AUTOMATED NAVIGATION DRILLING COMPLEX FOR LAYING SERVICE LINES Russian patent published in 2003 - IPC

FIELD: drilling technology: applicable in laying service lines by hole drilling. SUBSTANCE: automated navigation drilling complex has unit for angled drilling with holder for drill pipes, working hydraulic cylinder for moving of drill pipe string, drilling mud supply system, controller of initial drilling angle, tongs with tongs drive for making and breaking of drill pipes, rotary head with rotary head drive for rotation of drill pipe string and successively installed and connected with drill pipe string: drilling bit, turbodrill, deflecting tool with its drive and downhole instrument for monitoring of drilling parameters. Introduced into complex composition are vibrohammer, hydraulic plant with its monitoring and control unit, receiving device, ground surface transducers, personal computer, monitor, electronic system of monitoring and control, converter complex including analog-to-digital converters of signals from ground surface transducers. Downhole instrument of drilling parameters monitoring has device for its changing over to wait condition during vibrohammer operation. Hydraulic plant is communicated by means of pressure lines with working hydraulic cylinder and cylinder of initial drilling angle controller. Ground surface transducers are connected via converter complex with input of personal computer whose output is connected with input of monitoring and control electronic system whose outputs are connected with inputs of hydraulic plant monitoring and control unit, pump drive and rotary head drive. Complex may have chassis on wheels or tracks, extensible supports and anchor with its drive. Complex may have operator's cab with driller's control panel, and device for conjugation of control panel with personal computer. Connected to input of converter complex may be drilling mud level gage installed in vessel for drilling mud, flowmeter, drilling mud pressure pickup installed in pressure pipeline supplying drilling mud, device for measurement of drill pipe length and transducer of chassis inclination angle installed on frame. Deflecting tool may be made with controlled angle and connected with its drive. Working cylinder may be made telescopic. EFFECT: increased complex reliability. 13 cl, 3 dwg