Oil rig inspection is a dangerous business. Traditionally roughnecks dangled from a wire, in gale-force winds if needed, to manually log wear and tear on the girders. Assessments include giant chimneys — called flare stacks — that belch fire during million-dollar-a-day shutdowns. Increasingly the industry has found that swapping abseiling humans for small drones equipped with high-definition and thermal cameras can save time, cut costs and improve safety.
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