文安斜坡南段岩性油气藏储层预测研究

发布时间：2018-05-19 19:07

本文选题：文安斜坡 + 岩性油气藏　；参考：《东北石油大学》2017年硕士论文

【摘要】：随着华北油田进入高成熟后期勘探开发阶段,新发现油气藏地质条件趋于复杂化。迫切需要更先进、更系统的研究方法和技术手段以应对日趋加大的勘探开发难度。储层预测技术在今后复杂油藏勘探中势必成为一种必不可少的研究手段。在了解整个盆地的地质背景的基础上,确定大的沉积环境和构造受力情况以及斜坡南段下第三系的主体沉积环境。以小层精细地震标定为首要,开展外带岩性体精细构造解释,落实岩性体的构造形态特征。以高分辨率层序地层学为基础,充分利用地震、钻井、测井资料建立等时层序地层格架。开展小层对比,落实油组层间分布特征及潜力分析。优化地震属性组合,选择外带岩性体敏感性地震属性平面预测砂体展布特征。测井约束地震反演,预测纵向油组分布范围。通过优化子波,井震互动标定,准确落实岩性体地震相应特征;通过提频及优化地震属性等手段,优选振幅类预测薄层、薄互层砂体的储层分布特征,并开展地震相分析,优选有利相带;通过优选参数,建立起砂泥岩阻抗范围,得到自然电位、自然伽马等多属性体,准确预测了砂体的纵横向分布特征,刻画了砂体的展布范围;利用岩心观察手段,结合测井曲线响应特征,对南段沉积相进行研究,并利用地震相和反演等结果,综合预测有利砂体。落实了文安斜坡南段Ed3-Es3砂体的平面及纵向上的分布规律。
[Abstract]:As Huabei Oilfield enters the stage of high maturity and late exploration and development, the geological conditions of newly discovered oil and gas reservoirs tend to be complicated. More advanced and systematic research methods and techniques are urgently needed to cope with the increasing difficulty of exploration and development. Reservoir prediction technology is bound to become an indispensable research method in complex reservoir exploration in the future. On the basis of understanding the geological background of the whole basin, the large sedimentary environment and tectonic stress as well as the main sedimentary environment of the Lower Tertiary in the southern slope are determined. The fine structural interpretation of the outer lithologic body is carried out and the structural morphological characteristics of the lithologic body are realized. Based on high resolution sequence stratigraphy, the isochronous sequence stratigraphic framework is established by making full use of seismic, drilling and logging data. Carry out small layer correlation and carry out the analysis of the distribution characteristics and potential between the layers of the oil formation. To optimize the combination of seismic attributes and select the lithologic body sensitivity seismic attribute plane to predict the distribution characteristics of sand body. Logging constrained seismic inversion is used to predict the distribution range of longitudinal oil groups. By optimizing wavelet and seismic interaction calibration, the corresponding seismic characteristics of lithologic bodies can be accurately implemented. By means of increasing frequency and optimizing seismic attributes, the reservoir distribution characteristics of thin and thin interbedded sand bodies can be predicted by selecting amplitudes, and the seismic facies analysis will be carried out. The optimum selection of favorable facies zone, the establishment of the impedance range of sand and mudstone, the natural potential, natural gamma and other multi-attribute bodies, the accurate prediction of the longitudinal and horizontal distribution characteristics of sand bodies, and the delineation of the distribution range of sand bodies, through the optimal selection of parameters, the impedance range of sand and mudstone is established, and the natural potential and natural gamma are obtained. The sedimentary facies of the southern section are studied by means of core observation and logging curve response. The favorable sand bodies are comprehensively predicted by seismic facies and inversion. The horizontal and longitudinal distribution of Ed3-Es3 sand body in the south section of Wen'an Slope has been carried out.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P618.13

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