Purified Smectite Clays Organofilized with Ionic Surfactant for Use in Oil-Based Drilling Fluids

Abstract:

The main bentonite reservs in Brazil are located in Boa Vista, PB. In order on widening the reserves, on the mineral production and on the consolidation of the state as the largest producer in the country, many studies have been carried out by UFCG on the clays recently discovered in the Districts of Cubati and Pedra Lavrada. This work is intended for the characterization of new deposits, for the development of natural and organofilic clays, which will be employed in oil-based drilling fluids. The characterization of the clay was done by means of the following techniques: GA, XRD, EDX, TG and TGA. For purification, a hydrocyclone was used, and in the organofilization process, the Praepagen-WB surfactant was used, in three proportions. The results suggest that the characterization is typical of bentonite. The purification process proved to be efficient and the rheological study revealed that just one of the clays is suitable for application in oil-based drilling fluids.

• Periodical: Materials Science Forum (Volumes 798-799)
• Pages: 21-26
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.798-799.21
• Online since: June 2014
• Authors: J.M.R. de Figueirêdo*, J.P. Araújo, Isabelle Albuquerque da Silva, Juliana Melo Cartaxo, Gelmires Araújo Neves, Heber Carlos Ferreira
• Keywords: Drilling Fluids, Purification, Smectite

References

[1] M.M. Silva et. al: Scientia Plena Vol. 7 (9) (2011).

[2] G.T. Miller and S. Spoolman: Living in the environment: principles, connections and solutions. (16 ed. Belmont: Brooks/Cole 2009).

[3] E. Texeira Neto, A.A. Texeira Neto: Química Nova Vol. 32 (3) (2009), p.809.

[4] M.F. Delbem, T.S. Valera, F.R. Valenzuela Diaz and N.R. Demarquette: Química Nova Vol. 33 (2) (2010).

[5] A. R. V. Silva, H. C. Ferreira, Esmectitas organofílicas, conceitos, estruturas, propriedades, síntese, usos industriais, produtores /fornecedores nacionais. REMAP, v. 3, n. 3, pp.1-11, (2008).

[6] K.C. Nóbrega et. al.: REMAP Vol. 6 (2) (2011), p.84.

[7] L.B. Paiva, A.R. Morales and F.R. Valenzuela Diaz: Applied Clay Science (2008).

[8] Petrobras, Argila organofílica para fluidos de perfuração à base de óleo – especificação e método de ensaio, EP-1EP-00023-A, (2011).

[9] H.S. Ferreira: Otimização do Processo de Organofilização de Bentonitas Visando seu Uso em Fluidos de Perfuração não Aquosos. Doutorado. (Tese). Campina Grande, 2009. Universidade Federal de Campina Grande (UFCG). (PB).

DOI: 10.14393/19834071.2015.30311

[10] M.D. Foster: Amer. Miner. Vol. 38 (1953), p.994.

[11] J.M.R. Costa, I.A. Silva, H.S. Ferreira, R.R. Menezes, G.A. Neves and H.C. Ferreira: Cerâmica Vol. 58 (2012), p.419.

[12] F.R. Valenzuela Díaz, Preparação a nível de laboratório de algumas argilas esmectíticas organofílicas. Doutorado (Tese). São Paulo, 1994. Universidade de São Paulo (USP/POLI). (SP).

DOI: 10.29381/0103-8559/20203004513-20

[13] P. Souza Santos: Tecnologia de argilas. (Ed. Edgard Blücher v. 1 e v. 3 São Paulo, 1992).

[14] R.R. Menezes, L.N. Marques, L.A. Campos, H.S. Ferreira, L.N. L Santana and G. A Neves: Applied Clay Science (2010).