Seismic vibratory acquisition method and apparatus

摘要

A method and related apparatus are described for generating acoustic signals for use in a vibratory seismic survey, including at least two different sweep signals for the control of at least two different types of vibrators; and matching the phases of the different sweep signals at a transition frequency from one sweep signal to another.

主权项

1. A vibratory source comprising at least one vibrator responsive to a lower sweep signals of a lower frequency content and at least one vibrator responsive to a higher sweep signals of higher frequency content, wherein the sweep signals and resulting waves signals injected by the vibrators into the ground are essentially phase matched at a transition frequency from one sweep signal to another.