ASP复合体系在多孔介质中的传输特性

ASP system transmission characteristics in the porous media

孙灵辉 黄延章 刘卫东 萧汉敏 杨烨

SUN Linghui HUANG Yanzhang LIU Weidong XIAO Hanmin YANG Ye

中国石油勘探开发研究院廊坊分院，河北廊坊　065007

Research Institute of Petroleum Exploration and development-Langfang, Langfang 065007, China

复合驱中，各种化学剂在液液和液固相互作用中的损耗不同，使得他们在多孔介质中存在色谱分离现象。为了更好地描述和分析化学剂在多孔介质中的传输规律，利用修正的传质扩散方程解析解处理实验资料，求出了方程中化学剂运移滞后系数和综合扩散系数参数。实验结果表明，对于单一的，不同的驱油剂，相同流动条件下的综合扩散程度和运移滞后程度存在差异，这种差异导致了色谱分离现象；相同流动条件下，三元复合驱油体系中由于聚合物的加入和竞争吸附的原因，使得其综合扩散程度和运移滞后程度小于单一驱油体系化学剂综合扩散程度和运移滞后程度。

Chemical agents in liquid-liquid and liquid-solid interaction have the different loss In ASP Flooding resulting in chromatographic separation of them in porous media. In order to better describe and analyze the chemical agents’ transmission in porous media, using modified convection-diffusion equation with analytical solution processes the experimental data to get the equation of chemical agent migration lag coefficient and diffusion coefficient parameters. Experimental results show that for a single, different displacing agent but same flow conditions, the level of comprehensive diffusion and transmission lag are different, and difference leads to chromatographic separation; on the other hand, under the same flow conditions and that in ASP system the chemical agents diffusion of chemicals and integrated transmission delay is less than those of chemical agent in single system by polymer addition and competitive adsorption reasons.