Methods and systems for recording and processing well logging data

Claim 1

IN A BOREHOLE INVESTIGATING SYSTEM WHEREIN A MEASURING DEVICE IS MOVED THROUGH THE BOREHOLE BY MEANS OF A CABLE SUSPENDED FROM THE SURFACE OF THE EARTH, THE COMBINATION COMPRISING: FIRST AND SECOND MEASURING WHEELS ADAPTED TO ENGAGE THE CABLE AND BE ROTATED BY MOVEMENT THEREOF; A PHOTOGRAPHIC RECORDER FOR RECORDING THE SIGNALS DEVELOPED BY THE MEASURING DEVICE ON A PHOTOSENSITIVE RECORDING MEDIUM; LINKAGE MEANS COUPLING THE FIRST MEASURING WHEEL TO THE PHOTOGRAPHIC RECORDER FOR MOVING THE PHOTOSENSITIVE RECORDING MEDIUM IN SYNCHRONISM WITH THE MOVEMENT OF THE MEASURING DEVICE THROUGH THE BOREHOLE; PAPER TAPE RECORDING MEANS FOR RECORDING INDICATIONS OF THE MEASURING DEVICE SIGNALS ON A PAPER RECORDING TAPE; LOW-TORQUE PULSE GENERATING MEANS COUPLED TO THE SECOND MEASURING WHEEL FOR PRODUCING SYNCHRONIZING PULSES REPRESENTATIVE OF THE MOVEMENT OF THE MEASURING DEVICE THROUGH THE BOREHOLE; AND MEANS FOR SUPPLYING THE SYNCHRONIZING PULSES TO THE PAPER TAPE RECORDING MEANS FOR STEPPING THE PAPER RECORDING TAPE IN SYNCHRONISM WITH THE MOVEMENT OF THE MEASURING DEVICE THROUGH THE BOREHOLE.

Claim 2

A METHOD OF INVESTIGATION FOR BOREHOLES DRILLED INTO THE EARTH COMPRISING: PLACING DISTINGUISHABLE FIRST AND SECOND SETS OF CONTROL INDICATIONS AT DIFFERENT LONGITUDINAL LOCATIONS ALONG A LENGTH OF RECORDING TAPE; MOVING AN INVESTIGATING SYSTEM INCLUDING A MEASURING DEVICE THROUGH THE BOREHOLE FOR DEVELOPING A FIRST SIGNAL REPRESENTATIVE OF A SUBSURFACE CONDITION; SUPPLYING A SECOND SIGNAL REPRESENTATIVE OF FURTHER QUANTITY OF INTEREST; ADVANCING THE PORTION OF THE RECORDING TAPE HAVING THE CONTROL INDICATIONS THEREON IN SYNCHRONISM WITH THE MOVEMENT OF THE INVESTIGATING SYSTEM THROUGH THE BOREHOLE; RECORDING INDICATIONS OF THE FIRST SIGNAL ON THE RECORDING TAPE AT LOCATIONS DETERMINED BY THE FIRST CONTROL INDICATIONS; AND RECORDING INDICATIONS OF THE SECOND SIGNAL ON THE RECORDING TAPE AT LOCATIONS DETERMINED BY THE SECOND CONTROL INDICATIONS, THEREBY TO PROVIDE A COMPOSITE TAPE RECORD OF THE TWO SIGNALS.