ORUKPE, Nelson O. A Closed-Form Expression for the Maximum Inclination Angle of Build-and-Hold Directional Well Trajectories: A Unified Formulation Valid for Both r1 > X3 and X3 > r1. Direct Research Journal of Engineering and Information Technology, [S. l.], v. 14, n. 3, p. 113–121, 2026. DOI: 10.4314/drjeit.v14i3.9. Disponível em: https://journals.directresearchpublisher.org/index.php/drjeit/article/view/919. Acesso em: 1 nov. 2026.