UPPER POWER DRIVE OF DRILLING RIG Russian patent published in 2009 - IPC E21B3/00 

FIELD: oil and gas production.

SUBSTANCE: invention refers to drilling rigs of oil wells and can be implemented in suspended drilling rigs with upper drive of drilling tube rotation used for drilling operations at oil and gas wells including horizontal and deviating drilling. The upper power drive of the drilling rig consists of a power swivel with a hydro-motor in pass-through modification, a slider, and a guiding beam installed inside a support and made in form of three folding and movable relative to each other sections - a lower, middle and upper one arranged pivotally and rotating to 180°. The lower section is connected with the power swivel by means of the slider and with a lower section of the support by means of a lower power belt and a rest; while the upper section of the said beam is secured on a movable telescopic upper section of the support.

EFFECT: increased reliability, convenience in operation, and reduced time of assembly-disassembly of structure.

9 dwg