VSP polarization angles determination: Wysin-1 processing case study

Acta Geophysica

Mateusz Zaręba¹  Tomasz Danek² 

[1] AGH UST;Geofizyka Toruń S.A.

关键词: Walkaway VSP;    Polarization;    Signal processing;    S/N ratio;    Azimuth and inclination;   

DOI  :  10.1007/s11600-018-0200-8

学科分类：地球科学(综合)

来源: Polska Akademia Nauk * Instytut Geofizyki

【 摘 要 】

In this paper, we present an analysis of borehole seismic data processing procedures required to obtain high-quality vertical stacks and polarization angles in the case of walkaway VSP (vertical seismic profile) data gathered in challenging conditions. As polarization angles are necessary for more advanced procedures like anisotropy parameters determination, their quality is critical for proper media description. Examined Wysin-1 VSP experiment data indicated that the best results can be obtained when rotation is performed for each shot on data after de-noising and vertical stacking of un-rotated data. Additionally, we proposed a procedure of signal matching that can substantially increase data quality.

【 授权许可】

Unknown