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Protection for Elastomer Sealing Pad of Formation Pressure Testing and Sampling Tools

IP.com Disclosure Number: IPCOM000225357D
Publication Date: 2013-Feb-12
Document File: 1 page(s) / 19K

Publishing Venue

The IP.com Prior Art Database

Abstract

Present downhole tools for formation testing and sampling use an elastomer pad to achieve a successful seal to the borehole wall. This sealing pad is usually positioned at the outer diameter of the tool and is vulnerable to damage. It is exposed to the downhole environment. The idea is to protect the vulnerable elastomer pad with a top layer of a more resistant material that is bonded to the elastomer. This material can either be metal or synthetic fibers. The idea is to make the pad stronger with mattes made of ceramic or synthetic fibers. If the rubber wears off, the mattes will act as barriers and will prevent or at least slow down the wear off. Multiple mattes will be implemented in the rubber in several layers.

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Title:

Protection for Elastomer Sealing Pad of Formation Pressure Testing and Sampling Tools

Abstract:

Present downhole tools for formation testing and sampling use an elastomer pad to achieve a successful seal to the borehole wall.  This sealing pad is usually positioned at the outer diameter of the tool and is vulnerable to damage.  It is exposed to the downhole environment.  The idea is to protect the vulnerable elastomer pad with a top layer of a more resistant material that is bonded to the elastomer.  This material can either be metal or synthetic fibers.  The idea is to make the pad stronger with mattes made of ceramic or synthetic fibers.  If the rubber wears off, the mattes will act as barriers and will prevent or at least slow down the wear off.  Multiple mattes will be implemented in the rubber in several layers.

Description:

Present downhole tools for formation testing and sampling use an elastomer pad to achieve a successful seal to the borehole wall.  This sealing pad is usually positioned at the outer diameter of the tool.  It is exposed to the downhole environment.  The idea is to protect the vulnerable elastomer pad with a top layer of a more resistant material that is bonded to the elastomer.  This material can either be metal or synthetic fibers.  This kind of protection would be completely new.  Nobody has heard of this kind protection for any wireline or while drilling tool.  The idea is to make the pad stronger with mattes made of ceramic...