Dispersions of water-soluble polymers for hydraulic fracturing

The present application relates to an injection fluid F for hydraulic fracturing comprising at least one synthetic water-soluble polymer P having a weight average molecular weight greater than or equal to 1 million Daltons, said fluid being prepared according to a method comprising the following con...

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Bibliographic Details
Main Authors TAVERNI BRUNO, TRILLE SIHAM, COCOLO SEBASTIEN, FAVERO CEDRICK
Format Patent
LanguageChinese
English
Published 14.05.2024
Subjects
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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Summary:The present application relates to an injection fluid F for hydraulic fracturing comprising at least one synthetic water-soluble polymer P having a weight average molecular weight greater than or equal to 1 million Daltons, said fluid being prepared according to a method comprising the following consecutive steps: a) preparing an inverse emulsion E by free-radical polymerization, the invention relates to a method for producing a dispersion D comprising the following steps: a) preparing an inverse emulsion comprising 15% to 40% by weight of a polymer P, 20% to 60% by weight of water and at least one hydrocarbyl solvent, the percentages being expressed by weight relative to the weight of emulsion E, b) distilling the inverse emulsion E to obtain a dispersion D comprising 40% to 60% by weight of particles of a polymer P, less than 10% by weight of water and at least one hydrocarbyl solvent, the percentage is expressed by weight relative to the weight of the dispersion D, c) diluting the dispersion D with 1% to 1
Bibliography:Application Number: CN202280062312