Reducing Friction During Drilling In Water–Based Mud Using Glass Beads. Jurnal Teknologi, [S. l.], v. 55, n. 1, p. 39–52, 2011. DOI: 10.11113/jt.v55.76. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/76.. Acesso em: 23 jul. 2024.