CN106644562A - Simple and convenient method for detecting original content of gas - Google Patents
Simple and convenient method for detecting original content of gas Download PDFInfo
- Publication number
- CN106644562A CN106644562A CN201610827524.7A CN201610827524A CN106644562A CN 106644562 A CN106644562 A CN 106644562A CN 201610827524 A CN201610827524 A CN 201610827524A CN 106644562 A CN106644562 A CN 106644562A
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- CN
- China
- Prior art keywords
- time
- gas
- coal
- coal sample
- drilling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels, explosives
- G01N33/225—Gaseous fuels, e.g. natural gas
Abstract
The invention discloses a simple and convenient method for detecting original content of gas. The simple and convenient method comprises the following steps: taking a coal sample; after filling the coal sample into a tank, immediately analyzing; in the process, accurately recording drilling and coal meeting time, coal sample drilling time, drilling starting time, time for lifting a drilling tool to a hole, coal sample tinning time and time for starting analysis and determination; after starting the analysis, recording time corresponding to a recorded gas analysis speed; carrying out regression on obtained data to obtain a relation curve between a gas separation speed and time; carrying out the regression on measured data in statistical software, so as to obtain a curvilinear equation; carrying out integration to obtain gas content: carrying out the integration on time through the obtained curvilinear equation and calculating the content of the gas in a coal seam. According to the simple and convenient method disclosed by the invention, the curve of the gas separation speed and the time is ingeniously utilized; a gas amount before a test, namely the amount of the gas separated out at the initial stage of sampling, is calculated, so that an obtained result is closer to the original content of the gas in the coal seam; the simple and convenient method is simple and convenient to operate, the data processing time is greatly shortened and manpower and material resources are saved.
Description
Technical field
The present invention relates to a kind of coal-bed gas detection technique, more particularly to a kind of simplicity side of detection gas original amount
Method.
Background technology
The purpose of underground coal mine working face field sampling detection coal seam gas-bearing capacity is gushed to accurately grasp coal-bed gas
Output, so as to take corresponding outburst prevention measures, the safety in production of safeguard work face.Gas bearing capacity and coal-bed gas pressure in coal seam
It is directly related, but the original gas pressure in underground survey coal seam is cumbersome, and poor accuracy, therefore scene adopts analytic method more
Determine coal seam gas-bearing capacity.Although the gas bearing capacity that the method is tried to achieve is capable of to a certain extent the production of guide field, its
The process consuming time is longer, meanwhile, in down-hole, no matter sampling in rock gangway or in coal seam, coal sample is Zi exposure to tinning sealing
Before, all the time in analysis state.Release that how much gas but cannot be measured directly actually in this course.Generally,
Loss gas amount can account for 20% one the 40% of total content, therefore the result that the method draws not is primitive coalbed gas bearing capacity.
The content of the invention
It is an object of the invention to provide a kind of easy to operate, detection accurately detects the short-cut method of gas original amount.
The purpose of the present invention is achieved through the following technical solutions：
The short-cut method of the detection gas original amount of the present invention, including step：
A, coal sample is taken, scene parsing：Coal sample aerial open-assembly time is reduced as far as possible, will be immediately after coal sample tinning
Parsed, want accurate recording drilling to meet the coal time in this course, drill through coal sample time, trip-out time, drilling tool and mention hole
Mouthful time, coal sample tinning time, start to parse minute, to have recorded after parsing starts gasresolution speed with it is corresponding
Time；
B, the data obtained is returned, drawn the relation curve of gas precipitation rate and time：The data for measuring are existed
Returned in statistical software, and then drawn a curvilinear equation；
C, integration try to achieve gas bearing capacity：The curvilinear equation for obtaining is integrated to time t, coal seam gas-bearing capacity is calculated.
As seen from the above technical solution provided by the invention, detection gas original amount provided in an embodiment of the present invention
Short-cut method, cleverly make use of the curve of gas precipitation rate and time, before not tested by integration, that is, sample just
The gas amount that phase separates out is counted, and makes the acquired results more original gas bearing capacity in convergence coal seam；It is easy to operate, substantially reduce
The time of data processing, use manpower and material resources sparingly.
Description of the drawings
Fig. 1 be it is provided in an embodiment of the present invention detection gas original amount short-cut method in gasresolution speed v and when
Between t regression curve.
Specific embodiment
The embodiment of the present invention will be described in further detail below.
The short-cut method of the detection gas original amount of the present invention, its preferably specific embodiment is：
Including step：
A, coal sample is taken, scene parsing：Coal sample aerial open-assembly time is reduced as far as possible, will be immediately after coal sample tinning
Parsed, want accurate recording drilling to meet the coal time in this course, drill through coal sample time, trip-out time, drilling tool and mention hole
Mouthful time, coal sample tinning time, start to parse minute, to have recorded after parsing starts gasresolution speed with it is corresponding
Time；
B, the data obtained is returned, drawn the relation curve of gas precipitation rate and time：The data for measuring are existed
Returned in statistical software, and then drawn a curvilinear equation；
C, integration try to achieve gas bearing capacity：The curvilinear equation for obtaining is integrated to time t, coal seam gas-bearing capacity is calculated.
The short-cut method of the detection gas original amount of the present invention, field sampling, the coal sample of certain interval of time measurement afterwards
Gas speed v, after test several times, by returning the relation curve for drawing gasresolution speed v and time t, then with the song
Line is integrated to time t, and gained gas bearing capacity is the original gas bearing capacity in coal seam.Make the gas bearing capacity Approaching Coal Seam of measure former
Beginning gas bearing capacity.
Specific embodiment：
1st, coal sample, scene parsing are taken：Coal sample aerial open-assembly time is reduced as far as possible, will be immediately after coal sample tinning
Parsed.Want accurate recording drilling to meet the coal time in this course, drill through coal sample time, trip-out time, drilling tool and mention hole
Mouthful time, coal sample tinning time, start to parse minute.To have recorded after parsing starts gasresolution speed with it is corresponding
Time.
2nd, the data obtained is returned, is drawn the relation curve of gas precipitation rate and time：The data for measuring are existed
Returned in statistical software, and then drawn a curvilinear equation.
3rd, integration tries to achieve gas bearing capacity：The curvilinear equation for obtaining is integrated to time t, coal seam gas-bearing capacity is calculated.
Compared with prior art, using measure scheme of the present invention, following technique effect can be reached:
1st, the curve of gas precipitation rate and time is cleverly make use of, before not tested by integration, that is, is sampled just
The gas amount that phase separates out is counted, and makes the acquired results more original gas bearing capacity in convergence coal seam.
2nd, it is easy to operate, the time of data processing is substantially reduced, use manpower and material resources sparingly.
As shown in Figure 1：Measure some groups of data (t1, v1)、(t2, v2)……(tn, vn), return, returned
Curvilinear equation F (t).
F (t) is done into lower integral such as to time t and obtains final product gas bearing capacity P original to coal seam0：
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
All should be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (1)
1. it is a kind of detection gas original amount short-cut method, it is characterised in that including step：
A, coal sample is taken, scene parsing：Coal sample aerial open-assembly time is reduced as far as possible, to be carried out immediately after coal sample tinning
Parsing, when want the accurate recording drilling chance coal time in this course, drilling through coal sample time, trip-out time, drilling tool and mention aperture
Between, the coal sample tinning time, start to parse minute, to have recorded after parsing starts gasresolution speed with it is corresponding when
Between；
B, the data obtained is returned, drawn the relation curve of gas precipitation rate and time：By the data for measuring in statistics
Returned in software, and then drawn a curvilinear equation；
C, integration try to achieve gas bearing capacity：The curvilinear equation for obtaining is integrated to time t, coal seam gas-bearing capacity is calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610827524.7A CN106644562A (en) | 2016-09-14 | 2016-09-14 | Simple and convenient method for detecting original content of gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610827524.7A CN106644562A (en) | 2016-09-14 | 2016-09-14 | Simple and convenient method for detecting original content of gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106644562A true CN106644562A (en) | 2017-05-10 |
Family
ID=58851964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610827524.7A Pending CN106644562A (en) | 2016-09-14 | 2016-09-14 | Simple and convenient method for detecting original content of gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106644562A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444856A (en) * | 2018-02-11 | 2018-08-24 | 煤炭科学技术研究院有限公司 | Coal mine underground coal bed gas bearing capacity and pressure Quick testing instrument and assay method |
| CN114544424A (en) * | 2022-03-14 | 2022-05-27 | 中煤科工集团沈阳研究院有限公司 | Method and device for quickly and automatically measuring gas content of underground coal seam |
Citations (4)
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|---|---|---|---|---|
| CN102928571A (en) * | 2012-11-01 | 2013-02-13 | 中国矿业大学 | Method for measuring coal seam gas content directly through downward borehole of pressure ventilation pipe |
| CN102944664A (en) * | 2012-11-30 | 2013-02-27 | 天地（常州）自动化股份有限公司 | Method for testing coal gas desorption characteristics |
| CN104763406A (en) * | 2015-01-29 | 2015-07-08 | 河南理工大学 | Method for measuring extraction influence radius based on bedding drilling gas emission characteristics |
| CN105092410A (en) * | 2015-07-14 | 2015-11-25 | 中煤科工集团重庆研究院有限公司 | Determination method and apparatus for methane desorption amount of large-block residual coal in goaf |
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2016
- 2016-09-14 CN CN201610827524.7A patent/CN106644562A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928571A (en) * | 2012-11-01 | 2013-02-13 | 中国矿业大学 | Method for measuring coal seam gas content directly through downward borehole of pressure ventilation pipe |
| CN102944664A (en) * | 2012-11-30 | 2013-02-27 | 天地（常州）自动化股份有限公司 | Method for testing coal gas desorption characteristics |
| CN104763406A (en) * | 2015-01-29 | 2015-07-08 | 河南理工大学 | Method for measuring extraction influence radius based on bedding drilling gas emission characteristics |
| CN105092410A (en) * | 2015-07-14 | 2015-11-25 | 中煤科工集团重庆研究院有限公司 | Determination method and apparatus for methane desorption amount of large-block residual coal in goaf |
Non-Patent Citations (1)
| Title |
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| 中华人民共和国国家质量监督检验检疫总局等: "煤层瓦斯含量井下直接测定方法", 《中华人民共和国国家标准 GB/T23250-2009》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444856A (en) * | 2018-02-11 | 2018-08-24 | 煤炭科学技术研究院有限公司 | Coal mine underground coal bed gas bearing capacity and pressure Quick testing instrument and assay method |
| CN108444856B (en) * | 2018-02-11 | 2024-02-13 | 煤炭科学技术研究院有限公司 | Rapid tester and testing method for gas content and pressure of underground coal seam of coal mine |
| CN114544424A (en) * | 2022-03-14 | 2022-05-27 | 中煤科工集团沈阳研究院有限公司 | Method and device for quickly and automatically measuring gas content of underground coal seam |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |