喇嘛甸油田北东一区地震精细解释与储层预测研究

发布时间：2018-05-31 19:02

本文选题：精细解释 + 波阻抗　；参考：《东北石油大学》2017年硕士论文

【摘要】：随着石油勘探工作的不断深入,一些新的地震储层预测技术的涌现,特别是针对我国一些薄油层、砂泥岩交互沉积的地区,应用科学的分析方法和先进的岩性预测软件能大大地提高储层的预测精度,可以有效地改善油田的钻井开发效果。喇嘛甸油田是大庆油田的老区之一,也是大庆油田稳产的现实区块,油田的开发已经进入高含水期,剩余油零散分布,单纯依靠测井资料难以进行高含水后期精细剩余油挖潜工作。在认真分析和借鉴前人研究成果的基础上,充分利用地震、测井和钻井资料,对喇嘛甸油田北东一区展开了深入细致的研究,对该区的萨尔图油层组进行了精细解释,共解释26个层位;落实了微小断层和微幅度构造的分布特征。本文采用了InverTracePlus反演和地震参数反演结合的方法,取长补短,把InverTracePlus反演的结果和地震参数反演结果的高频部分合并,拓宽了InverTracePlus反演结果的频带,提高了纵向上识别小层的能力,通过对该区地层岩性、储层敏感测井参数分析和一系列的反演实验,发现自然电位能很好地区分砂、泥岩,因此我们选用SP重构波阻抗来进行反演,该方法能精细刻画本区的主要储层的空间展布,可有效识别厚度大于2m以上的砂体,对于1~2m厚度的砂岩在一定程度上也可以识别,反演结果比较可靠。有效地解决了喇嘛甸油田北东一区储层反演的难题。通过本文研究,不仅可以为该区的油气勘探开发工作提供有价值的科学参考依据,同时也为隐蔽油气藏的勘探开发积累了经验。
[Abstract]:With the deepening of petroleum exploration, some new seismic reservoir prediction techniques have emerged, especially in some areas of China where thin oil layers, sand and mudstone deposits are interactively deposited. The application of scientific analysis method and advanced lithology prediction software can greatly improve the reservoir prediction accuracy and effectively improve the drilling and development effect of oil fields. Lamadian Oilfield is one of the old areas of Daqing Oilfield, and it is also a realistic block of stable production in Daqing Oilfield. The development of the oilfield has entered a period of high water cut, and the remaining oil is distributed scattered. It is difficult to excavate the potential of fine remaining oil in the late stage of high water cut by relying solely on logging data. On the basis of careful analysis and reference of previous research results, and making full use of seismic, logging and drilling data, a thorough and meticulous study has been carried out on the first area of the North East of Lamadian Oilfield, and a fine interpretation of the Saltu reservoir formation in this area has been carried out. A total of 26 horizons have been interpreted and the distribution characteristics of micro faults and micro amplitude structures have been implemented. In this paper, the method of combining InverTracePlus inversion with seismic parameter inversion is used to learn from each other, combining the result of InverTracePlus inversion with the high frequency part of the result of seismic parameter inversion, which widens the frequency band of InverTracePlus inversion results and improves the ability of identifying small layers vertically. Through the analysis of formation lithology, reservoir sensitive logging parameters and a series of inversion experiments, it is found that natural potential can distinguish sand and mudstone well, so we choose SP reconstructed wave impedance to carry out inversion. This method can accurately describe the spatial distribution of the main reservoirs in this area, and can effectively identify sand bodies more than 2m in thickness, and can also be recognized to a certain extent for sandstone with a thickness of 1 ~ 2 m, and the inversion results are relatively reliable. The problem of reservoir inversion in the first area of North East of Lamadian Oilfield has been solved effectively. The research in this paper not only provides a valuable scientific reference for the exploration and development of oil and gas in this area, but also accumulates experience for the exploration and development of subtle oil and gas reservoirs.
【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;P631.4

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