Express Lab X-Ray Fluorescence (XRF)


Inorganic elemental geochemistry provides critical data on reservoir quality, depositional environment, and physical properties of a formation. XRF analysis delivers comprehensive reservoir data that can assist drilling operations with better well placements and enhanced lateral completions. 

Elemental data is key to understanding the factors associated with various depositional environments in which oil and gas deposits form. The data acquired from XRF elemental geochemistry help to characterize both the inorganic mineral constituents within a formation, as well as proxy for the organic components.

X-ray Fluorescence – Elemental Analysis

The XRF delivers a compositional measurement of 32 elements (12 major and 20 trace elements) in core and cuttings samples. This provides a significantly greater range of elemental data than can be acquired by conventional wireline elemental capture tools, and without the risk of downhole tools. Elemental analysis provides a better understanding of reservoir stratigraphy and rock properties. This aids in wellbore positioning and identifies brittle zones to inform hydraulic fracturing design. XRF elemental data can also estimate organic richness of shale using trace element proxies.


  • Rapid measurement of elemental composition provides accurate chemostratigraphic correlations
  • Detailed characterization of reservoir sequences
  • Quantification of K, Th, and U yields a spectral elemental gamma ray (EGR) curve for comparison to LWD-GR
  • Understanding the geochemical variation of the rock matrix allows for customized and more effective completions strategies.
  • Deterministic modeling of elemental data delivers an assessment of organic content and mineralogy.
  • Forward modeling of elements to minerals along with elemental spectral gamma provides improved identification of heterolithic zones as opposed to using only logs.

Weatherford Laboratories Express Lab XRF minimizes drilling and completions costs by assisting with ideal lateral placement and staging of hydraulic fracture stages based on lithology and organic proxy data.

Our integrated deliverable software platform Isologica® allows for the incorporation of multiple data sets from various sources—measurement while drilling (MWD), logging while drilling (LWD), and Laboratory Analysis—in an easy to interpret visual depth plot. In conjunction with Express Lab cuttings or core analysis, these data provide an unparalleled high-resolution view of the reservoir rocks.

Weatherford Laboratories Express Lab Services provide direct measurement of reservoir rocks in a rapid turnaround time to enhance both drilling and completion programs with critical, timely data.