UNIPAC SUPREME UL

High-quality fluid-loss control, shale stabilization agent

UNIPAC SUPREME UL modified polyanionic cellulose is a high‐quality, water‐soluble polymer designed to control fluid loss and to promote shale stabilization in water‐base muds. The mixing efficiency of the highly dispersible UNIPAC SUPREME UL additive reduces loss of active product. The purity and assured high quality of the additive requires less product concentration than PAC UL additives to obtain similar results.

UNIPAC SUPREME UL additive controls fluid loss in freshwater, seawater, and KCl muds. It forms a thin, resilient, low‐permeability filter cake that minimizes the potential for differential sticking and the invasion of filtrate and mud solids into permeable formations. The highly dispersible UNIPAC SUPREME UL polymer eliminates the formation of “fish eye” large gelled particles, even under the poorest mixing conditions. UNIPAC SUPREME UL additive is a low‐molecular‐weight polymer that generates less viscosity than UNIPAC SUPREME R additive. UNIPAC SUPREME UL fluid‐loss‐control additive resists bacterial attack and does not require a biocide or preservative.

UNIPAC SUPREME UL additive is an anionic polymer that attaches to and encapsulates exposed shales and drill cuttings, offering secondary shale stabilization properties. UNIPAC SUPREME UL additive is particularly useful in weighted mud systems. It exerts a dispersing action that helps control gel strengths and improves filter‐cake quality.

Advantages

• Effective in low concentrations for controlling fluid loss and building viscosity
• Produces minimal viscosity increase
• Highly dispersible, preventing formation of “fish eyes”
• Encapsulates shale particles to inhibit swelling and dispersion
• Resists bacterial attack; no biocide or preservative is necessary
• Applicable in all water‐base muds, ranging from low solids, non‐dispersed polymer systems to high‐density, dispersed systems
• Compatible with all common mud‐treating additives
• Excellent environmental acceptability