Industries/Storage Tanks & Terminals
Storage Tank & Terminal NDTShell, floor and annular plate welds, thickness surveys and terminal piping — measured, mapped and documented.
Prime Inspections covers weld, piping and tank inspection for storage tanks, terminals and the piping that runs between them — aboveground storage tanks in refinery and terminal service, cryogenic storage at LNG facilities, and the transfer and loading piping that connects the tank farm to the line, the rack or the dock.
On a tank the question is almost always the same: how much steel is left, and is the weld sound. We measure it, map it and document it. Prime supplies the measured data and the map; the fitness-for-service decision stays with the operator.
- Shell & floor
- Annular plate
- Nozzle welds
- Thickness surveys
- Terminal piping
What we inspect
The tank, the welds that hold it and the piping that fills and empties it.
Shell, floor & annular plate
Floor and shell UT thickness surveys, MT, and welded-seam inspection supporting API 653 tank inspection programs, with radiographic and ultrasonic inspection of shell, annular plate and nozzle welds.
Cryogenic storage tanks
Full NDT inspection of LNG storage tanks including RT, UT and MT on shell, annular plate and nozzle welds — examined to the tank's governing construction code, API 620 (low-temperature annex) / API 625, with NFPA 59A governing the facility.
Terminal, transfer & loading piping
PAUT, AUT and radiography on transfer lines, terminal headers and loading piping — ASME B31.3 for new construction, API 570 for in-service piping — up to and including the loading arms.
Corrosion mapping
Phased-array corrosion mapping where remaining wall thickness and pit depth have to be measured and recorded, with a C-scan corrosion map documented for the operator's integrity program.
Why tank and terminal operators choose Prime
Data, not opinions
Remaining wall thickness and pit depth are measured, positioned and recorded, and the C-scan map goes into the operator's integrity program. We supply the measurement; the fitness-for-service call stays with the owner.
One crew, every method
The same mobilization that brings radiography brings encoded phased array, UT thickness surveys, MT, PT and VT — so a shell survey, a nozzle weld and a transfer-line tie-in do not need three vendors.
Built for the outage window
Tank and terminal work is scheduled around shutdowns and turnarounds. Crews are scaled to the window, with 24/7 response from our offices in Katy and Lubbock, Texas plus field locations nationwide.
Audit-ready documentation
Every weld and component reported against the governing code — API 653, API 570 or ASME B31.3 — ready for the inspection department's file.
Codes of record
In-service aboveground storage tank programmes follow API 653; in-service piping inspection follows API 570; new construction piping follows ASME B31.3, and liquids transfer piping tied into a pipeline system follows ASME B31.4. LNG storage tanks follow their construction code — API 620 (low-temperature annex) / API 625, with NFPA 59A governing the facility — and pressure vessels follow ASME Section VIII. Examination requirements come from ASME Section V; the acceptance criteria are whatever your project specification names.
Methods we run on this work
Frequently asked questions
What storage tank inspection does Prime perform?
Floor and shell UT thickness surveys, MT, and welded-seam inspection supporting API 653 tank inspection programs, plus radiographic and ultrasonic inspection of shell, annular plate and nozzle welds.
Are you API 653 certified inspectors?
No. Prime performs and documents the nondestructive examination — thickness surveys, weld inspection and corrosion mapping — in support of your API 653 tank inspection program. The certification, the evaluation and the fitness-for-service decision stay with the owner and their API inspector.
Do you inspect cryogenic and LNG storage tanks?
Yes — full NDT inspection of LNG storage tanks including RT, UT and MT on shell, annular plate and nozzle welds, examined to the tank’s governing construction code: API 620 (low-temperature annex) or API 625, with NFPA 59A governing the facility.
Can you inspect the terminal piping as well as the tank?
Yes. PAUT, AUT and radiography on transfer lines, terminal headers and loading piping up to the loading arms — ASME B31.3 for new construction, API 570 in service, ASME B31.4 where the line ties into a liquids pipeline system.
Do you do corrosion mapping on tanks and terminal piping?
Yes — phased-array corrosion mapping with remaining wall thickness and pit depth measured and recorded, and a C-scan corrosion map documented for the operator’s integrity program.
What code do you report against?
API 653 for in-service aboveground storage tanks, API 570 for in-service piping, ASME B31.3 for new construction piping and ASME Section VIII for pressure vessels — as your project specification calls out.
Can you work during a shutdown or turnaround?
Yes. Tank and terminal work is normally scheduled around shutdowns and turnarounds, and crews are scaled to the window with 24/7 response.
How do I get a quote?
Use our contact form or call (281) 944-3840 with the tank or terminal scope, the service and the governing code, and our team will follow up.
Tank or terminal programme coming up?
Tell us the scope, the service and the window — we will put certified crews on it.