烟道气在超稠油中的溶解特性  

Dissolubility of flue gas in super-heavy oil

作　　者：李兆敏[1] 王勇[1] 李宾飞[1] 陶磊[2] 杨建平[3] 

机构地区：[1]中国石油大学,山东东营257061 [2]中石化胜利油田分公司,山东东营257000 [3]中油辽河油田公司,辽宁盘锦124010

出　　处：《特种油气藏》2010年第5期84-86,共3页Special Oil & Gas Reservoirs

基　　金：国家"863"项目"注气辅助SAGD技术研究及现场试验"(SQ2009AA06Z2488110)

摘　　要：辽河油田杜84块馆陶油层SAGD试验区属巨厚型顶水油藏,随着蒸汽腔的扩展将面临顶水突破的问题,以利用烟道气辅助SAGD技术减缓顶水突破时间。通过室内实验研究烟道气在辽河脱水超稠油中的溶解度及不同溶解度下超稠油体积系数、密度、黏度特征。实验结果表明,在实验温度范围内,烟道气在超稠油中溶解度较小,体积系数较小;烟道气溶解于超稠油后,油气混合物黏度有较大幅度下降,降黏率基本呈线性增加。该研究结果为超稠油数值模拟提供了可靠的物性参数。The SAGD test zone in the Guantao reservoir of the Du84 Block in the Liaohe Oilfield belongs to a massive reservoir with top water,which may have the challenge of top water breakthrough along with the propagation of steam chamber. Flue gas assisted SAGD technique is proposed to slow down water breakthrough. Laboratory experiments have been conducted to study the dissolubility of flue gas in Liaohe dehydrated super-heavy oil and the volume factor,density and viscosity of super-heavy oil at different dissolubility. The result of the experiments indicates that the dissolubility and volume factor of flue gas are low in super-heavy oil within the range of experiment temperature. After flue gas dissolved in super-heavy oil,the viscosity of oil/gas mixture reduces drastically,and the rate of viscosity reduction almost shows linear increase. The result of this study provides reliable parameters for numerical simulation of super-heavy oil.

关 键 词：超稠油 烟道气 溶解度 体积系数 黏度 杜84块 馆陶油层 

分 类 号：TE357.7[石油与天然气工程—油气田开发工程]