The, Nguyen Dac, Doan Thi My Dung, Aqil Ahmed, Phung Thai Ha, Sadu-ur Rehman, Nguyen Truong Son, and Khuc Hong Giang. “Combining Sonic While Drilling and Formation Pressure While Drilling for Pore Pressure Analysis to Reduce Drilling Risk: A Case Study in Offshore Vietnam”. Petrovietnam Journal 60 (June 30, 2016): 20-27. Accessed May 30, 2026. https://pvj.vn/index.php/TCDK/article/view/522.