Methods and apparatuses for seismic exploration

Claim 1

A SYSTEM FOR SEISMIC PROSPECTING COMPRISING: A NUMBER OF PULSER; EACH OF SAID PULSERS COMPRISING, A HOUSING HAVING A TOP AND INTEGRAL SIDE WALLS, AN OPEN FACE OPPOSITE SAID TOP HAVING AN AREA LARGE IN RELATION TO THE MAXIMUM HORIZONTAL AREA BOUNDED BY SAID SIDE WALLS TO BE DISPOSED ON THE GROUND, AND BEING HEAVILY WEIGHTED FOR FIRM CONTACT WITH THE GROUND, A FLEXIBLE, FLUID TIGHT DIAPHRAGM OVER SAID FACE, SECURED IN FLUID TIGHT RELATION TO SAID HOUSING AND SITUATED THEREON FOR PLACEMENT IN SOLID PRESSURETRANSMITTING RELATION TO THE GROUND, A SUBSTANTIALLY INCOMPRESSIBLE LIQUID IN SAID HOUSING, AN EXPLODING ELECTRIC PLASMA FIRING MEANS DISPOSED IN SAID HOUSING TO RECEIVE A HIGH ELECTRIC CURRENT THE CAUSES A PRESSURE IMPULSE IN SAID LIQUID TO BE COUPLED THROUGH SAID DIAPHRAGM TO THE GROUND FOR TRANSMISSION TO A SEISMIC RECEIVER; SEPARATE ELECTRICAL POWER SUPPLY MEANS FOR EACH PULSER FOR SUPPLYING A HIGH ELECTRIC CURRENT TO SAID EXPLODING ELECTRIC PLASMA FIRING MEANS IN EACH OF SAID PULSERS; MEANS AT EACH PULSER RESPONSIVE TO A FIRING SIGNAL FOR TRIGGERING SAID CURRENT SUPPLY MEANS TO TRANSFER SAID HIGH CURRENT TO SAID EXPLODING ELECTRIC PLASMA FIRING MEANS, CREATING THE PRESSURE IMPULSE AT A PRECISE TIMES; EACH SAID HOUSING BEING SHAPED TO CONCENTRATE THE PRESSURE IMPULSE IN THE DIRECTION OF SAID OPEN FACE AND TO THE GROUND THROUGH SAID DIAPHRAGM THEREOF; MEANS FOR GENERATING A FIRING SIGNAL, SAID MEANS BEING COUPLED TO EACH OF SAID TRIGGERING MEANS AND INCLUDING CONTROL MEANS FOR CONTROLLING THE ARRIVAL OF SAID FIRING SIGNAL AT EACH OF SAID TRIGGERING MEANS AND, THEREBY, THE FIRING TIMES OF SAID PULSERS; AND MEANS FOR RECEIVING AND RECORDING THE SEISMIC WAVE PRODUCED BY SAID PULSERS.

Claim 2

A SYSTEM FOR SEISMIC PROSPECTING COMPRISING: A NUMBER OF PULSER; EACH OF SAID PULSERS COMPRISING, A HOUSING HAVING A TOP AND INTEGRAL SIDE WALLS, AN OPEN FACE OPPOSITE SAID TOP HAVING AN AREA LARGE IN RELATION TO THE MAXIMUM HORIZONTAL AREA BOUNDED BY SAID SIDE WALLS TO BE DISPOSED ON THE GROUND, AND BEING HEAVILY WEIGHTED FOR FIRM CONTACT WITH THE GROUND, A FLEXIBLE, FLUID TIGHT DIAPHRAGM OVER SAID FACE, SECURED IN FLUID TIGHT RELATION TO SAID HOUSING AND SITUATED THEREON FOR PLACEMENT IN SOLID PRESSURETRANSMITTING RELATION TO THE GROUND, A SUBSTANTIALLY INCOMPRESSIBLE LIQUID IN SAID HOUSING, AN EXPLODING ELECTRIC PLASMA FIRING MEANS DISPOSED IN SAID HOUSING TO RECEIVE A HIGH ELECTRIC CURRENT THE CAUSES A PRESSURE IMPULSE IN SAID LIQUID TO BE COUPLED THROUGH SAID DIAPHRAGM TO THE GROUND FOR TRANSMISSION TO A SEISMIC RECEIVER; SEPARATE ELECTRICAL POWER SUPPLY MEANS FOR EACH PULSER FOR SUPPLYING A HIGH ELECTRIC CURRENT TO SAID EXPLODING ELECTRIC PLASMA FIRING MEANS IN EACH OF SAID PULSERS; MEANS AT EACH PULSER RESPONSIVE TO A FIRING SIGNAL FOR TRIGGERING SAID CURRENT SUPPLY MEANS TO TRANSFER SAID HIGH CURRENT TO SAID EXPLODING ELECTRIC PLASMA FIRING MEANS, CREATING THE PRESSURE IMPULSE AT A PRECISE TIMES; EACH SAID HOUSING BEING SHAPED TO CONCENTRATE THE PRESSURE IMPULSE IN THE DIRECTION OF SAID OPEN FACE AND TO THE GROUND THROUGH SAID DIAPHRAGM THEREOF; MEANS FOR GENERATING A FIRING SIGNAL, SAID MEANS BEING COUPLED TO EACH OF SAID TRIGGERING MEANS AND INCLUDING CONTROL MEANS FOR CONTROLLING THE ARRIVAL OF SAID FIRING SIGNAL AT EACH OF SAID TRIGGERING MEANS AND, THEREBY, THE FIRING TIMES OF SAID PULSERS; AND MEANS FOR RECEIVING AND RECORDING THE SEISMIC WAVE PRODUCED BY SAID PULSERS.