【作者】 李才；

【导师】 杜启振； 刘春成；

【作者基本信息】 中国石油大学 ， 地质工程， 2009， 硕士

【摘要】 近年来随着地震技术的迅速发展,地震资料所包含的大量信息已经受到了勘探家的高度重视。随着大面积三维地震资料采集、处理水平的不断提高,地震资料的分辨率也越来越高,给地震属性的准确提取提供了有利条件,可以用来预测储层的有利区带,指导井位的钻探。在新构造运动理论的推动下,渤海海域上第三系陆续发现了一批大型或中型油气藏,这些油田主要为河流相砂岩油藏,由于断层发育且砂体分布复杂,储层横向变化很大,如何准确刻画储层分布是油田评价的关键。另外中海油总公司提出油气并举的勘探战略,今后渤海的大中型潜山勘探日益受到重视,制约潜山勘探的关键因素之一是潜山储层的发育程度。文中介绍了众多地震储层预测技术的方法、原理,包括合成地震记录标定、地震反演、地震属性、频谱分解及吸收系数等技术,并对每种技术的关键点、应用领域进行了分析研究。本论文结合生产实践,在渤中19-21地区系统的开展了地震储层预测技术在渤海中部地区不同目的层系勘探中的应用,并对技术加以总结,以期指导今后相类似构造的储层研究工作。更多还原

【Abstract】 In recent years,with the rapid developments of seismic technology,the explorationists have attached much importance to the plenty of useful information which contained in the seismic data. In the meantime the increasing improvement of the level of large area 3D seismic data acquisition,processing will make the seismic resolution to be getting higher and higher. Apparently,it will benefit extracting seismic attributes so as to predicate the distribution of the most favorable reservoir zones and achieve the aim of guiding the drilling eventually.With the neotectonic movement theory’s efforts,several large and middle fluvial facies sandstones oilfields have been discovered in Neogene of Bohai sea area. These oilfields are mainly fluvial facies sandstones in Neogene. Since faults developed well and the sandstones distributed complexly,the lateral change of the reservoir is fast,therefore how to describing the reservoir distribution effectively is the key to the oilfields evaluation. Along with the increasing exploration in Bohai bay and effective implement of project of cnooc’s oil and gas exploration and development,exploration of large and middle Bohai Bay basin will be paid more and more attention in the near future. But,some ambiguous understandings of development extent of reservoirs are the key factor to deal with the problems of exploration of Bohai Bay basin.In this paper,I will apply reservoir prediction technique to bz19-21 area in the western of Bohai bay,aiming at exploration of different reservoirs varies. Through summarizing comprehensive this technique,it guides us to do reservoir research on comparable structure. The reservoir technique used here include reservoir inverse,seismic attribution,multiple attribution clustering analyses and spectral decomposition.更多还原