气井动态储量计算方法在大牛地气田的应用与探讨

摘要

大牛地气田属低渗透封闭气藏，具有低渗、低—正常压力、非均质性强等特点，气井动态储量计算难度较大。通过方法调研和生产实践验证，总结了利用动态监测资料及生产数据计算气井单井动态储量的方法，并对物质平衡（压降）法、不稳定渗流法和流动物质平衡法的应用情况进行了探讨，为指导单井的合理生产提供了依据。%In Daniudi gas field belongs to low permeability gas reservoir with low permeability,low pressure is normal,non reservoir characteristics and gas well dynamic reserves calculation is difficult. Through the research and production practice of method validation, summed up the use dynamic monitoring data and production data to calculate the gas well single well dynamic reserves,and on material balance(pressure drop),unstable percolation method and the flowing material balance method of application are discussed in this paper. The reasonable production of single well in guiding provides the basis.