METHOD FOR INCREASING OIL RECOVERY FROM BEDS

FIELD: oil production industry. SUBSTANCE: according to method, improved technological efficiency is achieved due to fact that method of increasing oil recovery from beds implies injection of muriatic acid solution, organic solvent, surface-active material, and water. Initially injected is emulsion...

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Bibliographische Detailangaben
Hauptverfasser:	MAZAEV V.V, SHPUROV I.V, KOVAL' JA.G, GUSEV S.V, RUCHKIN A.A, NAROZHNYJ O.G, ABATUROV S.V
Format:	Patent
Sprache:	eng
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:	FIELD: oil production industry. SUBSTANCE: according to method, improved technological efficiency is achieved due to fact that method of increasing oil recovery from beds implies injection of muriatic acid solution, organic solvent, surface-active material, and water. Initially injected is emulsion of organic solvent, water and surface-active material. This emulsion additionally contains alkali agent. Content of emulsion components is as follows, mass%: surface-active material 0.5-10; organic solvent 5-30; alkali agent 1-10; water - the balance. Used as surface-active material is mixture of oil-soluble and water-soluble nonionogenic surface-active materials. Used as alkali agent is for example sodium carbonate or sodium phosphate. EFFECT: higher efficiency. 3 cl, 1 tbl