赵鹏飞, 余杰, 杨磊. 页岩气储量评价方法[J]. 海洋地质前沿, 2011, 27(7): 57-63.
    引用本文: 赵鹏飞, 余杰, 杨磊. 页岩气储量评价方法[J]. 海洋地质前沿, 2011, 27(7): 57-63.
    ZHAO Pengfei, YU Jie, YANG Lei. METHODS FOR SHALE GAS RESOURCE ASSESSMENT[J]. Marine Geology Frontiers, 2011, 27(7): 57-63.
    Citation: ZHAO Pengfei, YU Jie, YANG Lei. METHODS FOR SHALE GAS RESOURCE ASSESSMENT[J]. Marine Geology Frontiers, 2011, 27(7): 57-63.

    页岩气储量评价方法

    METHODS FOR SHALE GAS RESOURCE ASSESSMENT

    • 摘要: 随着油气资源需求的不断增长,作为非常规油气资源的页岩气将是未来天然气的重要组成部分。介绍了页岩气的总体地质特征、成藏机理和开发特征,描述了页岩气储量的评价方法。根据区域地质评价结果,盆地中心区或构造斜坡区一般为页岩气的有利富集区。具有开发价值的页岩气藏,页岩厚度应达到一定规模,一般应大于15 m,且区域上要连续稳定分布;总有机碳含量一般应大于2%,有机质热成熟度一般应大于1.1%;页岩脆性矿物含量一般应大于30%。页岩气的储量评价一般采用体积法。储量计算的主要参数为总有机碳含量、孔隙度、含水饱和度、吸附气含量和储层厚度等,一般利用测井资料并结合钻井取心分析资料来求取这些参数。

       

      Abstract: As a kind of unconventional oil and gas resources, shale gas will become an important component of natural gases in the future with the increase in energy demand. This paper introduces to the readers the overall geological conditions, accumulation mechanism and development options of shale gas, as well as the method for shale gas resource assessment. According to regional geological knowledge, basin center and structural slope are the favorable areas for shale gas accumulation. As to the accumulation of shale gas, it requires that the shale sequence, which contains rich organic matter with development value, reaches a certain thickness, and is continuously and steadily distributed. The net pay thickness should not be less than 15m. The total organic content should be higher than 2 percentage, the organic maturity is greater than 1.1 percentage, and the content of brittle mineral is over 30%. Volume method commonly is used on the evaluation of shale gas reserves. The major parameters required include total organic content, porosity, water saturation, adsorption gas content, and reservoir thickness. these parameters generally are calculated with well logging data, combined with drilling core analysis data.

       

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