Well intervention device and offshore floating installation

摘要

Mobile Offshore Drilling Units (MODUs) are more susceptible to meteorological conditions such as winds, currents and, most importantly, waves. These meteorological conditions generate a movement of the installation that will inevitably be transferred to some extent to the drilling pipe. A mobile offshore drilling unit can include a rooster box configured to move the rooster box along the height of a derrick to which it is attached. An injector configured to attach to an intervention frame of the rooster box, wherein the injector is configured to be releasably coupled to a conduit The injector configured to be positioned on-axis with the conduit in a first configuration and off-axis with the conduit in a second configuration.

主权项

1. A mobile offshore drilling unit comprising:
a derrick fixedly attached to a vessel; a rooster box configured to move along a height of the derrick including frame and a skid, the frame configured to move along the skid horizontal to the height of the derrick between an on-axis configuration and an off-axis configuration; an injector configured to attach to the frame, wherein the injector is configured to be releasably coupled to a conduit in the on-axis configuration and decoupled from the conduit in the off-axis configuration; and the rooster box including one or more sensors for ensuring dynamic loads exerted on the conduit do not exceed a threshold load and in response to the threshold load being exceeded vertically moving the rooster box.