应用地应力模拟技术研究断块区剩余油分布

应力场数值模拟不仅能够重塑出不同阶段地应力场，而且还可以定量一半定量地预测破裂的发生、裂缝的方向和密度，进一步探讨时间和空间上油气运移的规律，为油田勘探、开发提供必要的依据。本文以大庆萨北开发区北二西断层区为研究对象，通过应力场数值模拟研究了流体运移势场与剩余油分布的关系、流体运移与构造应力的关系、裂缝形成与剩余油分布的关系，确定了剩余油分布的有利区域，为油田注采系统的设计、部署和油田开发及措施调整提供了依据。

Study on residual oil distribution in block faulted region by earth stress modeling

Numerical simulation of stress field can model earth stress field in different stages,quantitatively to semi-quantitatively predict fracturing occurrence and the direction and density of fractures,study oil and gas migration in time and space,and provide basis for oilfield exploration and development.With N2W fault zone in Sabei of Daqing Oilfield as an example,the relationships between fluid migration potential field and residual oil distribution,fluid migration and tectonic stress,and fractures and residual oil distribution are studied through numerical simulation of stress field.The determination of residual oil distribution provides basis for injection-production system design and oilfield development modification.