Propping agent based on zirconia and silica for deep geological

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

1985-08-06

1986-08-26

Novosad, Stephen J.

Wells

Processes

Specific propping feature

166308, E21B 43267

Patent

active

046076972

ABSTRACT:
The invention relates to a granular propping for use in petroleum extraction which has a high mechanical resistance and a density of between 3150 and 3250 kg/m.sup.3, the propping agent consisting of balls formed by melting, granulating and solidifying an initial composition comprising by weight, on the basis of the oxides, 47.1 to 48.7 parts of ZrO.sub.2, 52.9 to 51.3 parts of SiO.sub.2, the total of ZrO.sub.2 +SiO.sub.2 amounting to 100 parts, 8.2 to 16.9 parts of Al.sub.2 O.sub.3 and 4.1 to 8.5 parts of at least one oxide selected from the group formed by MgO, CaO, FeO and TiO.sub.2.

REFERENCES:
patent: 4072193 (1978-02-01), Sarda et al.
patent: 4106947 (1978-08-01), Recasens et al.
patent: 4427068 (1984-01-01), Fitzgibbon
patent: 4522731 (1985-06-01), Lunghofer

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