SAFE-VIS HDE

HEC polymer viscosifier for high-density brines

SAFE-VIS HDE liquid viscosifier is a suspension of a high-quality hydroxyethylcellulose (HEC) polymer in a synthetic carrier. It is specially formulated for high-density brines. HEC is a modified, high-molecular-weight, nonionic natural polymer specially suited for  increasing the viscosity of brines.

SAFE-VIS HDE viscosifier is designed to viscosify all higher-density CaCl₂, CaCl₂/CaBr₂, CaBr₂, CaBr₂/ZnBr₂, CaCl₂/CaBr₂/ZnBr₂, brines, as well as most other divalent brines. It can also be used to provide viscosity for pills or spacers, fluid loss control, hole cleaning while washing, milling, or reaming, gravel-pack fluids, and nondamaging reservoir drill-in fluids.

The easily-breakable and nonfermenting polymer increases viscosity and carrying capacity of workover and completion fluids and heavy brines. It is not adversely affected by polar compounds or divalent cations such as calcium and magnesium or cement. The low-toxicity synthetic carrier assists in dispersion and helps prevent lumps or “fish eyes” so that the polymer rapidly and smoothly viscosifies without the need for high shear.