Array grouping of seismic sensors in a marine streamer for optimum noise attenuation
AssigneePGS Geophysical AS
InventorsØyvind Hillesund, Hocine Tabti
Life of this patent
Estimating the term…
Abstract
A marine seismic streamer includes at least one particle motion sensor array. The array includes a plurality of particle motion sensors disposed at spaced apart locations along the streamer. Outputs of the particle motion sensors are functionally coupled to form an array. A number of the particle motion sensors and a spacing between adjacent particle motion sensors are selected to attenuate noise in a selected mode of propagation and within a selected wavenumber range. The streamer includes means for weighting a signal output of each particle motion sensor in the at least one array. A signal weight applied to each sensor by the means for weighting is selected to optimize attenuation of the noise.
Claims8
A marine seismic streamer, comprising:
- a plurality of particle motion sensor arrays disposed along the streamer at longitudinally spaced apart positions, each particle motion sensor array including a plurality of particle motion sensors disposed at spaced apart locations along the streamer, outputs of the particle motion sensors coupled to form an array, a spacing between each adjacent particle motion sensor and a signal weight of each particle motion sensor in a particle motion sensor array being individually selected to attenuate noise in a selected mode of propagation and within a selected wavenumber range wherein at least one particle motion sensor has a weight or spacing different from another particle motion sensor in the array.
Dependencies are inferred from the claim text.