FIELD: oil and gas industry.
SUBSTANCE: drilling head housing includes side wall restricting the central hole. Bearing assembly has the possibility of being installed in drilling head housing, and it can be disconnected so that it can be possible to connect seal packing assembly of blowout preventer to lower end part of that assembly. Bearing assembly includes bearings and direct-flow bearing lubrication circuit provided with possibility of lubricant circulation for bearings through bearings. The first lubrication line has bearing lubricant passage connected to the first end part of direct-flow bearing lubrication circuit. The second lubrication line has bearing lubricant passage connected to the second end part of direct-flow bearing lubrication circuit.
EFFECT: effective lubricant distribution and cooling.
7 cl, 18 dwg
