特低渗透油藏流体渗流特征试验研究  

Experimental Study of Fluid Percolating Characteristics in Extremely Low Permeable Reservoirs

作　　者：张光明[1] 廖锐全[1] 徐永高[2] 许魏[3] 

机构地区：[1]长江大学石油工程学院,湖北荆州434023 [2]长庆油田分公司油气工艺研究院,陕西西安710060 [3]中原油田分公司采油三厂,河南濮阳457001

出　　处：《江汉石油学院学报》2004年第1期88-89,共2页Journal of Jianghan Petroleum Institute

摘　　要：以长庆油田三叠系长 6油藏为例 ,通过实验研究了压力、温度对低渗油藏渗流特性的影响和加表面活性剂改善两相渗流的效果。结果表明 ,特低渗透油藏中 ,提高温度和系统压力 ,可以降低原油渗流的初始启动压力 ,改善非达西渗流特性 ;向注入水中加入表面活性体系 ,可以有效地增加油水两相同流区 。By taking reservoir Chang 6 in Changqing Oilfield as an example, an experimental study is carried out on the effects of pressure, temperature on the percolating characteristics of low permeable reservoirs as well as on the result of improving two phase percolation by adding surfactant. The result demonstrates that in the low permeable reservoirs, the initial starting pressure could be reduced in crude oil, non-Darcy percolating characteristics could be improved by raising temperature and system pressure. Oil-water 2 phase of combined flow area can be improved effectively, thus to raise the recovery efficiency of water injection by adding surfactant system in injected water.

关 键 词：低渗透油气藏 渗流 特征 性能试验 

分 类 号：TE348[石油与天然气工程—油气田开发工程] TE312