HEAT-RESISTANT BLOCK CHARGE COMPOSITION AND A METHOD FOR PREPARATION THEREOF Russian patent published in 2002 - IPC

FIELD: oil and gas production. SUBSTANCE: in particular, it goes about developing composition for a charge used for intensification of oil production. According to invention, composition includes oxidant, combustible binder (thermoelasticoplastic/polystyrene mixture), and additives. Charge is prepared using following operations: combustible binder is preliminarily dissolved in volatile solvent, resulting solution is combined with oxidants and additives, resulting mixture is preliminarily compacted to remove solvent, and charge is manufactured by through-pressing followed by partial drying and molding of charge. EFFECT: simplified process and improved safety due to reduced treatment pressure, and increased heat resistance level. 5 cl, 1 tbl