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辽河油田锦州采油厂在１０多年开发欢喜岭油田西部稠油藏的历程中，掺稀油工艺一直是维持稠油井正常生产的主要手段。因稀油价格居高不下，所以先后采用了电杆加热和电杆越泵加热２项技术，但由于存在能量损耗大、成本高和加热深度受限制等缺陷而未大面积推广应用。１９９８年
In the course of more than 10 years of developing heavy oil reservoirs in the west of Huanxiling Oilfield, the Jinzhou Oil Production Plant of Liaohe Oil Field has been the main means of maintaining the normal production of heavy oil wells. Due to the high price of thin oil, two technologies of electric pole heating and electric pole heating have been adopted successively. However, due to the defects of large energy loss, high cost and limited heating depth, they have not been popularized widely. 1998