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本文运用高分辨率层序地层学,结合地震、地质、测井资料,对PN油田FY油层进行层序地层划分与对比、沉积物源方向分析以及储层精细描述三方面研究,将FY油层纵向上细分为2个油层组,12个小层、25个沉积单元,平面上细分为3种亚相、4种沉积微相。应用精细研究成果,结合砂体连通关系,对FY油层进行了主力油层的优选,并以此为依据进行射孔及压裂方案的编制,为PN油田FY油层经济有效开发奠定了基础。
In this paper, we use high-resolution sequence stratigraphy to study the sequence stratigraphy division and contrast of FY oilfield in PN oilfield, the source direction analysis of sediments and the detailed description of reservoirs based on seismic, geological and well logging data. It is subdivided into 2 reservoir groups, 12 small reservoirs and 25 sedimentary units, which are subdivided into 3 subfacies and 4 sedimentary microfacies on the plane. Based on the fine research results and the sandbody connectivity, the optimization of the main oil reservoirs in the FY reservoir is carried out. Based on this, the preparation of perforation and fracturing schemes is laid, which lays the foundation for the economical and effective development of FY reservoirs in the PN oilfield.