Patent ID: 9535178
Date: 2017-01-03
CPC Classifications: G01V

Claim:
1. A method for generating a target output spectrum for use in seismic exploration to be achieved by a hydraulic seismic vibrator device, the method comprising: receiving constraint information related to the hydraulic seismic vibrator device; using a mathematical relationship for achieving the target output spectrum, wherein the mathematical relationship relates the (i) the constraint information of the hydraulic seismic vibrator device, (ii) the target output spectrum, and (iii) a frequency sweep rate; determining in a processor-based device, based on the mathematical relationship, a frequency sweep for achieving the target output spectrum by the hydraulic seismic vibrator device in compliance with the constraint information of the hydraulic seismic vibrator device; and employing said determined frequency sweep by said hydraulic seismic vibrator device for generating said target output spectrum, wherein, in the mathematical relationship, the frequency sweep rate is directly proportional to a force constraint at a predetermined power, the force constraint being related to the constraint information, and inversely proportional to the target output spectrum at the predetermined power.