Process of producing iron oxide weighting materials for...

Details Process of producing iron oxide weighting materials for... Process of producing iron oxide weighting materials for...

C - Chemistry, Metallurgy

01

G

23/269, 31/33

C01G 49/02 (2006.01) C09K 8/03 (2006.01) C22B 1/02 (2006.01)

Patent

CA 1058382

ABSTRACT OF THE DISCLOSURE: The invention is concerned with a process for producing weighting materials for drilling fluids, in which solids consisting mainly of iron oxide are fired at temperatures above 1200°C in an oxidizing atmosphere and subsequently cooled. According to the invention, the solids are fired at a temperature of 1210° to 1400°C under an oxidizing atmosphere having an oxygen partial pressure in excess of the equilibrium oxygen partial pressure of the iron oxide at the firing temperature . The solids are then cooled slowly to 780°C also in an oxidizing atmosphere. The so obtained weighting materials have an extremely low magnetic susceptibility and thus can be used without interfering with the inductive monitoring of the position of the drilling fluids.

255674

Affiliated with

Also associated with

Rating

Process of producing iron oxide weighting materials for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process of producing iron oxide weighting materials for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of producing iron oxide weighting materials for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-553887