Saavedra, N., and D. Mamorra. “Water Shutoff in Horizontal Wells Using Gel Technology”. CT&F - Ciencia, Tecnología y Futuro 1, no. 3 (December 31, 1997): 67–79. Accessed February 27, 2026. https://ctyfjournalecopetrolcomco.biteca.online/index.php/ctyf/article/view/588.