Drilling mud comprising a high surface area magnetite...

Details Drilling mud comprising a high surface area magnetite... Drilling mud comprising a high surface area magnetite...

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D21D 5/04 (2006.01) D21D 5/02 (2006.01)

Patent

CA 1254732

ABSTRACT OF THE DISCLOSURE A DRILLING MUD COMPRISING A HIGH SURFACE AREA MAGNETITE CONCENTRATE A mixture of iron oxides obtained by pyrite roasting is subjected to magnetic separation. The magnetic fraction so obtained is a magnetite concentrate which is highly efficient in absorbing hydrogen sulfide evolved from oil drilling wells. It can be incorporated into drilling muds even in non-alkaline medium.

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