稠油重力泄水辅助蒸汽驱三维物理模拟实验

Gravity Water-Drainage Assisted Steam Flooding of Heavy Oil:3D Physical Modeling Experiment

以辽河油田洼59块洼60-H25试验井组单元为模型基础,根据相似理论设计实验所用三维模型,并根据地质情况制作耐高温高压以及符合相应渗透率的室内模型,设计实验流程和实验条件。实验得到驱替过程中瞬时产液量、瞬时产油量和含水率随时间的变化规律,将生产过程划分为4个阶段,准确刻画各阶段的生产特征。本次实验的实验方法、实验模型设计和实验成果对今后稠油重力驱方面的相关实验具有借鉴作用,对稠油重力泄水辅助蒸汽驱开发具有重要指导意义。

Based on the model of the experimental well group Wa 60-H25 in Block Wa-59 of Liaohe oilfield,a 3D model is designed for the experiment based on the similarity theory and a high-temperature and high-pressure resistant core model which is in accordance with the corresponding permeabilities is made according to geological conditions,and the corresponding experimental procedure and condition are designed,too.The transient liquid yield,transient oil production and the variations of watercut with time during the displacement are obtained from the experiment.The production process can be classified into 4 phases and the production performance of each phase is accurately described.The experimental method,model and results can be used for reference in future experiments of heavy oil gravity flooding and have important guiding significance for heavy oil development by gravity water-drainage assisted steam flooding.