Encapsulated liquid for well treatment

Liquid is encapsulated by first encapsulating a solid in a semipermeable membrane, placing the capsule in a liquid which passes through the membrane into the capsule to dissolve the solid, and then maintaining the capsule in a liquid until substantially all the solid has been driven from the capsule...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CASSIDY, JUANITA M, BLAUCH, MATTHEW E
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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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Beschreibung
Zusammenfassung:	Liquid is encapsulated by first encapsulating a solid in a semipermeable membrane, placing the capsule in a liquid which passes through the membrane into the capsule to dissolve the solid, and then maintaining the capsule in a liquid until substantially all the solid has been driven from the capsule, leaving liquid encapsulated therein. The capsules are useful downhole for releasing their liquid contents for well treatment.