GB/T 34547-2017 in English
VALIDSpecification for detection and evaluation of coalbed methane surface drainage effect in coal mine
- Issued on:2017-10-14
- Implemented on:2018-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 34547-2017煤矿区煤层气地面抽采效果检测与评价》由TC42（全国煤炭标准化技术委员会）归口，主管部门为中国煤炭工业协会。
Introduction
1. Analysis of standard formulation background and technical evolution
The National Standard of the People's Republic of China GB/T 34547-2017 "Detection and Evaluation of Surface Extraction Effect of Coalbed Methane in Coal Mining Areas" is to standardize the development and utilization of coalbed methane resources and improve the scientificity and accuracy of surface extraction effect of coalbed methane. This standard is formulated based on the technical needs and technical development status of the Coal Industry Association, and combines the experience and technological progress of coalbed methane development at home and abroad.
2. Comparative analysis of standard frameworks
| Dimensions | Standard Content | Technical Requirements | Implementation Suggestions |
|---|---|---|---|
| Terms and Definitions | Key terms such as coal seam residual gas content, coal seam gas content reduction rate, and detection wells are clarified. | It complies with the relevant requirements of GB/T 31537, ensuring the consistency and scientificity of terminology. | In practical applications, data collection and analysis should be carried out strictly in accordance with the standard definition. |
| Detection and evaluation methods | Specify the specific steps of coalbed methane geological conditions analysis, extraction effect analysis and prediction. | The test methods in standards such as GB/T 19559 and GB/T 24504 are adopted to ensure the accuracy of data. | It is recommended to combine numerical simulation technology for effect prediction and optimization. |
| Report preparation requirements | The content of the evaluation report and the requirements for drawings and appendices are clarified. | Follow the quality standards of GB/T 29119 to ensure the integrity and standardization of the report. | It is recommended to use information technology tools to assist in report preparation and management. |
3. Implementation suggestions
Case analysis: Implementation steps for coalbed methane extraction effect detection and evaluation
- Divide the evaluation unit according to the geological conditions of the mining area and determine the number and location of the detection wells.
- Carry out drilling, logging and coring work in accordance with the requirements of GB/T 29119 to ensure the accuracy of the data.
- Use GB/T 19559 and GB/T 24504 to test the gas content and reservoir parameters of the coal seam.
- Combining the detection data and geological data, analyze the coal seam gas content reduction rate and coalbed methane recovery rate.
- Write an evaluation report that meets the requirements of Appendix A and submit it to the relevant departments for review.
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