METHOD OF ACID TREATMENT OF BOTTOM-HOLE ZONE OF NONUNIFORM OIL FORMATION

oil-producing industry. SUBSTANCE: method is realized by successive injection into formation of polyglycerin or polyglycol, hydrochloric acid with addition of surfactant and polyglycerin or polyglycol with subsequent injection of hydrocarbon solvent. EFFECT: higher efficiency of method due to increa...

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Bibliographische Detailangaben
Hauptverfasser:	VAKHITOV M.F, FARKHUTDINOV G.N, KHAJRULLIN I.A, ISMAGILOV T.A, PIKALEV S.A, AKHMETOV N.Z, VAKHITOV T.M, TELIN A.G
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:	oil-producing industry. SUBSTANCE: method is realized by successive injection into formation of polyglycerin or polyglycol, hydrochloric acid with addition of surfactant and polyglycerin or polyglycol with subsequent injection of hydrocarbon solvent. EFFECT: higher efficiency of method due to increased rate of acid reaction with oil-saturated rock. 1 tbl, 2 ex