I used to drive a submarine for a living in the Navy. We had extremely sensitive and sophisticated sonar systems.
The sonar was used to search for the bad guys, of course. But, it was also used for ship safety reasons. If you brought the sub up to periscope depth or surfaced it, you wanted to be sure that the area was clear of any ships before you came up.
The sonar system also detected all the ocean life underwater. You could hear humpback wales during the whale season of winter in Hawaii.
You could hear the squeals of dolphins and porpoises.
One of the most interesting sounds, in my humble but accurate opinion, was the popping sound made by the shrimp. These snapping shrimp would create an orchestra of pops and snaps that would pour through the speaker and display as brightly colors lines on our sonar screens.
When performing a frac sand crush test, the sand makes almost exactly the same noise when at high pressure.
I hear pops, snaps, and crackles. Tiny noises coming from my press that’s under thousands of pounds of pressure. Brings me back to my Navy days!
Anyway, the crush test is one of many tests that we perform on proppants here at Global Energy Labs.
We specialize in accurate results and fast test turnaround.
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