Oil, Gas, and Gas Storage Fields in Illinois (2002)

Identification_Information:

Citation:

Citation_Information:

Title: Oil, Gas, and Gas Storage Fields in Illinois (2002)
Geospatial_Data_Presentation_Form: vector digital data

Description:

Abstract:

Polygon outlines of Oil, Gas, and Gas Storage Fields in Illinois, with attributes for field code, field name, and field type. This is intended as a general cartographic reference for petroleum-related fields in the state, and is not a comprehensive listing nor a true areal representation. Individual small polygons resulting from the automated digital mapping process may have been removed from display, potentially affecting the visualization of certain very small fields and/or isolated producing wells.

Purpose:

To help the oil and gas industry by delineating the general outlines of Oil, Gas, and Gas Storage Fields in Illinois. This dastaset is suitable for use at 1:24,000 scale.

The Illinois State Geological Survey gratefully acknowledges the support of the Petroleum Technology Transfer Council (PTTC) in the development of this product. The PTTC is primarily funded by the U.S. Department of Energy's Office of Fossil Energy through the National Petroleum Technology Office and the National Energy Technology Lab.

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -91.222811
East_Bounding_Coordinate: -87.524492
North_Bounding_Coordinate: 42.302201
South_Bounding_Coordinate: 37.705191

Keywords:

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: geology
Theme_Keyword: oil and gas
Theme_Keyword: oil
Theme_Keyword: gas
Theme_Keyword: gas storage
Theme_Keyword: fields
Theme_Keyword: petroleum

Access_Constraints:

ISGS information must be obtained directly from the ISGS or from an authorized distributor. Be aware that ISGS information obtained from an unauthorized third party may have been altered subsequent to original distribution, or may no longer be current. Any access to these data, Web sites, computer systems, electronic services, and electronic networks is governed by University and campus policies, in particular, but not limited to, the Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign, the ISGS Terms of Use document available at the ISGS Web site, and the University of Illinois Web Privacy Notice. Links to these are provided in the Cross References section.

Use_Constraints:

ISGS information is the property of and copyrighted by the Board of Trustees of the University of Illinois with all rights reserved. University copyright policy is stated in the General Rules Concerning University Organization and Procedure, Article III, Section 4. A link is provided in the Cross References section. Individuals or entities may make fair use of copyrighted ISGS material, such as reproducing a single figure or table, or using a brief text quotation, without obtaining formal permission, but in all cases the Illinois State Geological Survey must be credited as the source of the material. To reproduce ISGS information beyond the fair use standard, permission must be obtained from the ISGS Information Office, 615 East Peabody Drive, Champaign, Illinois 61820, 217-333-4747, isgs@isgs.illinois.edu. License fees and a license agreement may be required, depending on the proposed usage. Any use of these data is governed by University and campus policies, in particular, but not limited to, the Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign, the ISGS Terms of Use document available at the ISGS Web site, and the University of Illinois Web Privacy Notice. Links to these are provided in the Cross References section. Map information is to be used at a scientifically and cartographically appropriate scale, that is, at a scale no greater than indicated on the map or as described in the documentation of the map or map data. Map information is not appropriate for, and is not to be used as, a geodetic, legal, or engineering base. Map information has no legal basis in the definition of boundaries or property lines and is not intended as a substitute for surveyed locations such as can be determined by a registered Public Land Surveyor.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: IL State Geological SUrvey
Contact_Person: Geological Records Unit

Data_Set_Credit:

Data compilation: Philip Johanek, Brian Hacker, David Lampe, Steve Gustison, and Joan Crockett, Illinois State Geological Survey.

GIS Processing: Philip Johanek, Steve Gustison, and Christopher Korose, Illinois State Geological Survey.

Native_Data_Set_Environment: Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.1.14362
Cross_Reference:

Citation_Information:

Title:

Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign

Online_Linkage: http://www.fs.uiuc.edu/cam/CAM/viii/viii-1.1.html

Cross_Reference:

Citation_Information:

Title:

University Copyright Policy (stated in the General Rules Concerning University Organization and Procedure, Article III, Section 4)

Online_Linkage: http://www.uillinois.edu/trustees/rules.cfm#sec34

Cross_Reference:

Citation_Information:

Title: University of Illinois Web Privacy Notice
Online_Linkage: http://www.vpaa.uillinois.edu/policies/web_privacy.cfm

Cross_Reference:

Citation_Information:

Title: ISGS Terms of Use
Online_Linkage: http://www.isgs.illinois.edu

Data_Quality_Information:

Lineage:

Process_Step:

Process_Description:

Oil and Gas well data were pulled from Oracle database. Points were manually verified, and those that did not previously have a FIELD_CODE value were assigned a FIELD_CODE, as appropriate, based on producing status and other information, such as point location and previously-compiled field data and maps.

Point shapefiles were created from the Oracle data, which for the creation of this polygon dataset, contained attribute FIELD_CODE for Oil wells, Gas wells, and Gas Storage wells.

Process_Date: 20020201

Process_Step:

Process_Description:

Point shapefiles of fields converted to coverages, then gridded in ArcGIS at: a) 1320' (40 acre) cell size for Oil/Gas wells, and b) 1866' (approx. 80 acre) for Gas Storage wells using item FIELDCODE, resulting in raster output of areas coded for item. Raster output converted to polygon shapefile (generalize lines) in ArcGIS, then to polygon coverage.

In Arc, "eliminate" polys where FIELDCODE = 0 and area AREA < 2400000 (slightly larger than grid cell size (sq.ft.) to account for single-cell "zero" outliers, but not large enough to eliminate larger, valid interior holes within the field outines). "Dissolve" polygon on item FIELD_CODE to clear small remnant polylines from previous. "Centroidlabels" moved labels closer to center of polygon. "Spline" arcs-- cartographic 'round-off' of corners, edges from 'generalize lines' step above. "Build" as polygon.

Post-processing: checked for valid and/or large fields with FIELDCODE = 0 (labels moved outside by the line splining step. Move label back into field polygons, and recode as necessary). Visually inspected for verification of field names, general acreages, and location of field outlines compared to source point data.

Add item FIELD_NAMES, relate names to master list by field_code, add names.

Add item FIELD_TYPE, code and verify values.

Combine Oil and Gas, and Gas Storage fields into one polygon file

Process_Date: 20020501

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 550

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 1.6666666666666668e-07
Longitude_Resolution: 1.6666666666666668e-07
Geographic_Coordinate_Units: Decimal Degrees

Geodetic_Model:

Horizontal_Datum_Name: D North American 1983
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: gisdb.OILGAS.IL_Oil_Gas_GasStor_Fields_Gen_2002_Py

Attribute:

Attribute_Label: OBJECTID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: FIELD_CODE

Attribute:

Attribute_Label: FIELD_NAME

Attribute:

Attribute_Label: FIELD_TYPE

Attribute:

Attribute_Label: SHAPE
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: Shape.STArea()

Attribute:

Attribute_Label: Shape.STLength()

Overview_Description:

Entity_and_Attribute_Overview:

Attribute items are in typical ARC/INFO feature class format. User-defined polygon attributes are:

FIELD_CODE - Updated irregularly, contact the ISGS for the complete list of names used in
this data file.
FIELD_NAME - Updated irregularly, contact the ISGS for the complete list of names used in
this data file.
FIELD_TYPE - Attributes based on major producing status:
Oil
Gas
Gas Storage

Entity_and_Attribute_Detail_Citation: none

Oil, Gas, and Gas Storage Fields in Illinois (2002)

Metadata: