phpa/polyacrylamide/stabilizer/drilling fluids/drilling muds

phpa/polyacrylamide/stabilizer/drilling fluids/drilling muds
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  • 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.
  • Do modified CMC and PHPA polymer drilling fluids affect rheological properties?
  • Kuma et al. investigated modified CMC and PHPA polymer drilling fluids with NaCl and KCl and haematite mineral where KCl and NaCl acted as great swelling inhibitors for drilling muds, while haematite just slightly increased the rheological properties on CMC–bentonite mud and did not have much effect on the PHPA–bentonite mud [ 26 ].
  • 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 polymer muds a good replacement for drilling fluids?
  • Caenn and Chillingar (1996) reviewed the state-of-the-art for drilling fluids in the mid-1990′s – while not including pure polymer-based fluids (i.e. without clay present), they noted a number of “polymer muds or salt/polymer muds” beginning to appear as possible replacements, e.g. polyanionic cellulose.