Drilling starch is a polymer derived from the unmodified starch including amylopectin content. This starch has fermentation stability and it gives enhanced high temperature fluid loss performance when working in combination with drilling fluids. It has optimal use in all water-based drilling, stimulation, and completion fluids. Usage: -Apt for drilling, work over or completion of fluid leakage - Control additive appropriate for utilization at high temperatures - Keep up liquid loss control at up to 300F (150C), helps in stabilising rheology - Does not ferment Treatment rate, Typical, 1-4 ppb, as essential to control liquid loss. - Higher temperatures (above 150C) may be necessary to activate HT Starch to supply effective rheology and fluid loss control totally as a binding agent. Parameters: -Suspension Properties: -Viscometer dial reading at 600 r/min: -In 40 g/lit salt water, after 16 hrs hot rolling at 250F -Max 18 Cps -In saturated salt water, after 16 hrs hot rolling at 250F- Max 20 Cps -Filtrate Volume: -In 40 g/lit salt water, millimetres, 16 hrs hot rolling at 250F- Max 10 ml -In saturated salt water, millimetres, 16 hrs hot rolling at 250F- Max 10 ml -Residue greater than 2000m -No Residue -Solubility in 15% HCL- Min 99.5% -Moisture- Max 13.0% -Fermentation test- Min 3 days
