The total proven reserves of the Rabi Kounga oil field are around 440 million barrels (59×106tonnes), and production is centered on 150,000 barrels per day (24,000 m3/d).
By analogy with other Shell remote locations, this will contain some significant degree of trauma-treatment facility, at least sufficient to stabilise a patient while air evacuation is arranged.
There are several oil separating facilities in the area (the first stage of refining, degassing the oil prior to long-distance pipe transport), and an oil-export pipeline.
(Destination is also probably Gamba, but this is not clear from publicly available sources.
There are security concerns about publicising the routes of pipelines widely.)