oleh Rendy, -; Faculty of International Resource Sciences, Akita University. Tegata-Gakuencho 1-1, Akita, 010-8502, Japan , Suzuki, Hideaki; Faculty of International Resource Sciences, Akita University. Tegata-Gakuencho 1-1, Akita, 010-8502, Japan , Chiyonobu, Shun; Faculty of International Resource Sciences, Akita University. Tegata-Gakuencho 1-1, Akita, 010-8502, Japan , Sato, Tokiyuki; Faculty of International Resource Sciences, Akita University. Tegata-Gakuencho 1-1, Akita, 010-8502, Japan , Syavitri, Dewi; Geological Engineering Study Program, Faculty of Earth Science and Energy Technology, Trisakti University, Jakarta, 11440, Indonesia , Widianto, Eko; Geological Engineering Study Program, Faculty of Earth Science and Energy Technology, Trisakti University, Jakarta, 11440, Indonesia , Burhannudinnur, Muhammad; Geological Engineering Study Program, Faculty of Earth Science and Energy Technology, Trisakti University, Jakarta, 11440, Indonesia , Putra, Teddy Eka; PERTAMINA Upstream Technology Center, Gambir, Jakarta 10110, Indonesia , Raguwanti, Rusalida; PERTAMINA Upstream Technology Center, Gambir, Jakarta 10110, Indonesia