Linking pore topography and topology using nanoscale 3D FIB-SEM and FIB-HIM imaging

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In this webinar we will overview all the methodological requirements which lie behind producing high fidelity nano-scale images, before looking at how these techniques can be used to understand the differences between organic hosted pore structures seen in onshore economic US shale reservoirs and those seen in more conventional pore structures.

When: September 6th, 2017, 9:00 AM – 10:00 AM PST

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Imaged connectivity of organic hosted pore network from Shale FIB-SEM dataset (resolution of 2.5nm x 2.5nm x 5nm). The largest connected cluster is shown in red, and all porosity shown in green, showing poor connectivity in organic hosted pores.
The last five years has seen a revolution in the nature and genesis of the petroleum systems driving the worldwide hydrocarbon market, increasing emphasis on unconventional resources, particularly artificially stimulated shale reservoirs. In a low hydrocarbon price environment, technology must be made more efficient and reservoir management more targeted for such petroleum systems to remain competitive relative to mature conventional resources. One such technology is the ability to characterize shale pore and mineral structures using high resolution 3D Focused Ion Beam – Scanning Electron Microscopy (FIB-SEM).
Connectivity of simulated intergranular and organic hosted (authigenic) pore spaces. The largest connected cluster is shown in red, and all porosity shown in green, and total aggregate porosity shown below and right of each image. Connectivity occurs in the intergranular pore-space between 5% and 10% aggregate porosity, whereas in the authigenic pore space, connectivity (within the simulated organic hosted pore space) is only achieved at 35-45% hosted porosity.
Regional segmentation of shale structures, showing organic regions and associated porosity (red), mineral phases (green), fractures (blue) and pyrite (yellow). Horizontal size = 100um.

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