Portal de Periódicos da CAPES

Artigo Produção Nacional Revisado por pares

BIBTEX RIS

Formulation of new microemulsion systems containing produced water for removal of filter cake from olefin-based drilling fluid

2020; Elsevier BV; Volume: 193; Linguagem: Inglês

10.1016/j.petrol.2020.107425

1873-4715

Dennys Correia da Silva, Carolina Rayanne Barbosa de Araújo, Júlio Cézar de Oliveira Freitas, Marcos Allyson Felipe Rodrigues, Alcides de Oliveira Wanderley Neto,

Enhanced Oil Recovery Techniques

In the oil extraction process, drilling fluids can create a thin layer on the walls of the oil well known as filter cake. Its removal is essential for proper cementation between the coating and the rock formation. In this work, microemulsion systems based on produced water were formulated containing nonionic surfactants of different degrees of ethoxylation for cleaning the plaster of olefin-based drilling fluid. An experimental planning of Scheffé net was carried out showing the total efficiency of removing filter cake (100%) in 80.5s. Studies on thermogravimetry, wettability, cement compatibility and compressibility analysis have shown that the systems are suitable for the conditions required in oil wells.