Скачать или смотреть An Introduction to Natural Gas from Coal

Until recently, most natural gas in Canada came from what are referred to as "conventional" sources -- with the gas trapped under relatively high pressure in relatively loose formations which allowed the gas to move freely to the wellhead for production.

In recent years, however, production of natural gas from conventional sources here in Canada has fallen, despite record levels of drilling and completion. With demand for natural gas continuing to grow, additional sources of natural gas needed to be found and attention has turned, increasingly, to what are deemed "unconventional" sources of natural gas. Natural gas from coal, or coalbed methane, is the natural gas from unconventional sources most widely known. This video serves as a primer about this increasingly important source of natural gas.