Sample Requirements for Geochemical Analyses
There are specific sample quantity requirements to yield optimal results for each geochemical laboratory procedure / analysis.
Please look below to find our sample requirements for each geochemical analysis type.
General Sample Requirements
Approximately 10 grams of sample is enough sample material for most analyses. However, 30 grams is preferred. Certain analyses require very little sample; for example, TOC and programmed pyrolysis analyses require only about 300 mg of sample.
Vitrinite Reflectance Measurements
For vitrinite reflectance measurements, a larger sample amount is required, which is dependent on the organic richness of the sample generally 5 grams of sample is sufficient if the TOC is > 1.00%.
TOC, programmed pyrolysis, and vitrinite reflectance
TOC, programmed pyrolysis, and vitrinite reflectance - 10-30 grams. If rock extraction is planned, the aliquot of sample for vitrinite reflectance can be extracted prior to kerogen isolation.
Thermal API Gravity, Viscosity and Composition
Thermal API gravity, viscosity, and composition analysis require about 2-3 grams of reservoir rock.
Kinetic analysis: about 5 grams is needed, but for organic rich samples only 100-200 mg of sample is needed.
Oil analysis such as fingerprinting and biomarker analysis require only about 5 ml of sample.