地震资料道集流设计及自动代码生成研究

发布时间：2018-08-05 18:09

【摘要】：近年来,随着海上三维高密度地震勘探技术的快速发展,海量地震资料处理也变得越来越复杂。为了提高数据存取效率,根据不同的软硬件运行环境,处理人员需要对数据流进行调整,并修改数据操作模块的代码。这导致流程调整周期长,难以快速找到优化数据存取效率的方法,同时因为每次调整数据流都要进行新的代码修改,增加了软件开发的成本。因此,如何提高地震资料处理系统软件中数据存取模块的开发效率成为目前急需解决的问题。为了解决上述问题,本文通过分析地震数据流的特点,建立一种地震资料道集流并行模型;依据该模型设计一种可视化道集流描述语言,使用户可以对地震资料道集流图按照需要进行制定,并生成标准的道集流图描述文件;通过对道集流图描述文件的解析和拆分,生成可编译执行的代码。地震资料道集流设计及自动代码生成技术的研究成功,不仅可以有效地提高海量数据的输入输出存取速率,而且可以降低海量地震资料处理软件的开发复杂性,方便用户对设计不同的数据流动线路进行快速的效率验证。本论文具体研究内容如下:1.研究基于道集流的地震数据存取特点,设计地震资料道集流模型:分析基于道集流的地震数据存取特点,总结数据流的基本要素,包括地震数据处理、地震数据流动、地震数据存取、数据关系和数据元素等,构建地震资料数据流(以下简称道集流)模型,并进行形式化描述。在此基础上,研究道集数据存取效率的分析方法。2.研究道集流的可视化设计方法:利用UML语言的可扩展机制和UML活动图中的图形元素,根据道集流模型,对UML的语义、符号进行扩展,并利用现有的UML建模工具Visio,建立道集流图设计环境,实现道集流模型的可视化。3.研究地震资料处理系统的道集流控制模块代码自动生成方法:利用道集流可视化设计工具,用户设计具体的地震资料道集流图。通过解析道集流图,生成按照道集流图进行数据存取的代码。编译运行生成的代码,即可按数据流图的设计路线进行数据存取。最后综合本文的研究内容,阐述了地震资料道集流设计及代码自动生成的实现情况,测试数据存取的效率,并进行对比分析,以此来验证本文提出的相关优化技术和方法的可行性和有效性。
[Abstract]:In recent years, with the rapid development of 3D high density seismic exploration technology, massive seismic data processing has become more and more complex. In order to improve the efficiency of data access, according to the different software and hardware environment, the processor needs to adjust the data flow and modify the code of the data operation module. As a result, it is difficult to find a method to optimize the efficiency of data access because of the long period of process adjustment. At the same time, the cost of software development is increased because new code changes are required for each adjustment of data flow. Therefore, how to improve the development efficiency of data access module in seismic data processing system software has become an urgent problem. In order to solve the above problems, a parallel model of seismic data stream gathering is established by analyzing the characteristics of seismic data stream, and a visual trace gathering description language is designed according to the model. The user can make the trace flow diagram of seismic data according to the need, and generate the standard trace flow graph description file, and generate the code that can be compiled and executed by parsing and splitting the trace collection diagram description file. The successful research of seismic data collection design and automatic code generation technology can not only effectively improve the input and output access rate of massive data, but also reduce the complexity of the development of massive seismic data processing software. It is convenient for users to verify the efficiency of designing different data flow lines. The content of this thesis is as follows: 1. This paper studies the characteristics of seismic data access based on trace gathering, designs the seismic data gathering model: analyzes the characteristics of seismic data access based on trace gathering, summarizes the basic elements of data flow, including seismic data processing, seismic data flow, Seismic data access, data relations and data elements are used to construct the seismic data stream model (hereinafter referred to as "gather flow") and describe it formally. On this basis, the analysis method of data access efficiency of gathers. 2. 2. The visual design method of trace gathering flow is studied. The extensible mechanism of UML language and the graphic elements in UML activity diagram are used to extend the semantics and symbols of UML according to the channel gathering model. By using the existing UML modeling tool Visio, the design environment of trace gathering graph is established to realize the visualization of channel gathering model. 3. This paper studies the automatic code generation method of the track collecting control module of seismic data processing system: by using the track collection visual design tool, the user designs the concrete seismic data trace collection diagram. The code of data access is generated by analyzing the trace flow graph. Compile the generated code and access the data according to the design route of the data flow diagram. Finally, by synthesizing the research contents of this paper, the realization of seismic data collection design and code automatic generation, the efficiency of test data access, and the comparison and analysis are discussed. In order to verify the feasibility and effectiveness of the related optimization techniques and methods proposed in this paper.
【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】：P631.4;TP311.52

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