Rosneft, as part of Sakhalin-1 Consortium, has completed drilling of the “world’s longest well” at the Chayvo field, off the coast of Sakhalin Island.
O-14 production well was drilled with Orlan drilling platform in direction of the field’s south-eastern point. According to Rosneft, the well has the world-record measured depth of 13,500 meters and a horizontal reach of 12,033 meters.
