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页岩气是指那些聚集在暗色泥页岩或高碳泥页岩中,以吸附或游离状态为主要存在方式的天然气。页岩气属于非常规气藏,储层具有低孔、低渗特征,与常规的气藏相比,页岩气具有特殊的地质特征,因此,其高效的开发也必须使用特殊的开发技术,我国页岩气开发潜力巨大,但页岩气研究相对滞后,目前,我国页岩气的开发刚刚起步,本文介绍了页岩气资源的分布状况、页岩气成藏机理,吸附与解吸机理,从页岩气勘探技术、开发技术两个方面介绍了页岩气发展的现状,并指出了页岩气的发展方向。
Shale gas refers to natural gas that accumulates in dark shale or high-carbon shale and exists mainly in the adsorbed or free state. Shale gas belongs to unconventional gas reservoirs, reservoirs have low porosity and low permeability characteristics. Compared with conventional gas reservoirs, shale gas has special geological characteristics. Therefore, its efficient development must also use special development techniques, At present, the development of shale gas in China has just started. This paper introduces the distribution of shale gas resources, shale gas accumulation mechanism, adsorption and desorption mechanism, The development status of shale gas is introduced from two aspects of shale gas exploration technology and development technology, and the development direction of shale gas is pointed out.