[Society of Exploration Geophysicists 2nd SEG Rock Physics Workshop: Challenges in Deep and Unconventional Oil/Gas Exploration, 25–27 October 2019, Qingdao, China - Qingdao, China (25 October to 27 October)] 2nd SEG Rock Physics Workshop: Challenges in Deep and Unconventional Oil/Gas Exploration, 25–27 October 2019, Qingdao, China - Fluid discrimination with novel anisotropic fluid factor based on the Gassmann theory