PanMesh™ - Numerical Well Test Analysis Software

PanMesh software makes numerical simulation accessible to the well test analyst without requiring simulation expertise. It can be used to simulate bottomhole flowing pressures for history matching to a well test data set, or to design a well test. It uses numerical simulation which envelopes all existing analytical solutions and has potentially unlimited flexibility including three-dimensional models. Almost any geometry can be represented, encompassing multiple layers, irregular boundaries and multiple completions.

Many analytical models have been developed, and are still being developed, to describe different well and reservoir configurations. However, approximations or simplifying assumptions have to be made in order to make the mathematics manageable, and there is a limit to the complexity that can be achieved analytically.

PanMesh software uses numerical simulation which envelopes all existing analytical solutions and has potentially unlimited flexibility. The reservoir and completion are discretised into a number of blocks or elements, and the flow and pressure equations are solved across each of these. Almost any geometry can be represented, encompassing multiple layers, irregular boundaries, multiple completions, and so on. Numerical simulation provides the opportunity to model real completions and complex geology in three dimensions.

Its revolutionary patented mesh generation technology has encapsulated all the power of full 3-D numerical simulation in an easy to use software tool. PanMesh software makes numerical simulation accessible to the well test analyst without requiring simulation expertise.

The use of a numerical simulator enables the well test analyst to reach beyond the capabilities of analytical simulation in terms of complexity of reservoir structure and completion design.

PanMesh software’s color visualization facility tracks the pressure as it propagates through the reservoir, enabling the analyst to see how changes in the model structure correlate with changes in the pressure derivative.

The Challenge for Well Testing

• Geological models are getting more detailed and need to be validated
• Wells are becoming more complex
• Staff have little time in which to assimilate all the information available
• Conventional well test analysis is nearing its limits…

...whilst there are less people able to concentrate effort on understanding it.

The Solution is PanMesh software

• Integrates the different disciplines:
  • complex geological models
  • real life well completions
• Enables teams to really understand how a well test is behaving - without being specialists
• Low Costs:
  • As quick as the conventional approach
  • Integrated with PanSystem^® software - easy to use