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UBDPRO - Underbalanced Drilling Hydraulics Logo Small UBDPRO - Underbalanced Drilling Hydraulics Model

  • Overview
  • Features
  • Resources
  • Specification

Managed Pressure Drilling (MPD), including Underbalanced Drilling (UBD) technology, precisely controls the annular fluid pressure profile within a wellbore, which allows drilling of what might otherwise be economically unattainable prospects. Managed pressure drilling is often performed with the primary motivation of reducing formation damage. Therefore, increasing production and aerated fluid is commonly employed in the drilling process. In hard rock applications, managed pressure drilling is often performed with the primary motivation of increasing ROP (rate of penetration). Here air/mist drilling fluids are commonly employed.

UBDPRO models the complex hydraulics for compressible fluids including air, mist, foam and 2-phase fluids. The advanced software model can be used to optimize gas and liquid injection rates in order to control bottomhole pressure.

  • Vertical or directional well
  • Compressible fluid hydraulics
  • Up to 1,000 survey stations
  • Pore and fracture profiles
  • Temperature gradients
  • Jet sub calculation
  • Motor pressure drop
  • Foam model: Bingham plastic/Power law/Chevron's model/Reidenbach and Harris model
  • Aerated mud: Beggs-Brill method
  • Cutting transport profile
  • Optimized flow rate design
  • Handles formation influxes up to 6 depths
  • Pressure, ECD, gas volume, density, velocity and cutting transport profiles
  • RPM effect
  • Microsoft Word® report
  • US oil field, SI and customized units
  • Multi-language: English, Spanish, Chinese, Russian and Portuguese
  • Screenshots
  • Brochures
  • Bookstore
  • Underbalanced Operations | PVI Bookstore

    Underbalanced Operations - $70

    Patrick Brand, published by Drilbert Engineering, Inc., 2002

    This reprint, which focuses on the best-practices applications of the technology, includes such topics as introduction to underbalanced operations; case histories; underbalanced operations other than drilling; well design; equipment and health, safety, and environment; and fluids and modeling. Included is an overview of the candidate-selection process and the design criteria used for underbalanced drilling operations. Additional topics include other applications for this technology, successful design implementation, fluid optimization, and multiphase-flow modeling and simulation.

  • Operating Systems

    • Microsoft Windows® 7, Windows® 8/8.1, Windows® 10
  • Microsoft Office®

    • 2010 or later
  • Processor

    • Dual core processor, 1.4 GHz or faster
  • Memory

    • 4 GB RAM
  • Disk Space

    • 200 MB of free disk space for installation
  • Display

    • 1,280 x 768 display resolution
  • Installation Options

    • Setup file can be accessed from a download link or installation CD provided by PVI