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Drill with blind hole flushing function and system using the drill

A drill, full-section technology, used in drills, drilling equipment and methods, and earth-moving drilling, etc., can solve the problems of reduced chip removal rate and increased wear of cutting surfaces.

Inactive Publication Date: 2019-03-05
LONGYEAR TM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lack of water on the cutting face leads to a decrease in chip removal rate, which leads to increased wear on the cutting face

Method used

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  • Drill with blind hole flushing function and system using the drill
  • Drill with blind hole flushing function and system using the drill
  • Drill with blind hole flushing function and system using the drill

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Embodiment Construction

[0021] The present invention can be understood more readily by reference to the following detailed description, examples, drawings, and claims, as well as the above and following descriptions. However, before the devices, systems and / or methods of the present invention are disclosed and described, it should be understood that, unless otherwise indicated, the invention is not limited to the specific devices, systems and / or methods disclosed, since such specific devices, systems And / or methods are of course subject to change. It is also to be understood that terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting.

[0022] The following description of the invention is provided as a teaching of the invention in the best embodiment currently known. To this end, those skilled in the relevant art will recognize and appreciate that many modifications can be made in the various aspects of the invention described herein while...

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PUM

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Abstract

The present invention relates to a drill bit for forming a hole in an earth formation. The bit has a shank and a full face crown that cooperate to define an interior volume that receives water or other drilling fluid. The full-face crown defines a plurality of apertures extending from a cutting face of the full-face crown to the interior space. The full-face crown completely circumferentially surrounds the interior space of the drill bit.

Description

[0001] Cross references to related patent applications [0002] This application claims priority to US Patent Application Serial No. 14 / 085,218, filed November 20, 2013, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to drill bits for forming holes in earth formations, and more particularly to full face drill bits for forming holes in earth formations. Background technique [0004] Existing drill bits typically have a central gutter and a series of channels that provide fluid communication between the sides of the bit and the central gutter (no channels positioned directly on the cutting face of the bit). A center drain is required to allow removal of chips over the entire face of the drill bit. These existing drill bits do not allow water to flow directly over the cutting face of the drill bit. Lack of water on the cutting face leads to a decrease in chip removal rate, which leads to increased wear on the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B10/42E21B7/02
CPCE21B10/42E21B10/60
Inventor 科迪·A·皮尔斯迈克尔·D·鲁普克里斯蒂安·M·兰贝特
Owner LONGYEAR TM