Portela, J., and J Higuera. “Use of New Propant in Hydraulic Fracturing of Tight Gas Wells in Colombian Foothills”. Fuentes, el reventón energético 18, no. 2 (March 11, 2020): 57–67. Accessed July 22, 2024. https://revistas.uis.edu.co/index.php/revistafuentes/article/view/11783.