Graphene Oxide as a High-Performance Fluid-Loss-Control Additive in Water-Based Drilling Fluids

Autor:	Dmitry V. Kosynkin, Jay R. Lomeda, Jason T. Scorsone, James M. Tour, Gabriel Ceriotti, Arvind D. Patel, James Friedheim, Kurt C. Wilson
Rok vydání:	2011
Předmět:	Materials science Shear thinning Graphene Oxide law.invention Filter cake chemistry.chemical_compound chemistry law Drilling fluid medicine General Materials Science Composite material Suspension (vehicle) Filtration Xanthan gum medicine.drug
Zdroj:	ACS Applied Materials & Interfaces. 4:222-227
ISSN:	1944-8252 1944-8244
DOI:	10.1021/am2012799
Popis:	Graphene oxide (GO) performs well as a filtration additive in water-based drilling fluids at concentrations as low as 0.2 % (w/w) by carbon content. Standard American Petroleum Institute (API) filtration tests were conducted on pH-adjusted, aqueous dispersions of GO and xanthan gum. It was found that a combination of large-flake GO and powdered GO in a 3:1 ratio performed best in the API tests, allowing an average fluid loss of 6.1 mL over 30 min and leaving a filter cake ~20 μm thick. In comparison, a standard suspension (~12 g/L) of clays and polymers used in the oil industry gave an average fluid loss of 7.2 mL and a filter cake ~280 μm thick. Scanning electron microscopy imaging revealed the extreme pliability of well-exfoliated GO, as the pressure due to filtration crumpled single GO sheets, forcing them to slide through pores with diameters much smaller than the flake's flattened size. GO solutions also exhibited greater shear thinning and higher temperature stability compared to clay-based fluid-loss additives, demonstrating potential for high-temperature well applications.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::210481855e7c17e86e9c27f0d52e1cc0 https://doi.org/10.1021/am2012799 Zobrazit plný text záznamu