OIL DISPLACING REAGENT FOR NON-UNIFORM WATERED FORMATIONS

FIELD: oil and gas industry. ^ SUBSTANCE: invention refers to oil extraction and can be employed for raising oil yield from carbonate and terrygenous water-flooded non-uniform formations under conditions of critical watering at late stages of oil deposits development. Oil displacing reagent for non-...

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Bibliographische Detailangaben
Hauptverfasser:	PAVLOVA LJUBOV' IVANOVNA, IONOV MIKHAIL VASIL'EVICH, ZAVOLZHSKIJ VIKTOR BORISOVICH, ROMANTSEV MIKHAIL FEDOROVICH, LEMESHKO NIKOLAJ NIKOLAEVICH
Format:	Patent
Sprache:	eng ; rus
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:	FIELD: oil and gas industry. ^ SUBSTANCE: invention refers to oil extraction and can be employed for raising oil yield from carbonate and terrygenous water-flooded non-uniform formations under conditions of critical watering at late stages of oil deposits development. Oil displacing reagent for non-uniform watered formations includes water, polyacrylamide and additionally metal-indicator, grafted to polyacrylamide, at a following ratio of components, wt %: polyacrylamide 0.5-2.0, metal-indicator 0.0005-0.05, water - the rest. Also as metal indicator a reagent contains polyvalent metals - nickel or cobalt, or vanadium or aluminium or chromium. ^ EFFECT: increased efficiency of well development. ^ 2 cl, 8 ex, 9 tbl