CN102012330B - 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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- CN102012330B CN102012330B CN 200910170138 CN200910170138A CN102012330B CN 102012330 B CN102012330 B CN 102012330B CN 200910170138 CN200910170138 CN 200910170138 CN 200910170138 A CN200910170138 A CN 200910170138A CN 102012330 B CN102012330 B CN 102012330B
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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 gathers 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 exploration method research and application item research, need a kind of gas collection transfer device, so that with a kind of geochemistry gas from the first container, be converted in another container, and must not to filling liquid in the first container, can carry out other experiment to guarantee the non-pneumatic sample in the first container.
The air extractor that has at present utility function has manually to take out and fills dual-purpose air pump, and manual multiplex air pump is a kind of portable manual air pump that has inflation and vacuumize two kinds of functions.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 cooperating gas detecting tube to carry out gas and detects, and can cooperate gas bottle to carry out gas collection, can satisfy gathering requirement under the sufficient state of gas, can directly cooperate gas detecting tube to carry out gas and detect.But the defective of this patent is: the no liquid Pressure channel, can't reduce the dead volume between pump and valve; Gas in changing under the situation that does not add liquid in the bottle bottle is 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 the direct-detection analytical applications, need not the liquid Pressure channel, 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 gas detection function, is not suitable for open-air gas collecting, and a plurality of manually-operated gate control of this technology gas is adopted, the collection process, complex operation.
In sum, prior art mainly has problems and is:
1. utilize at 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, easily cause line clogging, we just usually are subject 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, with regard to so that carry out that some minimum gas are taken out, in the collection process, 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
For 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 efficiently gas in the container, 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 Pressure channel.
Described manual pump is taken out and is pressed dual circuit liquid Pressure channel to comprise that switch 2, air passage one-way valve 4 and liquid road retaining valve 3 and connecting line form;
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, air passage one-way valve 4 that is connected in parallel respectively; B. the gas channels that is consisted of by inlet 9, liquid road retaining valve 3.
In implementation,
Described manual pump 1 is taken out and is pressed dual circuit liquid Pressure channel 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, namely 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:
The air intake opening 10 that (1) will link to each other with air passage one-way valve 4 is connected to the capillary outlet of container to be bled or ground vapour spiral drill, and rotate cross-over valve 2 air passage one-way 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 autoshutdowns, 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 autoshutdowns, retaining valve 5 conductings, 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 Pressure channel has reduced effectively gets the intrasystem dead volume of air pump device, improved take out, the performance of gas collection.Manual pump is taken out, gas extractor has two fluid admission passages, 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, easily reach high-quality emptying effect, 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 pass through gas inject, liquid is driven out of from gas bottle, and the stopping state that the kapillary of having avoided the liquid in the gas bottle in the draining water gathering of gas law situation easily to reflux entering " ground vapour spiral drill " occurs has improved the work efficiency of taking out gas collection.
In the gas process in the conversion container, utilize These characteristics, when the pressure reduction of gas in container, when being drawn into gas in the pump and being difficult to squeeze into gas bottle, by being transformed into the liquid paths, suck liquid, utilize liquid with gas extrusion in the pump in gas bottle, improve conversion efficiency.
Good effect of the present invention is:
Gas of the present invention is taken out, gas extractor, have manually, take out and fill characteristic dual-purpose and the Double 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 " research of non-hydrocarbon gas geochemical exploration method with use " project in gas in 56 bottled soil all produce, send chromatogram analysis, finished the task that project is scheduled to.
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 developing is taken out, gas extractor, can make the interior vacuum tightness of gas bottle to be taken out reach-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 in the non-fluid injection situation gas in the container changed the operation into another container.
Description of drawings
Fig. 1 oil and gas geochemical exploration minimum gas is taken out, the gas extractor schematic 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 non-hydrocarbon gas geochemical exploration method research and the application item is all produced, send chromatogram analysis, finished the predetermined task of project.
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 approximately has 55ml, extracting again 8ml gas from the 100ml bottle out directly injects the helium survey instrument and detects, then the gas that conversion is advanced in the vaccine bottle detects, the result compares with not changing front 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 developing is taken out, gas extractor, can make the interior vacuum tightness of bottle of body to be bled reach-0.1 (mechanical vacuum table mensuration).
Claims (4)
- 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 Pressure channel;Described manual pump is taken out and is pressed dual circuit liquid Pressure channel to comprise that switch (2), air passage one-way valve (4) and liquid road retaining valve (3) and connecting line form;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), air passage one-way valve (4) that is connected in parallel respectively; B. the liquid paths that is consisted of by inlet (9), liquid road retaining valve (3);Described manual pump takes out, presses dual circuit liquid Pressure channel 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.
- Oil and gas geochemical exploration minimum gas as claimed in claim 1 take out, gas extractor, it is characterized in that:Described switch (2) is a kind of three road two way cock valves with sealing property.
- Oil and gas geochemical exploration minimum gas as claimed in claim 2 take 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 1～3 take out, the using method of gas extractor, it is characterized in that:The air intake opening (10) that (1) will link to each other with air passage one-way valve (4) is connected to the capillary outlet of container to be bled or ground vapour spiral drill, rotating cross-over valve (2) makes air passage one-way valve (4) be 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) autoshutdown, retaining valve (5) conducting, 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) autoshutdown, retaining valve (5) conducting, 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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| 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 CN102012330A (en) | 2011-04-13 |
| CN102012330B true CN102012330B (en) | 2013-03-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973657A (en) * | 2016-07-17 | 2016-09-28 | 中国科学院寒区旱区环境与工程研究所 | Ice core covered gas extraction device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778367B (en) * | 2012-08-06 | 2014-10-22 | 北京雪迪龙科技股份有限公司 | Control method of sampling device |
| 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 |
| 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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2009
- 2009-09-04 CN CN 200910170138 patent/CN102012330B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973657A (en) * | 2016-07-17 | 2016-09-28 | 中国科学院寒区旱区环境与工程研究所 | Ice core covered gas extraction device |
| 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 |
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| CN102012330A (en) | 2011-04-13 |
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