Adding hot waste water in hollow rod downhole can give full play to surfactant,then the oil can be lifted to surface after heating,deconcentrating and wetting.

• 由空心抽油杆向井下掺入热污水,充分发挥原油脱出水中所含的表面活性剂作用,对稠油加温、稀释、湿润,然后由抽油泵举升到地面。