中文摘要：

采用钨灯丝扫描电镜及场发射扫描电镜,并结合XRD分析、低温氮气吸附等试验对四川盆地富有机质页岩微观孔隙特征进行了研究。研究结果表明：1四川盆地富有机质页岩微观孔隙可分为有机质孔、无机孔和微裂隙,其中无机孔包括片状矿物层间孔、粒间孔和粒内溶孔等类型孔隙;2黏土矿物层间孔构成了微观孔隙的主体,晶间孔、微裂隙等孔隙对页岩气渗流起到积极作用;3页岩孔隙发育受TOC、Ro、黏土矿物含量等多因素控制,其中TOC、黏土矿物含量主要控制了微观孔隙比表面积发育,孔径则受Ro和TOC含量的双重控制。

英文摘要：

Combined with XRD analysis and low-temperature nitrogen adsorption test,tungsten filament scanning electron microscopy and field emission scanning electron microscopy were used to study organic-rich shale micropore characteristics in Sichuan Basin in this paper. The tbllowing findings were obtained：a. The organic-rich shale micropore in Sichuan Basin includes organic hole,inorganic hole and micro fracture. Inside,inorganic hole consists of flaky minerals interlayer hole,intergranular hole and intragranular dissolved hole. b. Clay miner- als interlayer holes constitute the main body of micropores. Intergranular holes and micro fractures play an active role in shale gas seepage. e. Shale porosity development is under the control of TOC, Ro , clay mineral content and many other factors. TOC and clay mineral content are the main control of the development of micro pore＇s specific surface area. The aperture of the hole is dual controlled by Ro and TOC.