Device and method for improving rate of mechanical penetration of directional deflecting section

Abstract

The invention relates to a directional deflecting acceleration device and a using method thereof. The directional deflecting acceleration device comprises a torque regulating short section, a clamping arm short section and a torque eliminating short section. An upper transmission piece and a lower transmission piece of the torque regulating short section achieve synchronous connection and disconnection through a torque locking piece. The directional deflecting acceleration device is installed above a drill collar in a dynamic drill assembly. The pitching pressure-out is adopted to start the torque regulating short joint, regulate the torque locking piece and cut the torque transmitting from a rotary table to a drill bit. Meanwhile, a bi-directional thrust ball bearing combination continues to keep the drill pressure being transmitted to the drill bit. Pumping pressure is increased, the clamping arm short joint extends outwards out of a clamping arm to clamp the well wall, the torque eliminating short joint is matched to enable the clamping arm short joint and the drill assembly below the clamping arm short joint to relatively fix the well wall, and well inclination azimuth is kept unchangeable. The device is compact in structure, convenient to operate, and capable of thoroughly solving the problem that the rate of mechanical penetration of a directional deflecting section is low.

Description

technical field [0001] The invention relates to a directional deflection speed-increasing device capable of increasing the ROP of a directional deflection build-up section and an application method thereof. The device can effectively ensure the transmission of drilling pressure to the drill bit, cut off the transmission of the rotary table torque to the drill bit, and realize efficient and rapid drilling in the directional deflection section. Background technique [0002] When routinely implementing deflection building operations in the directional section, a special curved dynamic drilling tool is lowered, and the sliding drilling method is used to complete the adjustment of the well deflection azimuth and deflection building. In order to ensure the success of deflection, when using curved power drilling tools, the power of the turntable will be stopped, and the power drilling tools will be used to drive the drill bit to rotate. At this time, due to the stoppage of the tur...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low drilling speed caused by the inability to effectively transmit the drilling pressure to the drill bit during the operation of the conventional directional build-up section, improve the overall drilling efficiency of the directional build-up section and further reduce the operating cost

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