| abstract |
An aqueous slurry composition comprising water, particles and a fluoro-organosiloxane or fluoro-organosilane which renders the particulate surface hydrophobic. The particle size is about 150 to 2000μm. The particulates could be sand, ceramics, shale, coal or glass beads. The slurry is used in petroleum and pipeline industries for hydraulic fracturing, drilling, completion and sand packing operations. The composition maybe formed by mixing the particulate with a medium containing a fluoro-organosiloxane or fluoro-organosilane to render the surface of the particulates hydrophobic, separating the particulate from the medium and blending the hydrophobic particulates with water. |