METHODS FOR SERVICING SUBTERRANEAN WELLS

Lost circulation in a subterranean well may be controlled by placing into the lost-circulation zone a first fluid comprising a swellable material, followed by a second fluid comprising a plugging material. The swellable material may be oil-swellable, water-swellable or both. The plugging materials m...

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Bibliographic Details
Main Author MEDVEDEV ANATOLY VLADIMIROVICH
Format Patent
LanguageEnglish
Published 24.09.2015
Subjects
ADHESIVES
CHEMISTRY
DYES
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MINING
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PAINTS
POLISHES
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Summary:Lost circulation in a subterranean well may be controlled by placing into the lost-circulation zone a first fluid comprising a swellable material, followed by a second fluid comprising a plugging material. The swellable material may be oil-swellable, water-swellable or both. The plugging materials may comprise granular materials, lamellar materials, fibers and combinations thereof.
Bibliography:Application Number: US201214414033