Barite

タイトルまたは説明

1. Physical Properties :

The material as received shall be white/light greyish

white/light pinkish white free flowing powder free from

dirt and foreign matt

2. Specific Gravity of material : 4.*5

as received,at *6 +/- 2 Deg.C minimum.

3. Fineness :

(a) Wet Screen Analysis - Passing through *5 micron

seive, (ISS 6/ BSS **0/ASTM **0),% by mass,

minimum : *7.*0

Passing through *3 micron seive,(ISS 5/ BSS

**0/ASTM **0,% by mass : *0 +/- 5

4. Insoluble Minus Silica % by mass, minimum. :

*0.*0

5. Water Soluble Content : 0.*2

% by mass, maximum.

6. Performance Test : Prepare a bentonite

suspension by mixing 7.5 gm of OIL approved

bentonite per **0 ml distilled water,Stir the

suspension in a multimixer for *5 minutes so that no

lumps are left in the suspension after the stirring

period. Age the suspension for *4 hrs at *6 +/- 2

Deg.C. After the lapse of the aging period, adjust the

apparent viscosity of the suspension in the range of

****0 cps with distilled water if necessary. Load the

suspension with the barytes sample as received, to

1.*0 sp. gravity weight and stir in multimixer for *0

minutes. Measure apparent viscosity of mud so

prepared at *6 +/- 2 deg.C. which should be as

follows.

Apparent Viscosity, cp, maximum : *0

N.B. Apparent viscosity will be measured by a Fann

VG meter.