Hello Good People!

Please post the following books;

1. 501 Solved Problems and Calculations for Drilling Operations
2. Drilling Operations: Cost and Risk Management - Prosper Aideyan
3. Advanced Drilling Engineering Books -Principles and Designs - Dr.Robello Samuel , Dr.Xiushan Liu
4. Applied Drilling Engineering Optimization Book – Dr.Robello Samuel, Dr.J.J. Azar
5. Downhole Drilling Books – Theory and Practice for Students and Engineers by Dr.Robello Samuel
6. Horizontal Drilling Engineering – Theory, Methods and Application, by Robello Samuel and Deli Gao
7. Positive Displacement Motors – (Mud Motors) Dr.Robello Samuel, Dr.Dmitry Baldenko & Dr.Fedor Baldenko

Thanks in advance!

Gitta