杨成新

Single-throttling-channel pressure control drilling method and device suitable for high-flow change

刘伟, 王凯, 王瑛, 2013 .

Text content selection method based on handwriting pen and portable terminal

田辉, 杨成新, 樊梦龙, 2014 .

Downhole jet flow auxiliary drilling speed increasing device

杨成新, 李怀忠, 汪海阁, 2013 .

Single-section throttling channel pressure control drilling device adapted to large flow variation

刘伟, 王凯, 王瑛, 2013 .