Efficient composite type drilling anti-sticking drilling twisting type tapered mill

Abstract

The invention discloses an efficient composite type drilling anti-sticking drilling twisting type tapered mill. The efficient composite type drilling anti-sticking drilling twisting type tapered millincludes a rotating outer barrel, a stable platform, a guiding offset mechanism, a bit pressure transmission mechanism, a torque transmission mechanism, an upper supporting plate, a lower supporting plate, a drilling spindle, a drill bit, a sealed corrugated pipe, a drill spindle connecting bearing and a conductive slip ring, wherein the rotating outer barrel is connected with a drill pipe or a drill pipe system, the drill pipe is provided with a signal control device and a supply unit, the signal control device and the supply unit are wirelessly connected with a ground monitoring system, thesupply unit is connected with the signal control device, and the signal control device is connected with the conductive slide ring through a power line and / or a signal line; and the guiding offset mechanism is arranged in the stable platform, and the stable platform is arranged in the rotating outer barrel. According to the drilling anti-sticking drilling twisting type tapered mill, compared witha traditional drilling twisting type tapered mill, torque strength is large, performance is stable, drilling is precision, the efficiency is high, the service life is long, the intelligent degree is high, and the drilling efficiency can be effectively improved.

Description

technical field [0001] The invention relates to the field of oil and gas drilling, in particular to a high-efficiency compound anti-jamming drilling strand milling cone. Background technique [0002] Steering drilling is composed of high-efficiency drill bit, steerable power drilling tool and MWD, and supplemented by computer software to form a steerable drilling system. It is used in oil drilling engineering. It can change the two working conditions of orientation and turntable in time, and complete the orientation continuously. It is a drilling method that can quickly drill a high-quality well trajectory without pulling out the drill to change the drilling tool assembly through deflection build-up, deflection build-up, deflection stabilization, deflection declination and azimuth twisting operations. [0003] As most oil and gas fields at home and abroad have successively entered the middle and late stages of development, the difficulty of oil and gas reservoir development ...

AI Technical Summary

Problems solved by technology

[0006] Chinese patent announcement number CN 101586440A, published on November 25, 2009, the name of the invention is a pointing rotary steerable drilling tool (this invention application is also a utility model patent authorization, authorized announcement number: CN 201450731U, authorized announcement date May 12, 2010), the application discloses a pointing rotary steerable drilling tool system that does not depend on the surface mechanical properties of the formation, has a simple structure, and can accurately and effectively control the wellbore trajectory. The pointing type rotary steerable drilling tool system has the disadvantages that ① the outer cylinder does not rotate when the drilling tool is working, and its acting torque is small; ② the guiding of the drilling tool is realized by bending the mandrel, and the guiding mandrel needs to Under high-strength alternating stress, prone to fatigue damage

Although the system can solve the deviation of the drilling shaft well in essence, the stability and support of the drilling shaft cannot be well guaranteed, and it is easy to get stuck, and the drilling speed cannot be well grasped during use.

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