Automatic history matching (AHM) of reservoir has made great progress in both theory and application since its proposal more than 50 years ago. In order to summarize the research progress and key technologies, this paper takes the development history of AHM for the mainline and the technical progress of AHM as the core, and divides AHM into four stages:germination, formation, development and rapid development. It then systematically discusses the general optimization methods and the potential optimization methods. A comparison for these optimization algorithms is given in terms of characteristics and applicable scopes. and problems existing in current research are also presented. Finally, future direction of AHM is put forward.

automatic history matching  /  objective function  /  optimization algorithm  /  auxiliary history matching method