Product Description

OptiLig™ filtration control agent is an amine-treated lignite used to reduce HPHT filtrate in a wide variety of synthetic-, diesel-and mineral oil-based drilling fluids.

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OptiLig additive provides superior HPHT filtrate control in all invert emulsion drilling fluid systems.


OptiLig fluid loss control agent is used in Newpark’s synthetic-based CyberDrill® system and in the diesel- and mineral oil-based OptiDrill™ and OptiPhase™ systems. It is effective in applications to 300°F (149°C).

Treatment Recommendation

OptiLig concentration should be maintained in a range of 1-12 lb/bbl to achieve desired filtration control.

Typical Physical Properties

AppearanceGray to black powder
Specific Gravity1.8

Handling and Storage

This product may contain crystalline silica. Avoid breathing dust. Use only with adequate ventilation to keep exposure below recommended exposure limits. Wear a NIOSH approved respirator or equivalent when using this product. Use good housekeeping in storage and work areas to prevent accumulation of dust. Close container when not in use. Do not reuse empty container. Avoid moisture. Use appropriate hygiene, clothing and personal protective equipment suitable for work being done. Review the SDS thoroughly before using this product.


OptiLig filtration control agent is available in 50-pound (22.7-kilogram) multi-walled bags.

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