초록 ▼

A system for vibrating the earth in a location where seismic mapping is to take place, including forming a relatively shallow hole in the earth such as a hole 10 feet deep, placing a solid propellant in the hole, sealing a portion of the hole above the solid propellant with a device that can rapidly

A system for vibrating the earth in a location where seismic mapping is to take place, including forming a relatively shallow hole in the earth such as a hole 10 feet deep, placing a solid propellant in the hole, sealing a portion of the hole above the solid propellant with a device that can rapidly open and close to allow a repeatedly interrupted escape of gas, and igniting the propellant so that high pressure gas is created which escapes in pulses to vibrate the earth.

대표청구항 ▼

A method for creating vibrations in the earth, comprising: forming a hole in the ground; generating large quantities of gas in said hole and allowing the gas to press directly against the walls of the hole; and rapidly closing and opening the upper end of said hole, to thereby decrease the force of

A method for creating vibrations in the earth, comprising: forming a hole in the ground; generating large quantities of gas in said hole and allowing the gas to press directly against the walls of the hole; and rapidly closing and opening the upper end of said hole, to thereby decrease the force of the gas on the hole walls in pulses.