DR NEIL OVERY / SCIENCE PHOTO LIBRARY DR NEIL OVERY / SCIENCE PHOTO LIBRARY
Oil rig and drillship at sea. View of the Transocean 'Development Driller 1' semi-submersible drilling rig (left) with the Transocean Dhirubhai Deepwater KG1 drilling ship (right). Drilling ships (drillships) are used in exploratory offshore drilling of new oil and gas wells, or for scientific drilling purposes. Photographed off Cape Town, South Africa.
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