介绍了微泡沫钻井液发泡剂和稳泡剂的室内研究和优选,评价了微泡沫钻井液的稳定性、抗温性、抗污染性以及密度可调性。哈345X井现场应用结果表明,徽泡沫钻井液具有性能稳定、密度低、携砂性好、泥浆泵上水正常等特点,防止了井漏的发生,储层压力系数仅为0.68,产油量是邻井哈343井的5.7倍,取得了很好的保护油层效果。 The indoor research and optimization of foaming agent and foam stabilizer for micro-foam drilling fluid were introduced. The stability, temperature resistance, anti-pollution and adjustability of micro-foam drilling fluid were evaluated. Ha 345X well field application results show that the emblem foam drilling fluid has the characteristics of stable performance, low density, good carrying sand, normal water pump and prevent the occurrence of leakage, the reservoir pressure coefficient is only 0.68, oil production It is 5.7 times larger than the adjacent well Ha 343 and has achieved very good protection of reservoir effect.