Drill bit-mounted data acquisition systems and associated data transfer apparatus and method

摘要

A data acquisition module comprising a base sized and configured for disposition within a shank of a drill bit bore and an extension protruding therefrom having electrical contacts on an exterior surface thereof for connection to electrical contacts on an interior surface of a sub secured to the bit shank. A drill bit equipped with a data acquisition module, a bottom hole assembly including a drill bit bearing a data acquisition module operably coupled to a sub secured to the drill bit, and a method of transferring data from a data acquisition module carrying a data acquisition module to a sub secured to the drill bit.

主权项

1. A data acquisition module comprising:
a base configured for disposition within a bore of drill bit shank, the base comprising a body, a flange of a diameter protruding radially from proximate a lower end of the body and bearing a peripheral sealing ring, another flange of a greater diameter protruding radially from proximate an upper end of the body and bearing another peripheral sealing ring; an extension protruding upwardly from the other flange, of substantially the greater diameter of the other flange, bearing no peripheral sealing ring thereon and having electrical contacts on a peripheral exterior surface thereof; a longitudinal bore extending through the base and the extension; an electronics module carried by the base above the flange and operably coupled to the electrical contacts of the extension; and an elongated communication element extending from the electronics module radially outwardly of the peripheral sealing ring and to a location below the flange.