Oilfield

Cementing

Wells are often expected to produce hydrocarbons for a long period of time, which is only achievable with proper cementations of the well casing.

Tylose® HEC adds important properties to the cement slurry. It minimizes fluid loss, enhances retardation of the slurry and modifies its rheology. Innovative Tylose HEC grades are suitable for use even in high temperature environments.

Drilling and completion

Tylose® HEC grades are used as viscosifiers in drilling fluids, particularly in heavy brines for completion and workover operations. Since Tylose HEC forms stable solutions with high salt concentrations, it is perfectly suitable for the viscosifying of these fluids. Use of Tylose HEC gives other benefits, such as higher drilling rates and increased oil production and it is easily degradable with chemical and enzyme based breakers.

Fracturing

Hydraulic fracturing enables production of natural gas from unconventional reservoirs but also enhances well productivity in conventional formations. High viscosity Tylose® grades can be cross-linked with various metal ions and are able to modify the rheology of fracturing fluids to transport proppants into the wellbore.

After fracturing is completed, Tylose can easily be removed by chemical or enzymatic degradation, leaving no pore-plugging residues.