FLO‐VIS PLUS

Primary viscosifier for FLOPRO RDF systems

FLO‐VIS PLUS high yield, premium‐grade, clarified xanthan gum is the primary viscosifier for FLOPRO NT, and FLOPRO SF reservoir drill‐in fluid (RDF) systems. It produces elevated low‐shear‐rate viscosity (LSRV) and high, but fragile, gel strengths. These properties provide superior hole cleaning and suspension, improved hydraulics, reduced torque and drag, and assist in minimizing filtrate invasion. All contribute to improved drilling performance, reduced formation damage and lower overall well costs.

Applications

FLO‐VIS PLUS rheology modifier is the key component of the FLOPRO NT reservoir drill‐in fluid system. This readily dispersible, premium‐grade, clarified xanthan gum provides the unique rheology profile important to the performance of the FLOPRO NT and FLOPRO SF systems. FLO‐VIS PLUS viscosifier is specially selected for M‐I SWACO based on proprietary specifications for increased viscosity at ultra‐low shear rates. It yields higher low‐shear‐rate viscosity than other polymers.

FLO‐VIS PLUS additive is more thermally stable than other biopolymer viscosifiers; however, salt and/or thermal extenders can improve performance at temperatures above 250°F (121°C). With a thermal extender, FLO‐VIS PLUS viscosifier may be used effectively in wells with bottom‐hole temperatures to slightly greater than 330°F (166°C).

Advantages

• Yields significantly higher LSRV than other polymers, providing superior cuttings transport and suspension
• Compatible with strong cationic hydration suppressants such as KLA‐GARD additive
• Provides superior viscosity in salt waters, including KCl, field brines, seawater and workover/completion fluids, as well as fresh water. Special mixing procedures also allow FLO‐VIS PLUS viscosifier to be used in CaCl2 and formate salt systems.
• Provides lower high‐shear‐rate viscosity than other viscosifiers while lowering standpipe pressures and minimizes pressure loss, ECDs and surge/swab pressures
• Aids filtration control by slowing the rate of filtration invasion into the formation Minimizes formation damage in the production zone by leaving virtually no residue after treatment with an appropriate breaker since the polymer is clarified
• Environmentally acceptable product with lower toxicity at the recommended concentration