DELAYED-ACTION ACID AND GELLING COMPOSITION

FIELD: oil producing industry, particularly, compositions based on hydrochloric acid for treatment of carbonate and carbonate-containing formations of oil deposits. SUBSTANCE: delayed-action acid and gelling composition has aluminosilicate, lignosulfonate and hydrochloric acid with the following rat...

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Bibliographic Details
Main Authors TAKHAUTDINOV R.SH, AKHMADISHIN R.Z, OVCHINNIKOV R.V, KHLEBNIKOV V.N
Format Patent
LanguageEnglish
Russian
Published 10.12.2002
Edition7
Subjects
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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Summary:FIELD: oil producing industry, particularly, compositions based on hydrochloric acid for treatment of carbonate and carbonate-containing formations of oil deposits. SUBSTANCE: delayed-action acid and gelling composition has aluminosilicate, lignosulfonate and hydrochloric acid with the following ratio of components, mas.%: aluminosilicate (in terms of dry matter), 0.5-10.0; lignosulfonate (in terms of dry matter), 0.5-10.0; hydrochloric acid, the balance. Used in composition may be natural or synthetic aluminosilicate, including process wastes; may be also used nepheline, synthetic zeolites, wastes of zeolite production - zeolite slimes, high-alumina cement, etc. EFFECT: higher efficiency of treatment of carbonate reservoirs. 5 tbl, 5 ex
Bibliography:Application Number: RU20020107183