Patent ID: 9395460
Filing Date: 2016-07-19
CPC Classification: G01V

Claim Text:
1. A process for acquiring seismic data and providing information about geologic structures in the earth, wherein the process comprises: a) providing a plurality of seismic receivers to receive seismic energy; b) providing at least one pulse-type seismic source to emit pulses of seismic energy into the earth; c) firing a distinctive non-orthogonal series of pulses of seismic energy into the earth to create a seismic energy wavefield response from geologic structures in the earth where the distinctive series of pulses of seismic energy are delivered in a loop from said at least one pulse-type seismic source in a planned order where the loop is of sufficient length to provide listening time to receive the wave field response from the geologic structures in the earth from a portion of the loop defined as a composite pulse before the distinctive series of pulses of the loop end and are restarted and wherein the series of pulses within the loop are sufficiently distinctive so as not to confuse parts of the loop with other parts of the loop and sufficiently distinctive so as to distinguish the wavefield caused by the loop from seismic energy in the environment that arises from other sources; d) receiving seismic energy with the plurality of seismic receivers including the seismic energy wavefield response from the geologic structures in the earth; e) recording the seismic energy wavefield response received by the seismic receivers to form data traces; and f) processing the data traces of recorded seismic energy to separately identify within the data traces the composite pulses of the pulse-type seismic source when the composite pulses were fired.