大庆油田北二东东部井震结合储层预测

发布时间：2018-01-27 01:42

本文关键词： 层序地层储层精细描述储层反演技术井震结合沉积微相　出处：《东北石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：经过多年的开发,大庆油田已经进入高含水后期开发阶段,剩余油的分布成为了主要的研究对象。由于各种因素的影响造成剩余油的分布分散,因此加大了预测的难度,同时开采难度也随之加大。储层是控制着剩余油分布的重要因素,因此需要对其进行全面的研究,从而进行预测。本次研究针对大庆油田第三采油厂“北二东东块井震结合储层精细描述研究”项目,研究区位于北二东东块,面积约6.05km2,构造较为平缓,地层倾角为20—30之间,发育断层较少,区域内共发育萨、葡、高三套油层,目的层为萨二、萨三油层组。研究中,通过密井网资料建立了研究区高分辨率层序地层格架,明确层序地层演化特征;利用Jason软件的高分辨率储层反演技术,对萨二、萨三油层组井震结合进行储层预测;反演结果和测井曲线对沉积单元沉积微相研究刻画起到了重要的作用;利用“地震反演引导,井点微相控制”方法,完成对研究区目的层28个沉积时间单元的平面沉积微相及单砂体空间分布初步研究。在此结果基础上,结合地震反演结果,对该28个沉积时间单元单砂体平面分布进行了精细预测,建立一套井震相模式及相关图版,形成一套具有成因意义的井震结合沉积微相的技术方法;建立前缘相7种类型储层砂体成因与沉积模式。通过对储层目的层沉积单元的沉积相研究,刻画出萨二、萨三油层组沉积单元的井间河道砂体展布,从而使储层的精细解剖更加客观、准确,描述剩余油的分布规律,这对油田的开发具有指导意义。
[Abstract]:After years of development, Daqing oil field has entered the stage of high water cut, the distribution of remaining oil has become the main research object. Due to the influence of various factors, the distribution of remaining oil is dispersed. The reservoir is an important factor controlling the distribution of remaining oil, so it is necessary to study it comprehensively. This study is aimed at the project of "well earthquake combined with reservoir fine description study" in the third oil production plant of Daqing Oilfield. The research area is located in the east and west block of North China, with an area of about 6.05 km ~ 2. The structure is gentle, the stratigraphic dip angle is between 20-30, the developed fault is less, and the three sets of oil layers of sa, Hu and Gao are developed in the area, the target layer is the second and third oil layers of sa. The high-resolution sequence stratigraphic framework of the study area is established through the dense well pattern data, and the evolution characteristics of the sequence stratigraphy are clarified. Using the high-resolution reservoir inversion technology of Jason software, the reservoir prediction is carried out by combining well and earthquake of the second and third oil formations. The inversion results and logging curves play an important role in the study and characterization of sedimentary microfacies in sedimentary units. Using the method of "seismic inversion guidance, well point microfacies control", a preliminary study on the spatial distribution of planar sedimentary microfacies and single sand bodies in 28 sedimentary time units of target layers in the study area has been completed. Combined with seismic inversion results, the plane distribution of single sand bodies in 28 sedimentary time units is predicted, and a set of well facies model and related charts are established. The formation of a set of genetic significance of wellquakes combined with sedimentary microfacies of the technical method; Through the study of sedimentary facies of the sedimentary units of the target reservoir, the distribution of the interwell channel sand bodies of the sedimentary units of the second and third oil formations of the sa 2 and 3 oil formations is described. Thus, the fine anatomy of reservoir is more objective and accurate, and the distribution law of remaining oil is described, which is of guiding significance to the development of oil field.
【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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