Lamberti Spa

Sama Nazar Makiah

Andrea Balestrini

Giuseppe Li Bassi

Giovanni Floridi

Alberto Zeffiro

Christopher Quenton Villareal

Bruno Pegorari

Quenton Christopher Villareal

Solvent-based suspensions of asphaltite comprising a carrier fluid, an asphaltite powder and a suspending agent, wherein said suspending agent is a copolymer of a monoethylenically unsaturated monomer containing a carboxylic group and of a C-C(meth)acrylic acid alkyl ester; subterranean treatment fluid containing the solvent-based suspensions of asphaltite and method for treating a subterranean formation by use of the subterranean treatment fluid.

Solvent-based asphaltite suspensions

The present invention relates to a water-based subterranean treatment fluid, comprising: a) a continuous aqueous phase; b) an internal oil phase; c) from 0.1 to 15 g/100 ml, based on the total fluid volume, of an emulsifying composition comprising a first surfactant having a HLB from 10 to 20 and a second surfactant obtained by reacting a saturated or unsaturated aliphatic monocarboxylic acid, ethylene oxide and a hydroxyalkylamine. The invention further relates to a method for treating a subterranean formation comprising providing said water-based subterranean treatment fluid.

Emulsifiers for water-based subterranean treatment fluids

The present invention relates to a hydrocarbon-free emulsion stabilizer, to water-in-oil subterranean treatment fluids comprising said stabilizer and having improved stability and environmental compatibility, and to their use in subterranean treatments.

Hydrocarbon-free emulsifier

Water-in-oil subterranean treatment fluids with improved stability and environmental compatibility comprise esteramides as emulsion stabilizer.

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Richmond, TX, United States of America

Sama Nazar Makiah