Power savings mode for ocean bottom seismic data acquisition systems

摘要

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.

主权项

1. A method for marine seismic data collection, comprising:
operating an array of autonomous sensor nodes in an idle mode, wherein the idle mode is configured to conserve power consumption by the sensor nodes; determining whether seismic data is expected at one or more of the sensor nodes in the array based on proximity to a seismic source boat configured to generate a signal to the sensor nodes, wherein the proximity is determined within a predefined distance of the seismic source boat based on the signal received from the seismic source boat; in response to determining that seismic data is expected, selectively operating the one or more sensor nodes in an active mode; and collecting the seismic data with the one or more sensor nodes while selectively operating in the active mode, wherein sensor nodes within the predefined distance of the seismic source boat are operating in the active mode and other sensor nodes in the array are operating in the idle mode.