Propping agent based on zirconia and silica for deep...

Details Propping agent based on zirconia and silica for deep... Propping agent based on zirconia and silica for deep...

E - Fixed Constructions

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B

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E21B 43/267 (2006.01) C04B 35/48 (2006.01) C09K 8/80 (2006.01)

Patent

CA 1212533

PROPPING AGENT BASED ON ZIRCONIA AND SILICA FOR DEEP GEOLOGICAL FRACTURES. Daniel URFFER SOCIETE EUROPEENNE DES PRODUITS REFRACTAIRES ABSTRACT OF THE DISCLOSURE The invention relates to the field of petroleum extraction. It relates, more precisely, to a granular propping agent of high mechanical resistance, having a density less than 3250 kg/m3, which consists of balls formed by melting, granulating and solidifying an initial composition comprising by weight, on the basis of the oxides, 46 to 50 parts of ZrO2, 54 to 50 parts of SiO2, the total of ZrO2 + SiO2 amounting to 100 parts, 0 to 19 parts of Al2O3 and 0 to 13.5 parts of at least one oxide selected from the group formed by MgO, CaO FeO and TiO2.

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