基于Qt和动态链接库的SEG-Y格式地震数据读写软件开发

Development of Software for Reading and Writing SEG-Y Format Seismic Data Based on Qt and DLL

SEG-Y格式是国际通用的地震数据文件格式。针对该格式文件结构复杂、读取困难的问题,在Qt框架下采用动态链接库技术开发了可重用的SEG-Y格式地震数据读写软件。该软件首先读取文件头和道头信息,然后以人机交互方式设置相应参数,最后读取实际地震数据。测试结果表明,该软件能正确读写SEG-Y格式地震数据文件,并以动态链接库的形式供第三方使用,为地震数据处理解释软件的国产化提供支持。

SEG-Y format is a format of internationally universal seismic data file.For the issue of its complicated structure and difficulty of reading,a reusable software is developed to read and write the SEG-Y format seismic data based on the Qt framework and Dynamic Link Library(DLL)technique.The software reads file header and trace header firstly,then sets the parameters with human-computer interface,and reads the actual seismic data finally.The test result shows that the software can read and write the SEG-Y format seismic data correctly,and it can be reused by the third-party software developers in the form of DLL.It can provide the support for the localization of the seismic data processing and interpretation software.