储层预测技术在吉林油田中央坳陷区扶余油层中的应用

发布时间：2018-11-15 09:15

【摘要】：地震储层预测是以高分辨率地震资料和测井资料为基础,以地质资料与钻井资料为参考,波阻抗反演和属性分析为主要技术来进行的,因此,波阻抗反演的效果和属性参数的选取、运用成为储层预测技术的关键。储层预测是油气勘探开发的核心技术,论文以用地震方法进行储层预测的相关技术展开,进行了储层地震综合预测技术、储层地震波传播特性分析、储层地球物理参数反演及叠前波阻抗反演技术的研究。储层预测研究的内容主要是弄清储层构造特征、岩性特征及储层特征参数,进而减少勘探开发的风险。储层特征参数包括孔隙度、渗透率、流体类型等,而地震资料提供的是地震波旅行时的振幅信息参数,再通过反演可得到弹性参数,地震岩石物理学则是为弹性参数和储层参数之间搭建桥梁。中央坳陷区扶余油层以大型河流相沉积为主,河道砂体发育,砂地比在30%—70%之间,单砂层厚度在3m-10m,泥岩隔层在1m-20m厚度不等,砂岩叠置关系错综复杂;储层发育,但大多数储层致密发育,非均质性强,部分井的单井试油产能不高。论文的主要内容是在勘探部署的重点区块,针对扶余油层致密油储层预测的难点,开展地震资料精细解释和储层预测技术研究及应用。首先进行地质、油藏等方面的分析,然后采用各种储层预测方法进行尝试,对比多个井区应用效果,总结出一套适合吉林油田中央坳陷区扶余油层的储层预测方法,为水平井的部署提供精准的油层顶面构造解释和储层预测成果。
[Abstract]:Seismic reservoir prediction is based on high-resolution seismic data and logging data, geological data and drilling data as reference, wave impedance inversion and attribute analysis as the main technology. The effect of wave impedance inversion and the selection of attribute parameters are the key to reservoir prediction. Reservoir prediction is the core technology of oil and gas exploration and development. This paper carries out the comprehensive reservoir seismic prediction technology and analyses the propagation characteristics of reservoir seismic wave by using seismic method to carry out the related technology of reservoir prediction. Research on inversion of reservoir geophysical parameters and pre-stack wave impedance inversion. The main content of reservoir prediction research is to make clear the reservoir structure characteristic, lithology characteristic and reservoir characteristic parameter, and then reduce the risk of exploration and development. Reservoir characteristic parameters include porosity, permeability, fluid type and so on. Seismic data provide amplitude information parameters of seismic wave travel time, and elastic parameters can be obtained by inversion. Seismic rock physics is to build a bridge between elastic parameters and reservoir parameters. In the central depression area, the fluvial facies is dominant in Fuyu reservoir, the channel sand body is developed, the ratio of sand to land is between 30% and 70%, the thickness of single sand layer is between 3 m and 10 m, the thickness of mudstone interval is not equal to that of 1m-20m, and the overlay relationship of sandstone is complicated. The reservoir is developed, but most of the reservoirs are dense, heterogeneity is strong, and the oil test productivity of some wells is not high. The main content of this paper is to carry out the research and application of seismic data fine interpretation and reservoir prediction technology aiming at the difficulty of prediction of dense oil reservoir in Fuyu reservoir in the key blocks of exploration and deployment. First of all, the geological, reservoir and other aspects are analyzed, and then various reservoir prediction methods are used to try to compare the application results of several well areas, and a set of reservoir prediction methods suitable for Fuyu reservoir in the central depression area of Jilin Oilfield are summarized. To provide accurate interpretation of reservoir top structure and reservoir prediction for horizontal well deployment.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13

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