Gas and oil deposits. Artwork of a section through the Earth's crust showing gas and oil deposits. Near the surface is a seam of coalbed methane (black),a form of natural gas. A seal (light grey) of impermeable rock is acting as a barrier to the escape of gas (orange) and oil (green) reservoirs beneath it. Also present are areas (darker) of tight sand gas,that is gas trapped in unusually impermeable and non-porous rock. The dark grey seam is a gas-rich shale deposit. Tight sand gas and shale gas are both difficult to extract. However,their extraction is becoming increasingly viable as fossil fuel prices rise | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / JOSE ANTONIO PEÑAS |
Bildgröße: | 4000 px × 2425 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |