barefoot interval

基本解释

The well structure should be designed according to the specific geologic features in northeast of Sichuan province, especially the choose of the barefoot interval.
三开井身结构设计需根据川东北地区特有的地质特点进行具体分析，有针对性地进行井身结构设计，应特别注意长裸眼井段的选择；
This kind of tool is easy to use, and it can lower the annular cyclic pressure loss efficiently in the barefoot interval and improve the drilling maneuverability in the case of narrow density windows.
该工具使用方便，可有效降低裸眼井段的环空循环压耗，提高窄密度窗口工况下钻井的可操作性。