Improving the Lifting Capacity of Drilled Cuttings Using Henna Leaf Extracts and Lignite in Bentonite Water-based Drilling Mud


  • Jeffrey Onuoma Oseh Department of Chemical and Petroleum Engineering, College of Engineering, Afe Babalola University, Ado-Ekiti, P.M.B. 5454, Ekiti State,
  • Muhammad Noorul Anam Department of Petroleum Engineering, School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru,
  • Adams Rasyid Sidiqi Department of Petroleum Engineering, School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru,



cuttings transports efficiency, cuttings sizes, hole-angles, henna, lignite, rheological properties


One of the basic functions of drilling fluids is to transport drilled cuttings to the surface. Bentonite with low solids content is preferred in carrying out this task. However, a low amount of bentonite in the drilling mud is incapable of effective cuttings lifting and suspension. In this study, a new, green, low-cost henna leaf extract and lignite in bentonite water-based drilling mud was used to transport cuttings to the surface. The effects of three hole angles (0, 45 and 90) were examined at different cuttings size diameters (0.5 mm, 1.0 mm, 2.0 mm and 2.4 mm) for the mud systems. The average cuttings transport efficiencies were found to be in the following order: 52-94% for 0.5 mm diameter, 45-93% for 1.0 mm diameter, 38-90% for 2.0 mm diameter, and 33-83% for 2.4 mm diameter. Viscosity and hole angle are directly related to cuttings transport efficiency. A plastic viscosity of 16 cP and yield point of 12.5 lb/100ft were the most effective mud properties for a 45 hole angle, which needs attention while preparing the drilling mud. Addition of henna and lignite can be used to improve the rheological and filtration properties of bentonite water-based drilling mud.


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Author Biography

Jeffrey Onuoma Oseh, Department of Chemical and Petroleum Engineering, College of Engineering, Afe Babalola University, Ado-Ekiti, P.M.B. 5454, Ekiti State,

Research Assistant in the Department of Petroleum Engineering


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