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Hydrophobic silica nanoparticle-stabilized invert emulsion as drilling fluid for deep drilling.
- Source :
-
Petroleum Science (Springer Nature) . Feb2017, Vol. 14 Issue 1, p105-115. 11p. - Publication Year :
- 2017
-
Abstract
- An oil-based drilling fluid should be stable and tolerant to high temperatures for use in deep drilling. An invert emulsion of water in oil is a good choice as an oil-based drilling fluid which is a mixture of a solid phase and two immiscible liquid phases stabilized by a polymeric surfactant. In deep drilling, due to high temperatures, the polymeric surfactant degrades and a phase separation occurs. Here, octadecyltrimethoxysilane-modified silica nanoparticles were used to form a stable invert emulsion of water in oil for the drilling fluid model which resulted in a milky fluid with the formation of 60 µm water droplets. In addition, rheological study showed that using hydrophobic silica nanoparticles resulted in a stable water in oil invert emulsion with desired properties for a drilling fluid that can be modified by adjusting the nanoparticle nature and content. Aging experiments at 120 °C indicated that they also have good stability at high temperatures for challenging drilling operations. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16725107
- Volume :
- 14
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Petroleum Science (Springer Nature)
- Publication Type :
- Academic Journal
- Accession number :
- 121120328
- Full Text :
- https://doi.org/10.1007/s12182-016-0135-0