Review Article

Challenges and Prospects of Digital Core-Reconstruction Research

Table 1

Instrument parameters and applications for 3D digital core reconstruction.

Instrument typeSample sizeInstrument resolutionMain application areas

Micro CTCore column scanning
(diameter 15-25 mm)
12-30 μmGeological description, heterogeneity analysis
Core column scanning
(diameter 1-25 mm)
0.5-12 μmFine description, pore network generation
Nano-CTLess than 1 mm65-150 nmFor the scanning of complex structural samples such as shale, microcrystal, tight gas rock, and analysis of pore network
FIB-SEMLess than 1 mm2-150 nm