朝521井抽汲排水增压采气技术及效果分析

Chao 521 Well Drawing,Drain off water Increasing Pressure Gas Proluction Technlolgy and Its Effect Analysis

朝 5 2 1井位于朝阳沟构造北翼朝1—5 5区葡萄花油层发育边部 ,靠近边水区 ,动态储量 0 2 9〔10 8m3,原始地层压力5 0MPa ,驱动类型以弹性边水驱为主 ,气区开发初期产气量达 2 80 5 0〔10 4 m3/d ,断续生产仅数月便因水淹而停产报废。 1995年对该井实施泡沫排水获得成功 ,初期产气能力为 90 0 0m3/d ,随后应用抽油机抽汲排水、增压采气技术 ,使该井重新恢复生产 ,有效利用了天然气资源 ,获得了良好的经济效益。

Chao 521 well located at side area of Putaohua reservoir growth near side water area.Starting period of development gas yield 2.8050×10 4m 3/d,after several months put into operation due to water flood production stupped.In 1995 foam drain off water practised on the well and gained success.Soon afterwards using pumping unit draw and drain off water,increasing pressure gas production technology the well again resumed production,effectively utilizing natural gas.