Patent ID: 6028818
Filing Date: 2000-02-22
Classification: G01V

Abstract:
A method for acquiring seismic signal data, comprising the steps of:arranging at least a first, second and third vibratory source at a first, second and third location respectively, each of the locations in a line with each of said sources being approximately equally spaced an inter-source distance from each other;initiating a first operating cycle by initiating sweeping of said sources approximately simultaneously while said first, second and third sources are at the first, second and third locations respectively; and thereafteradvancing said sources by said inter-source distance in a direction parallel to the line such that the first source is approximately in the second location, the second source is approximately in the third location, and the third source is in a fourth location; andinitiating a second operating cycle by initiating sweeping of said sources approximately simultaneously while said first, second and third sources are approximately at the second, third and fourth locations respectively.