- 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 wells2. Water-level data from monitoring wells compiled from environmental impact assessmentsData 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 minutes2. Final shut-in time less than the final flow time3. Difference between final and initial shut-in pressures is more than 25% (may be indicative of supercharging)4. Substantial gas flow or significant oil recoveryRegional 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 2024-0006Entity_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 SurveyAttribute:Attribute_Label: DataSrcAttribute_Definition_Source: Alberta Geological SurveyAttribute_Definition: Source of the data: MW = monitoring well, or OGW = oil and gas well.Attribute:Attribute_Label: Source_IDAttribute_Definition_Source: Alberta Geological SurveyAttribute_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_IDAttribute_Definition_Source: Alberta Geological SurveyAttribute_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_NAD83Attribute_Definition_Source: Alberta Geological SurveyAttribute_Definition: Latitude, NAD83 datum, decimal degrees north.Attribute:Attribute_Label: Long_NAD83Attribute_Definition_Source: Alberta Geological SurveyAttribute_Definition: Longitude, NAD83 datum, decimal degrees east.Attribute:Attribute_Label: SWL_mAttribute_Definition_Source: Alberta Geological SurveyAttribute_Definition: Static water level depth, in metres, for water wells.Attribute:Attribute_Label: MidInt_m28Attribute_Definition_Source: Alberta Geological SurveyAttribute_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_m28Attribute_Definition_Source: Alberta Geological SurveyAttribute_Definition: Equivalent fresh water hydraulic (piezometric) head, in metres above sea level, Canadian Geodetic Vertical Datum of 1928.Attribute:Attribute_Label: Residual_mAttribute_Definition_Source: Alberta Geological SurveyAttribute_Definition: Calculated difference, in metres, between the modelled distribution of hydraulic head and measured values from wells.Attribute:Attribute_Label: PublisherAttribute_Definition_Source: Alberta Geological SurveyAttribute_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