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准确划分和识别沉积(微)相是陆相含油气盆地储层预测和评价的基础。通过对测井曲线特征的综合分析可以得到大量的沉积学信息,进而重建沉积环境。文章系统阐述了在测井相分析基础上进行储层沉积特征研究的思路和方法,并以松辽盆地南部某区块为例,分析了三角洲前缘沉积环境的各种沉积微相特征,利用测井曲线的幅度、形状和顶底接触关系三个要素,建立了适合本区沉积环境的各种沉积微相解释的测井相模式,为各小层平面沉积微相和砂体分布研究奠定了基础。
Accurately dividing and identifying sedimentary (micro) facies is the basis of reservoir prediction and evaluation in terrestrial oil-bearing gas basins. Through comprehensive analysis of the characteristics of well logging curves, a large amount of sedimentary information can be obtained, and the sedimentary environment can be reconstructed. This paper systematically expounds the ideas and methods of reservoir sedimentary characteristics based on well log facies analysis. Taking a block in the southern Songliao Basin as an example, the characteristics of various sedimentary microfacies in the depositional environment of the delta front are analyzed. Logging curve of the amplitude, shape and top-bottom contact relationship between the three elements to establish a suitable sedimentary environment for the sedimentary microfacies interpretation of logging facies model for the small layer of sedimentary microfacies and sand body laid the foundation for the study The foundation.