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Network Extraction algorithms from X-ray microcomputed tomography have becomea routine method to obtain pore connectivity and pore morphology informationfrom porous media. The main approaches for this extraction are either based onMax Ball Algorithm or Medial Axis Extraction. The first is a robust method toseparate the pore space into pore and throats, which provides the pore andthroat sizes distributions directly. The second simplifies the medium bythinning the volume into a one voxel wide centerline that preserves thevolume's topological information. Since each method has drastically differentimplementations, it is not usual to use both to characterize the porousstructure. This work presents a method to extract a simplified centerline ofporous materials by adding few more steps to the well-established Max Ballalgorithm. Results for sandstones and carbonate rock samples show that thisMedial-Axis network can be used for single phase flow simulations, as well aspreserves the mediums morphology.

Pore Network and Medial Axis simultaneous extraction through Maximal Ball Algorithm