which is the best china drilling lubricant agent polyacrylamide/pam

which is the best china drilling lubricant agent polyacrylamide/pam
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  • Is polyacrylamide a good drilling fluid?
  • Considerable differences have been observed in the performance of the drilling fluids used in this study. In the case of polyacrylamide (PAM) as drilling fluid, bit wearing is maximum when compared with the other two additives. On the other hand, due to the minimum bit wearing with CMC, the best drilling performance is recorded as shown in Fig. 3.
  • What is modified polyacrylamide drilling fluid?
  • Indeed, modified polyacrylamide drilling fluid has been proven to be of great interest for use in the construction of bored piles and diaphragm walls in recent years. 1. Introduction Drilling fluid is a critical component in exploration and excavation, classified into water-based, oil-based, synthetic-based, and gas-based.
  • What is the pH range of modified polyacrylamide drilling fluid?
  • Besides, Shettigar et al. (2018) also developed a modified grafted polyacrylamide by maintaining the pH value of 9 by using sodium hydroxide. In short, the modified polyacrylamide drilling fluid must be maintained at a pH range of 7–10 to avoid an acidic environment that is harmful to the environment and society.
  • Are polymeric drilling fluid additives lubricant?
  • The aqueous solutions of the polymeric drilling fluid additives, used in this study, are highly viscous and also act as lubricant. During drilling process, the flushing fluid generates mechanical shear force exerted by the torsional force in the annular space due to the rotation of down-the-hole assembly (i.e. drill rod, hammer, and bit).