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1995 National Oil and Gas Assessment 1/4-Mile Cells within the Appalachian Basin Province

Metadata also available as - [Outline] - [Parseable text] - [DIF]

Frequently-anticipated questions:

What does this data set describe?

Title:
1995 National Oil and Gas Assessment 1/4-Mile Cells within the Appalachian Basin Province
Abstract:
Cell maps for each oil and gas play were created by the USGS as a method for illustrating the degree of exploration, type of production, and distribution of production in a play or province. Each cell represents a quarter-mile square of the land surface, and the cells are coded to represent whether the wells included within the cell are predominantly oil-producing, gas-producing, both oil and gas-producing, or dry. The well information was initially retrieved from the Petroleum Information (PI) Well History Control System (WHCS), which is a proprietary, commercial database containing information for most oil and gas wells in the U.S. Cells were developed as a graphic solution to overcome the problem of displaying proprietary WHCS data. No proprietary data are displayed or included in the cell maps. The data from WHCS were current as of December 1990 when the cell maps were created in 1994.
Supplemental_Information:
Oil and gas plays within province 67 (Appalachian Basin) are listed here by play number, type, and name: 
Number Type           Name
 6701  conventional   Rome Trough
 6702  conventional   Upper Cambrian, Ordovician, and Lower/Middle Silurian Thrust Belt
 6703  conventional   Beekmantown/Knox Carbonate Oil/Gas
 6704  conventional   Rose Run/Gatesburg/Theresa Sandstone Gas
 6706  conventional   Trenton/Black River Carbonate Oil/Gas
 6708  conventional   Queenston/Bald Eagle Sandstone Gas
 6714  conventional   Keefer/Big Six Sandstone Gas
 6715  conventional   Corniferous Limestone/Big Six Sandstone Oil/Gas
 6716  conventional   Upper Silurian Sandstone Gas
 6717  conventional   Silurian Carbonate Gas
 6718  conventional   Silurian and Devonian Carbonate Thrust Belt
 6719  conventional   Devonian Carbonate Gas
 6720  conventional   Oriskany Sandstone Gas/Faulted Anticlines
 6721  conventional   Oriskany Sandstone Gas
 6725  conventional   Mississippian and Pennsylvanian Sandstone/Carbonate
 6727  conventional   Tuscarora Sandstone Gas
 6728  continuous     Clinton/Medina Sandstone Gas High Potential
 6729  continuous     Clinton/Medina Sandstone Gas Medium Potential
 6730  continuous     Clinton/Medina Sandstone Gas Medium-Low Potential
 6732  conventional   Clinton/Medina Sandstone Oil/Gas
 6733  continuous     Upper Devonian Sandstone Gas High Potential
 6734  continuous     Upper Devonian Sandstone Gas Medium Potential
 6735  continuous     Upper Devonian Sandstone Gas Medium-Low Potential
 6737  conventional   Upper Devonian Sandstone Oil/Gas
 6740  continuous     Devonian Black Shale - Greater Big Sandy
 6741  continuous     Devonian Black Shale - Greater Siltstone Content
 6742  continuous     Devonian Black Shale - Lower Thermal Maturity
 6750  coalbed gas    Northern Appalachian Basin - Anticline
 6751  coalbed gas    Northern Appalachian Basin - Syncline
 6752  coalbed gas    Central Appalachian Basin - Central Basin
 6753  coalbed gas    Cahaba Coal Field
  1. How should this data set be cited?

    United States Geological Survey (USGS), 1996, 1995 National Oil and Gas Assessment 1/4-Mile Cells within the Appalachian Basin Province: U.S. Geological Survey Digital Data Series DDS-30, USGS Central Energy Team, Denver, Colorado.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -87.87050481
    East_Bounding_Coordinate: -73.57334407
    North_Bounding_Coordinate: 44.40330518
    South_Bounding_Coordinate: 32.30729197

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: 01-Dec-1990
    Currentness_Reference: 19901201

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: vector digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Entity point
      • Point

    2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.00.
      The flattening of the ellipsoid used is 1/298.257222.

  7. How does the data set describe geographic features?

    pr"playnum"cg.pat or pr"playnum"cg.dbf
    Point Attribute Table. For each play, "playnum" is replaced with the actual play number in either a file, pr"playnum"cg.pat, or a table, pr"playnum"cg.dbf. (Source: U.S. Geological Survey)

    REG_NUM
    Region Number (Source: U.S. Geological Survey Energy Resource Regions)

    ValueDefinition
    8Eastern

    REG_NAME
    Region Name (Source: U.S. Geological Survey Energy Resource Regions)

    ValueDefinition
    Eastern 

    PROV_NUM
    Province Number (Source: U.S. Geological Survey Energy Resource Provinces)

    ValueDefinition
    67Appalachian Basin

    PROV_NAME
    Province Name (Source: U.S. Geological Survey Energy Resource Provinces)

    ValueDefinition
    Appalachian Basin 

    PLAY_NUM
    Play Number (Source: U.S. Geological Survey Energy Resource Plays)

    ValueDefinition
    6701Rome Trough
    6702Upper Cambrian, Ordovician, and Lower/Middle Silurian Thrust Belt
    6703Beekmantown/Knox Carbonate Oil/Gas
    6704Rose Run/Gatesburg/Theresa Sandstone Gas
    6706Trenton/Black River Carbonate Oil/Gas
    6708Queenston/Bald Eagle Sandstone Gas
    6714Keefer/Big Six Sandstone Gas
    6715Corniferous Limestone/Big Six Sandstone Oil/Gas
    6716Upper Silurian Sandstone Gas
    6717Silurian Carbonate Gas
    6718Silurian and Devonian Carbonate Thrust Belt
    6719Devonian Carbonate Gas
    6720Oriskany Sandstone Gas/Faulted Anticlines
    6721Oriskany Sandstone Gas
    6725Mississippian and Pennsylvanian Sandstone/Carbonate
    6727Tuscarora Sandstone Gas
    6728Clinton/Medina Sandstone Gas High Potential
    6729Clinton/Medina Sandstone Gas Medium Potential
    6730Clinton/Medina Sandstone Gas Medium-Low Potential
    6732Clinton/Medina Sandstone Oil/Gas
    6733Upper Devonian Sandstone Gas High Potential
    6734Upper Devonian Sandstone Gas Medium Potential
    6735Upper Devonian Sandstone Gas Medium-Low Potential
    6737Upper Devonian Sandstone Oil/Gas
    6740Devonian Black Shale - Greater Big Sandy
    6741Devonian Black Shale - Greater Siltstone Content
    6742Devonian Black Shale - Lower Thermal Maturity
    6750Northern Appalachian Basin - Anticline
    6751Northern Appalachian Basin - Syncline
    6752Central Appalachian Basin - Central Basin
    6753Cahaba Coal Field

    PLAY_NAME
    Play Name (Source: U.S. Geological Survey Energy Resource Plays)

    ValueDefinition
    Rome Trough 
    Upper Cambrian, Ordovician, and Lower/Middle Silurian Thrust Belt 
    Beekmantown/Knox Carbonate Oil/Gas 
    Rose Run/Gatesburg/Theresa Sandstone Gas 
    Trenton/Black River Carbonate Oil/Gas 
    Queenston/Bald Eagle Sandstone Gas 
    Keefer/Big Six Sandstone Gas 
    Corniferous Limestone/Big Six Sandstone Oil/Gas 
    Upper Silurian Sandstone Gas 
    Silurian Carbonate Gas 
    Silurian and Devonian Carbonate Thrust Belt 
    Devonian Carbonate Gas 
    Oriskany Sandstone Gas/Faulted Anticlines 
    Oriskany Sandstone Gas 
    Mississippian and Pennsylvanian Sandstone/Carbonate 
    Tuscarora Sandstone Gas 
    Clinton/Medina Sandstone Gas High Potential 
    Clinton/Medina Sandstone Gas Medium Potential 
    Clinton/Medina Sandstone Gas Medium-Low Potential 
    Clinton/Medina Sandstone Oil/Gas 
    Upper Devonian Sandstone Gas High Potential 
    Upper Devonian Sandstone Gas Medium Potential 
    Upper Devonian Sandstone Gas Medium-Low Potential 
    Upper Devonian Sandstone Oil/Gas 
    Devonian Black Shale - Greater Big Sandy 
    Devonian Black Shale - Greater Siltstone Content 
    Devonian Black Shale - Lower Thermal Maturity 
    Northern Appalachian Basin - Anticline 
    Northern Appalachian Basin - Syncline 
    Central Appalachian Basin - Central Basin 
    Cahaba Coal Field 

    SYMB
    Production Status (Source: U.S. Geological Survey)

    ValueDefinition
    1Cell contains at least one productive oil well, but no productive gas wells (green).
    2Cell contains at least one productive gas well, but no productive oil wells (red).
    3Cell contains at least one productive oil well and at least one productive gas well or one well producing both oil and gas (purple).
    4Cell contains no producing wells (charcoal).

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    R. F. Mast, D. H. Root, (ed.)

  3. To whom should users address questions about the data?

    Christopher J. Schenk
    USGS
    Geologist
    U.S. Geological Survey MS939, Box25046
    Denver, Colorado 80225
    USA

    (303) 236-5796 (voice)
    schenk@usgs.gov

Why was the data set created?

The purpose of the cell map is to display the exploration maturity, type of production, and distribution of production in quarter-mile cells in each of the oil and gas plays and each of the provinces defined for the 1995 U.S. National Oil and Gas Assessment.

How was the data set created?

  1. From what previous works were the data drawn?

    USGS DDS-30, Release 2 (source 1 of 4)
    U.S. Geological Survey, Gautier, D.L.(ed.), Dolton, G.L.(ed.), Takahashi, K.I.(ed.), and Varnes, K.L.(ed.), 1996, 1995 National Assessment of United States Oil and Gas Resources--Results, Methodology, and Supporting Data: U.S. Geological Survey Digital Data Series DDS-30.

    Type_of_Source_Media: CD-ROM
    Source_Contribution: U.S. National Oil and Gas Assessment

    USGS DDS-35 (source 2 of 4)
    U.S. Geological Survey, Beeman, W.R. (compiler), Obuch, R.C. (compiler), and Brewton, J.D. (compiler), 1996, Digital Map Data, Text, and Graphical Images in Support of the 1995 National Assessment of United States Oil and Gas Resources: U.S. Geological Survey Digital Data Series DDS-35.

    Type_of_Source_Media: CD-ROM
    Source_Contribution:
    digital map data in support of the 1995 U.S. National Oil and Gas Assessment

    USGS DDS-36 (source 3 of 4)
    U.S. Geological Survey, Charpentier, R.R. (compiler), Klett, T.R. (compiler), Obuch, R.C. (compiler), and Brewton, J.D. (compiler), 1996, Tabular Data, Text, and Graphical Images in Support of the 1995 National Assessment of United States Oil and Gas Resources: U.S. Geological Survey Digital Data Series DDS-36.

    Type_of_Source_Media: CD-ROM
    Source_Contribution:
    digital tabular data in support of the 1995 U.S. National Oil and Gas Assessment

    WHCS (source 4 of 4)
    Corporation, Petroleum Information , 19901201, Well History Control System: Petroleum Information Corporation, Houston, Texas.

    Type_of_Source_Media: Digital
    Source_Contribution: Lat./Long. Points, Final Well Class

  2. How were the data generated, processed, and modified?

    Date: Unknown (process 1 of 1)
    Oil and gas well data for each province in the U.S. was run through a FORTRAN program written by D.H. Root (ret.) and R.F. Mast (ret.). This program converted the WHCS data into latitude-longitude points that represent the center-points of quarter-mile cells. The cells were then assigned an attribute based on the type of production of the wells located within the cell. The latitude-longitude center points in the .cls files from the NOGA 95 Spatial Data Disk (DDS 35) were reformatted into Arc/Info Generate format (ASCII) files. They were then imported into ArcInfo coverages using the GENERATE command. Region/province/play numbers and names were appended to the file using lookup information acquired from tables on the NOGA 95 Tabular Information Disk (DDS36). Finally, production status from the original .cls file were joined to the coverages.

    Data sources used in this process:

    • USGS DDS-30, Release 2
    • USGS DDS-35
    • USGS DDS-36

  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    A sampling of cell locations and cell attributes were visually compared to a hard-copy plot of wells to identify errors.

  2. How accurate are the geographic locations?

    A visual comparison was made using a sampling of cell locations and cell attributes with well locations and attributes. In particular, the values of latitude and longitude for the wells in WHCS were assumed to be accurate.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    The cells were defined using the well data in the PI WHCS database. The WHCS database contains over two million wells for the U.S., which, although not a complete tabulation of all U.S. wells, is the most complete well database available for the United States.

  5. How consistent are the relationships among the observations, including topology?

    The accuracy of the cells, as created by the FORTRAN program of D.H. Root and R.F. Mast, depends wholly upon the accuracy of the oil and gas well information in the version of the PI WHCS database. For the national scale of the 1995 Oil and Gas Assessment, the assumption was made that the data in WHCS were of sufficient accuracy for such a national-scale analysis.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: none
Use_Constraints: none

  1. Who distributes the data set? (Distributor 1 of 1)

    U.S. Geological Survey, Central Energy Team
    GIS Coordinator
    U.S. Geological Survey MS939, Box 25046
    Denver, Colorado 80225
    USA

    (303) 236-7773 (voice)
    lbiewick@usgs.gov

  2. What's the catalog number I need to order this data set?

  3. What legal disclaimers am I supposed to read?

    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.

  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 05-Jun-2001
Metadata author:
U.S. Geological Survey, Central Energy Team
GIS Coordinator
U.S. Geological Survey MS939, Box 25046
Denver, Colorado 80225
USA

(303) 236-7773 (voice)
lbiewick@usgs.gov

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

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