Combined directional and impact drilling motor

a directional drilling and impact technology, applied in the direction of directional drilling, earth drilling, drilling machines and methods, etc., can solve the problems of limited access to the benefits of directional drilling, unsuitable or too expensive rotor-stator technology for air hammer drilling tools, and limited access to directional drilling by the air hammer drilling industry

Inactive Publication Date: 2007-06-21
KENTUCKY AIR DRILLING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, underground directional drilling has been largely limited to drilling with roller cone or polycrystalline diamond compound (PDC) type bits with mud or air-mist rotary drilling motors utilizing rotor-stator or similar technologies.
However, rotor-stator technology is not suitable or too expensive for air hammer drilling tools.
Consequently, the air hammer drilling industry has had limited access to the benefits of directional drilling.

Method used

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  • Combined directional and impact drilling motor
  • Combined directional and impact drilling motor
  • Combined directional and impact drilling motor

Examples

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Embodiment Construction

[0012] Before explaining the disclosed embodiment of the present invention in detail it is to be understood that the invention is not limited in its application to the details of the particular arrangement shown, since the invention is capable of other embodiments. Also, the terminology used herein is for the purpose of description and not of limitation.

[0013] The present invention uses standard air hammer drilling tools and utilizes them in the directional drilling process. Existing hammer tools can be used without modification. In addition, the present invention generates enough torque to use conventional drill bits in some applications. The present invention achieves this by operating a drilling motor rotation device that uses compressed air from an above-ground compressor to rotate down-hole percussive or hammer drills in oil and gas well drilling, or other down-hole drilling applications.

[0014] As will be shown in more detail below, the present invention incorporates a commer...

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Abstract

A directional drilling mechanism is disclosed. The mechanism is also an impact drill.

Description

FIELD OF THE INVENTION [0001] This invention relates generally to directional drilling, and more specifically to directional drilling with air hammer drilling tools or non impact drill bits used in air drilling. BACKGROUND OF THE INVENTION [0002] Currently, underground directional drilling has been largely limited to drilling with roller cone or polycrystalline diamond compound (PDC) type bits with mud or air-mist rotary drilling motors utilizing rotor-stator or similar technologies. These technologies use liquid based drilling fluids. Large portions of the drilling industry use air hammer drilling tools also known as drill hammers for conventional straight-hole drilling that strictly use air as the drilling medium. However, rotor-stator technology is not suitable or too expensive for air hammer drilling tools. Consequently, the air hammer drilling industry has had limited access to the benefits of directional drilling. SUMMARY OF THE INVENTION [0003] It is an object of the present ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E21B7/04
CPCE21B4/14E21B6/06E21B7/04E21B7/067
Inventor SANDERS, MICHAEL P.FOSTER, JERRYBENNETT, DUANE H.
Owner KENTUCKY AIR DRILLING SYST
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