英台—大安地区黑二段地震解释与储层预测

发布时间：2018-01-05 18:02

本文关键词：英台—大安地区黑二段地震解释与储层预测　出处：《东北石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：本论文以层序地层学、构造地质学、地震储层预测理论为指导,通过对黑帝庙油层黑二段的地震、测井资料的综合分析应用,完成了该研究区的构造特征和储层特征的研究。在本次研究中,通过对黑帝庙油层黑二段地震资料和测井资料的结合,以合成地震记录为桥梁,完成了H21、H22、H23三个反射界面的追踪对比解释,并在此基础上编制了相应的构造图,初步研究了该研究区黑二段的构造特征。依据地震剖面断层解释原则,并结合相干体与三维可视化等方法手段,对该工区黑二段地层进行断层识别,综合分析黑二段构造特征。通过分析本研究区的构造特征、沉积背景和储层特点,对黑二段区块进行反演预测工作。在资料预处理的基础上,结合曲线敏感性分析,以频率补偿原理进行曲线重构反演,从而预测砂体分布特征。通过对黑二段地震属性、砂体分布、沉积特征、物性的研究,建立起储层预测研究思路并预测有利井位。区内断裂十分发育,规模较大的断裂主要分布研究区西南部,走向为北西向为主,有利区主要分布在西部构造高部位,断裂发育,岩性上倾、侧向尖灭明显,是烃源岩油气的有利运移位置,在地震反演切片、甜点属性和频谱分解地震属性表明,地震属性在研究区中部自西北向东南发育一贯穿全区的长条状属性异常组合,反演结果表明黑二段油层属于三角洲外前缘沉积体系为主,个别发育滨浅湖相沉积,砂岩相对较发育,储层物性差,形成了现今的砂岩油气储集层。
[Abstract]:This paper is guided by sequence stratigraphy, structural geology and seismic reservoir prediction theory, through the comprehensive analysis and application of the seismic and logging data of Heidimiao oil formation. The structural characteristics and reservoir characteristics of the study area have been studied. In this study, through the combination of seismic data and logging data of the Heidimiao oil reservoir, the synthetic seismic record is used as a bridge to complete H21. On the basis of tracing and contrast interpretation of the three reflection interfaces of H22 and H23, the corresponding structural maps are compiled, and the structural characteristics of the second member of Heihe formation in the study area are preliminarily studied, according to the principle of seismic section fault interpretation. Combined with coherence and 3D visualization methods, fault identification and comprehensive analysis of the structural characteristics of the Hejie formation in this area. Through the analysis of the structural characteristics of the study area, sedimentary background and reservoir characteristics. On the basis of data preprocessing and curve sensitivity analysis, the inversion of curve reconstruction is carried out with the principle of frequency compensation. Based on the study of seismic attributes, sand body distribution, sedimentary characteristics and physical properties of the second member of Heihe formation, the reservoir prediction and prediction of favorable well location are established. The faults in the area are well developed. The large scale faults are mainly distributed in the southwest of the study area, with the strike of NW as the main direction, and the favorable areas mainly distributed in the high part of the structure in the west, the faults are developed, the lithology is inclined up, and the lateral pinnacles are obvious. It is the favorable migration position of hydrocarbon source rock in seismic inversion section, desserts attribute and spectrum decomposition seismic attribute. The seismic attributes developed from northwest to southeast in the middle of the study area. The inversion results show that the oil layer of the second member of the Heihe formation belongs to the depositional system of the outer delta front. Some developed shallow lacustrine facies, the sandstone is relatively developed, and the reservoir physical property is poor, forming the present sandstone oil and gas reservoir.
【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;P631.4

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