MOBILE BLOCK-MODULE DRILLING RIG OF HIGH ERECTING CAPACITY AND LIFTING POWER OF 1600, 2000 AND 2250 kN Russian patent published in 2011 - IPC E21B7/02 

FIELD: construction.

SUBSTANCE: mobile drilling rig comprises a tower with folding sections, a lifted sectional folding base, modules of the main blocks on a transport base, a power unit, variable-frequency electric drives of the main mechanisms. Easily transportable quick-assembly sectional tower is arranged with an open front face, with inbuilt upper drive to work with drilling pipe stands of 24-25 m nominal length. The rig comprises a universal lifted base, which is raised into a working condition with the help of hydraulic cylinders to the height of up to 10 m, with the mechanism used to move a tower-hoist unit of an industrial drilling rig in the area of a well cluster with the help of the electric drive of load trolleys, moving along a rail track, a variable-frequency AC electric drive with a digital control system for the main equipment of a mobile drilling rig and a soft start device at electric drives of auxiliary mechanisms.

EFFECT: high power efficiency and erecting capacity, higher safety of drilling works and major overhaul of wells.

20 dwg