COMPOUND FOR SELECTIVE ISOLATION OF WATER INFLOWS IN OIL WELLS

摘要

FIELD: oil production industry. SUBSTANCE: compound can be used for partial selective isolation of water-bearing part of productive oil bed. Compound has following components: polyacrylamide 0.5-2.0%, condensed sulphite-alcohol residue or lignosulphonate 0.75-1.5%, sodium or potassium bichromate 0.02-0.05%, wood flour 1.0-4.0%, sodium silicate 2.0-8.%. Application of aforesaid compound increases efficiency of isolating water inflows together with improvement of collecting properties of oil part of productive bed. EFFECT: higher efficiency. 2 tbl