Geochemistry analyses are largely used in unconventional plays such as the Montney and Duvernay, especially in the exploration and appraisal stage. XRD, XRF and FTIR analysis provide quantitative analysis of drill cuttings and core. Geochemical well logs are utilized in:
XRF (X-Ray Fluorescence) analysis is deployed in the field during the drilling process to provide near-real-time elemental analysis of the drilled strata. Results are interpreted, and lead to quantitative mineralogical determination and interpretation of geomechanical parameters (brittleness and ductility indicators such as Poisson’s Ratio and Young’s Modulus). The geomechanical mapping of the well can then be used to plan frac stage placement in the most efficient manner. Time is saved and completion costs can decrease when frac stages are placed in optimal position or spacing.
Analysis of relative elemental abundances creates a quantifiable basis for understanding the mineralogy, provenance, anoxia, depositional environment, and diagenetic history of the formation being studied. Measurements are conducted on both drill cuttings and cores. At Chinook, we utilise the advanced Brucker D8 Discover. The combination of XRF and XRD technologies blend the high throughput of the XRF setup with the advanced mineralogical determinations of the XRD powder diffraction platform.
Mud gas is measured while drilling with gas detectors:
Gas samples are collected and preserved in Iso-tubes and the analysed in laboratories. Isotopes and components lead to detailed fingerprinting of reservoirs.