ZIRCONIA AND SILICA BASE AGENT FOR DEEP GEOLOGICAL FRACTURES

摘要

P The invention relates to the field of petroleum extraction. / P p IT CONCERNS, MORE PRECISELY, A GRANULAR SUPPORT AGENT WITH HIGH MECHANICAL STRENGTH, OF A VOLUMIC MASS LESS THAN 3250KGM, CHARACTERIZED IN WHAT CONSISTS OF BALLS FORMED BY FUSION, GRANULATION AND SOLIDIFICATION OF A STARTING COMPOSITION COMPRISING, BY WEIGHT ON THE BASIS OF OXIDES, 46 TO 50 PARTS OF ZRO, 54 TO 50 PARTIES OF SIO, THE SUM OF ZRO SIO TOTALING 100 PARTS, 0 TO 19 PARTS OF ALO AND 0 TO 13.5 PARTS OF AT LEAST ONE OXIDE SELECTED IN THE GROUP FORMED BY MGO, CAO, FEO AND TIO. / P P USE BY PETROLEUM . / P