Flotel

Flotel, a portmanteau of the terms floating hotel, refers to the installation of living quarters on top of rafts or semi-submersible platforms.Flotels are used as hotels on rivers or in harbour areas, or as accommodation of working people, especially in the offshore oil industry.
See more at Wikipedia.org...

flotol 弗洛脱尔

n. anchored oil rig or vessel that serves as accommodation and lodging for offshore workers

(名) 海上労働者のために住居として使われる油田掘削施設または船

flotel
m.
（海上鑽井）住宿平台