QEMSCAN 4

QEMSCAN 4 is a high resolution scan giving fine detail of mineral grains and pore lining phases.  

QEMSCAN 10 Key features
Scan area 4 x 4 mm
Scan resolution 4 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 4 service is ideal for mineralogy and textural studies of fine grained material and provides detailed mineral association data like pore lining phases. 

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

Example project

A reservoir quality geologist needs to understand the porosity and permeability of the reservoir unit of a given well because the flow rates are lower than expected. There is no core from this well, so we design a QEMSCAN 4 project using cuttings to study pore lining phases. We scan 12 samples from the reservoir unit at 4 μm. 

Service Units
Sample preparation 12
QEMSCAN 4 12
Cuttings porosity add-on 12
Pore-size distribution add-on 12
Reporting days 1
Project management days 1
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 at μm resolution is supplied for each sample

Tabular data (Excel format) of mineralogy, porosity and lithotype for each sample. Optionally also includes mineral association data.

Tabular data (Excel format) of mineralogy, porosity and lithotype for each sample. Optionally also includes mineral association data.

 

Further information

For technical details see the QEMSCAN Technology page.