The comparative American shale gas

The comparative American shale gas
First, China is still in the stage to find out the resource base. China has a massive shale gas reservoir of the basic conditions, but not systematically carry out a nationwide survey and evaluation of  shale gas  resources, the total amount and distribution of resources not yet fully grasp. And geologists analysis, due to the different geological conditions, China's shale gas reservoirs generally buried deep in the ground are located below 3,000 meters, while the U.S. shale gas distributed in the underground 800-2000 m, while the U.S. geological structure relative stability, China's shale gas accumulation law more complex, mining more difficult, impossible to copy U.S. technology to mine.
Second, China's natural gas exploration and development is still in the early and mid-conventional gas exploration potential is great, there is no adequate policy incentives enterprises will not shed easy to ask difficult, large-scale exploitation of shale gas at a higher cost. Former deputy director of the Ministry of Petroleum Exploration scale recall that the United States as early as 1821 on the discovery and use of  shale gas   but over the past 10 years to rapid development, the United States has entered the conventional oil and gas exploration and development is an important reason for the late. Overall, instead of conventional oil and low grade, work hard, and high cost.  Unconventional gas  natural gas, our tight sandstone gas has an annual ten billion cubic meters more than the size, has begun commercial production of coalbed methane, and shale gas is just getting started.
Third, the key technology of shale gas to be a breakthrough. Shale gas exploration and development requires horizontal well  fracturing  expertise, our country has not yet fully grasp the underlying core technology. The United States in the 1970s, the establishment of special funds for basic research and key shale gas technology research, has developed the world's first horizontal shale gas wells multi-stage  Fracturing   technology, directly contributed to the commercial development of  shale gas   Shale gas geological conditions of the technical requirements for the development of higher technical research must focus on shale gas exploration and development in order to meet the requirements.
Fourth, China's natural gas pipeline construction and technical services market is lagging behind. U.S. natural gas technology services market is perfect, many SMEs ask a professional technology services company exploration and exploitation of shale gas, significantly reducing the initial investment. Chinese technical services in this area is not perfect, but our natural gas trunk pipelines only 49,000 kilometers, only about one-tenth of the United States, China's shale gas rich region of many central and western mountains, pipeline construction is difficult, the high cost of shale gas is not conducive to the use of external input and downstream marketing.
Five large-scale  shale gas  development on water resources demand. U.S. staged fracturing horizontal wells through which water forcing the release of hydrocarbons shale, water consumption greatly. Target of shale gas blocks mostly in arid or densely populated areas, coupled with  fracturing   chemicals added source of groundwater and surface may cause serious pollution, therefore, large-scale development of shale gas bearing in mind the environment ability to shale gas development in China must solve practical problems.