Improve Rheological Properties of Palygorskite Water-Based Drilling Fluid by Caustic Soda and Soda Ash. jcoeng [Internet]. 2020 Jun. 1 [cited 2025 Apr. 26];26(6):1-17. Available from: https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/1004