High temperature, high oil pressure, oil and gas well completion testing have always been a technical challenge and basic theoretical research is one of the key factors needed to ensure a successful completion test. The completion test basic theory includes: a stress analysis of the completion string, completion string buckling behavior, and temperature and pressure distribution prediction. The completion string is the main bearing and power transmission component for oil and gas well operations and production, and it is required to take on a combination of loads, which result in completion string deformation. Because of these complex relationships, completion string stress analysis has become increasingly more complicated.
This book discusses the characters of tubular strings in HTHP (High Temperature - High Pressure) oil and gas wells. These characters include the mechanical behavior of tubular strings and the temperature and pressure variation of tubular strings in different conditions. Mathematical models are established for different conditions and solution existence and uniqueness of some models is discussed, providing algorithms corresponding to the different models. Numerical experiments are presented to verify the validity of models and the feasibility of algorithms, and the impact of the parameters of models for oil and gas wells is also discussed.
This book is written for production and testing engineers to provide them with the tools to deal more effectively with the numerical decisions they have to take and for researchers and technicians in petroleum and gas testing and production engineering. Finally, it is also intended to serve as a reference book for mathematicians, college teachers and students.
Jiuping Xu (1962) obtained his Ph.D Applied Mathematics from Tsinghua University, Beijing, China; and a Ph.D in Physical Chemistry from Sichuan University, Chengdu, China, in 1995 and 1999, respectively. Dr. Xu was elected the lifetime academician of the International Academy of Systems and Cybernetic Sciences (IASC) in 2010. He is currently Professor at Sichuan University, the president of International Society for Management Science and Engineering Management, and the vice-president of The Systems Engineering Society of China, the editor in chief of International Journal of Management Science and Engineering Management, the executive-editor in chief of World Journal of Modelling and Simulation. His current research interests include the areas of applied mathematics, physical chemistry, systems science and engineering science. He has published 40 books and over 400 journal papers in Mathematics, Computer and many others. Prof. Xu was awarded the International Federation of Operations Research Societies (IFORS) prize for development at the IFORS XIV Conference, Vancouver, in 1996, and has received numerous prizes in China, including the China Youth Prize of Science and Technology, in 2004.
Zezhong Wu (1970) received his Ph.D in Management Science and Engineering from Sichuan University, China in 2010. Dr. Wu is currently Professor at Chengdu University of Information Technology, director of The Mathematical Model and The Applied Research Institute of Chengdu University of Information Technology. His current research interests include the areas of applied mathematics, petroleum and gas, mathematical modelling and simulation. He has published 30 journal papers.