This digital data release includes helium pycnometry results of selected samples for analyses of shale- and siltstone-hosted hydrocarbons. The strata evaluated include the following units:
- Basal Banff,
- Colorado,
- Duvernay,
- Exshaw,
- Montney,
- Muskwa,
- Wilrich,
- Nordegg, and
- Rierdon.
We compiled the data into a single dataset for ease of use. A combination of Sample_ID and Sample_Type columns will result in unique records. A site may have multiple samples, and each sample may have multiple analyses performed on it.
Fields with blank analysis values indicate that the specified test was not run on that sample. The number of significant digits of the sample results are as provided by the lab. Trailing zeros may have been dropped by Microsoft Excel or Microsoft Access. All attributes have well defined domains and were found to be valid within the domains.
The term shale describes a fine-grained, organic-rich rock and may not imply fissility.
We collected representative core samples based on available core for the target formations to get a reasonable spatial distribution of data. The core did not always cover the entire target interval. We performed high-density sampling in the shale targets and fine-grained rocks. Lower density sampling was done in other lithologies and bounding formations. If Date_Collected is 01-Jan-20xx, we collected the sample during the year indicated, but the exact date is unknown.
Empty cells in the Sample_Weight column means we did not record the weight for that sample.
Core samples were collected at the Energy Resources Conservation Board’s Core Research Centre.
Geologists recorded the sample and site information, such as location, depth, formation, and a brief lithological description at the time of collection. Representative splits of the samples were made and sent to the lab for helium pycnometry analysis.