A COMPOSITION FOR BLOCKING PRODUCTIVE RESERVOIRS AND GASEOUS CONDENSATE BOREHOLES

摘要

A composition for blocking productive reservoirs of gaseous and gas-condensate boreholes comprises aqueous solution of bischofite and starch. Additionally it contains carbamide and nitrilemethylene phosphonic acid. As starch the potato or corn starch is used, and the aqueous solution of bischofite is between 1.1 and 1.4 g/cm3.