Lubricant additives improve drilling mud lubricating properties. Under their influence, on the friction surfaces the protective layers resistant to temperature and pressure changes are formed. Application of lubricant additives provides the following advantages:
20-40% drilling progress increase per bit
15-25% sticking and stuck freeing time reduction
Improve of protective properties of some colloids
Reduced deterioration of equipment, increase in its lifetime
Mitigating drilling string sticking risk
The operating principle of lubricant additives consists in hydrophobization of friction surfaces and inhibition of corrosion processes. This leads to formation of lubricating film, thereby the friction surface is under less specific loads, and microroughness is eliminated. Mineralization can cause deterioration of the lubricating properties, therefore right drilling mud lubricant additive helps to avoid this.