Underground Gas Storage Integrity Management

UNDERGROUND GAS
STORAGE INTEGRITY
MANAGEMENT
OUR SOLUTIONS
In response to recent industry events, natural gas
storage operators are seeking a comprehensive
approach to assess the integrity of their storage
facilities. Recently published API 1170 and 1171
Recommended Practices, as well as PHMSA
Advisory Bulletin ADB-2016-02, provide guidance
to operators when developing and implementing an
Underground Gas Storage Integrity Management
Program.
EN Consulting has the experience to design
integrity programs including risk assessment,
preventive and mitigative measures, continual
monitoring, physical assessment, and data
management. EN Consulting also offers design
services for above and below grade facilities,
maintenance, and remediation.
INTEGRITY RISK MANAGEMENT
EN Consulting’s team of code compliance, integrity
management, and gas storage specialists evaluate
existing integrity programs and recommend
adjustments to comply with API Recommended
Practice Documents and PHMSA Advisory
Bulletins.
Overview
• Gap analysis against requirements of API 1170,
1171, and other industry documents
• Recommendations on how to modify existing
programs to further enhance integrity
management principles and/or maintain
regulatory compliance
• Procedure review and development
• Data collection, record retention, and
performance metrics
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System Baseline
• Data collection
• Service pressure rating verification and
documentation
Risk Management
• Threat identification
• Risk prioritization
• Remediation and reassessment triggers
INTEGRITY VERIFICATION AND
MONITORING
EN Consulting assists with the ongoing evaluation
and monitoring of gas storage wells and reservoir
fluids.
Ongoing Risk-Based Evaluations
• Data integration and analysis
• Updates to threat and risk evaluations
Corrosion Control
• Corrosion testing of fluids
• Casing Potential Profile tool support
• (E-Log I) and interference testing
• CP system design and remediation
Metallurgical Analysis
• Materials assessment
• Fitness-for service
• Mechanical inspection analysis
• Metallurgical failure analysis
GAS STORAGE OPERATIONS
New regulations could impact gas storage
operations from a standpoint of work prioritization,
documentation, well configuration, and
remediation requirements. EN Consulting’s
experienced engineers assist with operation
planning, program implementation, and project
detailed design that address these needs.
Program Development
• Well workovers and remediation programs
• Injection and withdrawal programs
• Well logging programs
• Drilling and completion programs
• Emergency response plans
Engineering
• Pressure drawdown and buildup testing
• Gas volume calculations
• Flow erosion and hydrate potential at operating
conditions
• Produced fluid production analysis and volume
control
Design Capabilities
• Wellhead maintenance and modifications
• Gathering systems
• Gas processing facilities
GIS Analytics & Mapping
• 3D geographically referenced modeling
• Database asset management and analysis
www.entrustsol.com