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中文摘要：
沉积基准面旋回对陆相盆地砂岩储层的物性特征具有重要的控制作用，本文以高分辨率层序地层学理论为指导，通过对露头、测井、岩心资料的分析，在库车前陆盆地克拉2气田白垩系中识别出3种不同级别的基准面旋回，分别是中期旋回、短期旋回及超短期旋回，并探讨了砂岩储层物性分布与不同级别基准面旋回的关系，研究发现，对于同种成因类型的砂体，随着基准面的上升，其孔隙度、渗透率有下降趋势，在基准面较低的情况下，易形成高孔、高渗的储层，在下降半旋回与上升半旋回的转换点附近，一般为一组或一段地层中最大的孔隙度和渗透率发育的层位。
英文摘要：
Base-level cycles play an important role in controlling the physical properties of sandstone reservoirs. Based on the analysis of the data of outcrops, well loggings and drill cores, three orders of base-level cycles are recognized from Cretaceous in kela-2 gas field of Kuche foreland basin with the direction of high-resolution sequence stratighaphic theory, as raid-term base-level cycles, short-term base-level cycles and super-short-term base-level cycles. The relationship between base-level cycles and physical properties of reservoirs has been discussed with these three orders of base-level cycles.The study shows that with the rise of base-level, porosity and permeability of the sandstone reservoirs which formed in the same genetic type decrease.It is favorite to form the high-porosity and high-permeability reservoirs in lower base-level periods. And reservoirs with the largest porosity and permeability in a formation or a member of strata locate mainly near the turnaround parts of base-level cycles.
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