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本文根据煤层气井在试井过程中成功率低、注入量小、调查半径小、关井时间不足、取得的资料处理时双对数曲线不能反映各流动阶段特征等问题,通过对施工方式和工艺等相关配套技术进行改进,尤其是对射孔参数、注入流体、测试压差、测试管柱等测试工艺做了一定的的优化和完善,优化后的结果表明获得的曲线经处理后大部分双对数曲线能够反映不同流动阶段的特性,对于求取煤层参数具有特别重要的意义。
According to the problems of low success rate, small injection amount, small survey radius and short of shut-in time, the double logarithm curve of data processing can not reflect the characteristics of each flow stage during CBM well testing. Based on the analysis of construction methods and technology And other related technologies to improve, especially for the perforation parameters, injection fluid, test pressure, test pipe and other test techniques to make a certain degree of optimization and improvement of the optimized results show that the obtained curve after processing most of the double Logarithmic curve can reflect the characteristics of different flow stages, for the determination of the parameters of the coal has a particularly important significance.