CN204944903U - Wellhead coalbed methane sampling device - Google Patents
Wellhead coalbed methane sampling device Download PDFInfo
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- CN204944903U CN204944903U CN201520610005.6U CN201520610005U CN204944903U CN 204944903 U CN204944903 U CN 204944903U CN 201520610005 U CN201520610005 U CN 201520610005U CN 204944903 U CN204944903 U CN 204944903U
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Abstract
The utility model relates to a well head coal bed gas sampling device, including a body, the first end seal of body is equipped with first end cover, and the second end seal of body is equipped with the second end cover, is equipped with one on the first end cover from the inside one-way joint that goes on to the body outside of body. The second end cap is provided with a second one-way outlet joint which is in one-way conduction from the inside of the bottle body to the outside of the bottle body and a one-way inlet joint which is in one-way conduction from the outside of the bottle body to the inside of the bottle body. The utility model discloses a sampling device fills pure water and connects well head trachea and can accomplish sampling operation, need not extra auxiliary device, is difficult for causing the sample pollution in gas sample and experiment, has improved the experiment precision. Can be directly connected with laboratory test equipment, and has good sealing property.
Description
Technical field
The utility model is about a kind of CBM exploration and development aid, particularly relates to a kind of well head coal-seam gas sampler.
Background technology
Current China cbm development is in the fast-developing phase, evaluates for coal bed gas resource, and the mensuration of coal-seam gas geochemistry and makings parameter is an important ingredient.Compared to conventional gas, coal-seam gas belongs to stripping gas.Due to the existence of differential attachment and fractionation effect, coal-seam gas on stream geochemistry and makings parameter is the situation of dynamic change.Therefore, need to carry out long term monitoring to the geochemistry of coal-seam gas and makings parameter in the exploratory development of coal-seam gas.
The gentle sample bag of gas bottle etc. is mainly contained at present at the sampler of coal-seam gas onsite application.The gas sample steel cylinder used at conventional gas scene there are certain requirements wellhead pressure, and needs supporting vacuum extractor, and the coal bed gas well lower for wellhead pressure is also inapplicable.Gas bottle is sampled by draining, and operate comparatively loaded down with trivial details, sampling efficiency is lower at the scene.Gas sample bag often has rare gas remaining in manufacturing process, and sampling purity is poor, and use comparatively inconvenience, security is lower simultaneously.
Thus, the present inventor relies on experience and the practice of being engaged in relevant industries for many years, proposes a kind of well head coal-seam gas sampler, to overcome the defect of prior art.
Utility model content
The purpose of this utility model is to provide a kind of well head coal-seam gas sampler, solves existing sampler complex operation, sampling purity difference, the problem that security is lower.
The purpose of this utility model realizes like this, a kind of well head coal-seam gas sampler, described sampler comprises a body, the first end sealing of described body is provided with one first end cap, second end sealing of described body is provided with one second end cap, described first end cover be provided with one from body inner to the outside one-way conduction of body first unidirectional go out joint; Described second end cap be provided with one from body inner to the outside one-way conduction of body second unidirectional go out joint, one from body externally to body inside one-way conduction unidirectional enter joint.
In a better embodiment of the present utility model, first unidirectional go out joint, described second unidirectional go out joint and described unidirectional enter joint be the standard rapid-acting coupling that inside is provided with a retaining valve.
In a better embodiment of the present utility model, first unidirectional go out joint sealing be plugged in described first end and cover, described second unidirectional go out joint and described unidirectional enter joint sealing be plugged on described second end cap.
In a better embodiment of the present utility model, body is high-strength transparence acrylic material with a scale.
In a better embodiment of the present utility model, the first end cap is connected with described body thread seal; Described second end cap is connected with described body thread seal.
From the above mentioned, sampler of the present utility model fills pure water connecting well orotracheal tube can complete sampling operation, without the need to extra servicing unit, getting gas sample and not easily causing sample contamination in testing, improves experimental precision.The standard rapid-acting coupling used is simple and quick, can directly and laboratory instrumentation plug into, simultaneously sealing is good.Body uses high-strength transparence acrylic material with a scale, is convenient to observation and gets tolerance.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1: be the structural representation of the utility model sampler.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and embodiment of the present utility model is described.
As shown in Figure 1, the utility model provides a kind of well head coal-seam gas sampler 10, comprise a body 1, the first end sealing of body 1 is provided with first end cap 2, second end sealing of body 1 be provided with second end cap 3, first end cap 2 be provided with one from body inner to the outside one-way conduction of body first unidirectional go out joint 4.Second end cap 3 be provided with one from body inner to the outside one-way conduction of body second unidirectional go out joint 5, from body externally to body inside one-way conduction unidirectional enter joint 6.Assuming that the first end cap 2 of this sampler 10 upward, be then connected with the first end cap 2, body 1 and the second end cap 3, first end cap 2 from top to bottom successively and the second end cap 3 is tightly connected by screw thread and body 1.On first end cap 2 sealing be inserted with one first unidirectional go out joint 4, extract gas sample for connecting experimental detection device.On second end cap 3 sealing be inserted with one second unidirectional go out joint 5 and one unidirectional enter joint 6, for coal-seam gas well head sampling operation.
Further, body 1 is high-strength transparence acrylic material with a scale, and being convenient to on-site sampling operation is observe tolerance of getting, and in a specific embodiment, body 1 capacity is 200ml, desirable gas sample 100-150ml.First unidirectional go out joint 4, second unidirectional go out joint 5 and unidirectional enter joint 6 be standard rapid-acting coupling, standard rapid-acting coupling is prior art, the quick connecting interface of employing standard, its inside has a retaining valve, make the fluid flowing through this standard rapid-acting coupling can only towards a direction conducting, the rapid-acting coupling of employing standard is simple and quick, and convenient and laboratory instrumentation is plugged into.
This sampler 10, when sampling operation, carries out as follows:
1, be inverted by sampler 10 in laboratory, namely the first end cap 2 is down, by first unidirectional go out joint 4 close, open second unidirectional go out joint 5 and unidirectional enter joint 6, from unidirectional enter joint 6 in body 1, fill pure water, close second unidirectional go out joint 5 and unidirectional enter joint 6, boxing for later use.
2, at coal-seam gas sampling scene, sampler 10 is just put, namely the first end cap 2 upward, by unidirectional enter joint 6 connect wellhead sampling tracheae, open second unidirectional go out joint 5 discharge water, gas enters body 1, observe body 1 scale, when gas sampled amount reach required after close successively second unidirectional go out joint 5, unidirectional enter joint 6.
3, by take sample sampler 10 vanning take back laboratory, by first unidirectional go out joint 4 connect experiment checkout equipment, by unidirectional enter joint 6 connect water source, inject in body 1 pure water by gas from first unidirectional go out joint 4 discharge.
From the above mentioned, sampler 10 of the present utility model fills pure water connecting well orotracheal tube can complete sampling operation, without the need to extra servicing unit, getting gas sample and not easily causing sample contamination in testing, improves experimental precision.The standard rapid-acting coupling used is simple and quick, can directly and laboratory instrumentation plug into, simultaneously sealing is good.Body 1 uses high-strength transparence acrylic material with a scale, is convenient to observation and gets tolerance.Sampler 10 of the present utility model is applicable to the sampling operation of other low-pressure gas simultaneously, and operation easily contributes to improving sampling efficiency and promoting security.
The foregoing is only the schematic embodiment of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.
Claims (5)
1. a well head coal-seam gas sampler, described sampler comprises a body, the first end sealing of described body is provided with one first end cap, second end sealing of described body is provided with one second end cap, it is characterized in that, described first end cover be provided with one from body inner to the outside one-way conduction of body first unidirectional go out joint; Described second end cap be provided with one from body inner to the outside one-way conduction of body second unidirectional go out joint, one from body externally to body inside one-way conduction unidirectional enter joint.
2. well head coal-seam gas sampler as claimed in claim 1, is characterized in that, described first unidirectional go out joint, described second unidirectional go out joint and described unidirectional enter joint be the standard rapid-acting coupling that inside is provided with a retaining valve.
3. well head coal-seam gas sampler as claimed in claim 2, is characterized in that, described first unidirectional go out joint sealing be plugged in described first end and cover, described second unidirectional go out joint and described unidirectional enter joint sealing be plugged on described second end cap.
4. well head coal-seam gas sampler as claimed in claim 3, it is characterized in that, described body is high-strength transparence acrylic material with a scale.
5. well head coal-seam gas sampler as claimed in claim 4, it is characterized in that, described first end cap is connected with described body thread seal; Described second end cap is connected with described body thread seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610005.6U CN204944903U (en) | 2015-08-13 | 2015-08-13 | Wellhead coalbed methane sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610005.6U CN204944903U (en) | 2015-08-13 | 2015-08-13 | Wellhead coalbed methane sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204944903U true CN204944903U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520610005.6U Active CN204944903U (en) | 2015-08-13 | 2015-08-13 | Wellhead coalbed methane sampling device |
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| CN (1) | CN204944903U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136526A (en) * | 2015-08-13 | 2015-12-09 | 中国石油天然气股份有限公司 | Wellhead coalbed methane sampling device |
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2015
- 2015-08-13 CN CN201520610005.6U patent/CN204944903U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136526A (en) * | 2015-08-13 | 2015-12-09 | 中国石油天然气股份有限公司 | Wellhead coalbed methane sampling device |
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| C14 | Grant of patent or utility model | ||
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