Drilling fluids, completion fluids; water based muds; non water based muds; paraffin based muds; synthetic based muds; paraffin based fluids; olephin based fluids; deepwater drilling fluids; underbalanced drilling fluids; brines; workover fluids; drilling fluids; lost circulation materials; stuck pipe additives; drilling muds; completion muds; oil based muds; ester based muds; olephin based muds; base oils; ester based fluids; synthetic base fluids; vegetable base fluids; slim hole drilling fluids; air and foam drilling fluids; completion brines; penetration enhancers; viscosifiers; de-emulsifiers; H2s scavengers (hydrogen sulphide scavenger); fluid loss reducers; emulsifiers; corrosion inhibiters; ph control agents; additives for use with drilling fluids; drilling mud composition; chemical preparations, products, substances and compositions, all for use in oil fields, gas fields, oil production or gas production; chemical preparations, products, substances and compositions, all for use in drilling, completion and workover of oil and gas wells; chemical substances, preparations and compositions, all for use in drilling; additives for use in drilling, completion and workover of oil and gas wells; chemical products for use in treating, testing and compounding oil well drilling fluids and like mixtures; chemical substances for industrial use in drilling operations as additives of mud; surfactants; blends of surfactants; viscosity and filtration control agent for use in oil and gas well drilling; chemical preparations for use in the removal of dirt, lime, scum, scale, mortar, oil, grease, wax, ink, carbon, mildew, mould, grime and stains