中文摘要：

页岩气是以吸附或游离态为主赋存于暗色富有机质、极低渗透率的泥页岩中,自生自储、连续聚集的天然气藏.我国页岩气富集地质条件优越,具有良好资源前景及开发潜力.页岩气勘探开发的＂甜点＂是富有机质页岩优质储层的发育段和有利区,页岩气储层评价是寻找＂甜点＂的关键.地球物理测井技术贯穿于页岩气的勘探开发,是识别和评价页岩气储层的重要手段之一.我国的页岩气勘探开发及储层评价正处于起步探索阶段,为了有效利用地球物理测井技术进行页岩气储层评价,在调研国内外大量文献的基础上,结合已有的地质、测井资料,首先介绍了页岩气勘探开发中不同钻井类型所采用的测井系列,对比和分析了页岩气储层测井响应特征.其次从矿物组分、地球化学参数、物性参数、含气性和可压裂性评价等方面全面深入论述了页岩气储层测井评价方法及评价参数的计算,认为矿物组分、地球化学参数、物性参数、含气性和可压裂性是页岩气储层测井评价的重点,并结合实际资料改进了TOC和脆性指数计算公式.最后提出了我国页岩气储层测井评价中存在的主要问题、发展趋势及一些认识和建议.

英文摘要：

Shale gas is mainly comprised of the adsorbed and free gas which accumulated in black organic-rich and extremely low-permeability shales.Shale gas reservoirs have the characteristics of autochthonous generation,continuous charging and accumulation.China have superior geological conditions for shale gas accumulation,favorable shale gas resource prospects and development potentials.Compared with the North America,formation and development of.China＇s shale gas have obvious particularity and many geological and development problems need to be solved urgently In general,the gas-bearing shale layers in China possess high TOC,high thermal maturity and a high degree of later reformation.The ＂sweet spot＂ in shale gas exploration and development is a section of high quality and core reservoir area,which determines the shale gas reservoir evaluation as the key to find out ＂ sweet spot＂ in organic-rich shales.Geophysical well logging is one of the significant methods for identification and evaluation of shale gas reservoirs,which is throughout the process of shale gas exploration and development.Shale gas exploration,development and reservoir evaluation in China is at a initial stage.In order to use geophysical well logging effectively and efficiently to evaluate shale gas reservoirs in China and with a combination of literature,geological and well log data,this paper firstly introduces commonly used well logging series in different type of wells in shale gas exploration and development.And the logging response of shale gas reservoir is compared and analysed.Secondly,the main well logging methods and parameters＇ calculation of shale gas reservoir evaluation are introduced from the aspects of mineral composition,geochemical parameter,physical parameter,gas content and fracability.In particular,the emphases of shale gas reservoir evaluation are mineral composition,geochemical parameter,gas content and fracability,which determines whether a shale has potentials for further development.Besides,the equations of calcul