低压多层系气藏有效开发关键技术

Key Technologies for Effective Development of Low Pressure Multilayer Gas Reservoirs

针对A气田侏罗系气藏低孔、低渗、低压、小层多、非均质性强等特征,攻关形成“小层精细刻画、含气性精准预测、液氮增能压裂和多层压裂”开发关键技术,有效增加储量动用程度,延缓气藏产量递减速度,为类似气藏的有效开发提供借鉴。

Aiming at the characteristics of low porosity,low permeability,low pressure,small layer and strong heterogeneity for the Jurassic gas reservoir in the A gas field,the research has formed the key technologies of “small layer fine characterization, precise prediction of gas content,liquid nitrogen energetic fracturing and multi-layer fracturing”. These key technologies have effectively increased the utilization of reserves,delayed the decline rate of gas production,and provided a reference for the effective development of similar gas reservoirs.