CASE STUDY / 2024
LNG Liquefaction — Train 3 Expansion
- US Gulf Coast
- 2024
- Vendor inspection · Welding audit · Construction monitoring · Pre-commissioning
SCHEMATIC
What PSG covered
THE BRIEF
What the client needed
A US Gulf Coast LNG operator approached PSG mid-procurement on the third liquefaction train of an existing facility. The owner had been burned on Train 2 with welding rework discovered post-shipment of two heat exchangers; the EPC schedule for Train 3 had no slack for repeat findings. The owner needed an Approved Agency engagement that ran upstream of the fabrication shops, through construction, and into commissioning.
PSG'S APPROACH
What we did, in order
- 01
Inspector deployment across six fabricators in three countries — vendor pre-qualification audits in the first two months, then continuous source inspection during fabrication.
- 02
Welding program audits at each fabricator, including review of WPS/PQR documentation and witnessing of welder qualification tests against ASME Section IX and AWS D1.1.
- 03
On-site construction monitoring for the duration of the field campaign, with daily field reports filed by 1900 local time and weekly stakeholder summaries published Mondays.
- 04
Pre-commissioning support: system sterility verification, mechanical completion audits, electrical and instrumentation calibration check-out, equipment troubleshooting during start-up.
OUTCOMES
What the engagement delivered
- 117DEFECTS CAUGHT AT VENDOR BEFORE SHIPMENT
- 0FERC FINDINGS ON COMMISSIONING
- 14 daysAHEAD OF REVISED COMMISSIONING SCHEDULE
- 6FABRICATORS AUDITED
RELATED
Pillars and industries that touch this work
SERVICE PILLARS
INDUSTRIES
VERIFIED BY
Manisha Sharma, Project Lead · PE Texas · 20+ years LNG
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