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涩北一号气田经过多年的开发,获得了可观的天然气产量,增加了国内天然气供应,积累了丰富的开发经验,但也遇到了出砂、出水、储量动用差异大等问题。目前,涩北一号气田采出程度已经超过10%,达到了动态储量评价条件。采用物质平衡压降法计算动态储量,通过对影响气田气井动态储量的试井解释渗透率、出水、压力等因素进行综合分析,认为影响气井动态储量的主要因素是渗透率。该认识为提高涩北气田储量动用以及其他类似气田的开发提供了参考依据。
After years of development, Sebei Gas Field has obtained considerable natural gas output, increased domestic natural gas supply and accumulated rich experience in development. However, it encountered many problems such as sand production, effluent discharge and large differences in reserves utilization. At present, the production of Sebei Gas Field has exceeded 10%, reaching the condition of dynamic reserve evaluation. By using the material balance pressure drop method to calculate the dynamic reserves, the permeability, effluent pressure and other factors that affect the dynamic well reserves of the gas wells are analyzed comprehensively. The main factor affecting the dynamic reserves of the gas wells is the permeability. This understanding provides a reference for improving the utilization of reserves in the Sebei gas field and for the development of other similar gas fields.