INITIALIZATION OF AZIME AND CALIBRATION OF GYROSCOPIC AND INERTIAL INSTRUMENTS FOR RESEARCH OF THE BOTTOM OF THE WELL BY MEANS OF THE EXTERNAL NAVIGATION SYSTEM

摘要

A system and method for initializing the azimuth of a gyroscopic and / or inertial device for studying a wellbore are described, wherein said system comprises a rigid support structure to which a gyroscopic and / or inertial device is rigidly attached; an external navigation system to obtain an azimuth measurement as a function of time, while the rigid support structure provides a rigid orientation between the external navigation system and the gyroscopic and / or inertial device; a processor capable of synchronizing the measurement of azimuth as a function of time with orientation as a function of time of a gyroscopic and / or inertial device.