ENHANCEMENT OF GAMBE CLAY USING UN-FERMENTABLE POLYMERS FOR DRILLING MUD FORMULATION. Nigerian Journal of Technology, [S. l.], v. 36, n. 1, p. 119–126, 2016. DOI: 10.4314/njt.361.1220. Disponível em: https://www.nijotech.com/index.php/nijotech/article/view/1220.. Acesso em: 19 jun. 2024.