Subsidência (subsidence)

Petrobras – UFRJ

Main goals:

  • Generate a subsidence in Sarapui II test site (Rio de Janeiro, RJ);
  • Measure it;
  • The equipment used for measurement must be able to be launched in 2000 m of water depth.

Measurement Equipments (provided by NGI – The Norwegian Geotechnical Institute):

  • FBS – FiberOpticalSensors (3-D);
  • Magnetic tilt recorders;
  • Fault recorder.

Optic fiber system


Magnetic tilt recorder


Outlines of NGI’s seabed fault recorder