The Largest Gas Find in Northern Europe — The Untold Story of Troll

Sixty-five kilometres west of Bergen, beneath three hundred metres of turbulent North Sea water, lies the Troll field, the largest offshore gas reservoir in Northern Europe. Why did extracting this colossal energy reserve require building the tallest concrete structure ever moved by humanity? Formed over one hundred and fifty million years ago in Late Jurassic rift basins, the reservoir traps vast volumes of recoverable gas beneath an impermeable cap of Cretaceous shale. For decades, early explorers overlooked its true potential, assuming the complex fault blocks of block thirty-one contained only water-wet sands. This documentary traces the geological history, the seismic surveys of the nineteen-seventies, and the engineering milestones required to unlock the North Sea's greatest hidden energy asset. Which mine, quarry, or deposit near your home has always made you wonder what lies beneath the ground? Troll field, Norway, North Sea, natural gas, Sognefjord sandstone, Troll A platform, Kollsnes, offshore energy, geology, subsurface deposit