低孔隙度低渗透率岩心水驱油岩电实验研究

Rock Electricity Mechanism Experiments on Low Permeability and Low Porosity Cores in Water-displacing-oil Process

利用实际岩心,通过模拟地层条件进行水驱油岩电机理实验,研究东濮凹陷深层油藏水淹层孔隙度、电阻率、含水饱和度和注水压力等各种参数之间的关系,揭示低孔隙度低渗透率水驱油藏水淹层复杂的变化过程,为更有效地实现油田开发中后期水淹层定量分级、精细评价、预测产层剩余油饱和度提供可靠的技术支持。

Water-displacing-oil rock electricity mechanism experiments are done by using the practical cores under the stimulated formation conditions to research the relationships among various parameters of waterflooded zones in deep-seated reservoirs of Dongpu depression, such as porosity, resistivity, water saturation and injection pressure, etc. The experiments reveal the complex changing progress of waterflooded zones in low porosity and low permeability water displacing reservoirs. The research and related experiments provide reliable supports for realizing the zones＇ fine evaluation and gradation during the middle and late periods of oilfield development. And they are helpful for predicting the residual oil saturation of the pay zones.