Concentrated suspension of particulate additives for...

Details Concentrated suspension of particulate additives for... Concentrated suspension of particulate additives for...

2007-07-30

2009-06-09

Bates, Zakiya W (Department: 3676)

Wells

Processes

Placing fluid into the formation

C166S279000, C166S300000, C166S308200

Reexamination Certificate

active

07543644

ABSTRACT:
The handling, transport and delivery of particulate materials, particularly fine particles, may be difficult. Alkaline earth metal oxide particles such as magnesium oxide (MgO) may be suspended in glycerin and/or alkylene glycols such as propylene glycol up to loadings of 51 wt %. Such suspensions or slurries make it easier to deliver MgO and similar agents into fluids, such as aqueous fluids gelled with viscoelastic surfactants (VES). The MgO serves as stabilizers and/or fluid loss control agents for VES-gelled fluids used to treat subterranean formations, e.g. for well completion or stimulation in hydrocarbon recovery operations. The particle size of the magnesium oxide or other agent may be between 1 nanometer to 0.4 millimeter.

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