Self-excited resonance drilling device and drilling method thereof

A self-exciting and drilling technology, applied in the fields of oil drilling rock breaking technology, geotechnical engineering, mining engineering, and petroleum engineering, it can solve the problems of unsatisfactory drilling effect, low ROP, frequent drilling accidents, etc. Rock effect, increase drilling cost, increase service life effect

Inactive Publication Date: 2011-12-21
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One purpose of the present invention is to provide a self-excited resonance drilling device, which is used to solve the problems of the prior art that the drilling effect is not ideal, the mechanical penetration rate is low, drilling accidents occur frequently, and the cost is high; another purpose of the present invention is to provide this Drilling method of self-excited resonance drilling device

Method used

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  • Self-excited resonance drilling device and drilling method thereof
  • Self-excited resonance drilling device and drilling method thereof
  • Self-excited resonance drilling device and drilling method thereof

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Embodiment Construction

[0033] Below in conjunction with accompanying drawing, the present invention will be further described:

[0034] Such as figure 1 As shown, this self-excited resonance drilling device is composed of an upper drill pipe 1, a drill collar 2, a shock absorber 3, a self-excited resonator 5, and a drill bit 7 from top to bottom. The drill collar 2 is connected to the upper part through its thread. The drill pipe 1 is connected, the shock absorber 3 is connected with the drill collar 2 through threads; the self-excited resonator 5 is connected with the upper short connector 4 through threads, and the upper short connector 4 is connected with the shock absorber 3 through threads; the drill bit 7 is connected with the lower connector 4 through threads. The short-circuit 6 is connected, and the other end of the lower short-circuit 6 is connected with the self-excited resonator 5 . The self-excited resonator 5 is a shock-absorbing ultrasonic driver.

[0035] In the present invention, ...

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Abstract

The invention relates to a self-excitation sympathetic vibration well drilling device and method, wherein the self-excitation sympathetic vibration well drilling device comprises an upper drill rod, a drill collar, a shock absorber, an upper short connection part, a self-excitation resonator, a lower short connection part and a drill head from top to bottom. The drill collar is connected with theupper drill rod through threads. The shock absorber is connected with the drill collar through threads. The upper short connection part is connected with the shock absorber through threads. The self-excitation resonator is connected with the upper short connection part through threads. The other end of the self-excitation resonator is connected to the lower short connection part. The drill head is connected to the lower short connection part via threads. The invention is capable of making full use of lengthways vibration of the drill post, changing the harm into benefit, reducing the loss efficacy of the drill post effectively and enhancing the service life of the drill post. On the other hand, the invention is capable of converting the mechanical energy in lengthways impact and vibrationgenerated by the drill head and the drill collar to medium kinetic energy, achieving the rock crack sympathetic vibration condition and enhancing the well drilling speed.

Description

1. Technical field: [0001] The present invention relates to a kind of drilling mode which utilizes the resonance phenomenon to quickly break deep formation rocks and increase the ROP, which belongs to the field of oil drilling and rock breaking technology, and is mainly used in the fields of petroleum engineering, mining engineering, geotechnical engineering, etc., specifically The invention relates to a self-excited resonance drilling device and a drilling method thereof. 2. Background technology: [0002] The difficulties of high-efficiency rock-breaking drilling technology in deep formations mainly include: first, the existing high-efficiency rock-breaking technology has technical bottlenecks in deep formations; second, the proportion of complex formations and difficult-to-drill formations is increasing year by year. come lower. In view of the actual situation of my country's current drilling engineering and the difficulties of drilling in deep formations, it is urgent t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/24E21B28/00
Inventor 李玮闫铁毕雪亮李思琪
Owner NORTHEAST GASOLINEEUM UNIV
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