Alkalinity Control Cementing Additives Calcium Bromide Corrossion Inhibitors Defoamers and Demulsifier Emulsifiers and Wetting Agengts Filtration Reducers Flocculants Lost Circulation Materials Lubricants Pipe Freeing Agents Scavengers Shale Inhibitor Temperature Stabilizers Thinners and Dispersants Viscosifiers Weighting Agents Workover and Completion Fluids Zinc Bromide Xanthan Gum Premier Resignated Lignite