This book is written by Dr. Saeid Pourmorad, Prof. Khan M. G. Mostofa, Prof. Si-Liang Li, Prof. Cong-Qiang Liu (From Tianjin University of China) and Ms. Zinab Moein (From Chamran University of Iran), divided into two main sections: geology and Mud engineering. In the geology section, an attempt has been made to ignore the basic topics of geology as much as possible, and to focus more on operational issues and to examine all the cases that a geologist needs in oil and gas fields.In this section, in addition to all the instructions and methods of studying sediment samples, it has two other...