Identification of Hydrocarbon Gas and Discriminate CO2 Using Lame Parameter and Batzle-Wang ModelAlvian Yogi Pamungkas, Mohammad Syamsu Rosid and Mochammad Wahdanadi HaidarE3S Web Conf., 125 (2019) 15003DOI: https://doi.org/10.1051/e3sconf/201912515003