NGL Storage Facility Expansion

Project overview

• Salt dome storage terminal expansion
• 2 underground NGL salt-dome storage caverns
• 2 MMbbl brine pond
• Brine de-gasification system
  • 9,200 GPM of brine flow
• Over 1 mile of pipeline
• 6 million barrels for underground NGL storage
• 2 motor control center buildings
• 14MW substation #2 – integrated to substation #1
• Bi-directional product manifold expansion for five pipeline & 7 cavern tie-ins
• Design capabilities
  • 6 MMbbl of NGL
  • Cavern depth: 4,500 ft.

Scope of work

• Facilities topsides design
• Process design
• Multidisciplinary engineering
• Electrical & control system design
• Procurement support
• TIC estimating
• PHA & LOPA reviews
• Survey
• 3D laser scanning

Project summary

Audubon supported the natural gas liquid (NGL) storage demand via a contract for a brownfield expansion of an NGL storage facility in Brazoria County, Texas.

The five cavern greenfield design and construction support for phase I was completed in 2014. Phase II included process design and engineering for the facility’s topsides, total installed cost (TIC) estimating, piping and instrumentation diagrams (P&ID), and process hazard analysis (PHA )and layers of protection analysis (LOPA) reviews.

Additional services included performing a front-end engineering design (FEED) study to determine the scope of work and EPC schedule and risk register.

The project schedule for the 6 MMbbl NGL storage project was accelerated and completed within 18 months.