Keywords
Theme:
directionals, boreholes, wells, Earth Science Associates, GOMsmart, GOM3, GOM-Cubed
Place:
Gulf of Mexico, GOM, USA
Stratum:
Offshore
Temporal:
1947 to Present
Description
Abstract
For slightly less than half of the boreholes, directional surveys are available. For nearly all the remaining boreholes, "pseudo" directional surveys have been estimated that connect the surface location to each completion and to the bottom hole location. Some wells only have surface and bottom hole locations. These are used in plotting spider diagrams.
The Public Information report contains the original submitted grid north reference azimuth, inclination angle, and MD values; as well as calculated DX, DY, and TVD values.
Purpose
Analysis for oil and gas exploration and production in the Gulf of Mexico.
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Status of the data
Complete
Data update frequency:
Monthly
Description:
publication date
Publication Information
Who created the data:
US Minerals Management Service, Earth Science Associates
Series name:
BOEM Website/BOEM Atlas Series/Public Sources
_________________
Data storage and access information
File name:
direct
Type of data:
vector digital data
Location of the data:
http://www.boem.gov
Data processing environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcGIS 9.2.0.1324
Size of the data:
175.76 MB
Data transfer size:
175.76 MB
Constraints on accessing and using the data
Access constraints:
Licensed GOM-Cubed Users
Use constraints:
License Terms under GOM-Cubed license agreement
Details about this document
Who completed this document
DBA
Earth Science Associates
mailing and physical address:
4300 Long Beach Blvd., Suite 310
Long Beach, CA 90807
USA
(562) 428-3181 (voice)
contactesa@earthsci.com
Hours of service:
9-6 Pacific Time (Monday - Friday)
Standards used to create this document
Standard name:
FGDC Content Standards for Digital Geospatial Metadata
Standard version:
FGDC-STD-001-1998
Time convention used in this document:
local time
Metadata profiles defining additonal information
ESRI Metadata Profile:
http://www.esri.com/metadata/esriprof80.html
Horizontal coordinate system
Geographic coordinate system name:
GCS_North_American_1927
Details
Geographic Coordinate System
Latitude Resolution:
0.000000
Longitude Resolution:
0.000000
Geographic Coordinate Units:
Decimal degrees
Geodetic Model
Horizontal Datum Name:
North American Datum of 1927
Ellipsoid Name:
Clarke 1866
Semi-major Axis:
6378206.400000
Denominator of Flattening Ratio:
294.978698
Altitude System Definition
Resolution:
0.000000
Encoding Method:
Explicit elevation coordinate included with horizontal coordinates
Depth System Definition
Datum Name:
Mean sea level
Distance Units:
feet
Encoding Method:
Attribute values
_________________
Bounding coordinates
Horizontal
In decimal degrees
West:
-97.2029017
East:
-83.3982465
North:
30.1965587
South:
25.999996
In projected or local coordinates
Left:
-97.2029017
Right:
-83.3982465
Top:
25.999996
Bottom:
30.1965587
Vertical
Minimum elevation:
-29680
Maximum elevation:
-199
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Lineage
FGDC lineage
Process step 1
Process description:
The Directional Survey Lat/Lon pairs and TVD were run through ArcGIS to create polylines.
Who did this process
DBA
Earth Science Associates
mailing and physical address:
4300 Long Beach Blvd., Suite 310
Long Beach, CA 90807
USA
(562) 428-3181 (voice)
contactesa@earthsci.com
Hours of service:
9-6 Pacific Time (Monday - Friday)
Process step 2
Process description:
ESA downloaded the original file from BOEM. The data were then cleaned and formatted. A new mdb was generated and a shapefile created.
Process step 3
Process description:
Dataset copied.
Source used:
F:\Backup\Metadata_xmls\Patrick\XMLs_incomplete\direct.shp
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Spatial data quality
Horizontal positional accuracy
BOEM data checked for obvious errors in entry. ESA calculated values checked for quality.
Vertical positional accuracy
BOEM data checked for obvious errors in entry. ESA calculated values checked for quality.
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Spatial data description
Vector data information
ESRI description
direct
ESRI feature type:
Simple
Geometry type:
Polyline
Topology:
FALSE
Spatial Index:
TRUE
Linear referencing:
TRUE
SDTS description
Feature class: SDTS feature type, feature count
direct:
String