【摘要】 目前国内外常用的方法尚不能准确反映油藏范围内剩余油 (尤其是可动油 )的真实分布和动态分布。经研究 ,在前人工作的基础上 ,提出了用注水井及见水油井现代试井解释剩余油分布的两种新方法。对于见水油井 ,利用具有移动流体界面的多区油藏近似的方法 ,建立了见水后油井影响区域内的数学模型 ,并求出了井底压力的解析式。通过分解 ,得到了地层不稳定渗流的影响因子 ,并建立和利用神经网络的逼近映射求取地层的相对渗透率曲线。针对见水油井区域内的特征 ,推导了相应的饱和度推进方程 ,结合所求的相对渗透率曲线 ,得到了见水油井区域内的剩余油饱和度的分布。并通过实例 ,利用智能化的软件技术验证了这一方法。更多还原

【Abstract】 Since the universal method did not inflect the real and dynamical distribution of the resident oil in the reservoir,two new methods are developed to determine the resident oil distribution.This method is based on the former research by using well test data of water and water flooded production well.For the water flooded production well,a mathematical model is built by using approximate method on multi-region with moving fluid interfaces.The analysis solution is found.The factors affected on the transient flow in the formation are got.Relative permeability curves are calculated by using approach reflect method of intelligent net work.According to the character of the water flooded regions,the equations of water saturation are derived. The resident oil distribution around the water flooded production well are determined based on the relative permeability curves.The field examples are analyzed.This method is verified by using intelligent software technology.更多还原