Safety is of paramount importance to the oil & gas industry, but in a competitive commercial environment this has to be achieved in a cost-effective manner.
The range of services offered by FCL can assist in achieving this aim in a number of ways: by the timely production of a high quality mechanical design package for new-build equipment; the execution of fitness-for-service assessments for damaged in-service equipment, which can avoid the need for costly unscheduled plant shutdown; the assessment of plant modifications to permit waiver of hydrotest, which can offer a very significant benefit to project schedules and costs.
FCL have a number of long-standing client relationships in this sector, including a major supplier of subsea flanges for whom we have provided a full flange design capability and other support services for over fifteen years.
Case studies covering some of the work that we have carried out in the oil & gas industry can be viewed by clicking on the links below.
FAQs
Added January 2026.
We offer a range of services, including the production of high quality mechanical design packages for new-build equipment, the execution of fitness-for-service assessments for damaged in-service equipment, and the assessment of plant modifications to permit waiver of hydrotest..W
A fitness-for-service assessment is a specific type of structural integrity assessment, focussing on the adequacy of a piece of existing equipment for continued service following the discovery of damage. The most common forms of damage investigated include corrosion and cracking.
Code rules normally mandate that a repeat hydrotest be performed after completion of any modification work carried out on a piece of pressurised equipment. Although this requirement may be of little consequence for small items of equipment that may be easily isolated, the costs and timescales incurred in the testing of large items of equipment can be very significant. In these cases, the preparation of a fitness-for-service assessment can represent a highly attractive alternative if this provides sufficient additional confidence in the design to permit the hydrotest requirement to be waived.
Yes, we have significant experience in re-rating existing pressure vessels and columns. This can be necessary to permit contined operation following the discovery of damage (life extension) or to accommodate a change in process conditions which may be necessary to increase plant capacity.
Yes, FCL have provided engineering support services to a major supplier of subsea flanges in the oil & gas industry for several years. While we have more limited experience in subsea separation systems, our core areas of expertise are equally well suited to the design of such systems.
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