Who Should Attend
Geologists, geochemists, petrophysicists and reservoir engineers who want to understand better their unconventional reservoirs.
This course will give first-hand experience of the use of XRF and other chemostratigraphy tools and will share methodologies and approaches that maximize the integration of XRF with other disciplines. This course will demonstrate the usefulness of XRF using real case examples and will discuss issues and answer questions that the students may have with respect to XRF and chemostratigraphy tools.
course will be a mixture of theory about tools and statistics, real case
examples of Canadian shale and tight siltstone reservoirs and group discussions
Review of the various
chemostratigraphy tools – pros and cons
comparison of available chemostratigraphy tools essentially XRF, ICP-MS and
ICP-OES will help understand what kind of information can be obtained together
with the limitations of each of these tools.
resolution, usefulness and application issues
strong emphasis will be given on sampling strategy as a function of the problem
to be resolved or the question to be answered. Limit of detection depends on
the nature of the anode of the device as will the range of elements detected.
XRF to complement core
descriptions and sedimentological interpretation – evidence and methodology
can be an outstanding tool to complement and quality control core descriptions
and interpretations. Group discussion will help the participants grasp how to make
maximum use of XRF elemental values, trends or outliers to review and
complement existing interpretations.
Acquisition and use of
XRF from drill cuttings and from outcrops
precaution may be needed when dealing with XRF measurements of drill cuttings,
uncut cores or from outcrops. For example results will vary when selecting
different cuttings size as finer cuttings will take less time to reach the
shale shaker. Use of XRF vacuum pump will not be possible on cuttings or in
most outcrop situations.
Use of single elements,
ratios for various geological and engineering proxies
XRF analysis provides many measurements of many elements. A review will be made
to select the best suited approach as a function of the objective of the study.
Review of methods to
optimize, speed-up and quality control correlation
analytical and graphical methods will be demonstrated with real shale and tight
siltstone case examples
Image analysis and
shades of grey profiles as a complement to XRF
usefulness of shades of grey profiling will be demonstrated together with
examples of what not to do. The main focus being its integration with XRF data
and with sedimentological descriptions. Assessment of Total Organic Carbon or
presence of bitumen will be explained with examples from the WCSB.
Tested and newly
developed statistical approaches for multivariate and PCA analyses
statistical tools will be described, some being more analytical and other ones
being more graphical. Additionally some new PCA approaches tightly tailored for
the oil industry and more particularly for XRF have delivered very promising
results that will be demonstrated during the course.