pac (polyanionic cellulose) – shanghai trustin chemical co for sale

pac (polyanionic cellulose) – shanghai trustin chemical co for sale
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  • What is polyanionic cellulose?
  • Polyanionic cellulose (PAC), a common drilling fluid additives, which has similar molecular structure as carboxymethyl cellulose (CMC) but superior to CMC in filtration reduction, anti-salt, anti-collapse and high temperature resistance.
  • Does polyanionic cellulose reduce filtration loss in Pac drilling fluid?
  • Previously, the filter cake of a PAC drilling fluid system was observed by scanning electron microscopy to obtain the filter cake structure , and the addition of polyanionic cellulose afterwards significantly improved the rheological properties and reduced the filtration loss of the base fluid.
  • Are polyanionic cellulose and hydration products important in cement contamination?
  • Multiple cementing practices of Sichuan and Chongqing have proved that polyanionic cellulose (PAC) and hydration products of clinker were important factors in cement contamination.
  • Can polyanionic cellulose be used as a drilling fluid additive?
  • At the same time, polyanionic cellulose has excellent thermal stability and salt resistance, strong antibacterial properties , and is used more often in high temperature deep wells. Since the 1990s, many experts and scholars have conducted research on the use of polyanionic cellulose as a drilling fluid additive.