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James W. Sewall


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Oil & Gas

Under pressure to meet federal mandates, to preserve pipeline assets, and to protect the public, pipeline operators face a range of technology challenges, from collecting, maintaining, and integrating pipeline data to implementing risk assessment, mitigation, and accident control. Sewall offers innovative and time-tested solutions to managing integrity that balance multiple needs for GIS and asset maintenance consulting, spatial data development, and pipeline software.


  • Business case development
  • Industry analysis/needs assessment
  • System selection and design
  • System implementation planning
  • Operational risk assessments
  • Site development, design, and permitting


  • Aerial imagery and field data acquisition
  • Landbase mapping and digital orthophotography
  • Data conversion and integration
  • Linear referencing
  • Database integration
  • Data quality control


Sewall licenses and maintains an industry-standard suite of software tools for pipeline integrity management and customizes solutions to meet specific client needs:

  • ASGPipelineTM Generation 3.0
    Automated alignment sheet generation (product sheet.pdf)
  • ClassLocatorTM
    Analysis of systems classification using sliding mile calculation (product sheet.pdf)
  • HCACalculatorTM
    Analysis of high consequence impact areas (product sheet.pdf)
  • RiskCalculatorTM
    Relative risk ranking of system threats using Muhlbauer Method (product sheet.pdf)

Users of our software and systems have fast, reliable technical support through Sewall Helpdesk.


More info

Related Services

Remote sensing

Geospatial solutions

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Clarence Young
Director of Sales & Services
Energy Delivery & Telecommunications Systems
207 827 4456

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