Research Progress and Prospect of Well Leakage Intelligent Identification and Monitoring Technology

Well leakage is a major factor affecting the safety of drilling operations, especially for fractured reservoirs. At present, scholars at home and abroad have carried out a lot of research on the causes of well leakage, leakage identification, leakage prevention process and other aspects, and have made great progress, but there are few systematic summaries on the intelligent monitoring of well leakage. Therefore, the research on the existing well leakage intelligent monitoring technology is of guiding significance to the subsequent development of well leakage monitoring technology by understanding the mechanism, technical method and effect achieved by each well leakage monitoring technology. Based on the systematic summary of the causes of well leakage and the factors affecting leakage loss, it focuses on the common methods of well leakage intelligent monitoring both at home and abroad, and summarises the evaluation effect of the methods and proposes the development trend and research focus of the well leakage intelligent monitoring technology. The development trend and research focus of intelligent monitoring technology are proposed.