Geology, geography and global energy

Scientific and Technical Journal

Seismic survey resolution enhancement methods

2018. №3, pp. 63-70

Vyazovkina E.O. - post-graduate student, Samara State Technical University, 244 Molodogvardeyskaya st., Samara, 443100, Russian Federation,

When performing seismic works CDP-3d, studies are performed using signals in a sufficiently narrow frequency range 7-120 Hz. In this case, the signal period T = 17 ms and wavelength О» = Tв€™V = 0,017 sв€™4000 m / s = 68 m (at the rate of propagation of elastic waves equal to 4000 m / s in terrigenous sequence). At such length of a wave it is possible sure the tracing of layers in the thickness h = О» / 4 = 68 m / 4 = 17 m and more. Unfortunately, in the territory of the Samara region wide spread are low layers-collectors, thickness less than 17 m. Therefore, methods that increase the resolution of seismic data are becoming increasingly important at the time of seismic works. The purpose of the presented work is the review of the most effective methods, providing the use of software complexes, and their analysis, which allows to outline the prospects of development of the technology of detection of low seams in the interpretation Seismic data.

Key words: сейсморазведка, разрешающая способность, гилберт-преобразование, сейсмические атрибуты, seismic survey, resolution power, Gilbert-reconstitution, seismic attributes