Natural gas can be found in the reservoirs of the earth's crust and can be burned to produce energy. Natural gas reservoirs often also contain oil and water.
Natural gas is highly flammable, burns almost completely and is considered a clean fuel, as it doesn't produce any ash, dust or smoke. When natural gas burns efficiently in the air it produces energy, water and carbon dioxide. Natural gas produces less than half the carbon dixoide of coal.
Once it has been processed to remove impurities, natural gas is colourless and odourless. Because processed natural gas may have no smell, a tiny amount of a strong smelling chemical (that smells a bit like rotten eggs) is added. This is a safety measure so gas can be detected easily if there is a leak.
What is gas?
Natural gas is a made up of a mixture of hydrocarbons – mainly methane. Here’s a brief explanation of what gas is and where it comes from.
Exploring for gas
Exploring for reserves of gas and oil involves patient work from a wide range of experts.
Rockgas LP Gas or LPG (Liquefied Petroleum Gas) is a mixture of propane and butane, two gases with different characteristics that offer different benefits. If you thought gas wasn't an option for you because you don't live on or near a gas mains system, Rockgas may be the answer.
How gas gets from the source of production to your home or business.
New Zealand gas industry
A brief look at the history and structure of the New Zealand gas industry.