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MINIATURE FIBER OPTIC U-TURN FOR DOWNHOLE APPLICATIONS

IP.com Disclosure Number: IPCOM000085272D
Publication Date: 2005-Mar-02
Document File: 1 page(s) / 14K

Publishing Venue

The IP.com Prior Art Database

Abstract

Optical fibers are used in oil, gas, and other wells to enable fiber optic telemetry and also to allow distributed sensing of temperature and/or other parameters. In the latter application, the optical fibers act as sensors along at least a portion of their length. Optical fibers may have other uses downhole as well.

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MINIATURE FIBER OPTIC U-TURN FOR DOWNHOLE APPLICATIONS

Optical fibers are used in oil, gas, and other wells to enable fiber optic telemetry and also to allow distributed sensing of temperature and/or other parameters. In the latter application, the optical fibers act as sensors along at least a portion of their length. Optical fibers may have other uses downhole as well.

An optical fiber "miniature bend" is described in U.S. Patent No. 5,138,676 and is made by Alcoa Fujikura Limited. This miniature bend can be placed downhole at the end of a pair of optical fibers, forming a continuous loop, as shown below. The miniature bend could be used in other downhole applications, such as with stingers, pumpable devices, and others, where having a very small optical fiber miniature bend would be advantageous.

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