Patent ID: 9213114
Filing Date: 2015-12-15
Classification: G01V,H04B

Abstract:
1. A system for conducting a seismic survey, comprising: a plurality of seismic devices distributed across an earth surface at intervals; a plurality of conductor pairs in electrical communication with the plurality of seismic devices, each of the conductor pairs being configured to convey power and telemetry signals; a power supply configured to supply the power signals to each of the plurality of seismic devices over at least two of the plurality of conductor pairs; one or more center tapped transformers configured to superimpose the telemetry signal on to the power signal, wherein the power supply is in electrical communication with at least one center tap of the center tapped transformers; and a data communication device configured to communicate with each of the plurality of devices over the at least two of the plurality of conductor pairs, wherein each conductor pair is in electrical communication with at least one of the center tapped transformers.