Inertial confinement and induction drilling device with PDC drill bit

Abstract

Disclosed is an inertial confinement and induction drilling device with a PDC drill bit. A planetary frame is installed on the outer circumferential surface of an input shaft of the sun wheel in a sleeving mode, and a small sliding bushing is installed on the circumferential surface of the input shaft of the sun wheel in a sleeving mode; four planetary gear shafts are all arranged on the surface of the planetary frame, 8 planetary gears are divided into 2 groups and axially arranged on the planetary gear shafts in a sleeving mode, and one group of planetary gears are close to the drill-collar connecting end of the input shaft of the sun wheel; the end surfaces of the first group of planetary gears are fitted with the inner end surfaces of steps at one end of the input shaft of the sun wheel through end-surface pressure bearings. An output shaft of the planetary frame is installed on the outer circumferential surface of the input shaft of the sun wheel, so that the inner end surface of the output shaft of the planetary frame is fitted with the outer end surface of the planetary frame. The inertial confinement and induction drilling device with the PDC drill bit is completed on the basis of a planetary-wheel reducer structure, and has the advantages that the impact is stable and continuous, the durability is guaranteed, the quality of drilling holes is ensured, and the energy consumption is low.

Description

technical field [0001] The invention relates to the field of petroleum drilling, and is suitable for drilling equipment for petroleum PDC drill bits. Background technique [0002] In the process of oil drilling, anisotropic or hard inclusions are often encountered, which often causes stick-slip, depressurization, drill jumping, chipping and tool breakage of the drilling system, which seriously affects the drilling progress and quality control. . With the development of modern industrial automation technology, the contradiction between the technical requirements of drilling progress and quality control and cost control has become increasingly prominent, and there is an urgent need for a reliable, stable and efficient drilling technology equipment that can be used in harsh working environments. [0003] The invention with application number CN201610099208.2 discloses a shock-absorbing high-frequency torsional impactor. The impactor is mainly used in the technical field of oi...

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned drilling tool patented technologies all have a good application effect of increasing the drilling speed, but they need the power support of mud pumps or gas pumps. On the one hand, they consume a lot of energy; on the other hand, they are not suitable for deep well drilling or drilling without fluid circulation.

The above literature data search did not find any literature reports on inertial confinement drilling devices that do not rely on fluid power

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