Evaluation of shell powders of bush mango and hamburger bean as eco-friendly fluid loss control additives in water-based drilling mud

The use of agro-based additives in drilling mud to reduce fluid loss and improve the rheological properties of mud has gained enormous attention owing to its biodegradability and low cost. This study evaluates the effects of shell powders of hamburger bean and bush mango as eco-friendly and cheap filtration control additives in water-based mud. Samples were formulated with different concentrations (5 g, 10 g, 15 g, and 20 g) of the shell powders to determine their effects on the filtration and rheological properties of the mud. From the results, both hamburger beans and bush mango shell powders improved the rheological properties of the fluid. Meanwhile, only 15 and 20 g of Bush mango shell powders reduce fluid loss by 10.5 and 13.2%, respectively. Similarly, the addition of 5 g, 10 g, 15 g, and 20 g of hamburger bean shell powders reduced fluid loss by 1.4, 8.82, 14.71, and 20.6%, respectively. Both Bush Mango and Hamburger Beans shell powders based mud produced cake thickness between 1.2 and 1.8 mm. The research demonstrates that Hamburger Beans shell powders provides a progressive decrease in filtration rate as the content increases, and it stand as a cheap and eco-friendly alternative additive for the enhancement of rheological and filtration properties in water-based drilling fluids.