Review on the Evaluation of Casing Damage Level in Oil and Gas Field Fangcheng Zhou, Tao Wang, Changqing Ma, Pengfei Lei, Xinyi Zhang and Qingxin Ding MATEC Web Conf., 256 (2019) 02008 Published online: 23 January 2019 DOI: 10.1051/matecconf/201925602008