Resumo

ESTEBAN, F.D  e  ESTEBAN, A.H. Informatic applications to generate and fix navigation files and seismic records (Segy). Geoacta [online]. 2015, vol.40, n.1, pp.1-9. ISSN 1852-7744.

We present five programs written in the JAVA language with two purposes in mind. The first allows one to elaborate navigation files in an effective and rapid way to be used when the Segy files lack navigation data. These programs create navigation files compatible with the Kingdom Suite and the Generic Mapping Tools (GMT) from a database of the seismic line locations and their respective shot point numbers. It also calculates statistical data (total length, shot point equidistance) for each file generated, which helps determine the quality of the navigation data sources and compare among them for multiple files. The second set of programs allows one to fix two types of errors identified in the Segy files. The first is characterized by an offset within the seismic section that was attributed to lack of data in the trace just previous the offset. For second error the files were totally illegible and it is assumed that the beginning of the seismic section was somewhere in the middle of the file.

Palavras-chave : Seismic; Navigation; JAVA; Segy files; Scientific software.

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