Laboratory experiment on efficiency of air injection displacement

被引：0

作者：

Wang, Jie-Xiang ^{[1
]}

Zhang, Qi ^{[1
]}

Li, Ai-Shan ^{[1
]}

Zhang, Hong-Ling ^{[1
]}

Liu, Jun-Rong ^{[1
]}

Zhang, Hong ^{[1
]}

机构：

[1] Coll. of Petroleum Eng., Univ. of Petroleum, Dongying 257061, China

来源：

Shiyou Daxue Xuebao/Journal of the University of Petroleum China | 2003年 / 27卷 / 04期

关键词：

Air injection displacement - Displacement efficiency - Gas breakthrough - Low temperature oxidization - Oxygen content;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The process of low-temperature oxidization at different temperatures and pressures was simulated by air-injection displacement experiment in laboratory. The change of oxygen contents in produced gas was measured, and the mechanics of the low-temperature oxidization were investigated. The experimental results showed that the time of gas breakthrough was shortened, and oil displacement efficiency and oxygen content in produced gas were reduced with the increase of air-injection pressure at the same temperature. At the same pressure drop, oil displacement efficiency increased, and oxygen content in produced gas decreased with the increase of temperature. With the increase of temperature, the time of gas breakthrough shortened at low-pressure gradient and delayed at high-pressure gradient. The safety of oil production using air-injection displacement technology in the low-pressure gradient and high-temperature reservoirs can be controlled.

引用

页码：73 / 75

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