high quality polyamine shale inhibitor phpa for drilling mud

high quality polyamine shale inhibitor phpa for drilling mud
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  • Can polyamine be used as a shale inhibitor?
  • The case-specific study on the oilfields of Chain, which were famous for their highly dispersive and reactive shale, showed great instability due to micro-fracturing. The high-performance water-based drilling fluid system (HPWDF) carrying polyamine as a shale inhibitor shows non-dispersion, better inhibition, anti-accretion, and lubricity.
  • What is hydrophobic cationic polyamine shale inhibitor (HCPA)?
  • Wellbore instability in complex shale formations is a major technical problem that threatens drilling safety and efficiency. In this paper, a hydrophobic cationic polyamine shale inhibitor (HCPA) was prepared by introducing a hydrophobic group in the molecular structure of an amine-based shale inhibitor having a branched structure.
  • Are quaternary polymer inhibitors suitable for deep shale gas drilling?
  • Polymer inhibitors for deep shale gas drilling have poor temperature resistance and can influence the rheological attributes of the drilling muds. To overcome this issue, a high temperature resistant and low molecular weight quaternary polymer DVAA was prepared by hydrothermal radical polymerization.
  • Does hydrophobic polyamine shale inhibition improve branched cationic polyamine inhibition performance?
  • Conclusions In this study, a hydrophobic polyamine shale inhibitor was prepared by introducing a hydrophobic group into the molecular structure of a branched cationic polyamine. After introducing the hydrophobic functional group, the shale inhibition performance was significantly improved.