Research About Reducing Water Injection Pressure of Low Permeability Reservoir with Low Tension System

被引：0
|
作者：
Xue, Jian-qiang [1 ,2 ]
机构：
[1] Southwest Petr Univ, Grad Sch, Chengdu, Peoples R China
[2] CNPC Changqing Oilfield Branch Co, Dev Dept Ultra Low Permeabil Reservoir, Xian, Peoples R China
来源：
INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT AND MATERIALS ENGINEERING (EEME 2014) | 2014年
关键词：
Low tension system; Surfactant; Low permeability layer; Antiswelling agent; Injection pressure;
D O I：
暂无
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：
In the process of water injection development at low permeability oil field, water injection pressure rises gradually and some water wells are abnormal because of lowly reservoir permeability and porosity. Then the poor quality of water injection will lead to bad effect. Low tension system RSE composited by quaternary ammonium cationic Gemini surfactant and common surfactant OP-10 can reduce the oil-water interfacial tension to 10-3mN/m. When the concentration of the RSE system increased to 0.08%, system solution can change the rock oil-wet surface into weak water; Oil-water relative permeability curve also manifest the system can improve the formation of oil and water seepage ability. The experiment results demonstrate that low tension system RSE can greatly reduce water injection pressure and improve water injection development effect of low permeability oil field.
引用
收藏
页码：53 / 57
页数：5
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