NASA scientists performed the tests as part of a research project, known as Clear Gulf, conducted by NASA’s Johnson Space Center and Astro Technology.
The two organisations partnered in 2013 to develop and test subsea monitoring clamps applied to offshore platforms using a unique underwater adhesive. However, with the newly developed friction clamps, they hope to achieve the same strong coupling and monitoring without adhesive.

“In an ideal situation, a pipe or platform leg is able to be cleaned and adhesive applied by a professional diver,” said David Brower, president and CEO of Astro Technology. “Of course, that’s not always feasible. Our new friction clamp will allow sensory systems to monitor equipment at a greater range of depths and in various conditions.”

Three tests were performed on the friction clamps: tensile load tests, compression tests and four-point bending tests. Throughout all the tests, the clamp remained coupled to the pipe and it is believed that, based on these results, the clamps could be installed at depths of up to 10,000 feet, a depth beyond the reach of divers.

Deepwater systems would be installed via remotely operated vehicles and maintained by Astro Technology developed miniature subsea robots.

“In 2000, I was part of the team that designed NASA’s Robonaut,” said Mr Brower. “Now, we’re seeking to bring the same long-distance dexterity from outer space to subsea.”

He added: “The subsea monitoring systems developed by Astro Technology allow decision-makers topside to detect problems almost instantaneously. Miniature subsea robots will take this one step further, allowing problems to be repaired as swiftly as they are discovered.”

Further testing at Johnson Space Center is planned, followed by tests in the field.