Hoang Thanh Tung, Nguyen Pham Huy Cuong, Tran Hong Nam, Le Quang Duyen, and Dao Thi Uyen, “Selection of optimised PDC bits in the 8½” hole section of HTHP wells at Hai Thach field, Nam Con Son basin”, PVJ, vol. 2, pp. 25-34, Feb. 2019.