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Comment by brianmwaters_hn

Okay, I used to actually do inspections on oil refineries and wind turbines using rope access techniques, so I think this is a good one for me to chime in on.

In rope access, we like to pride ourselves on being the technology that can get the job done faster, safer, and more flexibly than older methods (say, scaffolding or boom lifts). I kind of see drones as having the same advantages, but squared - kind of like LED light bulbs compared to CFL's, compared to incandescent.

However, this Bloomberg article doesn't mention any of the downsides of drone inspection. Last time I checked (and I've been out of the industry for about a year), there were concerns over the quality of the photos taken by drone teams, although there is room for the technology and the skills get better there fast. The real caveat here, though, is the limited usefulness of visual inspection in an oil and gas environment. Most of the work done on-rope is UT (ultrasonic testing), which requires hands-on contact with the structure, and RT (radiographic testing), which involves lethal doses of radiation aimed in specific directions. Obviously, this would be wildly dangerous from an aircraft, and will probably never happen regardless of technology.

So I see a place for drones today in visual inspection of equipment while it's online, but I can't imagine a near-term drone-based technology that would be able to carry out UT. So us rope guys will be in business for a while longer.

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