See Ombugge's right.
If American OSVs where built to an International standard with Ice Class, saunas, bidets, and vibrating leather recliners, the government would want to convert them for scientific use, he'll maybe even the USCG would want them. But since American OSVs are just crude and cheap fuel inefficient ugly barges with a pilothouse, they re not suitable for conversion to scientific or government operations.
While some of the major players in the bayou did not build a boat unless it had a solid contract that would pay for it, most of the bayou boys grossly overbuilt boats that were fast and cheap to build locally chasing quick profits on fast oil money.
The oil money became too fast and slippery for them to catch. Now they are stuck with the boats until the banks take them. The boats were not built with any kind of a backdoor strategy or with the kind of quality or features that would make them suitable for conversion to alternative uses, if, actually everyone knew it was when, not if, the oil patch collapsed again.
The excess nearly new Gulf OSVs stacked in the bayou will eventually be sold for a dime on the dollar to the surviving big OSV operators when the next oil patch upturn comes along.