Key Technical Features of PanMesh™ Software

The PanMesh software graphical interface has been designed to make setting up the model a simple task, and the whole simulation process, from start to finish, retains many of the benefits of analytical methods in terms of workflow and speed.

• Single Well Finite Element Simulator
• 3-dimensional
  • Fast automatic meshing with local refinement around wellbore, economical meshing algorithm aims to provide an accurate solution that will incur a minimum simulation time
  • PanMesh software uses a patented complex 3-D mapped mesh generation technology, using a 20-node brick format with quadratic interpolation
  • Fast solver provides solutions in seconds to minutes, depending on model complexity
  • Generates real-time and pressure response for any well test flow schedule
  • Pressure response at any selected point in the reservoir can also be generated
  • ‘Pressure at a point’ capability allows horizontal and vertical interference tests to be modeled
  • Can be used to history match an existing well test or to design a future test
  • History file stores the entire simulation (pressure vs. time at all nodes) for future replay
  • Batch mode for multiple runs and sensitivity studies
• Reservoir Complexity
  • Geometry
    • Can be drawn over a reservoir map outline if available
    • Template option for preset reservoir forms
  • 3-dimensional permeability
  • Multiple layers (with/without vertical communication), multiple regions within each layer
  • Independently dipping layers, varying layer thicknesses via tilted surfaces or stepped sub-layers
  • Different rock and fluid properties per region
  • Irregularly-shaped internal fault structures
  • Partially sealing faults/fissures
  • Irregularly shaped outer boundary
  • 3-D graphical display of the reservoir structure
  • No-flow and constant pressure upper/lower and outer boundaries
  • Multiphase flow using multiphase pseudo-pressure, and/or different fluid properties per region with static interfaces
• Well and Completion
  • Vertical, slant, or horizontal well, with defined azimuth
  • Up to six open intervals
• Visualization
  • Color contouring allows advance of pressure disturbance to be tracked with time through the reservoir, on any selected plane
  • Simultaneous display of pressure derivative shows correlation between derivative ‘events’ and reservoir features encountered by the leading edge of the color contours
  • Radius of investigation iso-pressure surface display
  • ‘Save views’ option stores selected visualization
  • Flow plane feature shows orientation and relative magnitude of flow on any plane, while stream tube option displays flow path into the well from any selected point
  • Percentage flowrates per open interval (for a nominal constant total rate)
  • Pore volume per layer, total bulk reservoir volume