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煤层岩心流动实验是认识和评价煤层及煤层损害的重要手段，目的在于评价煤层的渗滤条件，了解煤层对应力、气体流速、盐水流速、酸液、碱液的敏感性，以及各类工作液对煤层的损害。结合作者在煤层岩心流动实验技术方面的探索和经验，全面论述了煤层岩心流动实验的作法，包括实验前的准备，煤层渗透率的测定方法，煤层岩心敏感性评价方法，各类工作液对煤层岩心的损害评价方法等。提出高效开发煤层气应做好三方面工作：①准确评价煤层的产气能力；②在钻井和完井过程中保护好煤层；③针对煤层特点，搞好煤层的增产措施。
Coal core core flow experiment is an important means to recognize and evaluate the damage of coal seam and coal seam. The purpose is to evaluate the conditions of percolation of coal seam, to understand the sensitivity of coal seam to stress, gas flow rate, brine flow rate, acid and alkali solution, Damage to the coal seam. Combining the author’s exploration and experience in coalbed core flow experiment technology, this paper comprehensively discusses the practice of coal core core flow experiment, including preparation before experiment, method of measuring coal permeability, sensitivity evaluation method of core of coal seam, Core damage assessment methods. Proposed to develop CBM efficiently, we should do three aspects: (1) to accurately evaluate the gas production capacity of coal seams; (2) to protect the coal seams during drilling and completion; (3) to improve the stimulation measures for coal seams based on the characteristics of coal seams.