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随着石油天然气等常规资源的不断消耗,页岩气等非常规资源的地位越来越突出。通过对页岩气成藏形成条件的分析,我们可以更好的了解页岩气的分布规律。一般认为:页岩气藏是一种自生自储型的非常规天然气;可以将页岩气分为生物成因气,热成因气、生物成因气、混合成因气;页岩气的厚度,有机质的成熟度,有机碳含量,页岩裂缝及孔隙的发育程度是评价页岩气成藏机理的重要因素。
With the continuous depletion of conventional resources such as oil and natural gas, the status of unconventional resources such as shale gas has become increasingly prominent. By analyzing the forming conditions of shale gas accumulation, we can better understand the distribution rule of shale gas. It is generally believed that shale gas reservoirs are a kind of unconventional natural gas that is self-generated and stored. Shale gas can be divided into biogenic gas, thermogenic gas, biogenic gas and mixed gas. The thickness of shale gas, organic matter Maturity, organic carbon content, shale fractures and porosity development are important factors for evaluating shale gas accumulation mechanism.