Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
WELLBORE SERVICING FLUID COMPRISING A CELLULOSE ETHER
A cellulose ether having (i) one or more substituents selected from the group consisting of methyl, hydroxyethyl and hydroxypropyl, (ii) one or more hydrophobic substituents, and (iii) one or more cationic, tertiary amino, or anionic substituents, and having a retained dynamic viscosity, %η80/25, of at least 30 percent, wherein %η80/25=[dynamic solution viscosity at 80° C./dynamic solution viscosity at 25° C.]×100, the dynamic solution viscosity at 25° C. and 80° being measured as 1% aqueous solution, is useful for modifying the viscosity of a composition selected from the group consisting of wellbore servicing fluids, cementitious formulations, ceramics, metal working fluids and cutting fluids.
WELLBORE SERVICING FLUID COMPRISING A CELLULOSE ETHER
A cellulose ether having (i) one or more substituents selected from the group consisting of methyl, hydroxyethyl and hydroxypropyl, (ii) one or more hydrophobic substituents, and (iii) one or more cationic, tertiary amino, or anionic substituents, and having a retained dynamic viscosity, %η80/25, of at least 30 percent, wherein %η80/25=[dynamic solution viscosity at 80° C./dynamic solution viscosity at 25° C.]×100, the dynamic solution viscosity at 25° C. and 80° being measured as 1% aqueous solution, is useful for modifying the viscosity of a composition selected from the group consisting of wellbore servicing fluids, cementitious formulations, ceramics, metal working fluids and cutting fluids.
WELLBORE SERVICING FLUID COMPRISING A CELLULOSE ETHER
BOHRLOCHWARTUNGSFLUID MIT EINEM CELLULOSEETHER
FLUIDE D'ENTRETIEN DE PUITS DE FORAGE COMPORTANT UN ÉTHER DE CELLULOSE
PARTAIN EMMET M (Autor:in) / KREEGER RUSSELL L (Autor:in)
27.03.2019
Patent
Elektronische Ressource
Englisch
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