Development of Organoclays for Use in Oil-Based Drilling Fluids

Abstract:

The organoclays are derived from bentonite clays treated in aqueous solution with surfactants, which are incorporated into the interlayer surface of clays, covering them with an organic layer; so, the naturally hydrophilic clay becomes hydrophobic. This paper proposes a study to find the dispersant media (diesel, paraffin or ester) which is more suitable for use in fluids, using the bentonite clay Cloisite Na +, treated with ionic surfactants Praepagen HY and Praepagen WB. The organoclay obtained was characterized by X-ray diffraction, and we measured the apparent viscosity and plastic dispersions. We observed the importance of the type of surfactant and dispersant amid to obtain organoclays for non-aqueous drilling fluids with the dispersants that meet existing specifications for drilling oil wells.

• Periodical: Materials Science Forum (Volumes 727-728)
• Pages: 1557-1562
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.727-728.1557
• Online since: August 2012
• Authors: Mirtys Allamana Ferreira Cardoso, Heber Sivini Ferreira, Isabelle Albuquerque da Silva, Heber Carlos Ferreira, Gelmires Araújo Neves
• Keywords: Bentonite, Fluids, Organoclay

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