High density brine with low crystallization temperature

High density brine with low crystallization temperature

A wellbore fluid comprises a first aqueous base fluid, e.g. a halide brine or formate brine, and a plurality of silica nanoparticles suspended in the first aqueous base fluid. The nanoparticles are present in the fluid in an amount to have an effect of decreasing a crystallization temperature by at...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Hui Joyce Zhang, Steven Young, Xia Wei
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Beschreibung
Zusammenfassung:A wellbore fluid comprises a first aqueous base fluid, e.g. a halide brine or formate brine, and a plurality of silica nanoparticles suspended in the first aqueous base fluid. The nanoparticles are present in the fluid in an amount to have an effect of decreasing a crystallization temperature by at least 4 to 55°F as compared to a second aqueous base fluid without the silica nanoparticles. The silica nanoparticles can be selected from colloidal silica nanoparticles and nano-sized precipitated silica. Also shown is a method of completing a wellbore using the wellbore fluid.