It is a new tool that models production from wells with varying completions, such as vertical, deviated, horizontal with or without hydraulic fractures.

The program utilizes a windows interface to input the data. It uses a reservoir simulator (IMEX) from CMG as its engine to numerically model fluid flow in the reservoir.

Optimising well performance is a vital task, yet existing analytical tools often make gross simplifications in geology or fracture shape, resulting in predictions that can be unreliable and misleading.  WellWhiz can reliably answer a wide range of key questions such as what type of well to drill? Should one consider a vertical well, perhaps with a fracture, or a horizontal well maybe with several fractures?  How much improved production will various well completions yield?  What about water influx in a naturally fractured reservoir?

WellWhiz uses a numerical simulator to model multi-phase flow in the reservoir and around the well, including in hydraulic fractures, to give an accurate prediction of well production rate and pressure response.  Crucially, WellWhiz can model non-Darcy flow in fractures and the reservoir, using proprietary laboratory-measured ß-factors.

Non-Darcy flow can be an important flow mechanism in fractures in a gas well producing at 20 MMscf/D from a 100ft fracture height, for example, non-Darcy flow effects in the fracture will result in a reduction in fracture conductivity of up to 90% leading to dramatic over-estimation of well production potential, as shown in the figure overpage.