This digital dataset contains geochemical analyses for 288 brine samples collected from producing oil and gas wells as part of the Alberta Geological Survey’s Mineral Mapping Program from 2021 to 2024. The dataset provides a regional distribution of some critical elements for the green and digital economy found in oilfield brines of the Alberta Basin. Producing hydrocarbon wells from key geological intervals were sampled, including the Keg River, Swan Hills, Leduc, Nisku, and Montney formations, along with units in the Beaverhill Lake, Wabamun, Rundle, Ellis, Mannville, and Colorado groups.
The samples underwent routine water analyses and were analyzed for trace elements and metals, and strontium, lithium, oxygen, and hydrogen isotopes. A subset of samples was analyzed for boron, sulphur, carbon, and chlorine isotopes. The results of these chemical and isotopic analyses can help better understand geochemical processes related to the origin, accumulation, and transport of dissolved mineral constituents.
Further quality assurance and control on the brine geochemistry data collected in 2021 and 2022 (previously released in 2023 as AER/AGS Digital Data 2022-0052 and 2023-0019) revealed a subset of erroneous data with respect to lithium (Li – mg/L) and bromide (Br – mg/L) concentrations and a subset of non-representative formation water samples. A data validation exercise carried out in collaboration with the analytical laboratory included a thorough review of sampling protocols and laboratory analytical procedures, the resampling of six wells, and the addition of one new well sample. The analytical results of 32 samples were removed from the original dataset due to data quality concerns. Values for Br and Li concentration were updated for a subset of wells where necessary based on our review. More information is available in the Supplementary Information on Data Quality Assurance / Quality Control Process document included with this digital data release or by contacting AGS-info@aer.ca.
This work was completed under the Mineral Grant provided by the Government of Alberta on June 22, 2021.
Reimert, C., Lyster, S., Palombi, D. and Bernal, N. (2025): Brine geochemical data, mineral mapping program, 2021–2024 (tabular data, tab delimited format); Alberta Energy Regulator / Alberta Geological Survey, AER/AGS Digital Data 2023-0019.