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Tubular Gripping Die With Improved Torque and Axial Load Handling Capabilities

a technology of axial load and gripping die, which is applied in the direction of drilling rods, drilling accessories, earthwork drilling and mining, etc., can solve the problems of reducing the usefulness of tubular parts and the inability of handling dies to handle torqu

Inactive Publication Date: 2019-03-07
MCCOY GLOBAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent is about a device that prevents a tubular string from spinning. It does this by using teeth that grip the string and prevent it from moving.

Problems solved by technology

Increased penetration depth is not favored as deformation on the tubular body caused by the penetration of the die teeth decreases the usefulness of the tubular.
In this case, the handling dies are not designed to handle torque.

Method used

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  • Tubular Gripping Die With Improved Torque and Axial Load Handling Capabilities
  • Tubular Gripping Die With Improved Torque and Axial Load Handling Capabilities
  • Tubular Gripping Die With Improved Torque and Axial Load Handling Capabilities

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Embodiment Construction

[0037]The description that follows and the embodiments described therein are provided by way of illustration of an example, or examples, of particular embodiments of the principles of various aspects of the present invention. These examples are provided for the purposes of explanation, and not of limitation, of those principles and of the invention in its various aspects.

[0038]The present invention seeks to provide a solution to the problem of gripping against tubular torqueing and rotation in handling applications by providing a die that is optimized for both axial load carrying and high torque applications when used with equal radial load applied to the die.

[0039]In a preferred embodiment, the die presents horizontal teeth for handling the weight of the tubular string and also presents at least a portion of the die with vertical teeth to grip for torqueing applications. For the purposes of the present invention, the term ‘horizontal’ is understood to mean a direction parallel to a...

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PUM

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Abstract

A tubular gripping die is presented, the die comprising one or more axial load teeth and one or more torqueing teeth. A method of manufacturing a tubular gripping die is also presented. The method includes forming one or more axial load teeth extending from a base of the die; forming one or more torqueing teeth extending from the base of the die; and defining a gripping front face of the die, at least a portion of the gripping front face having a concave curvature to align with an outside diameter of the tubular to be gripped. The portion of the gripping front face formed with the curvature comprises any one of said axial load teeth, said torqueing teeth or both. A method of making up a tubular string from a plurality of tubular joints is also presented. A tubular handing tool comprising one of more tubular gripping dies, each die comprising one or more axial load teeth and one or more torqueing teeth arranged thereon.

Description

FIELD OF INVENTION[0001]The present invention relates to a tubular gripping die that optimizes both torque and axial load holding capability. The invention makes possible combined loading into a single tool and die arrangement. The invention also relates to methods of manufacture of said dies.BACKGROUND OF THE INVENTION[0002]Conventional dies used to grip tubulars for handling applications present the die tooth pattern in a manner which optimizes the axial load needed to restrain the tubular from axial movement. By contrast the tooth pattern presented in a torqueing application present the die teeth in a pattern that is optimized to restrain rotational movement.[0003]There are two primary means to optimize the die's performance; either increased penetration depth of the dies or increased surface contact between the dies and the tubular. Increased penetration depth is not favored as deformation on the tubular body caused by the penetration of the die teeth decreases the usefulness of...

Claims

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Application Information

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IPC IPC(8): E21B19/06
CPCE21B19/06E21B19/07E21B19/10
Inventor SONNIER, GARETH DUSTINMA, BIN
Owner MCCOY GLOBAL