FIELD: oil extractive industry.
SUBSTANCE: actively controlled rotating directed drilling system for directed well drilling, having transfer sleeve of drilling tool, rotated by column of drilling pipes during well drilling, while shaft of drilling crown has upper portion in transfer sleeve of tool and lower end coming from that sleeve and supporting drilling crown. Shaft of drilling crown is supported for all-directed swaying between upper and lower ends by means of universal connection in transfer sleeve and is rotation driven by transfer sleeve. For reaching controlled direction of rotating drilling crown, orientation of drilling crown relatively to tool transfer sleeve is read and shaft of drilling crown is supported by geostationary means and is selectively directed in axial direction relatively to tool transfer sleeve during rotation of drilling pipes column by means of its rotating relatively to universal connection by displacing a mandrel, which rotates against rotation direction of case with same rotation frequency. Turbine driven by drilling mud together with generator generates electric energy, which is used for driving electric engine. Electric engine provides for rotation of deflecting mandrel relatively to transfer sleeve of tool and is remotely controlled by input signal from position detecting elements, like magnetic meters, hydroscopic sensors and acceleration meters, which provide for position signals in real time scale for controlling the engine. Also, when necessary, a brake is used for geostationary support of deflecting mandrel and shaft axis of drilling crown, where brake is remotely controlled by input signal from position detecting elements, which provide for position signals in real time scale for controlling the brake. As an alternative, turbine is connected to deflecting mandrel for rotating deflecting mandrel relatively to transfer sleeve of tool, and brake is used for remote control of turbine by input signal from position sensors, which provide for position signals in real time scale for controlling the brake.
EFFECT: higher efficiency.
2 cl, 28 dwg
