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胜利油田于1992年9月在孤岛油田中一区进行了聚合物驱先导试验。在先导试验取得明显效果的基础上,1994年底开展了孤岛油田中一区馆3聚合物驱工业性试验。利用现有的常规井网,采用清水配制母液,污水稀释,二级段塞方式注入,历时33个月。共注入聚合物干粉8687.8t,聚合物溶液500.5×104m3。截止到1997年底,含水率平均下降了5.3%,累积增油34×104t。其中中1-16站效果最好,含水率平均下降了7.2%,累积增油24.2×104t。转后续水驱后,仍保持含水下降势头。该项目已收回全部投资,取得了工业性试验的成功。
Shengli Oilfield in September 1992 in Gudao Oilfield in a polymer pilot pilot. On the basis of the obvious effect of the pilot test, the industrial test of polymer flooding in Zhongyi District 1 in Gudao Oilfield was carried out at the end of 1994. Using the existing conventional well pattern, the mother liquor was prepared with fresh water, diluted with sewage and injected into the secondary slug for 33 months. A total of 8687.8t polymer dry powder, polymer solution 500.5 × 104m3. As of the end of 1997, the average water content decreased by 5.3%, accumulating oil by 34 × 104t. Among them, the best results were obtained from stations 1-16, with an average water content of 7.2% and a cumulative increase of 24.2 × 104t. After the follow-up water flooding, water still maintained the momentum of decline. The project has withdrawn its entire investment and achieved the success of the industrial test.