Cua, Dang, Ngo Van Tu, Bui Viet Duc, Ha Ngoc Khue, Hoang Hong Linh, Vu Van Hung, and Bui Van Thom. 2017. “Study and Application of Drilling Mud Systems Which Are Technically Suitable for Exploration and Production Wells in Vietnam”. Petrovietnam Journal 2 (February), 25 - 33. https://doi.org/10.25073/petrovietnam journal.v2i0.124.