吐哈盆地葡萄沟—葡北地区侏罗系构造精细解释及储层预测

发布时间：2018-01-07 22:21

本文关键词：吐哈盆地葡萄沟—葡北地区侏罗系构造精细解释及储层预测　出处：《西南石油大学》2017年硕士论文　论文类型：学位论文

【摘要】：吐哈盆地葡萄沟-葡北地区断裂发育,储层良好,油气资源丰富。基于此,本论文依托中石油股份公司吐哈油田分公司开发部外协项目,以台北凹陷葡萄沟-葡北地区侏罗系七克台组与三间房组为研究对象,利用新采集处理的连片三维地震资料,结合相干体技术、曲率分析技术、图像分析技术、变速成图技术进行构造精细解释,对本区的构造特征及演化进行深入的研究分析;同时在构造形态准确落实的情况下,在分析了常规波阻抗反演方法的优劣势后,在本区引用一种新型波阻抗反演方法—地震波形指示模拟反演法来对主要目的层段的薄储层进行预测。研究结果表明,葡萄沟构造带中侏罗统构造具有"南北分带"的特征,火焰山断层上下盘被分为下盘牵引背斜带、南部背斜带和北部斜坡带三排构造带;葡北构造带呈南北向展布,构造带主体形成于早燕山期,中晚燕山期得到加强,定型于喜山期,受西部布尔加凸起持续隆升及北部山前逆冲推覆影响,构造样式整体上呈现南高北低,南北分带,东西分块。常规稀疏脉冲波阻抗反演和地质学统计波阻抗反演由于地震频宽以及井位均匀分布性的限制,不能对本区薄储层进行准确预测,而地震波形指示模拟反演方法不对初始模型过分依赖,通过地震波形可反映出地下沉积环境以及岩性组合的空间变化,且反演结果与已钻井的自然电位曲线吻合较好,井间砂体变化自然,得到较可靠的反演结果,从而能准确预测薄储层。通过上述构造发育与储层有利区对勘探目标进行优选,对于该区开展开发井位部署和油藏描述具有较好的支撑作用。
[Abstract]:Development of Turpan Hami basin Putaogou Pubei fault area, good reservoir, rich oil and gas resources. Based on this, this thesis relies on the company PetroChina Tuha oilfield company development outsourcing project in Taipei sag Putaogou Pubei area in seven grams of Taiwan and sanjianfangformation group as the research object, using 3D the new seismic acquisition and processing, combined with the coherence technique, curvature analysis, image analysis, variable velocity mapping technology of fine structural interpretation, in-depth research and Analysis on the structural characteristics and evolution in this area; at the same time in the form of the accurate implementation of structural conditions, in the analysis of the advantages and disadvantages of conventional wave impedance inversion in this method, a new area of reference wave impedance inversion method - seismic waveform inversion method to thin reservoir simulation indicates the main purpose of the tier is predicted. The results show that the Grape Valley structure belt in the Middle Jurassic Jurassic tectonic "North-South zonation" feature, the Flaming Mountains fault footwall is divided into lower traction anticline belt, southern anticline belt and the northern slope of the three structural belt; tectonic belt Pubei north-south trending tectonic belt formed in early Yanshan, late Yanshan period has been strengthened, formed in the the Himalayan, by Western bluejaz continued to rise and the northern uplift uplift piedmont thrust nappe tectonic style, the overall trend in the South than in the north, North and South sub zone, that block. The conventional sparse pulse wave impedance inversion and wave impedance inversion of seismic geology statistics as well as well as uniform distribution of bandwidth constraints, can not accurately predict in the area of thin reservoir, seismic waveform inversion method and indicator simulation of initial model not overly dependent, by seismic waveform can reflect the underground space environment and lithology changes, and the inversion results with self drilling However, potential curves agree well, interwell sand change nature, get the inversion result is reliable, which can accurately predict the thin reservoir. Through the development of structure and reservoir favorable zone optimization of exploration targets, has a good supporting role for the district to carry out the development of well deployment and reservoir description.

【学位授予单位】：西南石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P618.13;P534.52

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