Rheological and thermal analysis of bentonites for water base drilling fluids


ENERGY SOURCES, vol.26, no.2, pp.145-151, 2004 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 26 Issue: 2
  • Publication Date: 2004
  • Doi Number: 10.1080/00908310490258524
  • Title of Journal : ENERGY SOURCES
  • Page Numbers: pp.145-151
  • Keywords: rheology, bentonite, thermal analysis, drilling fluid, rheological model


The objective of this research is to investigate the rheological and thermal properties of bentonites for water base drilling fluids. Rheological experiments were performed with 4 different bentonite samples and clay percentages, cation-exchange capacity (CEC), swelling volume, pH, and physical and rheological properties of the samples are determined. The thermal behaviors of bentonite samples were investigated using simultaneous thermogravimetry (TG/DTG) and differential thermal analysis (DTA) techniques. It was observed that all bentonite samples exhibit 2 weight loss events on heating. Similar behavior was observed with the bentonite samples studied in the literature.