Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Resonance enhanced drilling method and apparatus

A drilling equipment and equipment technology, applied in drilling equipment, drilling with vibration, automatic control system for drilling, etc.

Active Publication Date: 2009-07-22
THE UNIV COURT OF THE UNIV OF ABERDEEN REGENT WALK
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the improvements exhibited by ultrasonic drilling are not always consistent and not always directly applicable to borehole drilling

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Resonance enhanced drilling method and apparatus
  • Resonance enhanced drilling method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] [0043] In a development of the present invention, it has been realized that particularly high drilling rates can be achieved when drilling through materials such as rock formations if the loading of the drill bit is arranged to induce resonance of the system formed by the drill bit and the formation being drilled .

[0065] [0044] However, while such resonances are obtainable on test rigs using standard samples, a different situation arises when drilling through natural rock formations. This is because drilling conditions vary from layer to layer within the formation. Consequently, the resonance conditions vary throughout the formation and therefore cannot be maintained throughout drilling.

[0066] [0045] The present invention overcomes this problem by identifying nonlinear resonance phenomena when drilling through material, and attempts to preserve the resonance in the system combined by the drill bit and the material being drilled.

[0067] [0046] To this end, Appl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to drilling apparatus comprising a drill-bit (1) capable of rotary and high frequency oscillatory loading; and control means for controlling applied rotational and / or oscillatory loading of the drill-bit, the control means having adjustment means for varying the applied rotational and / or oscillatory loading, said adjustment means being responsive to conditions of the material through which the drill is passing. The control means is in use provided on the apparatus in a downhole location and includes sensors for taking downhole measurements of material characteristics, whereby the apparatus is operable downhole under closed loop real-time control. The apparatus can determine appropriate loading parameters for the drill-bit in order to achieve and maintain resonance between the drill-bit and the drilled material in contact therewith.

Description

technical field [0001] [0001] The present invention relates to drilling apparatus, and in particular to drilling apparatus for drilling within a material such as a rock formation. Background technique [0002] [0002] The field of drilling in rock and other materials has prompted many developments in drilling technology. In this regard, such drilling involves harsh and severe conditions as well as drilling costs and related environmental issues, for which reason there are stringent requirements on the effectiveness, reliability and safety of the drilling method. [0003] [0003] Accordingly, industries that employ downhole drilling, such as the petroleum industry, are keen to develop drilling apparatus and methods that meet these needs and enable increased drilling rates and reduced tool wear. [0004] [0004] In this regard, the oil industry increasingly needs to drill deviated or horizontal long-reach wells to access new oil reserves. However, such drilling further introduc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/24E21B10/36
CPCE21B7/24E21B10/36E21B44/00
Inventor M·维尔茨哥鲁齐
Owner THE UNIV COURT OF THE UNIV OF ABERDEEN REGENT WALK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com