How to identify and describe low and non-effective circulation layers is one of important challenges of high efficient oilfield development in ultra-high water cut stage.
如何识别描述低效、无效循环层已经成为油田特高含水期水驱高效开发的一个重要问题。
2
To research a waste water treatment technology of low energy consumption, ABR acidification and two-stage constructed wetlands method was used to treat sewage.
为研究低能耗污水处理技术，采用ABR(厌氧折流板)酸化反应器-两级人工湿地工艺处理生活污水。
3
The basic law of injection development is the injection development at the early stage, fast water-cut rising and low recovery degree at middle stage.