METHOD FOR ISOLATION OF WATER-BEARING BEDS

FIELD: oil and gas production industry. SUBSTANCE: this relates to isolation of passages in water-bearing beds, including those with mineralized brine water. Improved efficiency of isolation operations in wells with mineralized brine water is achieved by application of working solution which creates...

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Bibliographische Detailangaben
Hauptverfasser:	SHAKHMAEV Z.M, RAKHMATULLIN V.R, SHARIPOV T.V, MUFAZALOV R.SH
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 and gas production industry. SUBSTANCE: this relates to isolation of passages in water-bearing beds, including those with mineralized brine water. Improved efficiency of isolation operations in wells with mineralized brine water is achieved by application of working solution which creates water-proofing screen due to its chemical reaction with ions of various chemical elements present in brine water. According to method, injected into well is product of interaction of phosphoric acid and carbamide with density of 1.285-1.325 g/cm . EFFECT: high efficiency. 1 cl, 2 tbli