BAKER HUGHES - Drilling Fluids Reference Manual

Baker Hughes Drilling Fluids
OMNI-LUBE
OMNI-LUBE is an environmentally accepted polymeric fatty acid solution, which will effectively
reduce torque and drag in most emulsion based drilling fluids. Results obtained from field
applications indicate that the friction in fluids treated with OMNI-LUBE can be lowered by up to 25%
compared to untreated fluids, and torque is less erratic. It is a filming type extreme pressure lubricant
and is particularly effective in lowering steel-to-steel friction.
OMNI-LUBE is a liquid and will not screen out of the system. As a filming type lubricant, product
depletion will occur and will be related to the coating of drill pipe and casing in the wellbore, filter
cake in the open hole and cuttings generated by the drill bit. OMNI-LUBE is compatible with most
emulsion systems and suitable both in high and low aromatic base fluid environments.
Fluid properties are not adversely affected by additions of OMNI-LUBE and the HTHP fluid loss in
emulsion systems treated with OMNI-LUBE will generally be lowered. General engineering practices
with respect to pilot testing additions are recommended.
Table 5-19
Appearance
Typical Physical Properties – OMNI-LUBE
Yellow-brown liquid
Flash Point (ASTM D56) > 250º C (482º F)
Freezing Point - 33º C (- 27º F)
Density
970 – 990 kg/m 3 @ 20º C
OMNI-MIX
OMNI-MIX is an anionic emulsifier formulation used in synthetic- and oil-base fluid systems. It is
used as a supplemental emulsifier with OMNI-TEC and OMNI-MUL when additional fluid loss
control is required or when needed to control water breakout and water wet solids. OMNI-MIX
increases emulsion stability and significantly lowers the HTHP fluid loss of any hydrocarbon external
phase system. Synthetic-base drilling fluid systems usually require 0.5 to 1.5 gal/bbl (11.91 to 35.71
L/m 3 ) of OMNI-MIX, depending on density, total solids loading, and temperature design.
Table 5-20
Appearance
Flash Point
Typical Physical Properties – OMNI-MIX
Black viscous liquid
> 212° F (100° C) (PMCC)
Pour Point 16° F ( 9° C)
Density 8.0 lbm/gal (952 kg/m 3 )
Viscosity 800 to 1000 cp at 68° F (20° C)
Baker Hughes Drilling Fluids
Reference Manual
Revised 2006 5-39