Abstract: Embodiments of the invention provide methods, systems, and apparatus for conserving power while conducting an ocean bottom seismic survey. Sensor nodes placed on an ocean floor may be configured to operate in at least an idle mode and an active mode. Each node may adjust its mode of operation from idle mode to active mode.

Abstract: Embodiments of the invention provide methods, systems, and apparatus for collecting seismic data in marine environments. An ocean bottom cable comprising a plurality of sensor nodes for collecting seismic data may be coupled to a submerged hub. The submerged hub may provide seismic data storage, power, clock, and other support for operating the sensor nodes. By providing a submerged hub, the ocean bottom cable may continue collecting seismic data in harsh environments such as the arctic, where the sea surface may be frozen.

Abstract: Embodiments of the invention provide methods, systems, and apparatus for conserving power while conducting an ocean bottom seismic survey. Sensor nodes placed on an ocean floor may be configured to operate in at least an idle mode and an active mode. Each node may adjust its mode of operation from idle mode to active mode.

Abstract: Embodiments of the invention provide methods, systems, and apparatus for conserving power while conducting an ocean bottom seismic survey. Sensor nodes placed on an ocean floor may be configured to operate in at least an idle mode and an active mode. When a seismic source boat approached the sensor node, the node may adjust its mode of operation from an idle mode to an active mode. After the seismic source boat is no longer near the sensor node, the idle mode may be entered again to conserve power.

Abstract: The present invention generally relates to seismic data acquisition and more specifically to ocean bottom seismic data acquisition systems. An ocean bottom seismic cable may include a first section comprising a plurality of seismic sensors, wherein the first section is positioned on a floor of a body of water in an area where there are no or substantially no obstructions. The seismic cable may also include a second section coupled to the first section, wherein the second section is positioned above or overlays an obstruction, and wherein the second section does not include seismic sensors.

Abstract: Embodiments of the invention provide methods, systems, and apparatus for conserving power while conducting an ocean bottom seismic survey. Sensor nodes placed on an ocean floor may be configured to operate in at least an idle mode and an active mode. When a seismic source boat approached the sensor node, the node may adjust its mode of operation from an idle mode to an active mode. After the seismic source boat is no longer near the sensor node, the idle mode may be entered again to conserve power.

Abstract: Embodiments of the invention provide methods, systems, and apparatus for conserving power while conducting an ocean bottom seismic survey. Sensor nodes placed on an ocean floor may be configured to operate in at least an idle mode and an active mode. Each node may adjust its mode of operation from idle mode to active mode.