ISO天然气分析标准对煤层气分析的适应性研讨

目的 确认ISO天然气分析标准对煤层气分析的适应性，以促进煤层气相关标准的国际化进程。方法 通过对煤层气气质情况的分析和总结，结合ISO/TC 193制定的天然气分析测试相关标准的对标分析，研究了ISO天然气分析相关标准在分析煤层气时的适应性。结果 对于煤层气中的绝大部分指标，ISO天然气分析标准是满足煤层气分析需求的。但煤层气中的氮气、二氧化碳、氧气含量等有可能较大范围地超过天然气相关分析标准的适用范围，需要对标准进行修订，以进一步满足煤层气分析测试需求。另外，对煤层气产供储销影响较大的颗粒物，ISO也未形成相关的分析标准。结论 宜开展相关的国际标准技术报告研究，说明相关标准适应性，并进一步开展国际标准制修订工作，提高煤层气相关指标的分析覆盖率。

Study on applicability of ISO natural gas analysis standards applied in coalbed methane analysis

ObjectiveThe applicability of ISO natural gas analysis standards on coalbed methane(CBM) needs to be confirmed while accelerate international standardization on this area. MethodsBased on the analysis of the gas quality of CBM, combined with the benchmarking analysis of the relevant standards for natural gas analysis and testing formulated by ISO/TC 193, the applicability of ISO natural gas analysis standards applied in CBM analysis is studied. ResultsFor most of the quality designation of CBM, ISO natural gas analysis and test standards are suitable for the analysis of CBM. However, the contents of nitrogen, carbon dioxide and oxygen in coalbed methane may exceed the application range of some natural gas related analysis and test standards, which needs to be revised to further meet the needs of coalbed methane analysis and test. In addition, ISO has not formed relevant standards for the determination of particulate matter which has a great influence on the production, supply, storage and marketing of coalbed methane. ConclusionsIt is advisable to formulate relevant international standard technical reports, clarify the applicability of relevant standards, and further develop international standard formulation and revision work to improve the coverage rate of the quality designation of CBM.