Patent ID: 6079505
Filing Date: 2000-06-27
Classification: E21B

Abstract:
An assembly for acquiring information relating to a drill string while drilling in a well bore during a drilling operation, the assembly comprising:a first and a second measuring means each comprising at least one sensor with each sensor producing measurement signals representing sensed information, one of said measuring means being located on the drill string substantially at a surface of the well bore and the other measuring means being located on the drill string in a vicinity of a tool disposed at a lower end of the drill string;linking means including an electrical cable, said linking means being disposed between each of said sensors and a processing installation for processing the measurement signals supplied by said sensors and conveyed by said electrical cable of said linking means to the processing installation; and whereinsaid processing installation comprises means for processing of said measurement signals so that acquiring of said measurement signals from said first and second measuring means is synchronized in time.