涩北一号气田气藏动态储量计算与评价

The calculation and appraisal of dynamic reserves of the Sebei-1 gas field

柴达木盆地涩北一号气田经过12余年的试采开发,积累了大量生产测试数据,基本达到了动态储量评价条件。采用物质平衡压降法和递减分析法2种动态储量计算方法,对涩北一号气田Ⅱ、Ⅳ号气藏进行动态储量计算。计算过程中结合生产测井资料、射孔资料,合理地解释了动态储量和地质储量存在的计算差异,评价了气藏的开发效果,指出了影响该区高效开发的问题,为涩北气田其他气藏的高效开发提供了参考。

A large amount of production test data have been accumulated during the production test development over the past 12 years in the Seibei-1 gas field and they can basically meet the requirements of dynamic reserves appraisal.The material balance drawdown analysis method and the decline analysis method were used to estimate the dynamic reserves of the Ⅱand Ⅳ reservoirs in Sebei-1 gas field.Production logging and perforation data were integrated in the calculation to rationally explain the differences in the calculations between the geologic and dynamic reserves and to appraise the effects of gas development.The challenges facing the highly efficient development of gas reservoirs in the study area are presented,providing a guidance to the highly efficient development of other gas reservoirs in this gas field.