초록 ▼

Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficient

Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.

대표청구항 ▼

What is claimed is: 1. A seismic streamer array, comprising:a submersible cable with buoyancy to suspend the submersible cable in water;one or more series of sensor groups, each group having a plurality of optical sensors sharing a common wavelength, the common wavelength being different for each gr

What is claimed is: 1. A seismic streamer array, comprising:a submersible cable with buoyancy to suspend the submersible cable in water;one or more series of sensor groups, each group having a plurality of optical sensors sharing a common wavelength, the common wavelength being different for each group in a same series;instrumentation coupled to the series of sensor groups and configured to interrogate sensors in each group using time division multiplexing (TDM) and to interrogate sensors in different sensor groups in each series using wavelength division multiplexing (WDM);a module connection node for each series of sensor groups; anda lead cable with multiple fibers coupling the instrumentation to the one or more series of sensor groups, wherein each module connection node couples a different one or more of the multiple fibers of the lead cable to a sensor fiber used to interrogate a series of sensor groups.