PGS Americas, Inc.
|PGS Americas, Inc. Patent applications|
|Patent application number||Title||Published|
|20120250457||SYSTEMS AND METHODS FOR WIRELESS COMMUNICATION IN A GEOPHYSICAL SURVEY STREAMER - A disclosed survey method includes towing geophysical survey streamers in a body of water and using sensors within the streamer to collect measurements that are then conveyed along the streamer to a recording station using at least one wireless transmission link. In some implementations at least one sensor is coupled to a wireless transceiver in a streamer to transmit geophysical survey measurement data along the streamer to a wireless base station. The base station receives the wirelessly transmitted seismic data and communicates it to a central recording station. Each segment of the streamer may contain a base station to collect wireless data from the sensors in that segment, and each base station may be coupled to the central recording station by wiring (e.g., copper or fiber optic). Other implementations employ ranges of sensors wired to local transceivers that form a peer-to-peer wireless network for communicating data to the central recording station.||10-04-2012|
|20120250456||SYSTEMS AND METHODS FOR ENERGY HARVESTING IN A GEOPHYSICAL SURVEY STREAMER - A disclosed geophysical survey system includes one or more streamers having sensors powered by at least one energy harvesting device that converts vibratory motion of the streamers into electrical power. The vibratory motion may originate from a number of sources including, e.g., vortex shedding, drag fluctuation, breathing waves, and various flow noise sources including turbulent boundary layers. To increase conversion efficiency, the device may be designed with an adjustable resonance frequency. The design of the streamer electronics may incorporate the energy harvesting power source in a variety of ways, so as to reduce the amount of wiring mass that would otherwise be required along the length of the streamer.||10-04-2012|