Abstract: Aiming at the problems at the late development of Henan oilfield, such as the casing leakage and channeling outside the tube, which affected the effective injection of water wells or the normal production of oil wells, based on the shortcoming analysis of leakage and channeling detection by single oil well or single water well, a multi-combination leakage and channeling detection technique was proposed. The practical application shows that the logging technology can accurately evaluate the casing loss of oil and water well or the situation of channeling outside the tube, which will provide a scientific basis for the effective treatment of abnormal injection wells and production wells, and it has been widely used in thin oil reservoirs of Henan oilfield and achieved good results.