Anh, Nguyen Tuan, Ta Quang Minh, Vu An, Phan Trong Hieu, Hoang Mai Chi, Tran Thanh Phuong, Nguyen Thi Thu Hien, and Vu Thiet Thach. “Microbubble Drilling Fluid (aphron): New Technology for Drilling in Depleted Reservoirs”. Petrovietnam Journal 60 (June 30, 2014): 24-33. Accessed June 3, 2026. https://pvj.vn/index.php/TCDK/article/view/571.