COMPOSITION FOR ISOLATION OF BEHIND-CASING FLOWS AND BED HIGH-PERMEABILITY ZONES

摘要

FIELD: oil-and-gas industry.SUBSTANCE: proposed composition comprises 100 wt % of silicic acid ethyl or methyl ether or mixes thereof, 15-50 wt % of polar solvent, 1-3 wt % of chlorides of IV-VIII group metals, and additive representing polypropylene in amount of 0.1-0.5 wt %.EFFECT: controlled solidification time, shorter fluidity loss time, higher efficiency of isolation and plugging-back.1 tbl