CO_2在水相充填多孔介质中的运移规律研究  

Migration Rule of Carbon Dioxide in the Porous Media Saturated with Water

作　　者：李伦[1] 侯吉瑞[1] 赵凤兰[1] 郭彪[1] 李玲[2] 

机构地区：[1]中国石油大学教育部重点实验室提高采收率研究中心,北京102249 [2]中国石油冀东油田分公司瑞丰化工公司,唐山063200

出　　处：《重庆科技学院学报（自然科学版）》2009年第6期59-61,68,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家973项目(2006CB705805)

摘　　要：注CO2提高原油采收率技术已在国内外多种油藏和各种地质条件下成功应用。通过室内实验模拟,研究了CO2在地层中的运移机理,即多孔介质中填充水相后对CO2运移速度影响很大;水相溶解CO2后与矿物反应损耗是CO2运移的限制因素;渗透率对CO2运移的影响比对温度的影响大。根据单相渗流规律并结合实验研究,得到与CO2扩散相关联的温度、压力、渗透率、位移之间的关系式。Enhancing oil recovery by carbon dioxide injection has been used in many reservoirs successfully. This paper does some research on the migration rule of carbon dioxide in the porous media in the lab. Some results are got. For example, water phase will affect the migration rate for CO2 seriously, at the same time, the aqueous phase reacting with mineral blocks the migration velocity of CO2. The permeability affecting migration is more serious than the temperature does. In the end, combing the rule of the single phase flow with the experiment results, this paper gets the relational expression with respect to temperature, pressure, permeabilitv and disturbance.

关 键 词：CO2 运移 渗透率 温度 时间 

分 类 号：O357[理学—流体力学]