陕北斜坡中部长6储层“四性”关系研究

Study on the “four nature” relationship of the chang 6 reservoir in the Northern Shaanxi Slope

研究区长6储层主体主要发育三角洲前缘亚相沉积,对研究区目的层位的"四性"关系进行了研究,认为长6层储集性变化受沉积作用和成岩作用控制明显,压实、胶结和溶蚀作用控制了储层孔隙结构特征及储层物性,并且认为长6储层基本属于低～特低孔、特低～超低渗储层。

The main body of Chang 6 reservoir in the study area mainly develops delta front subfacies deposits.The“four characteristics”relationship of the target horizon in the study area is studied.It is considered that the reservoir change of Chang 6 reservoir is obviously controlled by sedimentation and diagenesis.Compaction,cementation and dissolution control the pore structure characteristics and reservoir physical properties,and that Chang 6 reservoir is long.6 the reservoir is basically low to ultra-low porosity and ultra-low to low permeability reservoir.