PGL油田油层改造工艺模式

RESERVOIR MODIFICATION TECHNICAL MODELING IN PGL OILFIELD

针对PGL油田低渗透、无初产 ,常规压裂改造有一定的局限性且效果不佳等问题 ,研究了该油田油层改造工艺模式。根据室内试验、模拟计算 ,结合现场实际资料 ,分析了影响改造效果的主要因素 ,提出了以延伸裂缝有效支撑缝长为主的大规模压裂改造新工艺模式。现场应用结果表明 :新工艺模式增产效果明显 ,规模增加投资回收期短 。

PGL Oilfield is featured on low permeability and no initial production, and the conventional fracturing modification has certain limits and poor results, thus the modification technical modeling is studied. Based on the laboratory tests and simulating calculation, and combined with onsite data, the main factors influencing the modification results are investigated. A new technical modeling is presented, which involves of extending the effective supporting length of the fractures. Field using showed that the new modeling can enhance oil production remarkably.