论文部分内容阅读
通过对储层物性数据资料的分析和整理,研究了孔南地区上石盒子组碎屑岩储集层特征及其控制因素。结果表明:研究区上石盒子组碎屑岩储层为低孔低渗储层,渗透率与孔隙度呈正相关性。储层孔隙的连通性好,属于孔隙型储层。孔隙类型以次生粒间溶孔为特征。晚成岩期,岩屑、填隙物、长石颗粒以及高岭石发生溶蚀,产生了大量的次生孔隙,改善了储层物性。沉积条件、压实作用、胶结作用和溶蚀作用是控制储层性质的主要因素。
Through the analysis and arrangement of reservoir physical data, the characteristics and controlling factors of clastic rock reservoirs in the Upper Shihezi Formation in the Kongnan area were studied. The results show that the clastic reservoirs in the Upper Shihezi Formation are low porosity and low permeability reservoirs, and the permeability and porosity are positively correlated. Well-connected reservoir porosity, belonging to the pore-type reservoir. Pore types are characterized by secondary intergranular dissolution. Late diagenetic stage, cuttings, interstitials, feldspar particles and kaolinite erosion occurred, resulting in a large number of secondary pores, improved reservoir physical properties. Sedimentary conditions, compaction, cementation and dissolution are the main factors controlling reservoir properties.