polyacrylamide/apam/phpa used for oil drilling mud/water in britain

polyacrylamide/apam/phpa used for oil drilling mud/water in britain
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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.
  • 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.
  • What is a PHPA mud system?
  • The PHPA mud system stabilizes shale formations and influences cuttings and wellbore stability. PHPA can be used in mud systems varying from low solids to weighted muds systems utilizing fresh or saltwater. PHPA is a white granular powder, anionic in nature having a specific gravity of 1.25 to 1.40 and a bulk density of 40 to 46 lb/ft 3.
  • 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 ].