ErDouSi Tight Oil


High resolution microscopic imaging is a tool for unconventional resource prospecting, exploration and production, due to the nano-scale hydrocarbon storage units and their complexity. However, balancing the appropriate high resolution detail with a representative, large-enough field of view has always been a challenge. Focusing on Chang-7 member of Ordos basin, Northwest China, we use both FIB-SEM and a 2D large field of view SEM imaging as inputs to our multi-scale numerical modeling framework. The predicted 3D rock physical properties from FIB-SEM at nanometer pore-scale are integrated with laboratory measurement data on mineralogy and geochemistry to enable direct numerical simulation of petrophysical properties on 2D SEM images. The corresponding properties at larger and facies-representative scale are computed with nano-scale properties factored in. The systematic upscaling approach allows us to investigate the high potential shale oil play in the prospected area in an unprecedented timely and economic manner.

For more information, request a copy of the JNN 2016 paper.

PetroChina

FIB-SEM Images from Three Organic Hosting Minerals

Corresponding to Figure 4(d) from JNN Paper (a) H1; (b) H2; (c) H3.
From left to right: 2D SEM, 3D FIB-SEM volume, 3D non-mineral volume.


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