PROCESS OF DEVELOPMENT OF FLOODED OIL DEPOSIT

FIELD: oil production, extraction of oil from inhomogeneous formations at latest stage of development of oil deposit. SUBSTANCE: process of development of flooded oil deposit includes successive pumping of fringes of aqueous solution of reagent containing sodium salts of organic acids and aqueous so...

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Bibliographische Detailangaben
Hauptverfasser:	LEJFRID A.V, CHEREPANOVA N.A, VJATCHININ M.G, GALIMOV I.M, SADYKOV M.R, MAKEEV G.A, RAMAZANOV R.G, SERGIENKO V.N, MAVRIN M.JA
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	FIELD: oil production, extraction of oil from inhomogeneous formations at latest stage of development of oil deposit. SUBSTANCE: process of development of flooded oil deposit includes successive pumping of fringes of aqueous solution of reagent containing sodium salts of organic acids and aqueous solution of salt of polyvalent metal into formation through injection well. Saponified wood resin with 0.5-1.0 proportion of saponified wood resin and salt of polyvalent metal with water buffer between fringes is utilized in the capacity of above-mentioned reagent. Water soluble salt of aluminum, calcium, iron, chromium is employed as mentioned salt. EFFECT: increased oil output of formation due to equalization of permeable inhomogeneity of formations and intensification of oil-saturated formations. 1 cl, 3 tbl