GEARED TURBODRILL Russian patent published in 2005 - IPC

FIELD: oil and gas well drilling equipment, particularly with the use of fluid rotary type drives, namely geared turbodrills.

SUBSTANCE: turbodrill has body, lower coupling sub and upper coupling sub. Single stages of turbines are installed on shaft through keyed connection. Installed on the shaft are ball automatic balancing device, counterweight, axial support, radial support and stop upper and lower nuts. Shaft of turbine section is connected to high speed shaft of reducer gear through tooth-type coupling. Planetary gear is installed on high speed shaft so that planetary gear rotates over fixed wheel and transmits rotation to output shaft through gear wheel. Counterweights are arranged on high speed shaft. Turbodrill is provided with sealing units, membranous lubrication device and high-pressure catheter. Turbodrill also has valves for oil reservoir filling.

EFFECT: increased operational reliability during directional well drilling.

1 dwg