宝浪油田宝中凝析气藏开发方案优选

Development Program Optimization of Baozhong Condensate Gas Reservoir in Baolang Oilfield

凝析气藏是介于油藏和纯气藏之间复杂类型的特殊油气藏,具有相态、流态复杂的特点。特别是陆相沉积储层具有储层低孔、低渗、非均质性强、地层易发生反凝析、易液锁等现象,开采难度大。以宝浪油田宝中区块凝析气藏的开发方案为实例,采用数值模拟方法并结合气藏工程方法对该区块的井型进行了筛选;同时对不同开发方式(衰竭、循环注气)进行指标预测,得到了最优的开发方案,并提出开发建议。

Gas condensate reservoir is one kind of complex types of special oil and gas reservoirs that between pure oil reservoir and pure gas reservoir, characterized by its complex phase state and complex flow patterns. For continental sedimentary reservoir with low porosity, low permeability, heterogeneity, anti-condensate easily and lock-fluid phenomenon in the stratum, its exploitation is difficult. Taking Baolang oilfield Baozhong region condensate gas reservoir development program as an example, it screens the well type in the area with numerical simulation method and engineering method. At the same time, it makes target prediction for the different development methods （depletion, cyclic gas injection）, and then gets the optimal development programs according to comparison. In the final, it provides the development suggestion.