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Thermally Activate Inflow Control Device

IP.com Disclosure Number: IPCOM000198656D
Publication Date: 2010-Aug-11
Document File: 1 page(s) / 58K

Publishing Venue

The IP.com Prior Art Database

Abstract

This invention is a thermally activated inflow control device which can be programmed to minimize cross flow of steam in Steam Assisted Gravity Drainage wells. When steam cross flows from the injector to the producer temperature quickly rises to the temperature of steam (~250 - 300 deg. C). We propose a completion consisting of two concentric casing stings with overlapping holes. As the temperature rises the two strings move relative to each other to close the openings. The relative motion of the two strings is controlled by the difference in thermal expansion coefficient of thermally activated "spring" and the metal casing.

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This invention is a thermally activated inflow control deviceĀ  which can be programmed to minimize cross flow of steam in Steam Assisted Gravity Drainage wells. When steam cross flows from the injector to the producer temperature quickly rises to the temperature of steam (~250 - 300 deg. C). We propose a completion consisting of two concentric casing stings with overlapping holes. As the temperature rises the two strings move relative to each other to close the openings. The relative motion of the two strings is controlled by the difference in thermal expansion coefficient of thermally activated "spring" and the metal casing.