项目名称: 裂缝型稠油油藏非等温渗吸机理及动力学模型
项目编号: No.51274212
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 矿业工程
项目作者: 刘慧卿
作者单位: 中国石油大学(北京)
项目金额: 80万元
中文摘要: 裂缝型稠油油藏的资源量极其丰富,注蒸汽热采是其主要的开发方式。本项目针对裂缝型稠油油藏岩石的储渗结构特征,以物理实验和数值计算为手段,研究非等温条件下不同渗吸阻力及渗吸动力对渗吸作用的影响,在此基础上研究添加表面活性剂对非等温渗吸作用的影响,确定温度以及温度与表面活性剂协同效应影响渗吸的机理。建立非等温渗吸机理的动力学模型,该模型考虑温度对相对渗透率曲线的影响以及温度对稠油和低渗透启动压力梯度的影响。在该模型的基础上通过分析得到裂缝型稠油油藏注蒸汽开发的技术界限。该项研究对于丰富裂缝型稠油油藏注蒸汽开采的机理具有重要意义。
中文关键词: 裂缝型稠油油藏;热力采油;渗吸机理;动力学模型;
英文摘要: The reserve of fractured heavy oil reservoirs is quite huge and steam flooding is the main development style for this kind of reservoirs. Regarding to the special structural characteristics of fractured heavy oil reservoir, the combination of physical experiments and numerical simulation method will be taken to analysis the effects of imbibition under isothermal conditions. On the basis of above researches, the synergistic effect between surfactant and temperature on isothermal imbibition will be studied. A comprehensive isothermal imbibition kinetic model will be built which takes the influence of temperature on relative permeability curves and start up pressure gradient for heavy or low permeability reservoirs in to consideration. Using this model the technique limit of fractured heavy oil reservoirs can be got. This research has a great significance on the development of fractured heavy oil reservoirs by steam flooding.
英文关键词: Fractured heavy oil reservoir;Thermal recovery;Mechanism of imbibition;Dynamic model;