针对孤岛油田采出液性质变化,导致现有破乳剂效果变差的问题,研制了以改性酚醛树脂为起始剂的PO/EO多嵌段聚醚的扩链产物,即油溶性原油破乳剂GD-2。该产品于2001年8月在孤岛采油厂孤二联合站进行了现场应用试验,试验结果表明,GD-2新型破乳剂对孤岛油田高含水原油具有适应范围广、用量少、脱水速度快、破乳能力强、脱出水清的优点。 Aiming at the problem that the properties of the recovery fluid in Gudao Oilfield change, leading to the deterioration of the effect of the existing demulsifier, the chain extension product of the PO / EO multiblock polyether with modified phenolic resin as the initiator has been developed, namely the oil-soluble crude oil broken Emulsion GD-2. The test results show that GD-2 demulsifier has a wide range of application, high water-cut crude oil, low dosage, fast dehydration speed, Demulsification ability, prolapse clear water advantages.