Offshore Slickline
Since the introduction of subsea wells in the 1970s, service companies have been developing methods to perform light interventions without costly offshore drilling units. Using specially designed vessels, service companies perform slickline, wireline and coiled tubing operations through subsea wellheads using riserless or riser-based methods.
Riserless light well intervention rig-up. Using a monohull vessel with dynamic positioning capabilities, service providers perform riserless wireline and slickline interventions. A remotely operated vehicle (ROV) may be used to view the operation and to monitor and guide the landing of the well intervention package onto the subsea wellhead. The well intervention package includes the pressure-control hardware and the subsea BOP. A control umbilical allows technicians to manipulate the BOP and subsea tree valves from the surface.
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