Special Report: Leak-detection system designed to catch slow leaks in offshore Alaska line

Installation of the LEOS leak-detection system on the Northstar crude oil pipeline project in Alaska's Beaufort Sea was in response to a US Army Corp. of Engineers' requirement for a system to protect the subsea oil line against small, hard-to-detect leaks during winter months of continuous ice cover. Click here to enlarge imageThe system has been operating since Northstar began producing crude oil in October 2001. Search for system Click here to enlarge imageThe Northstar development project is the first crude oil production facility constructed 10 km (6 miles) offshore in the Beaufort Sea (Fig. 1). The project signified the start of a new era in offshore crude oil production,...

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