Wellbore composite plug assembly

Inactive Publication Date: 2015-01-15
DRILSEAL L L C
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0023]The plug assembly of the present invention can be installed down hole within a wellbore in order to isolate one portion of a wellbore from another, prevent fluid flow from one portion of a wellbore to another and provide a fluid pressure sealing barrier within said wellbore. Unlike conventional composite bridge plugs, the plug assembly of

Problems solved by technology

Such conventional drillable metallic plugs are generally highly reliable in operation, but are frequently too difficult and time consuming (and thus, too expensive) to drill out, mill up or otherwise mechanically break apart.
In certain applications, multiple drillable plugs are installed within a single wellbore, thus compounding the time and cost of drilling, milling or otherwise removing said plugs.
One mechanism that has not been reliably replicated by such conventional composite plug devices is the lock ring sy

Method used

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  • Wellbore composite plug assembly
  • Wellbore composite plug assembly
  • Wellbore composite plug assembly

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Embodiment Construction

[0032]The present invention comprises a plug assembly for down hole use in wellbores such as, for example, in oil or gas wells that penetrate subterranean formations. In a preferred embodiment, certain components of the plug assembly of the present invention can be beneficially manufactured from at least one material that can be relatively quickly and efficiently milled, drilled or otherwise mechanically broken apart such as, for example, composite resin impregnated fiber or other material exhibiting similar characteristics.

[0033]The plug assembly of the present invention can be installed to selectively isolate one portion of a wellbore from another, to prevent fluid flow from one portion of a wellbore to another and / or to provide a fluid pressure sealing barrier at a desired location within a wellbore. The plug assembly of the present invention can be beneficially set within the internal bore of a string of casing, production tubing or other tubular. However, it is to be observed t...

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Abstract

A down hole tool assembly can be installed at a desired location within a subterranean wellbore that is capable of isolating one portion of the wellbore from another, while sealing fluid pressure within the wellbore from at least one direction. The plug assembly can include components constructed of non-metallic material that can be drilled, milled or mechanically broken up more quickly and efficiently than conventional wellbore plugs.

Description

CROSS REFERENCES TO RELATED APPLICATION[0001]Priority of U.S. Provisional Patent Application Ser. No. 61 / 838,524, filed Jun. 24, 2013, and U.S. Provisional Patent Application Ser. No. 61 / 904,077, filed Nov. 14, 2013, both incorporated herein by reference, is hereby claimed.STATEMENTS AS TO THE RIGHTS TO THE INVENTION MADE UNDER FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT[0002]NoneBACKGROUND OF THE INVENTION[0003]1. Field of the Invention[0004]The present invention pertains to a down hole assembly such as, but not limited to, a drillable bridge plug that can be installed at a desired location within a subterranean wellbore. More particularly, a preferred embodiment of the present invention pertains to a bridge plug assembly capable of sealing fluid pressure within a wellbore from at least one direction. More particularly still, the present invention pertains to a plug assembly that can be drilled, milled or mechanically broken up more efficiently than conventional wellbore plugs.[00...

Claims

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Application Information

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IPC IPC(8): E21B33/12E21B33/129
CPCE21B33/129E21B33/1208
Inventor COX, BLAKE ROBINELDRIDGE, WILLIAM J.
Owner DRILSEAL L L C
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