Health & Safety
have been opening, inspecting and testing heat exchangers at the Brazilian location. Tis process includes opening the equipment covers, removing the tubular bundle, measuring the thickness and performing a hydrostatic test and closing the equipment covers. Certain types of heat exchangers may require
up to three pressure tests on the hull, bundle and floating lid. Depending on the size and location of the heat exchanger, removing the bundle might only be possible with the implementation of a bundle-puller, a load-bearing device for bundles weighing less than five tonnes with a length of up to five metres and installed higher than ground level. Bundle-pullers reduce risks associated with this activity, such as danger to personnel and damage to equipment. For this reason SGS has developed its heat
exchanger life assessment system (HELAS). Tis allows quick and efficient inspection of heat exchangers in which corrosion is expected only on inside tubing. Data collected is directly analysed to produce a complete life time assessment of the inspected heat exchangers to include a wall thickness report. HELAS measures the ultrasonic immersion length converted into corrosion depth on the inside of cooling water and air fin tubes. Based on the highest value of corrosion measured, extreme value
analysis is performed to estimate the remaining life- expectancy of the heat exchanger by evaluating the maximum possible corrosion depth throughout the heat exchanger.
Preferred suppliers Finally, Wood Group has secured 11 new contracts in Africa totalling approximately US$240 million (€180 million). Wood Group PSN, which provides brownfield production services, won contracts to provide operations and maintenance and construction services to clients in Equatorial Guinea, Chad and Algeria. Wood Group GTS, specialists in rotating equipment solutions, has secured a long-term service agreement covering two GE Frame 9E gas turbines for an operator in Ghana. Wood Group Mustang, the process and facilities
group of Wood Group Engineering, is providing detailed engineering for wellhead platforms, a production processing platform and a living quarters platform for an offshore project in Angola. James Crawford, Wood Group PSN’s managing
director for Africa, said: “We are committed to building a sustainable business in Africa and are very clear about the countries and projects which we target, knowing where and how our expertise can enhance our customer’s operations. ●
For more information ✔ at
www.engineerlive.com/iog
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