辽河地区地震数据处理系统的设计与实现

发布时间：2018-12-17 01:34

【摘要】：辽河油田地震工区跨度大,浅层地震地质条件和深层地质特性决定了大部分区块原始地震数据信噪比较低。近几年,为了提高地震数据品质,满足辽河油田在小断块、复杂构造和岩性油气藏等勘探的要求,辽河油田在提高处理特色技术的同时,也迫切需要开发自主特色的地震数据处理系统。本文做的主要研究工作如下:1.从面向对象设计的角度出发,按照辽河地区勘探任务的具体要求,地震方案设计的相关规定对地震项目概况、系统需求分析、设计原则和系统和架构设计和功能结构设计,对辽河油田地震数据处理系统进行了实现。2.针对辽河地区地震数据的特点,本文分析了地震数据处理系统的需求,对处理系统用户界面、文件管理模块、数据库、SVD去噪方法及特色处理模块进行了设计。具体设计实现的功能包括静校正、振幅补偿、叠前噪音去除、提高地震数据的信噪比、分辨率等处理环节。3.通过测试系统的测试,系统展示了良好性能,尤其在静校正、振幅补偿、叠前噪音去除等处理环节都体现了软件的独到之处,特别是提高地震数据信噪比、分辨率方面,有其特殊先进的功能模块。辽河地区地震数据处理系统具有以下几点优势:处理后的信噪比明显提高;叠加剖面上的断层清楚、断点可靠;波组特征清晰,分辨率较高。4.实际处理应用中,该系统还充分体现了技术、平台优势,同时系统的准确性及操作的简洁性等都有很好凸显。但是,该系统中去噪处理模块的优势没能充分展现,还需要改进和完善。
[Abstract]:The seismic work area of Liaohe Oilfield has a large span and the shallow seismic geological conditions and deep geological characteristics determine the low signal-to-noise ratio of the original seismic data in most blocks. In recent years, in order to improve the quality of seismic data and meet the requirements of Liaohe oil field exploration in small fault blocks, complex structures and lithologic reservoirs, Liaohe Oilfield has improved the processing characteristics at the same time. There is also an urgent need to develop a seismic data processing system with its own characteristics. The main research work of this paper is as follows: 1. From the point of view of object-oriented design, according to the specific requirements of exploration mission in Liaohe area, the relevant provisions of seismic scheme design are applied to the general situation of seismic project, system requirement analysis, design principle, system and architecture design and functional structure design. The seismic data processing system of Liaohe Oilfield is implemented. According to the characteristics of seismic data in Liaohe area, this paper analyzes the requirements of seismic data processing system, and designs the user interface, file management module, database, SVD denoising method and characteristic processing module of the processing system. The designed functions include static correction amplitude compensation prestack noise removal improving signal-to-noise ratio of seismic data resolution and other processing links. 3. Through the test of the test system, the system has shown good performance, especially in static correction, amplitude compensation, pre-stack noise removal and other processing links all reflect the unique features of the software, especially to improve the signal-to-noise ratio of seismic data, resolution, etc. Has its special advanced function module. The seismic data processing system in Liaohe area has the following advantages: the signal-to-noise ratio (SNR) is obviously improved after processing; the fault is clear and the fault point is reliable on the stacking section; the wave group features are clear and the resolution is high. 4. In practical application, the system also fully reflects the advantages of technology and platform, and the accuracy and simplicity of the system are well highlighted. However, the advantages of the denoising module in the system are not fully displayed, and need to be improved and improved.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP311.52

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