External in-service inspection of crude oil tanks in KSA

External in-service inspection of crude oil tanks in KSA
March 20, 2020 lmk systems

HiSCS Inspectors accomplished successfully the external inspection, while in service, of three (3) crude oil storage tanks located in a desalination plant in the province of Jazan in the Kingdom of Saudi Arabia.

The inspection was in line with the American Petroleum Institute (API) 653 Standard “Tank Inspection, Repair, Alteration & Reconstruction” with a scope to establish the corrosion rates, the remaining life and verify the integrity and safe operation of the tanks.

A thorough visual inspection took place to foundation, shells, floating roof, appurtenances including all pipe networks, nozzles and valves as well as dump accessories and alarming systems.

Non-Destructive examination using MT, Thermography and UT technology including a crawler robot has been utilized to configure the minimum thickness of the shells and roof. Furthermore, a topographic survey analysis has been performed to record tanks settlement.

Tanks basic dimensions:

Diameter: 80.039m

Total Height: 23.6m

Capacity per tank: 110.534m3

The works have been accomplished by a team of Engineers, Inspectors, Surveyors, NDT technicians and assistants (in total 12) working continuously for a period of about 2 weeks in a demanding environment respecting work permits and safety inductions on daily basis. The relevant inspection and evaluation reports have been delivered to the Owner/Operator for further perusal and actions.

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