secondary oil recovery

Application of Secondary Sand Filling Technology in Heavy Oil Thermal Recovery Wells

二次充填补砂技术在稠油热采井的应用

With high total usage and no secondary pollution, its oil recovery ratio reaches 90.1 %.

实验结果表明,该工艺具有综合利用率高,成本低,无二次污染, 油的回收率可达90.1%以上.

It can be used in secondary and tertiary oil recovery.

它们可以应用于二次和三次采油技术中。

At from spray of later stage, be infuse intoed by water well to the water to maintain the geologic strata pressure, call it for secondary oil recovery, its recovery efficiency about for 15%-20%;

在自喷的后期，可以将水由水井注入来维持地层压力，称之为二次采油，其采收率大约为15%&20%；

Many oil fields in China had entered stages of secondary oil recovery and tertiary oil recovery in order to enhance oil production.

为了提高石油的采收率，我国很多油田都步入了二次采油和三次采油阶段。

With high total usage and no secondary pollution, its oil recovery ratio reaches 90 %.

该工艺综合利用率高,无二次污染,油的回收率可达90%,适合于小规模废乳化油的净化 、 再生.