Novo artigo publicado!! Increasing Recovery Factor in Heavy Oil Fields Using Alternating Steam and Surfactant Injection (2023)

28/05/2023

Increasing Recovery Factor in Heavy Oil Fields Using Alternating Steam and Surfactant Injection (2023)

(Energy & Fuels)

Autores: Jefferson David Coutinho de Araujo, Gregory Oliveira, Maria Clara de Meneses Lourenço, Moisés Freitas, Dennys Correia da Silva, Daniel Alberton Haas, Tereza Neuma de Castro Dantas, Marcos Allyson Rodrigues and Alcides de Oliveira Wanderley Neto

The authors thank the Laboratory of Petroleum Reservoir Engineering (Laboratório de Eng. de Reservatórios - LABRES/UFRN), Laboratory of Surfactant Technology and Separation Processes (LTT/IQ/UFRN) and the Laboratory of Membranes and Colloids (LAMECO/IQ/UFRN) of the Instituto de Chemistry (IQ) from the Universidade Federal do Rio Grande do Norte (UFRN) for offering space, equipment, and techniques used in this manuscript. They also thank PRH-ANP-26.1 and FINEP for their financial support, Oxiteno S.A. for the surfactants used in this research and Petrobras for intellectual support.

The experimental study investigated the application of solutions of ethoxylated nonylphenol surfactants (NP-10EO and NP-100EO) combined with steam injection into banks at different concentrations and injection configurations. The results showed that combining the NP-100EO surfactant (0.5% m/m) with steam demonstrated the highest oil recovery (64.88%) compared to conventional steam (45.19%). The most effective configurations were surfactant + steam + surfactant (65.06%) and surfactant + steam + water (65.88%). These findings suggest that the proposed technique of steam injection and surfactant solution could be a promising alternative. By revitalizing marginal fields, this technique could help extend production and stimulate local and regional development.

The experimental study investigated the application of solutions of ethoxylated nonylphenol surfactants (NP-10EO and NP-100EO) combined with steam injection into banks at different concentrations and injection configurations. The results showed that combining the NP-100EO surfactant (0.5% m/m) with steam demonstrated the highest oil recovery (64.88%) compared to conventional steam (45.19%). The most effective configurations were surfactant + steam + surfactant (65.06%) and surfactant + steam + water (65.88%). These findings suggest that the proposed technique of steam injection and surfactant solution could be a promising alternative. By revitalizing marginal fields, this technique could help extend production and stimulate local and regional development.


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