COMPOSITIONS AND METHODS FOR SERVICING SUBTERRANEAN WELLS

COMPOSITIONS AND METHODS FOR SERVICING SUBTERRANEAN WELLS

Disclosed are pumpable-fluid compositions and methods for establishing hydraulic isolation in cemented subterranean wells. The fluid compositions comprise solids-free solutions of water-soluble polymers. Upon entering voids and cracks in the cement sheath and contacting the set-cement surfaces, the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MICHAUX, MICHEL, JAMES, SIMON, KOMOCKI, SYLWIA, PYATINA, TATIANA
Format: Patent
Sprache:eng ; fre
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:Disclosed are pumpable-fluid compositions and methods for establishing hydraulic isolation in cemented subterranean wells. The fluid compositions comprise solids-free solutions of water-soluble polymers. Upon entering voids and cracks in the cement sheath and contacting the set-cement surfaces, the fluid gels and forms a seal that prevents further leakage.