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介绍了可循环泡沫钻井完井液的配方、性能及在罗 1 5 1 - 1 1井欠平衡压力钻井中的应用情况。在罗 1 5 1 - 1 1井中的成功应用表明 ,该体系密度低、悬浮和携带岩屑能力强 ,抗污染效果好 ,能够满足欠平衡压力钻井的需要 ,且能减少低压油气层的损害 ,对胜利油田低压地层欠平衡压力钻井具有重要意义。
The formulation and performance of circulating foam drilling and completion fluids and the application of underbalanced pressure drilling in Luo 1 5 1 - 1 1 well are introduced. The successful application in the Lo-151-1 1 well shows that this system has the advantages of low density, strong ability of suspending and carrying cuttings, good anti-pollution effect, meeting the requirements of underbalanced pressure drilling and reducing the damage of low-pressure oil and gas reservoirs, It is of great significance to underbalanced pressure drilling in low pressure stratum of Shengli Oilfield.