Identification Information:

Citation:

Citation Information:

Originator: Alberta Energy Regulator

Originator: Alberta Geological Survey

Originator: Hauck, T.E.

Publication Date: 201408

Title:

Subsurface Stratigraphic Picks for the Beaverhill Lake Group and adjacent strata of the Elk Point Point and Woodbend groups, Alberta Plains (tabular data, tab delimited format, to accompany Open File Report 2014-05)

Geospatial Data Presentation Form: tabular digital data

Series Information:

Series Name: Digital Data

Issue Identification: DIG 2014-0024

Publication Information:

Publication Place: Edmonton, Alberta, Canada

Publisher: Alberta Geological Survey

Online Linkage: http://www.ags.gov.ab.ca/publications/DIG/ZIP/DIG_2014_0024.zip

Description:

Abstract:

The dataset includes subsurface stratigraphic picks for the formations that comprise the Beaverhill Lake Group (Townships 29 to 113, Ranges 1W4 to 13W6) made from wireline geophysical well logs. The dataset also includes picks for the underlying Elk Point Group, and the overlying Woodbend Group. Lithostratigraphic picks for the Beaverhill Lake Group include the Fort Vermilion Formation, the Swan Hills Formation, the Slave Point Formation, and the Waterways Formation (top of the Beaverhill Lake Group). Lithostratigraphic picks for the underlying Elk Point Group include the Prairie Evaporite Formation, the Sulphur Point Formaiton, and the Watt Mountain Formation (base of the Beaverhill Lake Group). Lithostratigraphic picks for the overlying Woodbend Group include the Cooking Lake Formation, or its equivalent.

Purpose:

To provide a set of regional stratigraphic picks for the formations that comprise the Beaverhill Lake Group, and formations immediately over- and underlying the Beaverhill Lake Group, in the province of Alberta.

Supplemental Information: Language: In English;

Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 2012

Ending Date: 2013

Currentness Reference: ground condition

Status:

Progress: Complete

Maintenance and Update Frequency: Irregular

Spatial Domain:

Bounding Coordinates:

West Bounding Coordinate: -119.980272

East Bounding Coordinate: -110.090674

North Bounding Coordinate: 58.817728

South Bounding Coordinate: 51.585625

Keywords:

Theme:

Theme Keyword Thesaurus: none

Theme Keyword: alberta plains

Theme Keyword: beaverhill lake group

Theme Keyword: bedrock geology

Theme Keyword: cross sections

Theme Keyword: elk point group

Theme Keyword: geology

Theme Keyword: mapping

Theme Keyword: paleozoic

Theme Keyword: peace river arch

Theme Keyword: stratigraphic picks

Theme Keyword: stratigraphy

Theme Keyword: subsurface mapping

Theme Keyword: well log signature

Theme Keyword: woodbend group

Place:

Place Keyword Thesaurus: none

Place Keyword: 72m

Place Keyword: 73d

Place Keyword: 73e

Place Keyword: 73l

Place Keyword: 73m

Place Keyword: 74d

Place Keyword: 74e

Place Keyword: 74l

Place Keyword: 82n

Place Keyword: 82o

Place Keyword: 82p

Place Keyword: 83a

Place Keyword: 83b

Place Keyword: 83c

Place Keyword: 83d

Place Keyword: 83e

Place Keyword: 83f

Place Keyword: 83g

Place Keyword: 83h

Place Keyword: 83i

Place Keyword: 83j

Place Keyword: 83k

Place Keyword: 83l

Place Keyword: 83m

Place Keyword: 83n

Place Keyword: 83o

Place Keyword: 83p

Place Keyword: 84a

Place Keyword: 84b

Place Keyword: 84c

Place Keyword: 84d

Place Keyword: 84e

Place Keyword: 84f

Place Keyword: 84g

Place Keyword: 84h

Place Keyword: 84i

Place Keyword: 84j

Place Keyword: 84k

Place Keyword: 84l

Place Keyword: alberta

Place Keyword: canada

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: Publications and Marketing Advisor

Contact Position: Publications and Marketing Advisor

Contact Address:

Address Type: mailing and physical

Address: Alberta Energy Regulator

Address: 4th 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) 422-1927

Contact Facsimile Telephone: (780) 422-1918

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.

Data Quality Information:

Attribute Accuracy:

Attribute Accuracy Report:

A stratigraphic pick in a well is a point defined in three dimensions (X, Y and Z).

The accuracy of the pick depth, either in measured depth from the kelly bushing or with respect to sea level, is difficult to quantify and includes (but is not necessarily limited to) errors in

- well surface or bottom-hole latitude and longitude (X and Y);

- well ground elevation (Z);

- well kelly bushing elevation (Z);

- human error resulting from errors in picking the incorrect stratigraphic top (Z);

- data entry or data transfer (X, Y and/or Z); and

- incorrect well log depth calibration (Z).

Logical Consistency Report:

The data are tabular (point data with X, Y and Z values).

The author made all of the stratigraphic picks. All picks are ranked the same in quality.

As the dataset includes only vertical and deviated wells, the location data and well identifier data (UWI and UWI_MODIFIED) are not unique. In non-vertical wells, surface and bottom-hole latitude and longitude should be different. Picks from non-vertical wells are derived from the deviation survey within IHS Petra. The deviation survey uses the measurements of depth, inclination, and azimuth, and a minimum curvature method to interpolate the position of the stratigraphic pick along the non-vertical well path. The position of the stratigraphic pick on a non-vertical well path is therefore dependent upon the number of measurements of inclination and azimuth at depth during the time of drilling.

The data are from the Alberta Plains where deformation of the Devonian sedimentary succession is relatively minor. All points are east of the deformation front at a given latitude. Thus, rocks should not be thrusted or structurally duplicated. Therefore, the pick should only occur once in any given vertical well.

Completeness Report:

Wells and associated stratigraphic picks in this dataset correspond to the regional strike and dip cross-sections in the accompanying Open File Report.

Positional Accuracy:

Horizontal Positional Accuracy:

Horizontal Positional Accuracy Report:

The horizontal datum for the well locations is the North American Datum of 1983 (NAD83).

The latitude and longitude coordinates for well surface and bottom-hole locations are from IHS (Petra software). The horizontal positional accuracy is unknown.

Vertical Positional Accuracy:

Vertical Positional Accuracy Report:

The vertical datum for elevations in this data set is the Canadian Geodetic Vertical Datum of 1928 (CGVD28).

In vertical wells, the subsurface elevation of a pick in a well, measured with respect to sea level, is calculated by taking the elevation of the kelly bushing (on the drilling platform) and subtracting the measured depth of the pick on the geophysical well log.

Some uncertainty in the vertical depth of the pick will result if the borehole is not entirely vertical. In general, the amount of vertical depth due to deviations from the vertical in boreholes is deemed negligible with respect to other potential sources of vertical error in this study. In the case of non-vertical wells, the deviation survey from IHS Petra was used to calculate the position of the stratigraphic pick along the well path. The deviation survey uses the measurements of depth, inclination, and azimuth, and a minimum curvature method to interpolate the position of the stratigraphic pick along the non-vertical well path. The position of the stratigraphic pick on a non-vertical well path is therefore dependent upon the number of measurments of inclination and azimuth at depth during the time of drilling.

Perhaps the greatest source of vertical uncertainty in this study is potential error in the elevation of the kelly bushing (KB). Any errors in surveying the ground elevation of the well site can result in vertical error. In addition, once the ground elevation is determined, the site is usually prepared for the drilling rig. If the original survey marker is disturbed or moved, this can result in potential vertical errors. The KB elevation is usually derived from adding the height of the drilling platform above the ground surface to the survey ground elevation. If this is not done correctly, it can introduce vertical error in the KB elevation, which is then propagated in the measured depth to the pick and the pick elevation.

Although incorrect KB elevation data can be difficult to detect, the data were screened by comparing the ground elevation and the KB elevation (derrick height) for each well. An acceptable range of derrick height (calculated by subtracting ground elevation from KB elevation) of zero to eight metres was used. Wells with derrick heights outside this range were excluded.

Vertical error in the pick elevation value can also result from human error resulting from uncertainty or incorrect placement of the pick on the well logs. The occurrence and magnitude of this error is difficult to identify, but comparison with existing published pick datasets and checks for internal consistency (such as identification of global and local outliers using statistical methods and gridding data while picking) minimized this source of error as much as possible.

Lineage:

Process Step:

Process Description:

Stratigraphic picks were made within the IHS Petra software application using well logging data from IHS.

Attribute values were checked to ensure reasonable values. For instance, the well locations were plotted on a map and no obvious anomalous locations were seen. A quality control process was used to test the quality of the deviation survey in non-vertical wells. Structural and isopach mapping were employed to check for anomalies in the stratigraphic picks in this dataset.

The data were also screened by comparing the ground elevation and the KB elevation (derrick height) for each well. An acceptable range of derrick height (calculated by subtracting ground elevation from KB elevation) of zero to eight metres was used. Wells with derrick heights outside this range were excluded.

Process Date: 2012

Spatial Reference Information:

Horizontal Coordinate System Definition:

Geographic:

Latitude Resolution: 0.00001

Longitude Resolution: 0.00001

Geographic Coordinate Units: Decimal degrees

Geodetic Model:

Horizontal Datum Name: North American Datum of 1983

Ellipsoid Name: Geodetic Reference System 80

Semi-Major Axis: 6378137.000000

Denominator of Flattening Ratio: 298.257222

Entity and Attribute Information:

Detailed Description:

Entity Type:

Entity Type Label: Beaverhill_Lake_Group_and_adjacent_strata_picks

Entity Type Definition:

Subsurface stratigraphic picks for the Beaverhill Lake Group and adjacent strata of the Elk Point and Woodbend groups.

Entity Type Definition Source: Alberta Geological Survey

Attribute:

Attribute Label: ID

Attribute Definition:

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Unrepresentable Domain: Values do not exist in a known, predefined set.

Attribute:

Attribute Label: UWI

Attribute Definition: Unique identifier for the well assigned by the Alberta Energy Regulator to a licensed wellbore.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Codeset Domain:

Codeset Name: AER Directive 059

Codeset Source: http://www.aer.ca/rules-and-regulations/directives/directive-059

Attribute:

Attribute Label: UWI_MODIFIED

Attribute Definition: Unique identifier for the well in a sortable format.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Unrepresentable Domain: Values do not exist in a known, predefined set.

Attribute:

Attribute Label: LAT_NAD83

Attribute Definition: Latitude, NAD83 datum, [decimal degrees] north.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: 51.585625

Range Domain Maximum: 58.817728

Attribute Units of Measure: decimal degrees

Attribute:

Attribute Label: LONG_NAD83

Attribute Definition: Longitude, NAD83 datum, [decimal degrees] east.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: -119.980272

Range Domain Maximum: -110.090674

Attribute Units of Measure: decimal degrees

Attribute:

Attribute Label: KB_EL_MASL28

Attribute Definition:

Elevation of the well's kelly bushing in [metres above sea level], Canadian Geodetic Vertical Datum of 1928.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: 261.5

Range Domain Maximum: 1268.6

Attribute Units of Measure: metres above sea level

Attribute:

Attribute Label: GRND_EL_MASL28

Attribute Definition: Ground elevation in [metres above sea level], Canadian Geodetic Vertical Datum of 1928.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: 257.9

Range Domain Maximum: 1265.2

Attribute Units of Measure: metres above sea level

Attribute:

Attribute Label: COOKING_LAKE_MD_M

Attribute Definition:

Top of the Cooking Lake Formation (Woodbend Group) in measured depth from the kelly bushing in [metres].

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: 157.44

Range Domain Maximum: 3877.02

Attribute Units of Measure: metres

Attribute:

Attribute Label: COOKING_LAKE_EL_MASL28

Attribute Definition:

Top of the Cooking Lake Formation (Woodbend Group) in [metres above sea level], Canadian Geodetic Vertical Datum of 1928.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: -2678.71

Range Domain Maximum: 528.9

Attribute Units of Measure: metres above sea level

Attribute:

Attribute Label: WATERWAYS_MD_M

Attribute Definition:

Top of the Waterways Formation (Beaverhill Lake Group) in measured depth from the kelly bushing in [metres].

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: 163.73

Range Domain Maximum: 3929.5

Attribute Units of Measure: metres

Attribute:

Attribute Label: WATERWAYS_EL_MASL28

Attribute Definition:

Top of the Waterways Formation (Beaverhill Lake Group) in [metres above sea level], Canadian Geodetic Vertical Datum of 1928.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: -2728.12

Range Domain Maximum: 294.48

Attribute Units of Measure: metres above sea level

Attribute:

Attribute Label: SLAVE_POINT_MD_M

Attribute Definition:

Top of the Slave Point Formation (Beaverhill Lake Group) in measured depth from the kelly bushing in [metres].

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: 375.63

Range Domain Maximum: 3480.22

Attribute Units of Measure: metres

Attribute:

Attribute Label: SLAVE_POINT_EL_MASL28

Attribute Definition:

Top of the Slave Point Formation (Beaverhill Lake Group) in [metres above sea level], Canadian Geodetic Vertical Datum of 1928.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: -2564.32

Range Domain Maximum: 144.92

Attribute Units of Measure: metres above sea level

Attribute:

Attribute Label: SWAN_HILLS_MD_M

Attribute Definition:

Top of the Swan Hills Formation (Beaverhill Lake Group) in measured depth from the kelly bushing in [metres].

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: 2268.05

Range Domain Maximum: 3963.06

Attribute Units of Measure: metres

Attribute:

Attribute Label: SWAN_HILLS_EL_MASL28

Attribute Definition:

Top of the Swan Hills Formation (Beaverhill Lake Group) in [metres above sea level], Canadian Geodetic Vertical Datum of 1928.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: -2760.53

Range Domain Maximum: -1402.77

Attribute Units of Measure: metres above sea level

Attribute:

Attribute Label: FORT_VERMILION_MD_M

Attribute Definition:

Top of the Fort Vermilion Formation (Beaverhill Lake Group) in measured depth from the kelly bushing in [metres].

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: 381.45

Range Domain Maximum: 2919.47

Attribute Units of Measure: metres

Attribute:

Attribute Label: FORT_VERMILION_EL_MASL28

Attribute Definition:

Top of the Fort Vermilion Formation (Beaverhill Lake Group) in [metres above sea level], Canadian Geodetic Vertical Datum of 1928.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: -1705.7

Range Domain Maximum: 872.3

Attribute Units of Measure: metres above sea level

Attribute:

Attribute Label: WATT_MOUNTAIN_MD_M

Attribute Definition:

Top of the Watt Mountain Formation (Beaverhill Lake Group) in measured depth from the kelly bushing in [metres].

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: 397.98

Range Domain Maximum: 4067.9

Attribute Units of Measure: metres

Attribute:

Attribute Label: WATT_MOUNTAIN_EL_MASL28

Attribute Definition:

Top of the Watt Mountain Formation (Elk Point Group) in [metres above sea level], Canadian Geodetic Vertical Datum of 1928.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: -2862.09

Range Domain Maximum: 130.92

Attribute Units of Measure: metres above sea level

Attribute:

Attribute Label: SULPHUR_POINT_MD_M

Attribute Definition:

Top of the Sulphur Point Formation (Elk Point Group) in measured depth from the kelly bushing in [metres].

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: 1501.14

Range Domain Maximum: 1587.01

Attribute Units of Measure: metres

Attribute:

Attribute Label: SULPHUR_POINT_EL_MASL28

Attribute Definition:

Top of the Sulphur Point Formation (Elk Point Group) in [metres above sea level], Canadian Geodetic Vertical Datum of 1928.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: -1166.14

Range Domain Maximum: -1150.6

Attribute Units of Measure: metres above sea level

Attribute:

Attribute Label: PRAIRIE_EVAPORITE_MD_M

Attribute Definition:

Top of the Prairie Evaporite Formation (Elk Point Group) in measured depth from the kelly bushing in [metres].

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: 405.88

Range Domain Maximum: 2428.91

Attribute Units of Measure: metres

Attribute:

Attribute Label: PRAIRIE_EVAPORITE_EL_MASL28

Attribute Definition:

Top of the Prairie Evaporite Formation (Elk Point Group) in [metres above sea level], Canadian Geodetic Vertical Datum of 1928.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Range Domain:

Range Domain Minimum: -1679.66

Range Domain Maximum: 123.02

Attribute Units of Measure: metres above sea level

Attribute:

Attribute Label: PUBLICATION

Attribute Definition: The publication associated with this data set.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Unrepresentable Domain: Values do not exist in a known, predefined set.

Attribute:

Attribute Label: DATASET_SOURCE

Attribute Definition: The organization responsible for the creation of the data set.

Attribute Definition Source: Alberta Geological Survey

Attribute Domain Values:

Unrepresentable Domain: Values do not exist in a known, predefined set.

Distribution Information:

Distributor:

Contact Information:

Contact Organization Primary:

Contact Organization: Alberta Geological Survey

Contact Person: Publications and Marketing Advisor

Contact Position: Publications and Marketing Advisor

Contact Address:

Address Type: mailing and physical

Address: Alberta Energy Regulator

Address: 4th 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) 422-1927

Contact Facsimile Telephone: (780) 422-1918

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: 20140724

Metadata Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: Alberta Geological Survey

Contact Person: Publications and Marketing Advisor

Contact Position: Publications and Marketing Advisor

Contact Address:

Address Type: mailing and physical

Address: Alberta Energy Regulator

Address: 4th 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) 422-1927

Contact Facsimile Telephone: (780) 422-1918

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