ISO/TC 263 - Coalbed methane (CBM)
Standardization in the field of CBM industry, including CBM exploration, development, production and utilization.
Méthane houiller
Normalisation dans le domaine de l'industrie du méthane de houille (MDH), y compris l'exploration du MDH, son développement, sa production et son utilisation.
General Information
This document provides a method for determining the specific surface area of solid materials using gas adsorption. This document is applicable to the determination of specific surface area of coal, and other powder and porous materials including nano-powders and nano-grade porous materials with a determination range of 0,001 m2/g to 1 000 m2/g.
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This document specifies the objectives, tasks, work processes, classification, report preparation and acceptance of coalbed methane (CBM) resource evaluation.
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ISO 18875:2015 provides terminology on geology and exploration, engineering construction, field development and production in coalbed methane industry. This International Standard does not contain surface gathering.
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ISO 18871:2015 provides methodology for measuring coalbed methane content of coal core samples obtained by coring or sidewall coring during well drilling. It shall be also applied to drill cuttings samples, if the equipment for the determination of the coalbed methane content according to a respective national standard is not available. The selection of the most appropriate method shall consider the purpose of the test and the possibilities of sampling. ISO 18871:2015 is applicable for the direct method of measuring coalbed methane content. It includes sample preparation, experimental procedures and calculation methods. Indirect methods of measuring gas content of coal (not included in this standard) are generally based on either the gas sorption characteristics of coal under defined/specified pressure and temperature conditions. ISO 18871:2015 includes three types of direct measuring methods: conventional desorption (slow desorption) of core samples, fast desorption of core samples, fast desorption of cuttings or lump samples. The difference among them lies in the time allowed for gas to desorb before final crushing and in sample size and shape. ISO 18871:2015 is applicable for the determination of the methane content of coal during coal and coalbed methane exploration for the determination of free gas content of low rank coals is included.
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