Hoang Thanh Tung, Nguyen Pham Huy Cuong, Tran Hong Nam, Le Quang Duyen, & Dao Thi Uyen. (2020). Optimising the under-reamer string design for the well at Hai Thach field, Nam Con Son basin. Petrovietnam Journal, 6, 37 - 44. https://doi.org/10.25073/petrovietnam journal.v6i0.317