Scanning Electron Microscopy (SEM) and Energy Dispersive Spectrometry (EDS)
- SEM service, using the Amray 1820 I/D, is available to provide topographic
details of rocks at a microscopic level.
- Information derived, such as mineralogy, grain size, pore
size, clay content and distribution provide the user with information relating
to the interaction of rock components and fluids.
- This technique provides a means of high resolution imaging of pore lining clays.
- Rapid identification of fine particulates, such as produced fines and
scale samples, is particularly useful.
- Standard output for the SEM is in the form of digital images burned to a CD-ROM.
- The EDS system provides elemental spectra of bulk samples, or small particles.
- Qualitative evaluation of mineral distribution.
- Identify non-end-member elements in minerals such as iron-dolomites or iron-calcites
Backscatter Scanning Electron Microscopy
- Original image captured as a greyscale image.
- False color image useful for identifying porous grain boundaries.
- Binary image derived from greyscale image.
- Porosity derived from black-level = 5.9%
- Porosity determination from cuttings.