The Effect of Oil Viscosity, Permeability, and Residual Oil Saturation on the Performance of Alkaline Flooding in the Recovery of Heavy Oil

被引：10
|
作者：
Pei, H. [1 ]
Zhang, G. [1 ,2 ]
Ge, J. [1 ]
Jin, L. [1 ]
机构：
[1] China Univ Petr, Coll Petr Engn, Qingdao 266555, Peoples R China
[2] China Univ Petr, State Key Lab Heavy Oil Proc, Qingdao 266555, Peoples R China
来源：
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS | 2012年 / 34卷 / 5-8期
基金：
中国国家自然科学基金;
关键词：
alkaline flooding; heavy oil; oil viscosity; permeability; residual oil saturation; RESERVOIRS; MECHANISMS;
D O I：
10.1080/15567036.2011.649337
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This article examines the effect of oil viscosity, permeability, and residual oil saturation on the performance of alkaline flooding to enhance heavy oil recovery. The results show that the in situ generated water-in-oil emulsion during alkaline flooding can effectively improve sweep efficiency and, consequently, improve heavy oil recovery. The tertiary oil recovery can reach over 20% of the initial oil in place using 1.0% NaOH. The incremental oil recovery of alkaline flooding increases with the residual oil saturation. However, the tertiary oil recovery gradually increases with decreasing the permeability. But the effectiveness of alkaline flooding does not decrease with the increasing oil viscosity.
引用
收藏
页码：702 / 710
页数：9
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