CORE ORIENTATION SYSTEM

摘要

A core sample orientation system is configured to provide an indication of the orientation of a core sample relative to a body of material from which the core has been recovered. A hermetically sealed core sample orientation data gathering device 42 is deployable as part of a downhole core sample assembly, the device including communication means arranged to communicate obtained core sample orientation data to a remote orientation data indication display device 60 having an orientation data display. The data gathering device can have visual indicators 74,76, such as LED lights, which may light a reflector 86 to emit the indicating light through one or more apertures 84 in a sidewall of the assembly. Also disclosed is a method of obtaining core sample orientation data includes deploying a core sample orientation data gathering device as part of a core sample gathering system, obtaining a core sample from a subsurface body of material using the orientation data gathering device, using the orientation data gathering device to determine the orientation of the core sample relative to the subsurface body of material, and using a remote communication device to obtain from said orientation data gathering device data relating to the orientation of the core sample. 34 Is 34ck Fig 3 4-11 0 1 ------------ I0 'IS Fig 4