针对实测资料在气层识别上存在的问题 ,根据取心分析化验资料 ,分析了岩性对气层识别的影响 ,发现碳酸盐含量偏高造成气层识别困难。在此基础上 ,提出了气层指数岩性校正的改进方法。利用改进后的方法对有关实际资料进行了处理解释 ,解释结果与试油结果一致 According to the existing problems in the recognition of gas reservoirs, this paper analyzes the influence of lithology on the recognition of gas reservoirs based on the coring analysis and laboratory data. It is found that the carbonate content is too high, which makes gas identification difficult. On this basis, an improved method of lithologic correction of gas layer index is proposed. The improved method is used to explain the actual data, and the interpretation result is consistent with the test oil result