The terms acid gas and sour gas are often incorrectly treated as synonyms.

Thus, carbon dioxide by itself is an acid gas but not a sour gas.

But, sour natural gas must be cleaned before it can enter a long distance pipeline.

It removed hydrogen sulfide by exposing the sour gas to dissolved soda ash.

In 1982, the company was drilling a sour gas well, which blew wild.

Today, operators are required to ignite the well quickly in the event of a major sour gas blowout.

Combined, these additional costs can range from $250,000 to $500,000 for a single deep sour gas well.

Because of the costs and dangers involved in developing sour gas, producers in the past had often shut in these discoveries.

The sour gas might then be provoking hallucinations and insanity in the group.

When the product is sour, the barrel should be evacuated to a flare system where the sour gas is burnt.