lwd rotary steerable system
  • LWD Rotary Steerable System

    LWD Rotary Steerable System

    The total length of the rotary steerable system (including power supply, pulser, MWD, logging system and rotary steerable system) is no more than 16 meters. Due to drill string vibration, impact, annular pressure, rotary steerable system could transmit real-time data. With azimuthal gamma-ray imaging function, rotary steerable system can be widely used in reservoir geosteering. It also has the function of rotary steering and near bit well deviation measurement, and could control well trajectory accurately when drilling tool is continuously rotating. In rotary steerable system, automatic computing equipment on the ground sends commands during drilling to control downhole instrument, without occupying additional operation time. Rotary steerable system has several control modes: steering mode, stabilized mode and so on. Downhole closed loop controls system automatically. Tool maintenance is easy. Steerable sub can be disassembled on site, so as to ensure the smooth field operations. Completing the equipment of drilling tools on site needs about 2 to 3 hours, which is fast and convenient.

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