UBDPRO iconUBDPRO - underbalanced drilling hydraulics

Underbalanced drilling is often performed with the primary motivation of reducing formation damage and increasing production, and air / mist / foam drilling fluids are commonly employed. Computer modeling has allowed far better understanding of the managed pressure drilling than was previously possible.

  • Compressible fluid hydraulics for vertical or directional wells
  • Survey input allows 1000 survey stations
  • Pore and fracture profiles
  • Temperature gradients
  • 20 wellbore intervals and 50 pipe sections
  • Jet sub calculations
  • Motor pressure drop
  • Formation influxes
  • Bingham plastic, power law, Chevron's model, Reidenbach and Harris model
  • Aerated mud: Beggs-Brill method
  • Pressure, ECD, gas volume, density, velocity and cutting transport profiles
  • Optimized flow rate design
  • MS Word report
  • US oil field, SI and customized units