Oil drilling grade xanthan gum is an efficient, high-quality and environmentally friendly drilling fluid viscosity and shearing agent. This product has good effects on improving the suspension ability of drilling fluid, shear dilution ability and reducing reservoir damage. It also has good resistance to temperature, salt, calcium and acid and alkali. It is suitable for fresh water, sea water, saturated salt water drilling fluid system is also an ideal additive for completion fluids, workover fluids and fracturing fluids.
Xanthan gum is the biological gum with superior properties in the international arena, which com- bines thickening, suspension, emulsification and stabilization. The number of pyruvate groups contained at the end of the molecular side chain of xanthan gum has a great influence on its performance. It has the general properties of long-chain polymers, but it contains more functional groups than gener- al polymers, which will show unique properties under specific conditions. Its conformation in aqueous solutionis diverse, and it exhibits different properties under different conditions.
Good water solubility
It can be quickly dissolved in water and has good water solubility. Especially it can also be dissolved in cold water, which can save the complicated processing process and is easy to use. However, because it is extremely hydrophilic, if it is added directly to water without sufficient stirring, the outer layer will absorb water and swell into micelles, which will prevent water from entering the inner layer and affect the performance of the function. Therefore, care must be taken to use it correctly.
Thickening
The solution has the characteristics of low concentration and high viscosity (the viscosity of 1% aqueous solution is equivalent to 100 times that of gelatin), and is an efficient thickener.
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