【摘要】 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。更多还原

【Abstract】 Coalbed core flowing experiment is an important means of assessing the sensitivity of stress,gas flowing velocity,salt water flowing velocity,acidizing fluid,alkali fluid and the damage of the various working fluids to coalbed.On the basis of summarizing the cases of coalbed core flowing experiment,the ways of doing the experiment,including the preparation before making the experiment,coalbed permeability measurement,coalbed core sensitivity assessment,the assessment method of the damage of various working fluids to coalbed core etc.are comprehensively described.The 3 procedures of effectively developing coal seam gas,i.e.precisely assessing coalbed productivity;pretecting coalbed in the course of drilling and well completion;adopting various stimulating measures by coalbed characteristics are proposed out.更多还原