Improved high performance phosphorus-containing corrosion...

Details Improved high performance phosphorus-containing corrosion... Improved high performance phosphorus-containing corrosion...

C - Chemistry, Metallurgy

23

F

C23F 11/167 (2006.01) C09K 8/54 (2006.01) C23F 11/08 (2006.01)

Patent

CA 2313877

A corrosion inhibitor comprising a quantity of a phosphorylated oxyalkylated polyol at a pH of 5.0 or higher which produces a first level of corrosion loss in an oxygenated corrosive system under given conditions, and an amount of a passivating agent effective to decrease the corrosion loss under said given conditions to a second level which is less than the first level. The passivating agent minimizes the impact of the corrosion inhibitor on the rheology of drilling system fluids.

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