phpa polyacrylamide for oil drilling fluids and piling fluids

phpa polyacrylamide for oil drilling fluids and piling fluids
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  • Is PHPA a water soluble polymer?
  • Description: PHPA is a co-polymer of anionic character and high molecular weight. It is a water-soluble polymer, which is primarily used as a highly efficient fluid loss reducer, Viscosifier and protective colloid for shale’s and cutting in fresh water, calcium, sodium brines and KCL mud systems.
  • What is PHPA used for in oil & gas industry?
  • Fig. 1. Chemical structure of PHPA In the oil and gas industry, PHPAs have a long history of use as bentonite additives to inhibit the swelling of water-sensitive shales and to reduce fluid loss in permeable formations (Liao and Siems 1990; Kadaster et al. 1992; Kelessidis et al. 2013).
  • What is partially hydrolyzed polyacrylamide (PHPA)?
  • Partially hydrolyzed polyacrylamide (PHPA), consisting of neutral acrylamide and anionic acrylate groups, is suitable for use in water with <25,000 mg/L TDS 12, 15.
  • Can hydrophobically modified polyacrylamide gel be used in high temperature drilling?
  • Enhanced hydrophobically modified polyacrylamide gel for lost circulation treatment in high temperature drilling J. Mol. Liq., 325 ( 2021), p. 115155, 10.1016/j.molliq.2025.115155 Rheological properties of bentonite-free water-based drilling fluids with novel polymer viscosifier J. Petrol. Sci.