Natural gas well. Cut-away 19th century artwork of a natural gas well. To reach the natural gas (9) several layers have to be drilled through. These include the soil (1), limestone rocks (2) and various shales (4-7). Image from 'La Science Illustree' Louis Figuier (1895). | |
Licence : | Droits gérés |
Crédit : | Science Photo Library |
Model Release : | Non requis |
Durée : | 21 Secondes |
Aspect ratio : | 16/9 |
Restrictions : | - |