sentences:  After more than a decade working in the harsh North Atlantic, the Schiehallion FPSO was in a poor condition, and required significant maintenance and repairs, which could only be performed in the summer season because of the hostile weather in the region.The increased water production was affecting the composition of the production fluids, and the FPSO processing system was becoming very constrained by the high water volume.As a consequence, Production was suspended at the start of 2013 to allow preparation for a £3 billion redevelopment of the greater Schiehallion field area.