叠后地震属性分析在油气田勘探开发中的应用

The application of post-stack seismic attribute analysis in the oil-gas exploration and development

地震属性分析技术一直是地震特殊处理和解释的主要研究内容.随着油气勘探开发的发展,地震属性分析技术已经成为油藏地球物理研究的核心内容,是勘探地震与开发地震之间纽带.本文针对鄂尔多斯盆地的低幅度构造、低孔隙、低渗透率、致密性隐蔽油气藏的特点,综合应用相干数据体分析、地震相自动分类定性识别砂体厚度、地震振幅属性分析、频谱分解、多井约束的储层叠后反演等叠后属性分析技术,探索了一套适合该区油气特征的储层横向预测及油气识别模式.为该区油气勘探开发,储量计算提供可靠依据.同时也为隐蔽性油气藏的勘探开发积累了经验.

The Seismic attribute analysis technology is always main research content of seismic special handling and the explanation. Along with oil gas exploration development, The seismic attribute analysis technology already became the core content of the oil deposit geophysics research, It is link between exploration seismology and development seismology. This article in view of Ordos basin low scope structure, low porosity, low permeability, hiding oil gas pool characteristic, After the synthesis application coherent data body analysis, phase automatic sorting qualitative recognition granulated substance body thickness, the seismic amplitude attribute analygis, the frequency spectrum decompose, the multi- wells restraint reservoir folds the inversion and so on to fold the attribute analysis technology, Explored a set to suit this area oil gas characteristic the reservoir crosswise forecast and the oil gas recognition pattern. For this area oil gas exploration development, The calculation of reserves provides the reliable basis. At the same time the experience for the oil gas pool exploration development is also accumulated.