Shale gas development has a long service life and long production cycle

Shale gas development has a long service life and long production cycle, most of the gas shale distribution range, Chinese rock gas frac sand companies in thickness, and the common gas, makes gas shale gas well to long-term stability. But the shale gas reservoir permeability is low, mining is difficult. As the world's energy consumption rising, including shale gas, unconventional energy more and more be taken seriously. The United States and Canada and other frac sand already realized shale gas commercial development. Shale gas reservoirs usually assumes the physical characteristics of low porosity, low permeability, flow resistance than conventional natural gas, all well need to implement reservoir fracturing can be mined. On the other hand, the recovery rate is lower than the conventional gas shale gas, conventional gas recovery rate over 60%, and shale gas is only 5% ~ 60%. Low yield affects people enthusiasm for it, the United States there have been some advanced technology can improve the yield of shale gas well. China's shale gas reservoir compared with America, such as shale gas reservoirs of the sichuan basin buried depth than the United States, the depth of shale gas in the United States in 800 ~ 2600 meters, and the embedded depth of shale gas reservoirs of the sichuan basin in 2000 ~ 3500 meters. The increase of the depth of the shale gas will undoubtedly again on our immature technology adds to the difficulty.