CHRIS KNAPTON / SCIENCE PHOTO LIBRARY CHRIS KNAPTON / SCIENCE PHOTO LIBRARY
Gas well-head. Men working on a gas well-head. This receives natural gas from pipes drilled to underground reservoirs. The gas will be refined and piped around the country for use as a fuel. It consists mostly of the gases methane and ethane. Photographed on the east coast of Lincolnshire, England.
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