NGL Storage Facility

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NGL Storage Facility

NGL Storage Facility | Audubon Companies | Integrated EPC Services


A major oil & gas manufacturing and logistics company


Brazoria County, Texas

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.

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 1mile 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 & 7cavern 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