Comments: Shale gas development in order to profit and avoid loss

Global shale gas resource development is gradually entered a rapid development track, which reduces international gas prices and volatility in international energy prices will play an important role in promoting,ceramic ball but at the same time, shale gas development has also brought a series of environmental problems , especially the utilization of water resources is even more worrying. Accenture Greater China Vice President Yang Wei recently in an interview with reporters, said that shale gas development is not only need to consume a lot of water, and will produce more than conventional gas greenhouse gas emissions. Thus, in shale gas development process,Proppant we must pay attention to avoiding disadvantages.
Shale gas development life cycle, including drilling site preparation, drilling, completion and release of gas fracturing, fracturing fluid reflux, gas production, and other five areas, in which all aspects of water resources have played an important role. According to Accenture research report released "Water and shale gas development," the U.S. experience shows that drilling and fracturing of water required is generally 5 million gallons (18,927,000 liters), equivalent to 1,000 trucks transport water, which fracturing stages of water up to 90% of total water consumption. In addition, the U.S. natural gas drilling water pollution incidents, 48% of groundwater pollution, 33% of the well site Table leak. Thus, shale gas development is necessary to solve the water problem, but also to solve the water pollution problem, otherwise will cause serious damage to the natural environment.
As one of the authors of the report, said Yang Wei,  Hydraulic fracturing  of shale gas development is one of the core technology, the use of a lot of water primarily from surface water, groundwater, and municipal water supply. This population density, water scarce country or region will pose a huge challenge. In addition, the fracturing process, in addition to plenty of water and sand, should also inject a small amount of chemical substances in order to play the role of lubrication and sterilization.fracturing proppant After fracturing, the fracturing fluid will be injected before back to the surface, which in addition contains a previously injected chemicals, but also with the formation of the chemical substances, and naturally occurring radioactive material, to form water. When these substances in concentrations above a certain standard, water recycling and recycling in there should be feasible and rigorous solutions.