塔里木油田某井区相渗曲线异常影响因素和防治措施研究

Relative permeability curve abnormality affecting factors and prevention and control measures in X well area in Tarim oilfield

通过室内实验,对塔里木油田某井区所测岩样异常油水相对渗透率曲线和影响异常曲线的因素进行了研究。结果表明,该井区所测岩样相渗曲线表现出较一致的异常特征,曲线属于"驼背"形态,水敏和水锁对相渗曲线异常影响最为明显。因此,通过研究影响水敏和水锁因素,采取相应的防治措施来降低储层损害程度,并可为油田开发参数计算、动态分析以及油藏数值模拟等提供科学依据。

Through the lab experiment, rock anomaly of oil-water relative permeability curve and abnormal curve influence factors were studied in X well area of Tarim oilfield. The results show that the well area the rock relative permeability curve showed a consistent anomaly characteristics, the curve is the' Hump' shape curve, water sensitivity and water lock are the most obvious on the relative permeability curve anomaly effects. Therefore, the effect of water sensitivity and water lock element is studied, corresponding measures are took to reduce the formation damage degree, which could provide scientific basis for the oil field development parameter calculation, dynamic analysis and numerical simulation .