Method and system for enabling at surface core orientation data transfer

A method of enabling at surface orientation data transfer from 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, the method comprising:

• when the inner core tube is at the surface, coupling an instrument guide having a guide axis to the end of the core tube from which the core face is accessible and opposite the contactless orientation system wherein the guide axis is parallel to the core axis;
• generating correlation information between a rotational orientation of a known point on the instrument guide or an instrument supported by the instrument guide about the guide axis with core orientation data known to the contactless orientation system;
• and
• using the instrument 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.