Precision polycrystalline diamond compact (PDC) pockets

Inactive Publication Date: 2016-01-21
SUPERIOR DRILLING PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides new tools and methods for manufacturing and remanufacturing drill bits. One method involves adding cutting surfaces with polycrystalline diamond compacts (PDCs) in each blade and a registration device in each cutter pocket. The cutting surface is automatically aligned within the cutter pocket using the registration device. Another method involves providing a drill bit with at least one blade and adding a cutter pocket with a registration device. The cutting surface is positioned within the cutter pocket with a constant peripheral brazed joint. The invention also includes wellbore drill bits manufactured using these methods. The technical effects include improved durability, better alignment, and more efficient use of drill bits.

Problems solved by technology

Under the high temperature, high stress, high impact, and / or corrosive conditions that the PDCs are subjected to, the PDCs often chip, crack, become loose, or otherwise degrade.
However, during initial fabrication and replacement, the PDCs may not be properly centered or positioned.

Method used

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  • Precision polycrystalline diamond compact (PDC) pockets
  • Precision polycrystalline diamond compact (PDC) pockets

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Embodiment Construction

[0016]As embodied and broadly described herein, the disclosures herein provide detailed embodiments of the invention. However, the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms. Therefore, there is no intent that specific structural and functional details should be limiting, but rather the intention is that they provide a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention

[0017]FIG. 1 depicts the current method of installing and replacing polycrystalline diamond compacts (PDCs) in drill bits. While the invention is described with reference to PDCs and drill bits, the cutting surfaces can be grit hotpressed inserts (GHIs), aluminum oxide, silicon carbide, cubic boron nitride or another material with a high

[0018]Young's Modulus and the housing can be a router or another drilling, grinding, or cutting device.

[0019]As can be seen in FIG. 1, in ...

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Abstract

Method of manufacturing and remanufacturing wellbore drill bits and wellbore drill bit manufactured or remanufactured by the methods are disclosed. The manufacturing method comprises providing a drill bit having at least one blade, providing at least one cutter pocket in each blade, providing a registration device in each cutter pocket, and positioning a cutting surface within each cutter pocket and in engagement with each the registration device therein.

Description

BACKGROUND[0001]1. Field of the Invention[0002]The invention is directed to methods and devices for manufacturing and refurbishing drill bits. Specifically, the invention is directed to methods and devices for inserting and replacing polycrystalline diamond compacts (PDCs) in drill bits.[0003]2. Background of the Invention[0004]Wellbore drilling is the process of drilling one or more holes into the ground for the extraction of water, brine, natural gas, petroleum, or other natural resources. One of the main components for wellbore drilling is the drill bit. Drill bits typically comprise a solid metal or composite matrix-type metal body having a lower cutting face region and an upper shank region for connection to the bottom hole assembly of a drill string formed of jointed tubular members which are then rotated as a single unit by a rotary table or top drive drilling rig, or by a downhole motor selectively in combination with the surface equipment. Alternatively, rotary drill bits m...

Claims

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Application Information

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IPC IPC(8): E21B10/56B24D18/00
CPCB24D18/00E21B10/56
InventorMEIER, GILBERT TROYOSTERLOH, JAMES D.SMITH, JOSHUA J.DICK, CAMERONASCHENBRENNER, JOSEPH
OwnerSUPERIOR DRILLING PROD