1995 National Oil and Gas Assessment Plays

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: United States Geological Survey (USGS)

Publication_Date: 1996

Title: 1995 National Oil and Gas Assessment Plays

Publication_Information:

Publication_Place: Denver, Colorado

Publisher: USGS Central Energy Team

Description:

Abstract:

The fundamental geologic unit used in the 1995 National Oil and Gas Assessment was the play, which is defined as a set of known or postulated oil and or gas accumulations sharing similar geologic, geographic, and temporal properties, such as source rock, migration pathways, timing, trapping mechanism, and hydrocarbon type. The geographic limit of each play was defined and mapped by the geologist responsible for each province. The play boundaries were defined geologically as the limits of the geologic elements that define the play, such as the limits of the reservoir rock, geologic structures, source rock, and seal lithologies. The only exceptions to this are plays that border the Federal-State water boundary. In these cases, the Federal-State water boundary forms part of the play boundary. The play boundaries were defined in the period 1993-1994.

Purpose:

The purpose of the play map is to illustrate the geologic boundary of the play as defined for the 1995 U.S. National Assessment. The play was used as the fundamental assessment unit.

Supplemental_Information:

Plays with insufficient data or that were given low probability of containing an accumulation of minimum size, were not quantitatively assessed during the 1995 National Oil and Gas Assessment.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1996

Currentness_Reference: 1996

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -173.226

East_Bounding_Coordinate: -66.885

North_Bounding_Coordinate: 71.439

South_Bounding_Coordinate: 24.396

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: National Oil and Gas Assessment

Theme_Keyword: Energy Resources

Theme_Keyword: Oil

Theme_Keyword: Natural Gas

Theme_Keyword: Resource Assessment

Theme_Keyword: Earth Science

Theme_Keyword: Natural Resources

Theme_Keyword: U.S. Geological Survey

Theme_Keyword: USGS

Theme_Keyword: Geology

Theme_Keyword: Provinces

Theme_Keyword: Play Boundaries

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: United States

Place_Keyword: USGS Regions

Place_Keyword: USGS Provinces

Access_Constraints: none

Use_Constraints: none

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Christopher J. Schenk

Contact_Organization: USGS

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: U.S. Geological Survey MS939, Box25046

City: Denver

State_or_Province: Colorado

Postal_Code: 80225

Country: USA

Contact_Voice_Telephone: (303) 236-5796

Contact_Electronic_Mail_Address: schenk@usgs.gov

Native_Data_Set_Environment: ARC/INFO version 7.0.4

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The main attribute for the play in this coverage is the play number, in which the first two digits represent the province number, and the next two digits represent the play number. Other attributes include the play name, and the region and province names and numbers.

Logical_Consistency_Report:

The play boundaries were defined on the basis of the surface and subsurface geology of the play, and the oil and gas production within the play. The province geologist was required to defend the geologic boundary of the play in a formal play review meeting.

Completeness_Report:

The play was mapped in part on the data contained in the PI WHCS database for wells (1990 update), and the Nehring Significant Oil and Gas Field File (1992 update). Plays with insufficient data or that were given low probability of containing an accumulation of minimum size, were not quantitatively assessed during the 1995 National Oil and Gas Assessment.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The play boundary was meant to delineate the gross boundary of the geologic elements that define the play.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Originator: Gautier, D.L. (ed.)

Originator: Dolton, G.L. (ed.)

Originator: Takahashi, K.I. (ed.)

Originator: Varnes, K.L. (ed.)

Publication_Date: 1996

Title:

1995 National Assessment of United States Oil and Gas Resources--Results, Methodology, and Supporting Data

Edition: Release 2

Series_Information:

Series_Name: U.S. Geological Survey Digital Data Series

Issue_Identification: DDS-30

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1996

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: USGS DDS-30

Source_Contribution: U.S. National Oil and Gas Assessment

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Originator: Beeman, W.R. (compiler)

Originator: Obuch, R.C. (compiler)

Originator: Brewton, J.D. (compiler)

Publication_Date: 1996

Title:

Digital Map Data, Text, and Graphical Images in Support of the 1995 National Assessment of United States Oil and Gas Resources

Series_Information:

Series_Name: U.S. Geological Survey Digital Data Series

Issue_Identification: DDS-35

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1996

Source_Currentness_Reference: Publication Date

Source_Citation_Abbreviation: USGS DDS-35

Source_Contribution:

digital map data in support of the 1995 U.S. National Oil and Gas Assessment

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Originator: Charpentier, R.R. (compiler)

Originator: Klett, T.R. (compiler)

Originator: Obuch, R.C. (compiler)

Originator: Brewton, J.D. (compiler)

Publication_Date: 1996

Title:

Tabular Data, Text, and Graphical Images in Support of the 1995 National Assessment of United States Oil and Gas Resources

Series_Information:

Series_Name: U.S. Geological Survey Digital Data Series

Issue_Identification: DDS-36

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1996

Source_Currentness_Reference: Publication Date

Source_Citation_Abbreviation: USGS DDS-36

Source_Contribution:

digital tabular data in support of the 1995 U.S. National Oil and Gas Assessment

Process_Step:

Process_Description:

We ran lins2cov.aml on the .lin files (from USGS DDS-35) to create the play coverages. The lins2cov.aml takes files from the NOGA 95 Spatial Data Disk (DDS-35), and reformats into Arc/Info Generate format (ASCII) files. They are then imported into ArcInfo coverages using the GENERATE command; subsequently they are cleaned to remove any potential overlap of polygons (using .000001 weed and fuzzy tolerances). Region/province/play numbers and names are appended to the file using lookup information acquired from tables on the NOGA 95 Tabular Information Disk (DDS-36). Plays with insufficient data or that were given low probability of containing an accumulation of minimum size, were not quantitatively assessed during the 1995 National Oil and Gas Assessment. The coverage is then converted to a shape file.

Process_Date: 20010400

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Complete chain

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.0

Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: pr"playnum"g.pat or pr"playnum"g.dbf

Entity_Type_Definition:

Polygon Attribute Table. For each play, "playnum" is replaced with the actual play number in either a file, pr"playnum"g.pat, or a table, pr"playnum"g.dbf.

Entity_Type_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: AREA

Attribute_Definition: Area of Polygon

Attribute_Definition_Source: Software Computed

Attribute_Domain_Values:

Unrepresentable_Domain: floating

Attribute:

Attribute_Label: PERIMETER

Attribute_Definition: Perimeter of Polygon

Attribute_Definition_Source: Software Computed

Attribute_Domain_Values:

Unrepresentable_Domain: floating

Attribute:

Attribute_Label: PR"playnum"G#

Attribute_Definition:

Internal Feature Number. For each play, "playnum" is replaced with the actual play number.

Attribute_Definition_Source: Software Computed

Attribute_Domain_Values:

Unrepresentable_Domain: binary

Attribute:

Attribute_Label: PR"playnum"-ID

Attribute_Definition:

Feature Identification Number. For each play, "playnum" is replaced with the actual play number.

Attribute_Definition_Source: Software Computed or User Defined

Attribute_Domain_Values:

Unrepresentable_Domain: binary

Attribute:

Attribute_Label: REG_NUM

Attribute_Definition: Region Number

Attribute_Definition_Source: U.S. Geological Survey Energy Resource Regions

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: "Regionnum"

Attribute:

Attribute_Label: REG_NAME

Attribute_Definition: Region Name

Attribute_Definition_Source: U.S. Geological Survey Energy Resource Regions

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: "Regionname"

Attribute:

Attribute_Label: PROV_NUM

Attribute_Definition: Province Number

Attribute_Definition_Source: U.S. Geological Survey Energy Resource Provinces

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: "Provincenum"

Attribute:

Attribute_Label: PROV_NAME

Attribute_Definition: Province Name

Attribute_Definition_Source: U.S. Geological Survey Energy Resource Provinces

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: "Provincename"

Attribute:

Attribute_Label: PLAY_NUM

Attribute_Definition: Play Number

Attribute_Definition_Source: U.S. Geological Survey Energy Resource Plays

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: "Playnums"

Attribute:

Attribute_Label: PLAY_NAME

Attribute_Definition: Play Name

Attribute_Definition_Source: U.S. Geological Survey Energy Resource Plays

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: "Playnames"

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Central Energy Team

Contact_Position: GIS Coordinator

Contact_Address:

Address_Type: mailing and physical address

Address: U.S. Geological Survey MS939, Box 25046

City: Denver

State_or_Province: Colorado

Postal_Code: 80225

Country: USA

Contact_Voice_Telephone: (303) 236-7773

Contact_Electronic_Mail_Address: lbiewick@usgs.gov

Distribution_Liability:

Although the data has been processed on the computer system at the U.S. Geological Survey, U.S. Department of the Interior, no warranty, expressed or implied, is made by the Geological Survey regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: shapefile

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://energy.cr.usgs.gov>

Fees: no fees

Available_Time_Period:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2001

Metadata_Reference_Information:

Metadata_Date: 20010417

Metadata_Review_Date: 20010430

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Central Energy Team

Contact_Position: GIS Coordinator

Contact_Address:

Address_Type: mailing and physical address

Address: U.S. Geological Survey MS939, Box 25046

City: Denver

State_or_Province: Colorado

Postal_Code: 80225

Country: USA

Contact_Voice_Telephone: (303) 236-7773

Contact_Electronic_Mail_Address: lbiewick@usgs.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998