Pachón Contreras, Zarith del Pilar, Fernando Andrés Rojas Ruíz, Miguel José Rondón Antón, Juliana Carolina Vidal Prada, and Freddy Alexander Pulido Solano. “Petroleum Sulfonates Preparation and Evaluation for Chemical Enhanced Oil Recovery in Colombian Oil Fields”. CT&F - Ciencia, Tecnología y Futuro 5, no. 5 (December 15, 2014): 55–73. Accessed April 19, 2024. https://ctyf.journal.ecopetrol.com.co/index.php/ctyf/article/view/330.