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

A technology of oscillating device and sealing cavity, which is applied to vibration generating device, driving device for drilling in wellbore, drilling with vibration, etc., can solve problems such as interruption of drilling progress, failure of oscillator, failure of vulnerable parts of oscillator, etc. Achieve the effect of increasing service life and increasing drilling speed

Active Publication Date: 2021-01-05
SOUTHWEST PETROLEUM UNIV
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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

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

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing and example the present invention will be further described:

[0032] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the present invention has a high-efficiency rock-breaking vibration device with disc spring-seal cavity buffering function, mainly composed of an upper joint 1, a housing 11, a turbine drive assembly 38, a sinusoidal shaft punching assembly 39, and a helical torsion punching assembly 40 , disc spring-seal chamber buffer assembly 41 and lower joint 37; the turbine drive assembly 38 is composed of central shaft 4, string bearing 12, turbine stator 9, turbine rotor 10, TC bearing 7, bearing support 8, static Sealing ring group 1 6, special round screw 3, blocking cover 2, round nut 5 and axial positioning sleeve 2 13; the sinusoidal shaft punch assembly 39 consists of a lower axial impact block 18 and an upper axial impact block 16 , static ...

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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]...

Claims

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Application Information

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IPC IPC(8): E21B7/24E21B28/00E21B4/16
CPCE21B7/24E21B28/00E21B4/16
Inventor 李琴蒲伟黄志强马亚超王美玲张文琳王若豪殷中泉张鹏喻洪梅叶哲伟陈子轩邱志礼陈智杰
Owner SOUTHWEST PETROLEUM UNIV
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