吴起油田吴仓堡油区单井产能论证

Demonstration on Individual Well Productivity of Wucangbao Block in Wuqi Oilfield

吴仓堡油区延长组油藏为中深层、特低孔隙、特低渗透、低产、低丰度、中型不均质层油藏。其产量变化大,生产情况不稳定。针对这种产量变化大,生产极不稳定的井,如何去评价其产能难度就相当的大。为了能够制定合理的开采方案及实现高效开发,就必须对单井产能进行深入研究。这里采用视流度法,渗透率与单井产能回归法,渗透率统计法,地层系数曲线回归法,试油产量折算法计算油井产能。

The Yanchang formation reservoir in Wucangbao block is a middle-deep member with extra-low pore,extra-low permeability,low output and low abundance,whose characteristic is obvious variation and dramatic decline in production as well as unstable producing situation.For such wells,how to evaluate its productivity is very difficult.In order to realize highly efficient development,the productivity of the individual well must be researched.In this paper,the individual well productivity was calculated by visual flow degree method,permeability and individual well productivity regression method,permeability statistical method,curve regression method of formation conductivity,formation testing yield convert method.