The main characteristics of Gunan 131 fault block oil reservoir in Gudao oilfield are deep burial, low permeability, difficult water injection, low recovery percent and low recovery efficiency.
孤岛油田孤南131断块油藏的主要特征是埋藏深、渗透率低、注水困难、采出程度低、采收率低。
The problems of low drilling efficiency and low core recovery due to borehole collapse were solved with pulling in casing while drilling through using combined BHA with casing.
采用组合钻具进行跟管钻进，通过随钻跟入的套管保护孔壁，解决因钻孔垮塌导致钻探效率和岩心采取率低等技术难题。
It was indicated that MARS had such distinctive advantages as: high phenol disposal efficiency, high phenol recovery rate, slow membrane fouling, simple installation, easy maintenance, low cost.
实验表明MARS具有高效处理高浓度苯酚废水，设备简单，维护方便，膜污染程度低，苯酚回收率高，处理成本低廉等优点。
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