Efficient rock breaking oscillation device with disc spring-sealing cavity buffering function

Abstract

The invention relates to an efficient rock breaking oscillation device with a disc spring-sealing cavity buffering function. The device comprises an upper joint, a shell, a turbine driving assembly, asine shaft impact assembly, a spiral torsional impact assembly, a disc spring-sealing cavity buffer assembly and a lower joint, and is characterized in that the turbine driving assembly is positionedat the upper part of a tool and provides power required by the operation of the tool; and the sine shaft impact assembly adopts a sine surface structure to generate axial reciprocating impact, the spiral torsional impact assembly adopts a spiral slide way, a steel ball and a linear short slide way structure to generate torsional impact, and the disc spring-sealing cavity buffer assembly positioned at the lower part of the tool adopts a disc spring and forms a closed sealing cavity structure, so that excessively strong torsional impact can be buffered. The efficient rock breaking oscillation device can play a role in buffering excessively-strong torsion impact so as to reduce part loading, prolong the service life of the torsion impact tool, improve the rock breaking efficiency and the drilling speed of a drill bit, reduce tripping and reduce the drilling cost.

Description

technical field [0001] The invention discloses a high-efficiency rock-breaking oscillation device with a disc spring-seal chamber buffering function, belonging to the field of drilling engineering in the petroleum and natural gas industry. Background technique [0002] With the development of the petroleum industry, the proportion of exploration and development of deep wells and ultra-deep wells is gradually increasing. According to the results of the fourth national oil and gas resource evaluation released by PetroChina: China's onshore conventional natural gas resources are 41.00×10 12 m 3 ; Among them, the deep layer accounts for about 30.1%, and the ultra-deep layer accounts for about 40.2%. Onshore tight gas, shale gas, coalbed methane and other unconventional natural gas resources are 101.86×10 12 m 3 , deep-ultra-deep tight gas and shale gas resources account for about 29.8%. This has increased the difficulty of exploiting oil and natural gas resources. [0003]...

AI Technical Summary

Problems solved by technology

[0005] However, the traditional oscillator still has some deficiencies in practical engineering applications. It usually uses the hard impact of the torsional impact block and the metal surface of the impact block to generate impact. The excessively strong impact may easily cause premature failure of the vulnerable parts of the oscillator. , causing the entire oscillator to fail, resulting in interruption of the drilling schedule and inability to continue at high speed

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