巴拉斯钻头在川付85井的使用

Baras Bit Applied in Chuanfu Well 85

针对川付８５井钻井施工的特点，在该井首次使用巴拉斯钻头，取得较好的效果，并摸索出一套行之有效的使用技术，为川东北高陡背斜深井在高密度泥浆施工条件下提高机械钻速开辟了一条新途径。

Referring to the drilling construction characteristics of Chuanfu Well 85, Baras bit was applied for the first time in the said well, and a good effect was made. So a set of effective utilization technique is obtained for finding a new way of improving drilling speed under the condition of highdensity mud construction for high and steep anticline wells in the northeastern Sichuan.