oil drilling chemical polyacrylamide phpa for bentonite mud

oil drilling chemical polyacrylamide phpa for bentonite mud
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  • Can PHPA be used as a bentonite additive?
  • 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) polymers are used as additives to bentonite water based fluids to stabilize shales and in HTHP applications because of better thermal stability (PHPA). It also acts as coating on cuttings preventing agglomeration minimizing fluid loss and aiding cuttings transport.
  • 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 ].