While a flow can shrink in the vertical dimension without fracturing, it cannot easily accommodate shrinking in the horizontal direction unless cracks form; the extensive fracture network that develops results in the formation of columns.

Geomechanical analysis, such as understanding the material properties, in-situ conditions and geometries involved will help with this by providing a better definition of the environment in which the hydraulic fracture network propagates.

Plumose Structures are fracture networks that form at a range of scales, and spread outward from a joint origin.

By predicting the location and connectivity of fracture networks, geologists were able to plan horizontal wellbores to intersect as many fracture networks as possible.

Flow occurs from the tight matrix blocks to the more permeable fracture networks that surround the blocks, and to the wells.

The extensive fracture network produced the distinctive columns seen today.

Shear wave splitting measurements have been used to successfully predict earthquakes, and to map fracture networks created by high pressure fracturing of reservoirs.

To date, this is the best method to gain in situ information about the fracture network present in a hydrocarbon reservoir.

The working group 'Fracture', led and coordinated by Camerino University, has examined the fracture network of the Majella anticline on various scales using different acquisition and analysis techniques.

The pain stacking analysis of all these data resulted in a number of major constraints on the relation between fracture network and anticline structure and evolution, and fault zones and mechanical Stratigraphy.