Super Concentrated High Temperature Amylase Breaker for Starch-Xanthan filter-cakes in Oilfield boreholes. PETROLIZE™ HTA + is an advanced version of the Petrolize HTA enzyme. It is a Concentrated High Temperature Stable Bacterial Alpha Amylase, suitable to hydrolyze a Starch-Xanthan filter-cake formed as a deposit by a typical Reservoir Drill-in fluid. This microbial enzyme protein will work between borehole temperatures of 60 to 130 Deg C and pH range of 5 to 9. It is compatible with Calcium Chloride brines up to 1.34 SG.