DESCRIPTION
Penetrol Xtra is vegetable based soluble oil that has been developed as a surface-acting rate-of-penetration (ROP) enhancer
and it is designed for use in water-based drilling fluid systems. Its extreme pressure lubrication properties were designed
for the operating parameters at the face of an impregnated diamond bit, giving improved penetration rates and extended bit
life.
A fluid system containing Penetrol Xtra promotes hydrophobic coating on both the bit and cuttings surfaces. This allows
shale cuttings to slip past the bit before sticking together, improving the bit’s cutting efficiency and increasing
penetration rates.
APPLICATIONS/FUNCTIONS
Penetrol Xtra lubricates by producing a soft, tenacious film layer of micro grease on the drill string and the borehole.
The concentrated wetting agents in the product enhance the cooling and wetting of the impregnated particles and accelerate
removal of cuttings improving penetration rates and extending bit life. Penetrol Xtra forms white oil in water emulsion with
some foaming, and has proven to work effectively in a variety of water conditions including fresh to super saline water and
in variable alkalinity condition from basic to acidic.
ADVANTAGES
- Cost effective - low concentrations required to extend bit life and to improve penetration rates and lubricity.
- BHA coating to reduce torque and drag, require fewer trips, excellent PDC bit performance in water-base fluids.
- Penetrol Xtra reduces torque and drag problems in high-angle wells by preferentially coating metal tubular to resist sticking and improve lubricity.
- Penetrol Xtra deposits a soft grease on the string that reduces wear on the drill string.
- Environmentally safe - vegetable oil based with biodegradable emulsifiers.
TYPICAL PROPERTIES
- Appearance: Opaque honey coloured liquid
- pH (10 % Solution): 7.0 – 8.0
RECOMMENDED TREATMENT
An initial treatment of 1 – 2 % by volume should be made by injection to the circulating system. Additional material can be added up to 4 – 5 % by volume depending on the ROP achieved, amount of shale encountered, type of mud system and the interval length.
It mixes very easily to form a white foaming emulsion.
