Shale gas development mode

Although there while natural gas fracturing holding the gas in free phase exists, but does not require the development of shale gas drainage buck. Since shale gas in free phase of recovery, can naturally achieve the purpose of pressure reduction, resulting in the adsorbed phase and a small amount of ionized gas dissolved phase, to further increase natural gas production capacity and to achieve the purpose of long-term and stable. Due to low gas porosity and permeability is low productivity and recovery, so rock gas ultimate recovery depends on an effective fracturing, fracturing technology and production processes Coal seam gas have a direct impact on the economy of shale gas wells benefits.
Some experts mentioned contacting gas, JAMasters (1979) proposed a deep basin gas (Deep bagas) ideology, the establishment of a gas water inversion mode, which describes the broad prospects for natural gas exploration and development. Because identification is difficult, PR Rose et al. (1986) proposed a basin-centered gas (Basin-centergas), B. E. Recognition Law, who studied the idea of ​​improving the gas reservoirs from "gas-water inversion region" is "no edge water", thus simplifying the cumbersome identification process and to advance the recognition of the largely gas reservoirs of time. Since the determination of the "boundless bottom water still more drilling geological data it is still not the best solution.