METHOD AND SYSTEM FOR ENABLING AT SURFACE CORE ORIENTATION DATA TRANSFER

A method and apparatus of enabling at surface orientation data transfer having a contactless orientation system coupled with an inner core tube to one or more record carriers on or associated with a core sample held in the core tube, the core sample having a longitudinal core axis and a core face accessible from an end of the inner core tube. An instrument guide is coupled to the end of the core tube from which the core face is accessible so that an axis of the guide is parallel to the core axis. Correlation information is generated between a rotational orientation of a known point P on the instrument guide or an instrument supported by the instrument guide about the guide axis and core orientation data known to the contactless orientation system. The instrument is used or operated to act as the record carrier; or generate the record carrier provided with the correlation information enabling orientation of the core sample to its in-situ orientation when released from the core tube.