Lost circulation pill for severe losses using viscoelastic surfactant technology

A lost circulation composition includes at least one viscoelastic surfactant that can self-assemble into entangled worm-like micellar structures, increasing the viscosity of the composition at low shear rates. The entanglements of the worm micelles can be reduced at high shear rates, but can be rege...

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Bibliographic Details
Main Authors Celia-Sliva, Lucas Grillo, Luzardo, Juan Pablo, Rodrigues Jr., Jorge De Almeida, Oliveira, Eliane Padua, Deville, Jay Paul, Pantano, Ioana Agustina Gianoglio
Format Patent
LanguageEnglish
Published 30.05.2019
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:A lost circulation composition includes at least one viscoelastic surfactant that can self-assemble into entangled worm-like micellar structures, increasing the viscosity of the composition at low shear rates. The entanglements of the worm micelles can be reduced at high shear rates, but can be regenerated when the shear rates are reduced. The viscosifying micelle behavior is present at temperatures above 100C and regardless of salinity.
Bibliography:Application Number: AU20170401563