13 Mei 2023 16.19
Discussing Operational Drilling and Core Logging with SEG UGM SC
MND Drilling Supervisor/PJO Bpk. Gatot B. Raharjo, S.T. discussing with HardRocker from SEG UGM SC member and member of MGEI about concept of core sampling drilling operations and core description according to some expertise at Mineral Resourches Laboratory on May 13th.