Kōrero: Oil and gas

Porous sandstone

Porous sandstone

In this slice of sandstone there are many gaps between the sand grains, making the rock porous. As the gaps are connected, the sandstone is also permeable: any liquid or gas held in the rock can move through it. Rocks that are both porous and permeable are ideal reservoirs for storing oil and gas underground.

Te whakamahi i tēnei tūemi

GNS Science
Photograph by Nick Mortimer

Permission of GNS Science must be obtained before any use of this image.

Ngā whakaahua me ngā rauemi katoa o tēnei kōrero

Te tuhi tohutoro mō tēnei whārangi:

Roger Gregg and Carl Walrond, 'Oil and gas - How oil and gas form', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/photograph/9758/porous-sandstone (accessed 24 February 2020)

He kōrero nā Roger Gregg and Carl Walrond, i tāngia i te 12 Jun 2006