Gas Distribution Model
> Presented to the PODS Association
> Oct 28th, 2010
> Alicia Farag
Presentation Overview
> GTI Background
> GDM Drivers
> Scope
> Stakeholders
>Development Process
> Model Highlights
> Status
> Next Steps
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GTI at a Glance…
> Not-for-profit research,
with 65+ year history
> Facilities
─ 18 acre campus near Chicago
─ 200,000 ft2,
28 specialized labs
> $60+ million in revenue
Flex-Fuel
Test
Facility
> Staff of 250
> A growing business
Offices
& Labs
> Commercial partners take our
technologies to market
Energy & Environmental Technology Center
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Reducing carbon emissions to the environment
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Gas Distribution Model (GDM)
> Objective
─ Industry standard data model for natural gas distribution
assets and operations
> Benefits
─ Reduce cost and complexity of GIS and supporting
software integration
─ Increase interoperability and reduce customization
─ Facilitates electronic field data capture
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GDM Drivers
> Why do we need a standard data model for the
distribution industry?
─DIMP
─ Shift towards electronic data and field data capture
─ Models and software require lots of data
─ Various different gas distribution data models
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Applications for GDM
> Vendors
─ Software standardization, ease of implementation, interoperability
> Data Compilation
─ Combine data across different operations
─ Vertical integration of data across sectors
>Industry Benchmarks and Data Collection Initiatives
─ AGA, CGA, PPDC . . .
>Future Advancements
─ Smart phones
─ Smart tags
─ ASTM traceability standard
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Scope
>Phase I
─ Steering and Technical Committees
─ GDM Scope
─ Conceptual Model
─ Logical Model
─ Physical Model
─ Model Testing – Oracle and SQL Server
─ Documentation and Implementation Guide
─ Release v. 1.0
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Stakeholder Committees
> Steering Committee
Autodesk, ESRI, GE Smallworld, GTI, National Grid,
New Century Software, Sentinel USA, Structural
Integrity, Southwest Gas
> Technical Committee
ESRI, GE Smallworld, GL Noble Denton, GTI, New
Century Software, Sentinel USA, Opvantek, Southwest
Gas
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Model Highlights
> Features
─ Designed for Distribution and Transmission systems
─ Supports stationed and un-stationed pipe
(stationing is optional)
─ Similar design concepts as PODS
─ Oracle Spatial and SQL Server Spatial
> Uses geometry data types
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Key Concepts
>Pressure System
─ System of mains and related facilities fed by one or
more regulators
─ Each pressure system has an MAOP based on the
MAOP of components within the pressure system
─ Foreign key reference used instead of information on
individual pipe and component records
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Key Concepts
>Linear Referencing and PODS Compatibility
─ Distribution, transmission, and re-classifications
─ Vertical integration
─ Linear referencing but stationing is supported
─ Supports Line, Route, and Series tables
─ Adds EventRangeIndex table that eliminates the need
for Event and EventRange tables in PODS
─ Maintained outside of the user environment and
managed by application software
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Key Concepts
>Regulators and Regulator Stations
─ Various levels of detail
─ Single point with inlet/outlet pressure
─ More detailed information regarding internal piping
>Service Points and Meters
─ Link to meter is the CIS
─ Foreign key used to link meter to DeliveryPoint
>History Tracking
─ Non in-line history approach
─ Optional companion tables
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Gas Distribution Model
> Table Categories
─ Gas Pipe, Meta Data, Gas Systems, Tracer Wire
─ Pipeline Centerline, Casings, Crossings
─ Inspection and Maintenance
─ Valves and Fittings, Metering, Receipt Points,
Regulators
─ Conditioning equipment, Cathodic Protection
─ Class, Markers and Signs,
─ Stations and Vaults
─ Location and GPS
─ Leak and Incident Reports
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Status
>Logical and physical model complete
>Testing physical model in Oracle Spatial and SQL
Server
─ Using basic test data set – primarily core tables
─ Sample queries
>Developing an Implementation Guide
>Soliciting operator participants for pilot
implementations
>Soliciting commercializers
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Next Steps
> Complete testing
> Finish documentation
> Pilot projects with 1-2 operators
> Marketing and advertising
> Commercialization
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Acknowledgements
>Operations Technology Development (OTD)
> Steering Committee
>Technical Committee
APGA, Atmos, Autodesk, Centerpoint, Consolidated
Edison, Energen (Alagasco), Entergy, ESRI, GE
Smallworld, GL Noble Denton, National Grid, New
Century Software, Opvantek, OTD, PECO, Sentinel
USA, Structural Integrity, Southwest Gas
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Questions?
> Alicia Farag
> 847-544-3492
> alicia.farag@gastechnology.org
> www.gastechnology.org