método para obter dados acústicos, método para obter dados sísmicos utilizando uma ferramenta durante a perfuração, método para obter dados sísmicos, e sistema para obter dados sísmicos.

摘要

A technique is designed to facilitate obtaining of acoustic data. The technique comprises traversing a tool through a subterranean formation from a first depth to subsequent depths. The tool receives a seismic signal during pre-determined time windows. The seismic signal is generated by a seismic source which is activated at varying times relative to the predetermined time windows based on the depth of the tool.