Improving the Lifting Capacity of Drilled Cuttings Using Henna Leaf Extracts and Lignite in Bentonite Water-based Drilling Mud - Oseh, Jeffrey Onuoma; Department of Chemical and Petroleum Engineering, College of Engineering, Afe Babalola University, Ado-Ekiti, P.M.B. 5454, Ekiti State, (ITB Journal Publisher, LPPM ITB, 2019)