D. Zhao

Abnormal down hole pressure variation by axial stick-slip of drillstring

Sigve Hovda, Sigbjørn Sangesland, S. Sangesland, 2016 .

Down Hole Pressure Variation Due to Axial Stick Slip Motion Effect on Drill String

S. Sangesland, D. Zhao, 2015 .

The Research on the Ultimate Bearing Capacity of Soil around the Push-Extend Multi-under-Reamed Pile at Sliding Failure State

Yong Mei Qian, Da Peng Zhao, Xue Wen Xie, 2014 .