E. C. Onyia

Relationships Between Formation Strength, Drilling Strength, and Electric Log Properties

E. C. Onyia, E. Onyia, 1988 .

An Analysis of Experimental Data on Lost Circulation Problems While Drilling With Oil-Base Mud

E. C. Onyia, 1991 .

Extending the Reach of Coiled Tubing Drilling (Thrusters, Equalizers and Tractors)

L. J. Leising, P. R. Paslay, E. C. Onyia, 1997 .

Experimental Data Analysis of Lost-Circulation Problems During Drilling With Oil-Based Mud

E. C. Onyia, E. Onyia, 1994 .

Geology Drilling Log-- A Computer Database System for Drilling Simulation

E. C. Onyia, 1984 .

Roller Bit Model With Rock Ductility and Cone Offset

Tommy M. Warren, Warren J. Winters, E. C. Onyia, 1987 .