M‐I PAC UL

Filtration control additive generating minimal rheology increases

M‐I PAC UL polyanionic cellulose is a low‐viscosity, tech‐grade fluid‐loss‐control polymer. It is designed for situations where filtration control is needed with only minimal increases in rheology. M‐I PAC UL polymer will perform well in all brine applications, especially saltwater‐base fluids. M‐I PAC UL polymer may be used at all densities in either dispersed or non‐dispersed systems. M‐I PAC UL polymer will encapsulate solids to control dispersion of active shale.

M‐I PAC UL polymer controls fluid loss in freshwater, seawater, KCl and salt water. M‐I PAC UL additive aids in the formation of a tough, thin filtercake to minimize the potential for differential sticking. M‐I PAC UL polymer is effective in areas where the generation of viscosity build‐up should be avoided, but filtration control is required.

M‐I PAC UL polymer will create an envelope around exposed shales and cuttings for encapsulation that reduces dispersion and improves wellbore integrity. Encapsulation protects the shale from exposure to water that tends to destabilize the shale.

Advantages

• Effective in controlling filtration with minimal increase in rheology
• Functions at all pH ranges
• Environmentally acceptable
• Resists bacterial attack, requiring no biocides or preservatives
• Performs in a wide variety of waters