中文摘要：

通过深入研究柴达木盆地台深1井新近系碎屑岩的孔隙结构及其微观电镜观察、压汞分析表明：柴达木盆地台深1井新近系碎屑岩主要为长石岩屑砂岩和岩屑砂岩类,填隙物质量分数中等-高;储集空间主要为溶蚀粒间孔隙、溶蚀粒内孔隙及少量的晶间微孔和铸模孔.喉道类型有片状及弯片状喉道、孔隙缩小型喉道.储层的孔隙结构主要受到沉积环境和成岩作用的影响.狮子沟组碎屑岩物性属于中-高孔、低-中渗;上油砂山组碎屑岩属于低-特低孔、特低渗.狮子沟组泥质粉砂岩、粉砂岩、细砂岩可以成为相对较好的油气储层,埋藏较深（3150~4290.9m）,具有碎屑岩,属于特低孔-特低渗储集层特征.在早-晚成岩作用阶段有机质的热成熟作用形成大量的有机酸,对碎屑岩孔隙度和连通性有明显的建设性,是油气储集的有利场所,可作为重点的油气勘探对象.

英文摘要：

Depth studies of the pore structures and micro-electron microscopy of clastic rocks and the mer- cury analyses of Neogene Taishen Well No. 1 in the Qaidam Basin. The results showed that the main Neo- gene clastic rocks are of feldspar lithic and lithic sandstone, the interstitials had medium-to-high content, and the primarily reservoir space is of dissolution pores between grains, dissolution of intragranular pores, a small number of intergranular pores and molded holes, the throat types are of sheet and bending sheet throats, the pores are narrow-throated. The reservoir porosity structures mainly had been influenced by depositional environments and diagenesis. The physical property of the elastic rock in the Shizigou formation belongs to a high porosity and low-permeability, while the Shangyoushashan formation belongs to a low-to-super low pore and low permeability. Argillaceous siltstone, sandstone and sandstone of the Shizigou formation could be relatively good oil and gas reservoirs, with their deeper burial （3 150-4 290.9 m） and reservoir characteristics of low-to-super low permeability and low porosity. A large number of organic acids formed from thermal maturation of organic matter during the early to late diage-netic stage have had obvious constructiveness on clastic rock porosity and connectivity, being beneficial to the accumulation of oil and gases. Thus those reservoirs can be intensive objects for oil and gas explo- ration.