Mined shale gas unconventional gas resources

Shale gas is mined from shale out of a very important unconventional gas resources. Shale gas formation and enrichment has its own unique characteristics, often larger thickness distribution in the basin wide distribution of hydrocarbon source rock shale formations. Compared to more conventional natural gas, shale gas development has a long mine life and long production cycle advantages, most extensive Shale gas revolution production distribution, large thickness, and generally contain gas, which makes shale gas wells can be long-term in order to stabilize the rate of gas production. Shale gas, a kind of free or adsorbed state hiding in shale or clay formations in unconventional days. petroleum proppant and natural gas, are becoming agitated world market forces. This is called the international energy community "game changer" gas, which greatly changed the energy landscape of the world. Especially occur in unconventional shale gas. Also an dense shale rock, it can also be classified as tight gas gas. Industrial development is only achieved success in North America (mainly the United States). It began in the Devonian ceramic proppant suppliers of the Appalachian Basin, is dark brown and black, rich in organic matter, can be a lot of angry. Cracks in the main reservoir space, and in the form of water-soluble gas and adsorbed gas occurrence, for low (negative) pressure, low saturation (about 30%), and thus to low yield. But in the fracture zone will receive a higher yield, underground explosions and reform measures, such as the effect of fracturing or. The mid-1990s, has been expanded to Michigan and Illinois basins, producing layer expanded to the Lower Carboniferous shale, production reached 8.4 billion cubic meters. Its resources up to several trillion cubic meters. Sinopec in eastern northeast drilled five appraisal wells, including two wells to obtain industrial air, preferably a building block of South Yellow equality favorable. CNOOC in regions to carry out preparatory work for shale gas exploration. Petroleum three continental shale gas wells to obtain discovery. United Coal in Basin proposed and three shale gas favorable areas.