CN202362222U - Whole-course visualized gas content tester - Google Patents

Whole-course visualized gas content tester Download PDF

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Publication number
CN202362222U
CN202362222U CN201120465348XU CN201120465348U CN202362222U CN 202362222 U CN202362222 U CN 202362222U CN 201120465348X U CN201120465348X U CN 201120465348XU CN 201120465348 U CN201120465348 U CN 201120465348U CN 202362222 U CN202362222 U CN 202362222U
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CN
China
Prior art keywords
gas
graduated cylinder
content tester
visualized
gas collection
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CN201120465348XU
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Chinese (zh)
Inventor
张金川
唐玄
林腊梅
刘珠江
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张金川
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Priority to CN201120465348XU priority Critical patent/CN202362222U/en
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Publication of CN202362222U publication Critical patent/CN202362222U/en

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Abstract

The utility model relates to a whole-course visualized gas content tester which comprises a core desorbing kettle and a gas-collecting measuring cylinder, wherein the core desorbing kettle comprises a top cover connected in a sealing manner and a transparent kettle body made by adopting a toughened glass material; a gas exhaust hole is arranged on the top cover; the gas-collecting measuring cylinder comprises a transparent cylinder body marked with scales and a cylinder bottom provided with a through hole and a water drainage hole; the through hole of the gas-collecting measuring cylinder is in sealing connection with the gas exhaust hole of the core desorbing kettle. The whole-course visualized gas content tester is higher in measurement accuracy, smaller in volume, simpler in structure and visual and visible in the desorption process.

Description

Visualized air content tester

Technical field

The utility model relates to a kind of rock adsorbed gas content proving installation, particularly relates to a kind of visualized air content tester.

Background technology

The ADSORPTION STATE rock gas is prevalent in rock and other preserve in the medium, and for shale gas and coal-seam gas, the air content test is indispensable, and the shale air content can reach 20%-80%, and coal-bed gas content is more up to 80%-99%; For other mines of possibility gassiness, the formation gas bearing amount also can reach more than 20%.No matter be as the useful rock gas of exploiting purpose, still, apparent important to the research and the test day of these adsorbed gas as " being harmful to " rock gas of prevention forecast.

The rock gas desorption experiment is the experiment that is used for testing adsorbed gas content in the gas-bearing reservoir sample.Though rock gas adsorbed gas content test experiments is widely used in the natural gas exploration and development process; But owing to cost an arm and a leg, effects limit such as the directly perceived and measuring accuracy of complicated operating process, desorption process, present air content test can not satisfy still that reality is produced and the demand of teaching and scientific research.

The applicant discloses a kind of adsorbed gas content measuring instrument and experimental technique thereof in No. 201010137275.1 Chinese patents of application on April 1st, 2010; This measuring instrument comprises sealable tank, gas collection graduated cylinder and experimental box; Sealable tank is provided with valve port; The air hole switch valve that the gas collection graduated cylinder is provided with the osculum variable valve and matees with valve port mainly contains heating element and temperature controller in the experimental box.During measurement; In sealable tank, pack into earlier gassiness sample and saturated brine and sealing, dress water and heating in experimental box is put into the experimental box water-bath with sealable tank; The saturated brine of in the gas collection graduated cylinder, packing into; Connected set tolerance tube and sealable tank are also opened the osculum of gas collection graduated cylinder, the liquid level position in the record set tolerance tube, and experiment finishes to break off and is communicated with.This patent equipment compact conformation, volume is little, impermeability good, measurement is accurate, be convenient to move and carry, be fit to that field condition uses, homogeneous heating; And experimental technique is easy to operate simple, can be specifically designed to all gases especially collection and the measurement of small size gas.

But above-mentioned existing adsorbed gas content testing apparatus still exists certain defective and improvements at different aspect, mainly shows as:

1, the device measuring precision is still waited to improve, particularly when the less time error of air content serious, promptly behind stripping gas (principal ingredient is a methane) entering test macro; The desorb space is big because gas desorption quantity is few; Make desorption quantity and gas componant be difficult to accurate mensuration, the equipment that has is owing to have than long duct, and the original air of stripping gas and internal system mixes; When collecting stripping gas; Being easy to cause stripping gas to remain in the system, when gas desorption quantity is small, is zero through the methane composition in the desorption gas of this systematic collection probably at last particularly;

2, equipment volume is bigger, and less stable involves great expense, and operability is not strong in the test at the scene;

3, when testing quantity more simultaneously, be not easy to a plurality of tests and carry out simultaneously, repeated sampling, revision test realize difficulty;

4, the separating cucurbitula and be connected valve port and be opaque material of instrument, so the desorb that in jar, takes place of sample changes and the situation of giving vent to anger can't observe directly.

This shows; Above-mentioned existing adsorbed gas content measuring equipment still has demands improvements urgently; How to found that a kind of measuring accuracy is higher, volume is littler, structure is simpler and the visualized air content tester of the new structure that desorption process is directly perceived, visual, is one of improvement target of current industry.

The utility model content

The technical matters that the utility model will solve provides a kind of visualized air content tester, makes that its measuring accuracy is higher, volume is littler, structure is simpler and desorption process is directly perceived, visual.

For solving the problems of the technologies described above; A kind of visualized air content tester of the utility model comprises that core separates cucurbitula and gas collection graduated cylinder, and wherein: rock core is separated cucurbitula; Comprise top cover that is tightly connected and the transparent tank body that adopts the tempered glass material, and on top cover, be provided with vent port; The gas collection graduated cylinder comprises the transparent cylindrical shell that indicates scale and is provided with air hole and the tube end of osculum; The air hole of gas collection graduated cylinder is communicated with the vent port sealing that rock core is separated cucurbitula.

As a kind of improvement of the utility model, the osculum of described gas collection graduated cylinder is a draining aperture, and on the draining aperture, is provided with switch valve.

The aperture of described draining aperture is 0.5mm-4.5mm.

The aperture of described draining aperture is 2.5mm.

The box and pin sealing of air hole through quick junction button that described rock core is separated vent port and the gas collection graduated cylinder of cucurbitula is communicated with.

The cylindrical shell of described gas collection graduated cylinder was connected through thread seal with the tube end.

The internal diameter that described rock core is separated cucurbitula is 75mm, high 300mm.

The range of capacity of described gas collection graduated cylinder is 0~600ml, and minimum scale is 5ml.

After adopting such structure, the utility model has the following advantages at least:

1, the experiment overall process realizes transparence, has reached observing effect intuitively, and self-checking capability is strong, is convenient to reduce experimental error and improves analysis precision;

2, project organization is optimized, reduced production and manufacturing cost, for producing in batches and wide popularization and application is laid a good foundation;

3, of many uses, can be applied to on-the-spot and indoor production test, the theoretical research in the laboratory and teaching simultaneously and show;

4, volume is littler, is easy to carry, and is suitable for batch testing, intensive sampling test and contrast test under the different condition, is particularly suitable for the high precision measurement of small air content;

5, except methane gas, also applicable to the site desorption and the air content analysis of multiple other types rock gases such as coal-seam gas, chalk gas, compact sandstone gas, hydrate;

6, except that rock gas research, in other field, also can have a wide range of applications, mainly comprise mine safety, methane explosion prevention, environmental monitoring, ecological Studies and food security etc.;

7, it is that first is used for test of rock core adsorbed gas content and omnidistance transparent visual professional measuring equipment at present.

Description of drawings

Above-mentioned only is the general introduction of the utility model technical scheme, in order more to know the technological means of understanding the utility model, below in conjunction with accompanying drawing and embodiment the utility model is done further to specify.

Fig. 1 is the structural representation of the visualized air content tester of the utility model.

Embodiment

See also shown in Figure 1ly, the visualized air content tester of the utility model comprises that rock core separates cucurbitula and gas collection graduated cylinder.

Wherein, rock core is separated cucurbitula and is comprised top cover 12 that is tightly connected and the transparent tank body 11 that adopts the tempered glass material, and on top cover 12, is provided with vent port.

The preferred interior diameter that rock core is separated cucurbitula is 75mm, high 300mm, volume 1325cm3 (1.325L).Rock core is separated cucurbitula can be as shown in the figure, directly is made up of tank body 11 and top cover 12 snappings, adopts buckled top cover 12 to seal, and is more conducive to drain the air in the tank body 11, makes experimental result more accurate, and operation has reduced the gas loss rapidly.

The gas collection graduated cylinder comprises the transparent cylindrical shell 21 that indicates scale and is provided with air hole and the tube end 22 of osculum.Cylindrical shell 21 adopts transparent material, but the entering situation of Direct observation rock gas.

The range of capacity of gas collection graduated cylinder is 0~600ml, and minimum scale is 5ml.Cylindrical shell 21 was connected through thread seal with the tube end 22.Preferably, a draining aperture at the bottom of the osculum of gas collection graduated cylinder is merely and is arranged on tin on 22, the aperture of this draining aperture is 0.5mm-4.5mm; Optimum value is 2.5mm; And on this draining aperture, switch valve is set, so that the structure of gas collection graduated cylinder more simplifies, and can not influence experiment control.

The air hole of gas collection graduated cylinder is communicated with the vent port sealing that rock core is separated cucurbitula.For example; The pin thread or the box of quick junction button are set at the vent port place that rock core is separated cucurbitula; Be complementary with it; The air hole place of gas collection graduated cylinder also should be provided with the box or the pin thread of quick junction button, and rock core is separated cucurbitula and is connected through this quick junction button with the gas collection graduated cylinder, and realizes that the air hole of gas collection graduated cylinder is communicated with the sealing that rock core is separated the vent port of cucurbitula.The impermeability of junction button is good, easy to connect fast, connected sum disconnection at any time as required.

During use, the core sample that will in the drilling well rock core, gather the earlier rock core of packing into is separated in the cucurbitula, and in tank body 11, fills salt solution, with top cover 12 sealings, rock core is separated cucurbitula carry out water bath with thermostatic control or electrobath, makes rock core nature desorb under the initial temperature condition of stratum; In the gas collection graduated cylinder, fill saturated brine, drain the air in the tank body, at the bottom of tightening tin 21, by-pass cock opening of valves draining aperture; The gas collection graduated cylinder stood upside down and separate cucurbitula with the rock core of below dock, the liquid at the aperture of draining at this moment place can not flow out because of the effect of surface tension, atmospheric pressure; When the desorption gas in rock core is separated cucurbitula gets into the gas collection graduated cylinder through air hole; To make isopyknic saturated brine discharge cylindrical shell 21 in the gas collection graduated cylinder; Write down liquid level position at regular intervals, be this moment rock core and separate the volume size that rock core is separated the gas of sucking-off in the cucurbitula; After experiment finished, the draining aperture on the closure set tolerance tube broke off box and pin, and data recorded is brought computer processing system in will testing, and can draw the rock gas adsorbed gas content of rock core.Except as the gas measurement instrument, the gas collection graduated cylinder of the utility model can also directly be linked into gas composition analyzer device up-sampling as the preservation equipment of stripping gas appearance after the stripping gas rate test finishes.

The good airproof performance of the visualized air content tester of the utility model, can be used in and collect all inflammable gass, compared with prior art the utility model: dwindled overall dimensions, mobility is stronger; Save rock core and separated the cucurbitula bottom cover structure, deducted rock core and separated the carriage between cucurbitula and gas collection graduated cylinder, and many metering holes are reduced to the design that a draining aperture matches with switch valve, in the time of simplified structure, greatly reduced cost; The diameter of gas collection graduated cylinder is littler, scale is meticulousr, and is very accurate to the measurement of gas content, cooperates the box and pin syndeton, can show and measure the adsorbed gas content in small air content, the small samples fast accurately; And adopting the rock core of tempered glass material to separate cucurbitula, tank body is transparent, can observe desorption process intuitively.

The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in the protection domain of the utility model.

Claims (8)

1. visualized air content tester is characterized in that comprising that core separates cucurbitula and gas collection graduated cylinder, wherein:
Rock core is separated cucurbitula, comprises top cover that is tightly connected and the transparent tank body that adopts the tempered glass material, and on top cover, is provided with vent port;
The gas collection graduated cylinder comprises the transparent cylindrical shell that indicates scale and is provided with air hole and the tube end of osculum;
The air hole of gas collection graduated cylinder is communicated with the vent port sealing that rock core is separated cucurbitula.
2. visualized air content tester according to claim 1, the osculum that it is characterized in that described gas collection graduated cylinder is a draining aperture, and on the draining aperture, is provided with switch valve.
3. visualized air content tester according to claim 2, the aperture that it is characterized in that described draining aperture is 0.5mm-4.5mm.
4. visualized air content tester according to claim 2, the aperture that it is characterized in that described draining aperture is 2.5mm.
5. visualized air content tester according to claim 1 is characterized in that described rock core separates the box and pin sealing of air hole through quick junction button of vent port and the gas collection graduated cylinder of cucurbitula and be communicated with.
6. visualized air content tester according to claim 1 is characterized in that the cylindrical shell of described gas collection graduated cylinder and the tube end are connected through thread seal.
7. according to each described visualized air content tester among the claim 1-6, it is characterized in that it is 75mm that described rock core is separated the internal diameter of cucurbitula, high 300mm.
8. according to each described visualized air content tester among the claim 1-6, the range of capacity that it is characterized in that described gas collection graduated cylinder is 0~600ml, and minimum scale is 5ml.
CN201120465348XU 2011-11-21 2011-11-21 Whole-course visualized gas content tester CN202362222U (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103217316A (en) * 2013-04-26 2013-07-24 中国地质调查局油气资源调查中心 Collecting system of core gas in core gas hydrate drilling field
CN103743450A (en) * 2013-11-30 2014-04-23 成都新基因格生物科技有限公司 Measuring cylinder with accurate measuring function
CN103969092A (en) * 2013-01-29 2014-08-06 中国科学院寒区旱区环境与工程研究所 A device for obtaining gas from a rock core
CN104863579A (en) * 2015-05-27 2015-08-26 中国地质大学(北京) Loss gas content determining method and system
CN104977224A (en) * 2015-07-06 2015-10-14 中国地质大学(北京) High-temperature phase-control desorption instrument
CN104990834A (en) * 2015-07-10 2015-10-21 广西玉柴机器股份有限公司 Measuring equipment for air content in cooling liquid of engine and method
CN105092314A (en) * 2014-05-23 2015-11-25 中国石油化工股份有限公司 Apparatus for collecting head-space gas, and method using apparatus
CN107144625A (en) * 2017-06-23 2017-09-08 国家地质实验测试中心 Gas hydrates drill core light hydrocarbon gas content parses test system and method
CN109738328A (en) * 2019-01-28 2019-05-10 中粮粮油工业(巢湖)有限公司 Vegetable oil inspiratory capacity rapid detection method under a kind of normal temperature and pressure

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103969092A (en) * 2013-01-29 2014-08-06 中国科学院寒区旱区环境与工程研究所 A device for obtaining gas from a rock core
CN103217316B (en) * 2013-04-26 2015-11-18 中国地质调查局油气资源调查中心 The acquisition system of the on-the-spot rock core gas of a kind of Gas Hydrate Drilling
CN103217316A (en) * 2013-04-26 2013-07-24 中国地质调查局油气资源调查中心 Collecting system of core gas in core gas hydrate drilling field
CN103743450A (en) * 2013-11-30 2014-04-23 成都新基因格生物科技有限公司 Measuring cylinder with accurate measuring function
CN105092314A (en) * 2014-05-23 2015-11-25 中国石油化工股份有限公司 Apparatus for collecting head-space gas, and method using apparatus
CN105092314B (en) * 2014-05-23 2020-01-24 中国石油化工股份有限公司 Apparatus for headspace collection and method of using the same
CN104863579B (en) * 2015-05-27 2017-06-06 中国地质大学(北京) One kind loss gasometric determination method and loss gasometric determination system
CN104863579A (en) * 2015-05-27 2015-08-26 中国地质大学(北京) Loss gas content determining method and system
CN104977224A (en) * 2015-07-06 2015-10-14 中国地质大学(北京) High-temperature phase-control desorption instrument
CN104977224B (en) * 2015-07-06 2017-12-26 中国地质大学(北京) A kind of phased desorption instrument of high temperature
CN104990834A (en) * 2015-07-10 2015-10-21 广西玉柴机器股份有限公司 Measuring equipment for air content in cooling liquid of engine and method
CN104990834B (en) * 2015-07-10 2018-05-11 广西玉柴机器股份有限公司 The measuring device and method of a kind of air content in coolant of engine
CN107144625A (en) * 2017-06-23 2017-09-08 国家地质实验测试中心 Gas hydrates drill core light hydrocarbon gas content parses test system and method
CN109738328A (en) * 2019-01-28 2019-05-10 中粮粮油工业(巢湖)有限公司 Vegetable oil inspiratory capacity rapid detection method under a kind of normal temperature and pressure

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