我国页岩气资源现状及勘探前景

Present conditions and exploration prospects of shale gas resource in China

非常规天然气资源—页岩气是可接替能源。因此,其资源勘探开发备受世界瞩目。目前,美国和加拿大率先进入到页岩气的勘探开发阶段,而中国页岩气的勘探还处于起步阶段。在调研了国内外页岩气研究成果的基础上,分析了页岩气储层的特征以及储层空间类型。页岩本身既是烃源岩又是储层,页岩气主要以吸附和游离状态存在于页岩之中,因此与常规的天然气有很大的区别。中国页岩气广泛分布于海相、陆相盆地,资源丰富,预计资源量约为(15～30)×1012m3,勘探潜力大。但由于我国起步晚,还需要加速对页岩气的勘探开发以缓解中国对油气能源的需求压力。

Shale gas is an alternative energy as an unconventional gas resource,so its exploration and development are attracting worldwide attention.At present,the United States and Canada are first to enter the exploration and development of shale gas,but the shale gas exploration is still in its infancy in China.On the basis of reviewing the existed literatures on shale gas at home and abroad,the characters of the shale reservoir and the types of reservoir space were analyzed.Shale is taken as either source rock or reservoir,and shale gas mainly exists in shale by the way of adsorption and free gas,so it has a big difference from the conventional gas.The shale gas resources are rich in China and widely distributed in marine basins and terrestrial basins.The predictive resources is about（15-30）×1012m3,so exploration potential is big.Because of China＇s late start,China still needs to speed up the exploration and development of shale gas to alleviate the pressures of oil and gas energy＇s demand.