Scope & deliverables
List of petrography services
A modular catalogue of petrographic descriptions, quantitative measurements, complementary analyses and integrated interpretation—adapted to your samples and project objectives.
Thin-section petrography of clastic sediments
ServiceDescription
Basic / quicklook descriptionQualitative texture and composition.
Standard descriptionTexture, composition and paragenetic sequence with semi-quantitative estimates of grains, matrix, cements, replacements and porosity.
Fully quantitative descriptionDetailed description plus 300+ point counts using standard petrographic categories.
Point countingStandard or Touchstone-compatible quantitative mineral proportions, typically 300+ counts.
Photo documentationRepresentative overviews and close-ups with interpreted annotations where required.
Grain-size analysisLongest-axis measurements on 100+ framework grains.
Grain-coat coverageCoverage measurements on 50+ coated grains, including Touchstone-compatible output.
Pore-network analysisDigital image analysis of meso- and macroporosity, pore geometry and connectivity.
Petrographic reportBasic or detailed written interpretation with figures, tables and integrated conclusions.
Thin-section petrography of carbonate sediments
ServiceDescription
Basic / quicklook descriptionQualitative texture, components and porosity.
Standard descriptionTexture, composition and paragenesis with semi-quantitative estimates of grains, matrix, cements, replacements and porosity.
Point countingQuantitative analysis of components, cements, replacements and pore types.
Photo documentationRepresentative overviews and diagnostic close-ups.
Pore-network analysisImage-based quantification of visible pore types and pore-space attributes.
Petrographic reportBasic or detailed written description and interpretation.
Complementary analytical services
ServiceDescription
Sampling & logisticsSampling strategy, sample selection, packing, documentation and shipping.
Thin-section preparationStandard, stained and polished thin sections through specialist providers.
Thin-section scanningHigh-resolution imaging of complete thin sections.
X-ray diffractionWhole-rock and clay-fraction mineral identification.
SEM–EDXHigh-resolution imaging, mineral characterization and elemental analysis or mapping.
ICP-OES / ICP-MSWhole-rock and mineral chemical composition.
Core & plug descriptionSedimentary facies description, interpretation and classification.
Integration & interpretation
ServiceDescription
Data analysisQuality control, analysis and visualization of petrographic and related datasets.
Data integrationCombined interpretation of provenance, sedimentology, diagenesis and reservoir properties.
Property mappingWell-, field- or basin-scale distribution maps based on petrographic observations.
Petrographic rock typingGeological clustering aligned with petrophysical and geomodelling workflows.
Diagenetic modelIntegrated paragenesis and interpretation of reservoir-quality impact.
Reservoir-quality predictionTouchstone-supported modelling where client software access is available.
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