A method of treating a high-temperature well with a fluid containing a viscosifier and a stabilizer package

A method of treating a high-temperature well with a fluid containing a viscosifier and a stabilizer package

A treatment fluid for treating a portion of a high- temperature subterranean formation comprises: a base fluid, wherein the base fluid comprises water; a viscosifier, wherein the viscosifier is a polymer, and wherein the viscosifier is thermally stable up to a temperature of 325 °F; and a stabilizer...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SURYAWANSHI, PRERANA U, DANAIT, ACHALA V, KALGAONKAR, RAJENDRA A
Format: Patent
Sprache:eng
Schlagworte:
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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Beschreibung
Zusammenfassung:A treatment fluid for treating a portion of a high- temperature subterranean formation comprises: a base fluid, wherein the base fluid comprises water; a viscosifier, wherein the viscosifier is a polymer, and wherein the viscosifier is thermally stable up to a temperature of 325 °F; and a stabilizer package, wherein the stabilizer package: (A) comprises a first stabilizer and a second stabilizer, wherein the first stabilizer is an oxygen scavenger and the second stabilizer is a pH adjustor; and (B) is capable of increasing the thermal stability of the viscosifier to a temperature greater than 350 °F, wherein the portion of the subterranean formation has a bottomhole temperature greater than 350 °F. A method of treating a high-temperature subterranean formation comprises introducing the treatment fluid into the portion of the subterranean formation.