Cement Bond Logs

Rahman Ashena, Ph.D., is a senior petroleum engineer with over a decade of field experience in drilling, well completion, and workover operations. He is the founder and senior well engineer at Smart Engineering and Data Analytics (SEDA) Group in Houston, specialized in consultancy and applying advanced data analytics techniques to optimize well and reservoir operations in petroleum, geothermal, and CCUS industires using xOptim software suite. His technical expertise includes well engineering including well control, geomechanics, well integrity, fluids/cement, P&A. Ashena has served as a consultant on complex well engineering projects across various regions and has served as a fellow in grid energy project in Oklahoma. Dr. Ashena holds a Master’s in Petroleum Well Engineering from Curtin University (2009) and a Ph.D. from Montanuniversität Leoben (2017). He serves as assistant editor-in-chief of the Journal of Petroleum Exploration and Production Technology (Springer). He is the corresponding author of the book Coring Methods and Systems, The Practical Handbook of Well Control, and the chapter author of Artificial Intelligence Approaches in Petroleum Geosciences. His next book is Cement Well Integrity. 

William K. (Bill) Ott, P.E., is an independent petroleum consultant in Houston, Texas. He founded Well Completion Technology, an international engineering consulting and petroleum industry training firm, in 1986. Before consulting and teaching, Mr. Ott was the division engineer for Halliburton’s Far East region based in Singapore. Previously, he was a research field coordinator for Halliburton in Duncan, Oklahoma. Mr. Ott received his B.S. in Chemical Engineering from the University of Missouri. He is a registered professional engineer in Texas, a 50-year SPE member, and an SPE Distinguished Lecturer (2007-08) on the Selection and Design Criteria for Sand Control Screens. He has conducted technical petroleum industry courses worldwide and written numerous technical papers relating to well completion and workover operations. He co-authored the books World Oil’s Modern Sandface Completion Practices and Mature Oil & Gas Wells Downhole Remediation Handbook.