Complex sentence: The planning and preliminary designs envisaged the refinery, a single-point offshore mooring (in the form of a floating buoy), pipe line in association with an off shore terminal provided with pipelines and pumping stations.
Split into simpler sentences: The planning and preliminary designs envisaged the refinery as a single-point offshore mooring in the form of a floating buoy. There is also a pipeline in association with an off shore terminal, equipped with with pipelines and pumping stations.