底水油藏水平井物理模拟实验研究

Physical simulation experiment research of horizontal well to bottom water drive reservoir

为了较真实地模拟水平井开采底水油藏的流动状态,观察水平井开采底水油藏过程中底水脊进的整个发展过程,研究水平井的几何因素对水平井开采底水油藏的影响,探索延缓底水脊进的途径和处理方法,本文利用大型三维油藏物理模型进行模拟实验,研究水平井开发过程中底水上升的规律及其与产能的关系,并计算得出底水上升高度与产能之间关系。得出结论:底水驱替形成水脊受水平井段长度、驱替压差、流量和驱替速度影响。随着驱替压差和驱替速度的降低水脊形成、发展速度变慢。该结论对底水油藏水平井产能设计及确定合理的生产压差提供了参考依据。

The purpose of this paper are these : simulating authentically the flowing state of horizontal well exploiting the bottom water drive reservoir.Inspecting the whole developing process of horizontal well exploiting the bottom water drive reservoir where bottom water is happened to ridging,under such a situation that reservoir parameter is constant,researching how the horizontal well geometric factors and the external controlling parameter affect horizontal well exploiting the bottom water drive reservoir,finding out a effective method to retard the procedure of bottom water coning and ridging.