论文部分内容阅读
沉积相控制着油气储层的分布和储集性能,研究各种类型的沉积相特征,不仅具有重要的理论意义,而且也能更好地为下一步勘探开发提供依据。通过研究TB区块区域地质背景和各种分析化验资料,以长2为例,划分岩石相及其组合,进行垂向层序分析、沉积旋回分析、单项指标相分析等来确定砂体的沉积微相类型,并建立典型沉积微相柱状图,进而确定沉积相展布特征。通过沉积相研究,为进一步勘探开发提供地质依据。
Sedimentary facies controls the distribution and reservoir performance of oil and gas reservoirs, and studies various types of sedimentary facies characteristics not only have important theoretical significance, but also provide a basis for further exploration and development. By studying the geologic background of the TB block and various analytical laboratory data, taking the Chang 2 as an example, the lithofacies and their assemblages are divided and vertical sequence analysis, sedimentary cycle analysis and single index phase analysis are used to determine the sediments Microfacies type, and the establishment of typical sedimentary microfacies histogram, and then determine the sedimentary facies distribution characteristics. Through the study of sedimentary facies, provide geological basis for further exploration and development.