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US 11,884,880 B2Granted
Surfactant compositions comprising solid substrates for subterranean well operations
AssigneeHalliburton Energy Services, Inc.
InventorsPaul Joseph Jones, Amlan Datta, Brittany Michelle Elbel, Kyriacos Agapiou
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Abstract
A method of preparing a solid surfactant composite may include: coating a liquid water-wetting surfactant on a solid carrier; and drying the solid carrier to produce the solid surfactant composite. A method may include: introducing a spacer fluid into a wellbore, the spacer fluid comprising a solid surfactant composite; and displacing a fluid in the wellbore using the spacer fluid.
Claims13
A method of preparing a solid surfactant composite comprising:
- spraying a mixture comprising a liquid water-wetting surfactant comprising an alcohol ethoxylate, a dispersant comprising naphthalene sulfonate, a defoamer comprising polydimethyl siloxane, and a carrier fluid comprising an alcohol on a solid carrier comprising calcium silicate as a single liquid coating;
- and
- after the step of spraying, drying the solid carrier and the single liquid coating to produce the solid surfactant composite, wherein after drying, the solid surfactant composite comprises dried water-wetting surfactant, dried dispersant, and dried defoamer.
Dependencies are inferred from the claim text.