Api 13a section 4 grade bentonite powder:
Physical analysis:
Properties
Protocol
Unit
Required
Result
Viscometer dial reading at 600 rpm
Api spec. 13a:2004/ iso 13500: 1998
R/min
30
34
Yield point / plastic viscosity ratio
Api spec. 13a:2004/ iso 13500: 1998
_
3 max
2.85
Filterate volume
Api spec. 13a:2004/ iso 13500: 1998
Ml
15 max
14.4
Moisture content
Api spec. 13a:2004/ iso 13500: 1998
% by weight
10.0 max.
10
Dry screen analysis(residue greater than 75 microns)%
Api spec. 13a:2004/ iso 13500: 1998
% by weight
4.0 max.
3.0 - 4.0
Api 13a section 6 (ocma) grade bentonite powder:
Properties
Protocol
Unit
Required
Result
Viscometer dial reading at 600 rpm
Api spec. 13a:2004/ iso 13500: 1998
R/min
30
40
Yield point / plastic viscosity ratio
Api spec. 13a:2004/ iso 13500: 1998
_
6 max
4.7
Filterate volume
Api spec. 13a:2004/ iso 13500: 1998
Ml
16 max
15.4
Moisture content
Api spec. 13a:2004/ iso 13500: 1998
% by weight
13.0 max.
10 -12
Dry screen analysis(residue greater than 75 microns)%
Api spec. 13a:2004/ iso 13500: 1998
% by weight
2.5 max.
2.0
Ocma dfcp 4 grade bentonite powder:
Physical analysis:
Properties
Protocol
Unit
Required
Result
Yield
Ocma dfcp-4
Bbls/2000lbs
90 min
99 - 115
A.P.I. Filterate loss
Ocma dfcp-4
Ml
15.0 max.
13 - 14
Moisture content
Api spec. 13a:2004/ iso 13500: 1998
% by weight
15.0 max.
10.0 - 12.0
Dry screen analysis 100 mesh sieve
Ocma dfcp-4
% by weight
98.0 min.
98.5
Wet screen analysis 200 mesh sieve residue
Ocma dfcp-4
% by weight
2.5 max
1.75
