Chelant-based filtercake breaker system
Delay invert-emulsion filtercake destruction by up to 72 hours for efficient placement during the completion.
The SAFE-VIS polymer fluid loss control additive family comprises high-molecular-weight hydroxyethyl cellulose (HEC) polymers and suspensions designed for use as viscosifiers in freshwater, seawater, or halide brines during displacement, completion, and workover operations.
All liquid SAFE-VIS additives are designed with a coating that retards hydration until the programmed time, temperature, or pH is met. This controls hydration for better uniformity and effectiveness.
The additive family includes several variations formulated in special carriers to meet individual well requirements and local environmental regulations.