Hydraulic UnderBalanced Simulator (HUBS)

Successful UnderBalanced Operations (UBO) and Managed Pressure Drilling (MPD) requires an optimum circulation rate and sufficient hole cleaning capacity to maintain underbalance with minimum power and equipment. HUBS™ eliminates the shortcomings of other multiphase hydraulic simulators - predicting adequate hole cleaning and maximizing penetration rate while maintaining underbalance.
Using a new approach to cuttings carrying capability that replaces dependence on inadequate theories, HUBS™ accounts for cuttings accumulation.
HUBS™ accounts for a variety of dynamic situations that frequently accompany UBO and MPD, including:
- Formation influx and lost circulation
- Phase change and gas solubility
- Parasite strings and concentric casing injection
- Reverse circulation during UBO
To improve user productivity, HUBS™ includes:
- MS Office™ compatability
- Only one wellbore description entry required
- Up to six coexisting fluid phases
- Offshore rig capability (accounts for air gap and negative temperature gradient in riser)
- Multiple fluid rheology models
- A newly developed 2-Phase flow jet sub model
- Productivity Index calculation
- Lookup tables for tubulars and fluids
- Customized units option
- Flow rate design and selection
- Pressure matching feature
Comparison to field data revealed agreement withing 5% between HUBS™ calculations and actual measurements.
To try out the software or to receive more information, complete
our "Software Try-Out Form" to see if
you qualify, or contact the
.
Download HUBS™ brochure in (pdf format).




