SAFE-VIS Additives | Schlumberger

SAFE-VIS

Polymer fluid loss control additives

Minimize formation damage while optimizing rheology

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.

Fluid loss control additive
Displacement
Enhance efficiency by increasing viscosity in a managed rheology train.
Completions
Improve gravel suspension and transport for gravel-packing operations.
Workover
Use a viscous pill to help capture and transport solids from the well.
Lab worker testing fluid loss control additive

Choose the formulation that suits your well or fluid

The additive family includes several variations formulated in special carriers to meet individual well requirements and local environmental regulations.

  • SAFE-VIS OGS oil- and grease-standards liquid polymer fluid loss control additive is formulated in a water-dispersible synthetic carrier to pass oil and grease, LC50, and static sheen tests required for use in the Gulf of Mexico. It is designed for single-salt calcium chloride (CaCl2) and calcium bromide (CaBr2) brines and all monovalent halide brines.
  • SAFE-VIS E liquid polymer fluid loss control additive is formulated in a purified mineral oil carrier and designed to viscosity single-salt calcium chloride (CaCl2) brines and all monovalent halide brines.
  • SAFE-VIS HDE high-density-brine liquid polymer fluid loss control additive is formulated in a water-soluble carrier for use in nearly all high-density divalent brines.

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