Bore hole tool orienting apparatus and systems

Claim 1

APPARATUS FOR ORIENTING A TOOL IN A BORE HOLE COMPRISING: (A) A DOWN-HOLE ASSEMBLY INCLUDING A FIRST SECTION AND A SECOND SECTION; (B) ABOVE-GROUND EQUIPMENT, AND A DOWN-HOLE SIGNAL SOURCE; (C) MEANS FOR DISPOSING SAID DOWN-HOLE ASSEMBLY WITHIN THE BORE HOLE AT A DESIRED DEPTH; (D) MEANS INCLUDED IN SAID DOWN-HOLE ASSEMBLY FOR PREVENTING ROTATION OF SAID FIRST SECTION RELATIVE TO THE BORE HOLE AND FOR ROTATING SAID SECOND SECTION RELATIVE TO SAID FIRST SECTION; (E) DETECTOR MEANS INCLUDED IN SAID SECOND SECTION AND RESPONSIVE TO SAID DOWN-HOLE SIGNAL SOURCE, FOR GENERATING SIGNALS INDICATIVE OF AN AZIMUTHAL PATTERN; (F) A TOOL TO BE ORIENTED INCLUDED IN SAID SECOND SECTION; (G) MEANS INCLUDED IN SAID DOWN-HOLE ASSEMBLY FOR GENERATING ORIENTATION SIGNALS WHICH ARE POSITIVELY RELATED TO AZIMUTHAL POSITIONS OF SAID DETECTOR (H) SAID ORIENTATION SIGNAL GENERATING MEANS INCLUDING MEANS TO INTERPOSE IN A SEQUENTIAL TRAIN OF SAID ORIENTATION SIGNALS A PERIODICALLY RECURRING IDENTIFIABLE ANOMALY; (I) MEANS FOR TRANSMITTING SIGNALS DERIVED FROM SAID DETECTOR, AND SAID ORIENTATION SIGNALS TO SAID ABOVEGROUND EQUIPMENT; (J) AND MEANS INCLUDED IN SAID ABOVE-GROUND EQUIPMENT FOR RECORDING SAID SIGNALS.