Identification_Information:

    Citation:

      Citation_Information:

        Originator: Alberta Energy Regulator

        Originator: Alberta Geological Survey

        Originator: Rubin, A. D.

        Originator: Brinsky, J.

        Originator: Welsh, B.

        Publication_Date: 2025

        Title: Distribution of Hydraulic Head in the Wabiskaw Hydrostratigraphic Unit (tabular data, tab-delimited format)

        Geospatial_Data_Presentation_Form: tabular digital data

        Series_Information:

          Series_Name: Digital Data

          Issue_Identification: DIG 2024-0006

        Publication_Information:

          Publication_Place: Edmonton, Alberta, Canada

          Publisher: Alberta Geological Survey

        Online_Linkage: https://ags.aer.ca/publications/all-publications/dig-2024-0006

    Description:

      Abstract: This data release contains hydraulic head data used to create a hydraulic head map of the Wabiskaw hydrostratigraphic unit (HSU). The data were acquired from the following sources:

1. Pressure data from drillstem tests (DSTs) from oil and gas wells

2. Water-level data from monitoring wells compiled from environmental impact assessments

Data have been processed, relevant records selected, and outliers removed to compile this dataset.

      Purpose: For computer display, query, and modelling of the hydraulic head distribution for the Wabiskaw HSU

      Supplemental_Information: Language: In English.

    Time_Period_of_Content:

      Time Period Information:

        Single Date/Time:

          Calendar_Date: 2015

    Currentness_Reference: ground condition

  Status:

    Progress: Complete

    Maintenance_and_Update_Frequency: None planned

  Spatial Domain:

    Bounding Coordinates:

      West_Bounding_Coordinate: -115.13

      East_Bounding_Coordinate: -110

      North_Bounding_Coordinate: 58.3

      South_Bounding_Coordinate: 54.88

  Keywords:

    Theme:

      Theme_Keyword_Thesaurus: ISO 19115 Topic Category

      Theme_Keyword: clearwater formation

      Theme_Keyword: data

      Theme_Keyword: geology

      Theme_Keyword: groundwater

      Theme_Keyword: hydraulic head

      Theme_Keyword: hydrogeology

      Theme_Keyword: potentiometric surface

      Theme_Keyword: wabiskaw member

      Theme_Keyword: water level

    Place:

      Place_Keyword_Thesaurus: ISO 19115 Topic Category

      Place_Keyword: 73l

      Place_Keyword: 73m

      Place_Keyword: 74d

      Place_Keyword: 74e

      Place_Keyword: 74l

      Place_Keyword: 83o

      Place_Keyword: 83p

      Place_Keyword: 84a

      Place_Keyword: 84b

      Place_Keyword: 84g

      Place_Keyword: 84h

      Place_Keyword: 84i

      Place_Keyword: 84j

      Place_Keyword: alberta

      Place_Keyword: canada

      Place_Keyword: east central alberta

      Place_Keyword: northeast alberta

  Access_Constraints: Public

  Use_Constraints: Acknowledgement of the Alberta Energy Regulator / Alberta Geological Survey as the originator/source of this information is required as described in the Open Government License - Alberta.

  Point_of_Contact:

    Contact_Information:

      Contact_Organization_Primary:

        Contact_Organization: Alberta Geological Survey

        Contact_Person: AGS Information Manager

      Contact_Position: AGS Information Manager

      Contact_Address:

        Address_Type: mailing and physical

        Address: Alberta Energy Regulator

        Address: 2th Floor, Twin Atria Building

        Address: 4999-98 Avenue NW

        City: Edmonton

        State_or_Province: Alberta

        Postal_Code: T6B 2X3

        Country: Canada

      Contact_Voice_Telephone: (780) 638-4491

      Contact_Facsimile_Telephone: (780) 422-1459

      Contact_Electronic_Mail_Address: AGS-Info@aer.ca

      Hours_of_Service: 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.

  Cross_Reference:

    Citation_Information:

      Originator: Alberta Energy Regulator

      Originator: Alberta Geological Survey

      Originator: Rubin, A. D.

      Originator: Brinsky, J.

      Originator: Welsh, B.

      Publication_Date: 2025

      Title: Distribution of Hydraulic Head in the Wabiskaw Hydrostratigraphic Unit

      Geospatial_Data_Presentation_Form: map

      Series_Information:

        Series_Name: Map

        Issue_Identification: MAP 650

      Publication_Information:

        Publication_Place: Edmonton, Alberta, Canada

        Publisher: Alberta Geological Survey

      Other_Citation_Details: ISBN: 978-1-4601-5715-2

      Online_Linkage: https://ags.aer.ca

  Cross_Reference:

    Citation_Information:

      Originator: Alberta Energy Regulator

      Originator: Alberta Geological Survey

      Originator: Rubin, A. D.

      Originator: Brinsky, J.

      Originator: Welsh, B.

      Publication_Date: 2025

      Title: Distribution of Hydraulic Head in the Wabiskaw Hydrostratigraphic Unit (gridded data, ASCII format)

      Geospatial_Data_Presentation_Form: raster digital data

      Series_Information:

        Series_Name: Digital Data

        Issue_Identification: DIG 2024-0007

      Publication_Information:

        Publication_Place: Edmonton, Alberta, Canada

        Publisher: Alberta Geological Survey

      Online_Linkage: https://ags.aer.ca

Data_Quality_Information:

  Attribute_Accuracy:

    Attribute_Accuracy_Report: Any errors in the original data were carried into this dataset and no systematic checking of attributes from original data sources was undertaken. Measured depths and elevations for the monitoring wells are somewhat inconsistent as many of them are not surveyed and the data is mined as-is from environmental impact assessments.

    Quantitative_Attribute_Accuracy_Assessment:

      Attribute_Accuracy_Value: n/a

      Attribute_Accuracy_Explanation: n/a

  Logical_Consistency_Report: Drillstem test data from oil and gas wells used in this dataset have been collected over decades, by different parties, and using different methods.

Null values were assigned where attributes were not present.

There may be more than one record for a Source_ID if the well was sampled more than once. This will be reflected in the Source_ID being duplicated. Geographic coordinates (latitude/longitude) may be the same for different wells, because wells could have been recompleted and the HSU resampled.

  Completeness_Report: All data records within the Wabiskaw HSU study area with sufficient head/pressure information were selected from both the described sources.

Null values are reported as -9999.

  Positional_Accuracy:

    Horizontal_Positional_Accuracy:

   Horizontal_Positional_Accuracy_Report: The locations of the oil and gas wells may be accurate to within millimetres depending on surveying standards at the time of drilling. The uncertainty associated with the locations of the monitoring wells is unknown as the locations are mined from environmental impact assessments.

    Vertical_Positional_Accuracy:

   Vertical_Positional_Accuracy_Report: The mid-point of the screened interval is also a calculated value and its accuracy is dependent on the accuracy of the measured depths and elevations provided in the well header. These values are somewhat inconsistent for the monitoring wells because many of them are not surveyed. For the oil and gas wells, the well elevations and locations are surveyed in, so accuracy will be to the same significant digits provided by the source, even though there may be considerable uncertainty as to where the sample actually came from.

The location of the DST intervals in oil and gas wells may be accurate to within millimetres in accordance with surveying standards at the time of drilling.

The monitoring well elevation is derived from the datum where available as reported in the environmental impact assessment (EIA). The reported ground surface elevation is used if no datum is available. Any error in elevation may influence the allocation of the well into the modelled HSU as well as the hydraulic head values, as the land surface elevation was used to calculate the mid-screen elevation and corresponding hydraulic head from measured “depth to” values.

  Lineage:

    Source_Information:

      Source_Citation:

        Citation_Information:

          Originator: Alberta Energy Regulator

          Originator: Energy Resources Conservation Board

          Originator: Alberta Energy and Utilities Board

          Publication_Date:

          Title: Oil and gas well data from AER corporate database

          Geospatial_Data_Presentation_Form: database

          Series_Information:

            Series_Name: Non-AGS Data Source

            Issue_Identification:

          Publication_Information:

            Publication_Place: Calgary, Alberta, Canada

            Publisher: Alberta Energy Regulator

          Online_Linkage: Not available online.

   Source_Scale_Denominator:

   Type_of_Source_Media: database

        Source Time Period of Content:

          Time Period Information:

            Single Date/Time:

       Calendar_Date:

     Source_Currentness_Reference: publication date

     Source_Citation_Abbreviation: OGW

     Source_Contribution: DST data from oil and gas wells

    Source_Information:

      Source_Citation:

        Citation_Information:

          Originator: Petro-Canada

          Publication_Date: 20051108

          Title: Amendment Application for Mackay River Expansion Volume 1

          Edition: Volume 1

          Geospatial_Data_Presentation_Form: document

          Series_Information:

            Series_Name: Non-AGS Data Source

            Issue_Identification:

          Publication_Information:

            Publication_Place: Edmonton, Alberta, Canada

            Publisher: Alberta Environment

          Online_Linkage: https://open.alberta.ca/dataset/031eec88-11bd-42ef-ac0c-9eaf8922c968/resource/6489ffd5-2f5c-4ea5-beff-5cb0b3a540ce/

   Source_Scale_Denominator:

   Type_of_Source_Media: online

        Source Time Period of Content:

          Time Period Information:

            Single Date/Time:

       Calendar_Date: 20051108

     Source_Currentness_Reference: publication date

     Source_Citation_Abbreviation: MW (Petro-Canada, 2005)

     Source_Contribution: Water levels from environmental impact assessments

    Source_Information:

      Source_Citation:

        Citation_Information:

          Originator: Syncrude

          Originator: AMEC Environment and Infrastructure

          Publication_Date: 20141210

          Title: Syncrude Canada Ltd. Mildred Lake Mine Extension Project Environmental Impact Assessment

          Geospatial_Data_Presentation_Form: document

          Series_Information:

            Series_Name: Non-AGS Data Source

            Issue_Identification:

          Publication_Information:

            Publication_Place: Edmonton, Alberta, Canada

            Publisher: Alberta Environment and Parks

          Other_Citation_Details: Volume 3, Appendix C - Hydrogeology

          Online_Linkage: https://open.alberta.ca/dataset/f98a9343-596f-4dd9-b865-3a082dd77b4d/resource/1c236db5-d9c6-4502-b363-07ef004cee5c

   Source_Scale_Denominator:

   Type_of_Source_Media: online

        Source Time Period of Content:

          Time Period Information:

            Single Date/Time:

       Calendar_Date: 20141210

     Source_Currentness_Reference: publication date

     Source_Citation_Abbreviation: MW (Syncrude, 2014)

     Source_Contribution: Locations of monitoring wells

    Source_Information:

      Source_Citation:

        Citation_Information:

          Originator: Athabasca Oil Sands Corp.

          Publication_Date: Dec 2009

          Title: Mackay River Commercial Project EIA

          Edition: Volume 3

          Geospatial_Data_Presentation_Form:

          Series_Information:

            Series_Name: Non-AGS Data Source

            Issue_Identification:

          Publication_Information:

            Publication_Place: Edmonton, Alberta, Canada

            Publisher: Alberta Geological Survey

          Online_Linkage: https://open.alberta.ca/dataset/031eec88-11bd-42ef-ac0c-9eaf8922c968/resource/6489ffd5-2f5c-4ea5-beff-5cb0b3a540ce/download/volume-i.pdf

   Source_Scale_Denominator:

   Type_of_Source_Media: online

        Source Time Period of Content:

          Time Period Information:

            Single Date/Time:

       Calendar_Date: Dec 2009

     Source_Currentness_Reference: publication date

     Source_Citation_Abbreviation: MW (Athabasca Oil Sands Corp., 2009)

     Source_Contribution: Water levels from environmental impact assessments

    Process_Step:

   Process_Description: Process steps for selection of pressure data from DSTs:

1. Records containing depth of tested interval, recovery information, and recovered water were selected;

2. The tested interval was constrained to less than or equal to 50 m;

3. DSTs were allocated to the Wabiskaw HSU based on the depth information of the tested interval;

4. DSTs from intervals straddling the top or bottom of the Wabiskaw HSU were excluded, unless they were from wells in data-poor areas and it was verified that less than 30% of the completion interval extended into the formation directly above or below the HSU, but not into any other formation.

5. DST pressure values were considered potentially valid if there was evidence of a mechanically sound test (no misruns), pressures had stabilized or were close to stabilization (tests must have Pmax), and flow and shut-in times were reported.

DSTs were individually examined to remove any remaining non-representative fluid pressures. Outliers were manually removed during the mapping process based on the following conditions:

1. Final shut-in and final flow times less than 30 minutes

2. Final shut-in time less than the final flow time

3. Difference between final and initial shut-in pressures is more than 25% (may be indicative of supercharging)

4. Substantial gas flow or significant oil recovery

Regional potentiometric surfaces were created using static water levels from monitoring wells and pressure data from DSTs. Pressure data were converted to equivalent freshwater hydraulic heads using the relationship: Hydraulic Head = Completion Mid Point Elevation + Pressure / ρg, where ρ = fluid density (1000 kg/m3 for freshwater), and g = gravitational acceleration (9.81 m2/s), pressure is measured in kPa (kg/ms2), and hydraulic head and mid point elevation are measured in metres above sea level (m asl).

DSTs and monitoring wells were also analyzed to determine if nearby production or injection had influenced the pressures. To identify these influences, the CII methodology from Singh et al. (2017) was used.

This dataset includes only those wells that were used in the production of final potentiometric surfaces. Details about the screening process can be found in the following reference: Jensen, G.K.S., Rostron, B., Palombi, D., and Melnik, A. (2013): Saskatchewan Phanerozoic Fluids and Petroleum Systems project: hydrogeological mapping framework; in Summary of investigations 2013, Volume 1, Saskatchewan Geological Survey, Sask. Ministry of the Economy, Misc. Rep. 2013-4.1, Paper A5, 10 p., URL http://publications.gov.sk.ca/details.cfm?p=80100 [October 2014].

   Process_Date: 2024

  Data_Quality_Information:

Spatial_Data_Organization_Information:

Spatial_Reference_Information:

Entity_and_Attribute_Information: Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: DIG 2024-0006

Entity_Type_Definition: This dataset contains a compilation of hydraulic head data used to create potentiometric surfaces for the Wabiskaw Hydrostratigraphic Unit (HSU).

Entity_Type_Definition_Source: Alberta Geological Survey

Attribute:

Attribute_Label: DataSrc

Attribute_Definition_Source: Alberta Geological Survey

Attribute_Definition: Source of the data: MW = monitoring well, or OGW = oil and gas well.

Attribute:

Attribute_Label: Source_ID

Attribute_Definition_Source: Alberta Geological Survey

Attribute_Definition: Well identifier from the source data. For monitoring well (MW) data this is the well identifier from the water level compilation in the environmental impact assessment. For oil and gas wells (OGW) data this is the unique well identifier.

Attribute:

Attribute_Label: Well_ID

Attribute_Definition_Source: Alberta Geological Survey

Attribute_Definition: Water well location formatted as LL-SS-TTT-RRWM where: L = legal subdivision or quarter section, S = section, T = township, R = range, W = west of, M = meridian.

Attribute:

Attribute_Label: Lat_NAD83

Attribute_Definition_Source: Alberta Geological Survey

Attribute_Definition: Latitude, NAD83 datum, decimal degrees north.

Attribute:

Attribute_Label: Long_NAD83

Attribute_Definition_Source: Alberta Geological Survey

Attribute_Definition: Longitude, NAD83 datum, decimal degrees east.

Attribute:

Attribute_Label: SWL_m

Attribute_Definition_Source: Alberta Geological Survey

Attribute_Definition: Static water level depth, in metres, for water wells.

Attribute:

Attribute_Label: MidInt_m28

Attribute_Definition_Source: Alberta Geological Survey

Attribute_Definition: Midpoint of tested interval, measured as elevation in metres above sea level, Canadian Geodetic Vertical Datum of 1928. Midpoint elevation of screened interval for monitoring wells and midpoint elevation of tested or completed interval for oil & gas wells.

Attribute:

Attribute_Label: HydrHd_m28

Attribute_Definition_Source: Alberta Geological Survey

Attribute_Definition: Equivalent fresh water hydraulic (piezometric) head, in metres above sea level, Canadian Geodetic Vertical Datum of 1928.

Attribute:

Attribute_Label: Residual_m

Attribute_Definition_Source: Alberta Geological Survey

Attribute_Definition: Calculated difference, in metres, between the modelled distribution of hydraulic head and measured values from wells.

Attribute:

Attribute_Label: Publisher

Attribute_Definition_Source: Alberta Geological Survey

Attribute_Definition: Organization that published the dataset.

  Distribution_Information:

    Distributor:

      Contact_Information:

        Contact_Organization_Primary:

          Contact_Organization: Alberta Geological Survey

          Contact_Person: AGS Information Manager

        Contact_Position: AGS Information Manager

        Contact_Address:

          Address_Type: mailing and physical

          Address: Alberta Energy Regulator

          Address: 2th Floor, Twin Atria Building

          Address: 4999-98 Avenue NW

          City: Edmonton

          State_or_Province: Alberta

          Postal_Code: T6B 2X3

          Country: Canada

        Contact_Voice_Telephone: (780) 638-4491

        Contact_Facsimile_Telephone: (780) 422-1459

        Contact_Electronic_Mail_Address: AGS-Info@aer.ca

        Hours_of_Service: 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.

Distribution_Liability: The Alberta Energy Regulator / Alberta Geological Survey (AER/AGS) licenses this information under the Open Government License - Alberta. Any references to proprietary software in our documentation, and/or any use of proprietary data formats in our releases, do not constitute endorsement by the AER/AGS of any manufacturer's product.

  Metadata_Reference_Information:

    Metadata_Date: 20250114

    Metadata_Contact:

      Contact_Information:

        Contact_Organization_Primary:

          Contact_Organization: Alberta Geological Survey

          Contact_Person: AGS Information Manager

        Contact_Position: AGS Information Manager

        Contact_Address:

          Address_Type: mailing and physical

          Address: Alberta Energy Regulator

          Address: 2th Floor, Twin Atria Building

          Address: 4999-98 Avenue NW

          City: Edmonton

          State_or_Province: Alberta

          Postal_Code: T6B 2X3

          Country: Canada

        Contact_Voice_Telephone: (780) 638-4491

        Contact_Facsimile_Telephone: (780) 422-1459

        Contact_Electronic_Mail_Address: AGS-Info@aer.ca

        Hours_of_Service: 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.

    Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

    Metadata_Standard_Version: FGDC-STD-001-1998

    Metadata_Time_Convention: local time

    Metadata_Access_Constraints: none

    Metadata_Use_Constraints: none