METHOD OF DELAYING CROSSLINKING IN WELL TREATMENT OPERATION

Crosslinking of a crosslinkable viscosifying agent and a crosslinking agent may be delayed in a well treatment fluid by incorporated within the fluid a glutamic-N,N-diacetic acid salt, such as a glutamic-N,N-diacetic acid sodium salt like tetrasodium glutamate diacetate. The crosslinking agent may b...

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Bibliographic Details
Main Authors GUPTA D. V. SATYANARAYANA, CAWIEZEL KAY ELAINE
Format Patent
LanguageEnglish
Published 08.08.2013
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:Crosslinking of a crosslinkable viscosifying agent and a crosslinking agent may be delayed in a well treatment fluid by incorporated within the fluid a glutamic-N,N-diacetic acid salt, such as a glutamic-N,N-diacetic acid sodium salt like tetrasodium glutamate diacetate. The crosslinking agent may be a zirconium containing crosslinking agent like zirconium (IV) acetyl acetonate. The viscosifying agent may be guar or a guar derivative such as carboxyalkyl guars and hydroxyalkylated guars like carboxymethyl guar, hydroxypropyl guar, hydroxyethyl guar, hydroxybutyl guar and carboxymethylhydroxypropyl guar.
Bibliography:Application Number: US201213364474