Shearwater flags benefits of smaller OBS node design
June 8, 2022
Shearwater GeoServices has released Pearl, a new development in ocean-bottom nodal technology.
Courtesy Shearwater GeoServices
Pearl is a marine seismic advancement in ocean-bottom nodal technology.
Offshore staff
BERGEN, Norway — Shearwater GeoServices has released Pearl, a new development in ocean-bottom nodal technology.
The fully wireless, multicomponent node design combines hydrophones with tri-axial microelectromechanical system (MEMS) accelerometers. The MEMS sensors measure the full bandwidth of the seismic wavefield down to the lowest frequencies, according to Shearwater.
Pearl’s small size and low weight is said to facilitate wider and denser spreads, reducing operational time by one-third compared with current deployments.
It can be used in deep and shallow waters for activities ranging from exploration and production seismic to capturing geophysical data for carbon storage.
Its battery life allows for more than 150 days of continuous recording, removing the need to retrieve nodes to recharge or replace batteries during surveys, Shearwater said.
