NEXO Sliding Sleeve

Technical Information


The NEXO Non-Elastomeric Sliding Sleeve is a communication device with a ported inner sleeve that can be opened or closed using a shifting tool by standard slickline or coiled tubing methods. Equalizing holes in the inner sleeve provide pressure equalization between the tubing and casing annulus as the sleeve is opened. The Sliding Sleeve is made up to and forms part of the tubing string. The NEXO Sliding Sleeve is a shift-down-to-open tool.

The NEXO Non-Elastomeric Sliding Sleeve uses common machined parts that allow the shift-open direction to be changed from down-to-open to up-to-open by simply substituting different sub ends.

The NEXO Non-Elastomeric Sliding Sleeve is designed for use in high temperature wells to establish a means of communication between the tubing string and the casing annulus for single-tubing or multiple-tubing string completions. The NEXO Sliding Sleeve may be used for directing flow from the casing to the tubing in alternate or selective completions. Other applications include killing a well, spot acidizing and fracturing, or equalizing pressure between an isolated formation and the tubing string.

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