review: with the winter gas peak, part of the natural gas supply shortage, in order to ease the security for the pressure in the oil plan since November 20th raised the non resident natural gas price 10%-20%. insiders said that the winter supply tension under the peak gas price increase is the market the behavior of upstream and downstream enterprises, enterprises need to fully negotiate prices.

Natural gas is referred to as the existence of mixed gas in underground rock reservoir with hydrocarbon as the main body, the proportion of about 0.65, lighter than air, colorless, tasteless, non-toxic and has the characteristics of.

The main component of alkane gas, including methane accounted for the majority, there is a small amount of ethane, propane and butane, in addition there are hydrogen sulfide, carbon dioxide and nitrogen and water vapor and a small amount of carbon monoxide and trace rare gases, such as helium and argon.