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Managing Enterprise Land Assets Using GIS
Continued...

Drilling Unit Analysis allows the user to define an AOI, finds all leases as well as mineral leases or fee simple holdings with a Burlington interest, and computes the area of overlap between each lease and the AOI. The components of gross working interest and net revenue interest for each product type are then retrieved for each lease and summed up for the entire AOI in proportion to the overlap area.

Stacked Polygon Analysis checks all lease, mineral lease, and fee simple polygons within a user-defined area for possible overlap. The company acreages, working interests, and revenue interests are then summed up within each group and represent the total company interest in a particular formation for a certain piece of land. It may be possible for several leases to overlap and contribute to the total interest.

Imagery Management--The use of imagery can greatly enhance interpretation, analysis, and presentation of an area. An image manager was designed for browsing and retrieving appropriate imagery over the viewing area. This imagery could include color infrared digital orthophoto quarter quads (DOQQs) in MrSID file format, scanned United States Geographic Survey (USGS) topographic quadrangle digital raster graphics (DRGs), and false color Landsat TM tiles.

The imagery sets vary in size. Some sets have only a few individual tiles. Other sets have thousands of tiles. The PLAT Imagery Manager hides this information from the user and provides automatic metadata information about the image properties. The user has easy access to the date the imagery was collected, resolution data, and imagery type. In addition, PLAT Imagery Manager dynamically verifies that an image set is coincident with the current map view coordinates. Map projection issues are managed on the fly so the view is automatically adjusting to match the coordinate system of the selected imagery.

Data Exchange--The system provides a custom interface for exporting any spatial theme to a Z-Map compatible file. This provides a simple method of transferring culture data from a GIS environment to a 3D environment.

Automated Mapping--Users can increase productivity by spending less time creating maps. This is accomplished by using custom-defined mapping templates stored in ArcView object database files. The user who wants a hard-copy map of the current view can select a custom template through the mapping interface, and the predefined templates provide automatic scaling, legend, watermark, and user information.

Summary

PLAT is an IT-based GIS solution that to provides access to multiple enterprise databases through a unified desktop GIS. The solution was developed as a modular extension to Esri's ArcView 3.2 using ODBC to connect to a variety of enterprise data sources such as shapefiles, coverages, SDE layers, and ODBC-compliant databases. This connection method utilizes the Application Meta-data Layer (AMD) which describes the appropriate business data (e.g., leases, wells, and culture) with business logic from multiple databases. The ability to combine business logic with multiple spatial and attribute data sources provides a powerful enterprise tool for the effective management of land assets through a unified desktop GIS.

About the Authors

Michael Tepera received a bachelor of science degree in geography from Texas A&M University. He has developed Esri-based GIS solutions for both the public and private sectors for the past eight years. A senior GIS consultant for Idea Integration in Houston, Texas, he serves as the lead developer in migrating the PLAT solution to an ArcGIS interface.

Todd Buehlman, who holds a bachelor of arts degree in geography with a focus in GIS from the University of Tennessee at Knoxville, received his training in both GIS and Avenue programming from Dr. Bruce Ralston, the geography department chairman. He is working extending ArcGIS technology using ArcObjects with Visual Basic to access customized enterprise and personal geodatabases. He is also a senior GIS consultant for Idea Integration in Houston, Texas.

Acknowledgments

The authors thank the knowledgeable Burlington Resources staff for their commitment to the project and valuable input. In addition, this project could not have been successfully completed without the dedicated leadership of Andrew Conacher, our solutions manager, and our project manager, John Martinez. The authors also thank Ivan Gatchik for countless hours of work on Fetcher and Barbara Skelly for her understanding of complex database issues.

For more information, contact

    Michael Tepera
    GIS Consultant
    Idea Integration
    Tel.: 800-685-5562
    Fax: 713-626-2792
    E-mail: michael.tepera@idea.com

    Todd Buehlman
    GIS Consultant
    Idea Integration
    Tel.: 800-685-5562
    Fax: 713-626-2792
    E-mail: todd.buehlman@idea.com

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