砂砾岩储层研究现状

Research Status of Sandy Conglomerates Reservoir

砂砾岩在我国广泛分布,具有近源、快速堆积的特征,其由多期扇体叠置而成,纵向上沉积厚度变化大,岩相变化快,岩石结构成熟度和成分成熟度都很低,储层非均质性极强,因而给储层预测、油气水层识别和测井解释带来困难。同时,其形成时的沉积过程和构造背景决定了砂砾岩油气藏的特殊性。对砂砾岩储层研究现状进行了系统总结,从而为砂砾岩油气藏勘探与开发提供参考。

Sandy conglomerates are widespreaded in China,and have the characteristics of near source and fast overlap ,they are consisted of multiple stage of fans, sedimentary thickness and sedimentary facies vary greatly in vertical, which leads to low texture maturity and compositional maturity and strong reservoir heterogeneity ,causes difficulty for reservoir prediction, oil/gas/water layer identification and precise well-logging interpretation.At the same time,the deposition process and structural background of sandy conglomerates make the reservoir special.Systematical study on its progress is of great importance for guiding sandy conglomerate reservoir exploration and development.