the container changed the into operation of another container.
Description of drawings
Fig. 1 oil and gas geochemical exploration minimum gas is taken out, the gas extractor synoptic diagram
Among the figure: 1 manual pump, 2 switches, 3 retaining valves, 4 retaining valves, 5 retaining valves, 6 gas bottles, 7 gas collection pins, 8 liquid outlets, 9 inlets, 10 air intake openings
Embodiment
Embodiment:
The oil and gas geochemical exploration minimum gas that utilizes the present invention to develop is taken out, gas extractor, the gas in 56 bottled soil in the research of non-hydrocarbon gas geochemical prospecting technical method and the application item is all produced, send chromatogram analysis, finished the project preset task.
For the reliability of explanation gas conversion, carried out following experiment, the experimental result explanation, transfer process does not exist extraneous gas to enter situation, the reliable in quality of conversion.
Demonstration test explanation: the helium 80ml for preparing is housed in the saline bottle of a 100ml, divide in the vaccine that 3 times gas in the bottle is converted into 3 25ml, the gas of changing out has 55ml approximately, extracting 8ml gas again from the 100ml bottle out directly injects the helium survey instrument and detects, the gas that conversion is advanced in the vaccine bottle detects then, the result compares with not changing preceding sample as shown in Table, and it measures numerical value is highly consistent.
| Sequence | Helium concentration | Remarks |
| S0 | 116.80 | Not before the conversion |
| S1 | 117.07 | Direct injected |
| S2 | 115.67 | For the third time |
| S3 | 114.5 | For the second time |
| S4 | 116.8 | For the first time |
The oil and gas geochemical exploration minimum gas of being developed is taken out, gas extractor, can make that vacuum tightness reaches-0.1 (mechanical vacuum table mensuration) in the bottle of the body of waiting to bleed.
Claims (6)
- An oil and gas geochemical exploration minimum gas take out, gas extractor, comprise manual pump (1), gas bottle (6), syringe needle (7) and connecting line, it is characterized in that:Described gas is taken out, gas extractor comprises that manual pump takes out, presses dual circuit liquid supercharging passage.
- 2. oil and gas geochemical exploration minimum gas as claimed in claim 1 is taken out, gas extractor, it is characterized in that:Described manual pump is taken out and is pressed dual circuit liquid supercharging passage to comprise switch (2), gas circuit retaining valve (4) and liquid road retaining valve (3) and connecting line composition;Described switch (2) endpiece connects manual pump (1), switch (2) the inlet end gas channels that following two passage: a. are made of air intake opening (10), gas circuit retaining valve (4) that is connected in parallel respectively; B. the gas channels that constitutes by inlet (9), liquid road retaining valve (3).
- 3. oil and gas geochemical exploration minimum gas as claimed in claim 2 is taken out, gas extractor, it is characterized in that:Described manual pump (1) is taken out and is pressed dual circuit liquid supercharging passage also to comprise the retaining valve (5) that is connected with switch (2) endpiece, through manual pump (1) extract enter pipeline fluid again after manual pump (1) extruding, enter gas bottle (6) by retaining valve (5), gas collection pin (7) successively.
- 4. oil and gas geochemical exploration minimum gas as claimed in claim 3 is taken out, gas extractor, it is characterized in that:Described switch (2) is a kind of three road two way cock valves with sealing property.
- 5. oil and gas geochemical exploration minimum gas as claimed in claim 3 is taken out, gas extractor, it is characterized in that:Described gas collection pin (7) is the pumping needle that links to each other with pipeline, and the one end joins by flexible pipe and gas circuit, and the other end thrusts in the rubber stopper of gas bottle.
- As the described oil and gas geochemical exploration minimum gas of one of claim 1～5 take out, the using method of gas extractor, it is characterized in that:1. the air intake opening (10) that will link to each other with gas circuit retaining valve (4) is connected to the capillary outlet of container to be bled or ground vapour spiral drill, rotating cross-over valve (2) makes gas circuit retaining valve (4) be communicated with manual pump (1), pulling manual pump (1) piston, gas enters the pump housing by retaining valve (4);2. push manual pump (1) piston, retaining valve (4) is closed automatically, retaining valve (5) conducting, and gas enters in the gas bottle, and liquid in the bottle is squeezed gas bottle by liquid outlet (8), reaches the purpose of taking out gas collection;3. when being forwarded to, switch (2) make retaining valve (3) when being communicated with the position with the pump housing, pulling manual pump (1) piston, liquid enters the pump housing by retaining valve (3), extruding manual pump (1) piston, retaining valve (3) is closed automatically, retaining valve (5) conducting, and gas is pressed in the gas bottle (6), tension and compression piston repeatedly repeatedly, the dead volume in the pump will all be the filling of liquid institute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910170138 CN102012330B (en) | 2009-09-04 | 2009-09-04 | Trace gas extracting and collecting device for geochemically prospecting oil gas and using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910170138 CN102012330B (en) | 2009-09-04 | 2009-09-04 | Trace gas extracting and collecting device for geochemically prospecting oil gas and using method |
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| CN102012330A true CN102012330A (en) | 2011-04-13 |
| CN102012330B CN102012330B (en) | 2013-03-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778367A (en) * | 2012-08-06 | 2012-11-14 | 北京雪迪龙科技股份有限公司 | Sampling device for water quality dilution and control method thereof |
| CN105699136A (en) * | 2016-01-28 | 2016-06-22 | 东南大学 | Unsaturated zone gas multi-point instant and synchronous sampling device for polluted soil column test |
| CN109459280A (en) * | 2018-09-12 | 2019-03-12 | 国家电网有限公司 | A kind of transformer methane gas site sampling device and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973657B (en) * | 2016-07-17 | 2018-09-11 | 中国科学院寒区旱区环境与工程研究所 | Ice core wraps up gas extraction device |
-
2009
- 2009-09-04 CN CN 200910170138 patent/CN102012330B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778367A (en) * | 2012-08-06 | 2012-11-14 | 北京雪迪龙科技股份有限公司 | Sampling device for water quality dilution and control method thereof |
| CN105699136A (en) * | 2016-01-28 | 2016-06-22 | 东南大学 | Unsaturated zone gas multi-point instant and synchronous sampling device for polluted soil column test |
| CN105699136B (en) * | 2016-01-28 | 2018-07-17 | 东南大学 | Pollute soil-column test unsaturation band gas multi-point transient synchronized sampling unit |
| CN109459280A (en) * | 2018-09-12 | 2019-03-12 | 国家电网有限公司 | A kind of transformer methane gas site sampling device and method |
| CN109459280B (en) * | 2018-09-12 | 2021-03-23 | 国家电网有限公司 | Transformer gas on-site sampling device and method |
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| CN102012330B (en) | 2013-03-06 |
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