长效复合泡沫体系室内研究

Reserch for the foam of lenth compound systems in room

结合大庆油田目前高水淹状况,研究出与现场注入水配伍性好的长效复合泡沫体系,该泡沫体系的最佳发泡剂质量浓度是0.3%,常温下发泡体积在475 mL以上,半衰期在54 h。该泡沫体系比较适合温度50℃以下、矿化度10 000 mg/L以下、含油饱和度低于20%的油藏,并且不受酸碱性影响,能满足现场需要。

The foam of lenth compound systems have better character of stable with water of pilot filed.It can control lots of water in Daqing oilfield.This foam systems′ best consistency is 0.3%.This foam systems′ volume is over 475mL for 25℃ condition.The foam of lenth compound systems are fit for 50℃ reservoir that degree of mineralization is below 10 000 mg/L,that degree of saturation with oil is below 20%.But acids and alkalis don′ t affect it.It can content need of pilot fieled.