Fluid travels through voids in rock, such as pore spaces, mineral defects, micro-fractures or fractures.

The structure of the voids influence the way fluid moves through the bore-field. Investigating host rock structure and void connectivity can illustrate fracture versus matrix permeability. This can show the pathway for fluid movement at the microscopic level.

Common reservoir topics investigated:

• Are voids interconnected or isolated?
• Are all areas of one lithologic unit across a geothermal field behaving in the same way?
• Are there lateral and/or vertical variations within one stratigraphic unit?
• Which rock units are fracture controlled and which are matrix controlled?