Patent ID: 9213115
Filing Date: 2015-12-15
Classification: G01V

Abstract:
1. A system for conducting a seismic survey, comprising: at least one seismic sensor configured to supply an analog signal; a housing configured to receive: a recording computer configured to receive a digital output from the analog-to-digital converter; a first clock in electric communication with the analog-to-digital converter and configured to provide a first clock signal to the analog-to-digital converter; and a noise reduction circuit in electric communication with the first clock and receiving a second clock signal, the noise reduction circuit configured to synchronize the first clock with the second clock signal such that noise from the power supply is reduced to prevent interference; wherein the power supply is configured to supply power to at least one seismic device other than the analog-to-digital converter in dependence upon the second clock signal supplied to the power supply from a second clock, wherein the power supply is proximate to the analog-to-digital converter such as to produce interference altering the output of the analog-to-digital converter in the absence of noise reduction countermeasures; and wherein the second clock resides inside the housing, the distance between the analog-to-digital converter and the power supply is less than 12 inches, and the analog-to-digital converter and the power supply each reside inside the housing; and wherein the recording computer is configured to receive a digital output from the analog-to-digital converter and image subsurface geological formations in dependence upon the digital output.