working principle of nonionic polyacrylamide friction reducer

working principle of nonionic polyacrylamide friction reducer
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  • What is a friction reducer (polyacrylamide)?
  • Due to the large volumes of water used, a friction reducer (polyacrylamide) is added to the fluid package to reduce the pumping energy required for the operation. The presence of the friction-reducing polymer (polyacrylamide) can reduce the friction loss and required pressures by as much as 60%.
  • What is a friction reducing polymer?
  • Friction-reducing polymers are often a significant portion of the aqueous-based chemical stimulation package used. The primary product form used primarily in the hydraulic fraction is inverse emulsions . This is due to their liquid form which facilitates the ease of use.
  • What type of friction reducer is used in hydraulic fracturing?
  • In hydraulic fracturing fluids, high molecular weight (normally over 10 6 Da) polyacrylamide (PAM) (long chain polymer, linear structure) is the most commonly applied friction reducer with high water solubility and good thermal stability ( Xiong et al., 2018a; Yang et al., 2019 ).
  • Can polyacrylamide friction reducers be used in slickwater fracturing?
  • Carman, P. S., Cawiezel, K. E. & Co, B. J. S. Successful breaker optimization for polyacrylamide friction reducers used in slickwater fracturing. In SPE Hydraulic Fracturing Technology Conference. (Society of Petroleum Engineers, Richardson, TX, 2007).