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大榆树区自 1 999年 1 1月陆续投入开发 ,油井采用提捞采油投产 ,水井采用常规管网注水 ,目前完钻 57口 ,射孔 36口 ,压裂 36口。采用提捞方式投入生产 35口 ,平均油层中部深度 879m。该区经过 1 2个月弹性溶解气驱阶段 ,于 2 0 0 0年 1 1月转入注水开发 ,共转注 9口井 ,日注水 1 35m3,累积注水 41 84m3,水驱控制程度为 64 8%。在试验区共投入 3套车组进行提捞生产 (单车生产能力在 81 0t/d) ,捞油周期 3d ,目前平均日产油 2 0 3t,累积产油 731 6 4t。通过近一年的开发 ,证明采用提捞采油方式投产可以满足该区开发需要。
Dayu Shu area since January 1999 January 1 successively put into the development of oil wells with oil extraction production, water wells using conventional pipe water, now finished drilling 57, 36 perforation, fracturing 36. Using the way of raising fishing put into production 35, the average depth of the central reservoir 879m. After 12 months of elastic dissolved gas flooding, the area was transferred to waterflood development in January 2001. 9 wells were flooded, with a daily water injection of 1 35m3, a cumulative water injection of 4184m3 and a degree of waterflood control of 648 %. In the experimental area, a total of 3 sets of trucks were put into the project to carry out the fishing (production capacity of bicycle at 81 0t / d) and the oil recovery period of 3 days. At present, the average daily production of oil is 203 tons and the accumulated oil production is 731.64 tons. After nearly a year of development, it has been proved that the use of oil extraction and oil production can meet the development needs of this area.