Producing iron oxide weighting materials for drilling fluids

Details Producing iron oxide weighting materials for drilling fluids Producing iron oxide weighting materials for drilling fluids

1976-06-24

1978-05-30

Vertiz, O. R.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

252 85B, C01G 4902, C09K 700

Patent

active

040924076

ABSTRACT:
Weighting material for a drilling fluid, e.g. a drilling mud, is produced by firing iron oxide solids, e.g. iron oxide ores, calcined pyritic ores or iron-oxide-containing products of other metallurgical processes, in a circulating fluidized bed or rotary furnace at a temperature of 1210.degree. C to 1400.degree. C in an oxidizing atmosphere in which the oxygen content is augmented to transform magnetitic components to oxides of lower magnetic susceptibility. The product is then cooled slowly at least until it reaches a temperature of 780.degree. C, also in an oxidizing atmosphere. The weighting materials have extremely low magnetic susceptibility and thus can be used without interfering with inductive monitoring of the position of the drill string.

REFERENCES:
patent: 2298984 (1942-10-01), Stinson
patent: 2820704 (1958-01-01), Allen
patent: 3245778 (1966-04-01), Ban
patent: 3867128 (1975-02-01), Hancock
patent: 3887474 (1975-06-01), Senfe

Affiliated with

Also associated with

Rating

Producing iron oxide weighting materials for drilling fluids does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-470019