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Inclined block eccentric type three-dimensional hydroscillator

A hydraulic oscillator, eccentric technology, applied in the direction of drilling with vibration, can solve the problems of poor safety and single oscillation effect, and achieve the effect of solving poor safety, reducing friction, and safe and reliable oscillation effect.

Pending Publication Date: 2019-08-20
YANGTZE UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of oblique eccentric three-dimensional hydraulic oscillator which is safe, reliable and has good oscillation effect to solve the problems of poor safety and single oscillation effect existing in existing oscillators

Method used

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  • Inclined block eccentric type three-dimensional hydroscillator
  • Inclined block eccentric type three-dimensional hydroscillator
  • Inclined block eccentric type three-dimensional hydroscillator

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Embodiment Construction

[0027] The oblique eccentric three-dimensional hydraulic vibrator is composed of a shell, an axial vibrating element and a radial vibrating element. The inner hole of the upper shell 1 is a stepped variable-diameter hole, and one end port of the upper shell 1 is threaded with a The upper joint 2 is used to connect the water pump so as to input the drilling fluid to the oscillator to provide working power. The upper joint 2 is fixed with a fixed sliding block 3 .

[0028] An axial oscillating member is movably installed in the upper shell 1 below the upper joint 2, and the axial oscillating member is used to generate an axial oscillating effect to reduce the friction between the pipe string and the well wall. The axial oscillating part is composed of a sleeve 4, a moving sliding block 5, an upper shaft 6, a turbine assembly 7, a flow control boss 8 and a transmission rod 9. One end of the sleeve 4 is connected to the upper joint 2 through a spring, and the sleeve 4 The other en...

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Abstract

The invention relates to hydroscillators, in particular to an inclined block eccentric type three-dimensional hydroscillator. The inclined block eccentric type three-dimensional hydroscillator is composed of a shell, an axial oscillation part and a radial oscillation part. An upper joint is arranged in a port in one end of an upper shell in a threaded manner, the axial oscillation rod is movably arranged at the position, below the upper joint, in the upper shell, the axial oscillation part is connected with the upper joint through a spring, the other end of the upper shell is provided with a lower shell in a threaded manner, the radial oscillation part is movably mounted in the lower shell through a thrust bearing, the radial oscillation part and the axial oscillation part are in clamped connection, and a lower joint is arranged on the bottom end of the lower shell in a threaded manner. The inclined block eccentric type three-dimensional hydroscillator has the advantages of being safe,reliable and good in oscillation effect. The problem that an existing oscillator is single in safety and oscillation effect is solved, and the oil and gas development needs can be met.

Description

technical field [0001] The invention relates to a hydraulic vibrator, in particular to an oblique eccentric three-dimensional hydraulic vibrator. Background technique [0002] During the development of oilfields, the pipe string of the drill bit will contact the well wall during drilling to generate large frictional resistance, resulting in sinusoidal bending or helical buckling of the pipe string, and then pipe sticking accidents, which will affect the working efficiency of drilling. In order to reduce pipe sticking accidents during drilling, it is necessary to use an oscillator to reduce the friction between the pipe string and the well wall. The principle is: the oscillator provides axial and radial forces to the pipe string to form an oscillation effect, thereby The friction between the pipe string and the well wall is converted from static friction to dynamic friction to reduce friction. [0003] The traditional oscillator is limited by its own structure, the oscillati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/24
CPCE21B7/24
Inventor 冯定严淳鳀赵钰王哲
Owner YANGTZE UNIVERSITY
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