Shale gas is mined out from shale gas

Shale gas is mined out from shale gas, shale or dark subject at high carbon shale, the shale gas is adsorbed on the body in order to exist in the free state or shale, high-carbon mudstone, shale and pink sandwich on sandy rocks in natural gas, which can generate various stages proppant production of organic causes the body to free gas phase (about 50%) present in the cracks, porosity and other reservoir space to adsorption state (about 50%) exists in kerogen, clay particles and pore surface, a very small amount is stored in a dissolved state kerogen, asphaltene and petroleum. Natural gas is also present in siltstone, silty mudstone, muddy siltstone sandwich-like, or even sandstone formations. After gas generation, the nearest gathered in the source rock, showing typical. Shale gas exploitation in situ reservoir model, the Fracturing proppants difference with the oil shale, oil sands, bitumen and other large. Conventional reservoir gas reservoir is different, both shale gas generated source rocks, but also gather and save gas reservoir and cap rock. Therefore, the organic matter content of the black shale, mudstone and other high-carbon is often the best conditions for the development of shale gas. Shale gas development has a wide range of geological significance, is present in almost all of the basin, but due to the depth of burial, gas saturation and other large differences with different industrial value respectively. Fractured shale gas Chinese traditional sense, shale oil and gas reservoirs, fractured shale reservoirs, fractured reservoirs, etc. roughly equivalent to this, but did not consider frac proppant the mechanism of adsorption is not considered one of the native properties of natural gas, and in understanding the body is gathered in the cracks in the shale oil and gas in free phase. Therefore belong to shale gas incomplete sense. Therefore, China's fractured shale reservoirs concept and connotation of shale gas in the United States today are not the same, respectively, in the material content of hydrocarbons, storage phase, there is a big difference between the source characteristics and chemical composition and other aspects.