QEMSCAN 10

QEMSCAN 10 is a good compromise of speed, coverage area, and resolved detail that is suitable for both mineralogical and textural studies.  As an alternative to optical petrography, QEMSCAN 10 is a standardised and reproducible process that can be applied uniformly to large sample sets in a timely manner at lower cost.

QEMSCAN 10 Key features
Scan area 10 x 10 mm
Scan resolution 10 μm
Mineralogy data points 1 million
Standard deliverables Modal mineralogy
Mineral maps and Porosity of rock
Minimum project size 6 samples
QEMSCAN Wellsite system by FEI

QEMSCAN Wellsite system by FEI

Applications

The QEMSCAN 10 service is ideal for mineralogy and textural studies of medium to coarse grained material. 10 μm is the preferred resolution for grain size and pore size studies as it resolves key features while also enabling the study of a large enough area to get solid statistics even in heterogeneous and poorly sorted material. 

The enhanced resolution of QEMSCAN 10 over QEMSCAN 50 enables the extraction of more precise textural information, like grain and pore size distribution. These are available as a series of service add-ons:

Service Description £/sample
Pore/grain size distribution Grain size histograms and data tables for mineral phases of interest or pore space. Grouped by depth, lithotype or individual cuttings. 20
Cuttings lithotyping Determination of up to 5 lithotypes per sample and reporting of agreed rock properties per lithotype. 20
Cuttings porosity QEMSCAN measured and calculated per sample, lithotype or individual cuttings, as agreed. 40
Individual cuttings reporting Quantification of agreed rock properties per individual cutting in a sample. 20
Heavy mineral grain counts Additional reporting of heavy mineral data in grain count rather than area percent format. May include digital grain size sieving. 20
Coal quantification Manual editing of low BSE phases (coal, organic material) that occur as large particles (not nanometer organic matter quantification). 20

Example project

A development team needs to understand the porosity and mineralogy in the reservoir unit of a given well because the flow rates do not match log readings and previous core studies from an adjacent well. There is no core from this well, so we design a QEMSCAN project using cuttings. We agree to scan 30 samples from the reservoir unit at 10 μm to better understand the porosity and look for clues to the flow rate mystery. 

Service Units @ Cost (£)
Sample preparation 30 40 1 200
QEMSCAN 10 30 250 7 500
Cuttings lithotyping add-on 30 20 600
Cuttings porosity add-on 30 40 1200
Pore-size distribution add-on 30 20 600
Reporting days 3 1 000 3 000
Project management days 1 1 000 1 000
Total cost 15 100
Standardised Rocktype mineral definitions and colour codes applies to mineral maps, plots and tabular data across all products.

Standardised Rocktype mineral definitions and colour codes applies to mineral maps, plots and tabular data across all products.

Delivery

A 1000 x 1000 pixel mineral map is supplied for each sample

A 1000 x 1000 pixel mineral map is supplied for each sample

Modal mineralogy by depth.

Modal mineralogy by depth.

Tabular data (Excel format) of mineralogy, porosity and lithotype for each sample.

Tabular data (Excel format) of mineralogy, porosity and lithotype for each sample.

 

Further information

For technical details see the QEMSCAN Technology page.