Shale gas is mined from shale in natural gas, is an important unconventional gas resources. Compared to more conventional natural gas, shale gas development has a long life and exploitation of the advantages of long production cycle, most of the shale gas production and wide distribution, thickness, and generally containing gas, which makes shale gas wells to a stable long-term rate of gas production.
2013年8月25日星期日
Investigation and assessment of shale gas resource potential
Oil and gas resources in the national strategy for selection of special, set "national investigation and evaluation of shale gas resource potential and the favorable area preferred" project,hydraulic fracturing the country is divided into the Upper Yangtze land and Dianqiangui, Middle and Lower Yangtze and the southeast, north and northeast, northwest and Tibet five major areas, shale gas resources and potential to carry out the investigation and evaluation.
1, the National Distribution of organic-rich shales
2011 to 2013, analysis of the existing regional geological survey and exploration of oil and gas and other information, the implementation of geological survey, geophysical and geochemical exploration conducted surveys and shallow wells, the completion of field profile measured 50 kilometers,frac sand non-seismic geophysical exploration 10,000 one thousand meters geological Asai 200, access to all areas of organic-rich shale basic information on land in China as soon as possible to identify the distribution of organic-rich shales and basic parameters, preferably prospective areas of shale gas resources.
2, the national shale gas resource potential investigation and evaluation
In Sichuan and Hubei Province in east, north Yunnan, Guizhou, Guangxi Qiannan Nanpanjiang; Hunan - Dongting, northwestern Jiangxi, Zhejiang and Anhui; Erdos, Southern North Songliao, Bohai Bay Basin, Liaohe Depression, Tarim , Junggar and Turpan-Hami, Santanghu, Qaidam, Qiangtang, such as basins and regions, focusing on both other regions, the deployment D seismic 20,000 kilometers non-seismic geophysical exploration 40,000 kilometers,frac proppant survey wells 50 , access to shale gas system parameters to evaluate the resource potential, basic grasp of the national shale gas geological resources and recoverable resources distribution, preferably shale gas enrichment favorable target areas, study concludes that shale gas enrichment regularity. Construction of the investigation and evaluation of shale gas, exploration and exploitation and utilization of integrated demonstration area to promote the shale gas industry, the rapid formation and development.
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