Well logging

Claim 1

AN APPARATUS FOR SEISMIC VELOCITY BOREHOLE LOGGING COMPRISING: A FIRST AND SECOND RECEIVER VERTICALLY SPACED ALONG SAID BOREHOLE; TRANSMITTER MEANS FOR PRODUCING AN ACOUSTICAL IMPULSE AT A POINT VERTICALLY SPACED FROM SAID FIRST AND SECOND RECEIVERS; CIRCUIT MEANS CONNECTING BOTH SAID TRANSMITTER MEANS TO A POWER SUPPLY LOCATED AT THE SURFACE AND SAID FIRST AND SECOND RECEIVERS TO A RECORDING MEANS LOCATED ON THE SURFACE, SAID CIRCUIT MEANS INCLUDING A MULTI-CONDUCTOR CABLE, A FIRST PAIR OF CONDUCTORS OF SAID CABLE BEING CONNECTED TO SAID FIRST RECEIVER, A SECOND PAIR OF CONDUCTORS OF SAID CABLE BEING CONNECTED TO SAID SECOND RECEIVER, A THIRD PAIR OF CONDUCTORS OF SAID CABLE BEING CONNECTED TO SAID TRANSMITTER, SAID FIRST PAIR OF CONDUCTOR BEING DISPOSED IN BOTH A BALANCE AND SUBSTANTIALLY PARALLEL UNTWISTED RELATIONSHIP WITH RESPECT TO SAID SECOND PAIR OF CONDUCTORS AND SAID THIRD PAIR OF CONDUCTOR BEING DISPOSED IN BOTH A BALANCED AND SUBSTANTIALLY PARALLEL UNTWISTED RELATIONSHIP WITH RESPECT TO SAID FIRST AND SECOND PAIR OF CONDUCTORS.

Claim 2

AN APPARATUS FOR SEISMIC VELOCITY BOREHOLE LOGGING COMPRISING: A FIRST AND SECOND RECEIVER VERTICALLY SPACED ALONG SAID BOREHOLE; TRANSMITTER MEANS FOR PRODUCING AN ACOUSTICAL IMPULSE AT A POINT VERTICALLY SPACED FROM SAID FIRST AND SECOND RECEIVERS; CIRCUIT MEANS CONNECTING BOTH SAID TRANSMITTER MEANS TO A POWER SUPPLY LOCATED AT THE SURFACE AND SAID FIRST AND SECOND RECEIVERS TO A RECORDING MEANS LOCATED ON THE SURFACE, SAID CIRCUIT MEANS INCLUDING A MULTI-CONDUCTOR CABLE, A FIRST PAIR OF CONDUCTORS OF SAID CABLE BEING CONNECTED TO SAID FIRST RECEIVER, A SECOND PAIR OF CONDUCTORS OF SAID CABLE BEING CONNECTED TO SAID SECOND RECEIVER, A THIRD PAIR OF CONDUCTORS OF SAID CABLE BEING CONNECTED TO SAID TRANSMITTER, SAID FIRST PAIR OF CONDUCTOR BEING DISPOSED IN BOTH A BALANCE AND SUBSTANTIALLY PARALLEL UNTWISTED RELATIONSHIP WITH RESPECT TO SAID SECOND PAIR OF CONDUCTORS AND SAID THIRD PAIR OF CONDUCTOR BEING DISPOSED IN BOTH A BALANCED AND SUBSTANTIALLY PARALLEL UNTWISTED RELATIONSHIP WITH RESPECT TO SAID FIRST AND SECOND PAIR OF CONDUCTORS.

Claim 3

AN APPARATUS FOR SIMULTANEOUSLY TRANSMITTING AT LEAST A PORTION OF AT LEAST TWO INDIVIDUAL ELECTRICAL SIGNALS OVER A SINGLE MULTI-CONDUCTOR CABLE COMPRISING: A MULTICONDUCTOR CABLE HAVING SIX INDIVIDUAL CONDUCTORS DISPOSED IN A HEXAGONAL SPACING; ALL SAID INDIVIDUAL CONDUCTORS BEING DISPOSED IN A SUBSTANTIALLY PARALLEL UNTWISTED RELATIONSHIP; A FIRST TRANSMISSION CIRCUIT FORMED BY A FIRST PAIR OF DIAMETRICALLY OPPOSED CONDUCTORS IN SAID CABLE; A SECOND TRANSMISSION CIRCUIT FORMED BY A SECOND PAIR OF CONDUCTORS IN SAID CABLE, SAID SECOND PAIR OF CONDUCTORS BEING LOCATED ON THE CORNERS OF THE HEXAGON ADJACENT ONE OF THE CONDUCTORS OF THE FIRST PAIR; ONE OF SAID SIGNALS BEING TRANSMITTED OVER THE FIRST CIRCUIT AND THE OTHER OF SAID SIGNALS BEING TRANSMITTED OVER THE SECOND CIRCUIT.

Claim 4

AN APPARATUS FOR SIMULTANEOUSLY TRANSMITTING AT LEAST A PORTION OF AT LEAST TWO INDIVIDUAL ELECTRICAL SIGNALS OVER A SINGLE MULTI-CONDUCTOR CABLE COMPRISING: A MULTICONDUCTOR CABLE HAVING SIX INDIVIDUAL CONDUCTORS DISPOSED IN A HEXAGONAL SPACING; ALL SAID INDIVIDUAL CONDUCTORS BEING DISPOSED IN A SUBSTANTIALLY PARALLEL UNTWISTED RELATIONSHIP; A FIRST TRANSMISSION CIRCUIT FORMED BY A FIRST PAIR OF DIAMETRICALLY OPPOSED CONDUCTORS IN SAID CABLE; A SECOND TRANSMISSION CIRCUIT FORMED BY A SECOND PAIR OF CONDUCTORS IN SAID CABLE, SAID SECOND PAIR OF CONDUCTORS BEING LOCATED ON THE CORNERS OF THE HEXAGON ADJACENT ONE OF THE CONDUCTORS OF THE FIRST PAIR; ONE OF SAID SIGNALS BEING TRANSMITTED OVER THE FIRST CIRCUIT AND THE OTHER OF SAID SIGNALS BEING TRANSMITTED OVER THE SECOND CIRCUIT.