利用生产动态数据计算煤层气井单井动态控制储量

摘要

Dynamic production data of CBM well is a kind of field data which is most completed and abundant.It is currently a research hotspot that how to mine out the dynamic reserves and corresponding formation parameters from the above data.Starting from fundamentals of fluid mechanics in porous medium,at the base of establishing calculating formula of present formation pressure、wellhead production,flowing bottom hole pressure in CBM well,the Specific steps and methods of calculating dynamic reserves by production dynamic data are established.A certain guiding role on understanding of the single well productivity and the reasonably effective development of CBM are presented.%煤层气藏单井的生产动态数据是收集最齐全、资料最丰富的一类现场数据.如何从上述数据中挖掘出开发者关心的单井动态控制储量以及相应的地层参数,是目前的一个研究热点问题.从渗流力学基本原理出发,建立煤层气藏气井目前地层压力的求取公式、井口产量计算公式、井底流压计算公式基础上,建立了利用生产动态数据计算煤层气井单井动态控制储量的具体步骤和方法.研究对摸清煤层气井的单井产能,对煤层气藏的合理高效开发具有一定的指导作用.