Assi, Amel habeeb. “Enhancing the Lifting Capacity of Drilling Fluids in Vertical Oil Wells”. Iraqi Journal of Chemical and Petroleum Engineering 18, no. 3 (September 30, 2017): 13–29. Accessed May 2, 2024. https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/63.