NEFU Sliding Sleeve

TThe Model NEFU Sliding Sleeve is a high-temperature, downhole device designed to provide communication between the tubing and casing. Its advanced design and materials ensure reliability and flexibility for a variety of well operations, making it a key component for selective flow control.

Applications

• Displacing kill or completion fluids.
• Enabling multiple zones to produce through a single tubing string.
• Selective testing and stimulation of individual zones.
• Circulating fluids to kill the well.
• Gas-lifting operations.
• Landing blanking plugs for well shut-in, tubing testing, or sleeve testing.
• Circulating inhibitors or methanol.

Features

• Non-Elastomeric Seals: Incorporates Teflon® encapsulated Viton O-rings for high-temperature resistance.
• Replaceable Vee Seals: Made from durable carbon graphite/Teflon® composition for easy maintenance.
• Flexible Installation: Can be installed at any location in the tubing string.
• Multiple Sleeve Usage: Supports more than one sleeve per tubing string without functional limitations.
• Selective Operation: Upward jarring opens the inner sleeve; downward jarring closes it.

Description

The NEFU Sliding Sleeve is engineered for robust performance in harsh downhole environments. Equipped with non-elastomeric seals, it offers excellent resistance to high temperatures and wear. Its F Landing Nipple profile and dual sealing bores make it compatible with various flow control devices, including blanking plugs and separation tools.

This tool enables selective opening and closing when multiple sleeves are installed, providing advanced flow control capabilities. The EB Shifting Tool ensures precise operation, preventing unintentional adjustments during wireline activities.

Constructed from durable materials such as 4140 L-80, 9 Cr, 13 Cr, and Incoloy 925, the NEFU Sliding Sleeve is built to withstand extreme conditions. Custom threading options are also available to suit specific operational needs.

Specifications

• Tubing sizes: 1.900” to 5 ½”.
• Temperature range: -4°F to 335°F (-20°C to 204°C).
• Seal material: Teflon® encapsulated Viton O-rings and carbon/Teflon® Vee seals.
• Materials: 4140 L-80, 9 Cr, 13 Cr, and Incoloy 925.
• Nominal OD varies depending on thread and application requirements.

Why Choose the NEFU Sliding Sleeve?

The Model NEFU Sliding Sleeve delivers high performance, durability, and operational flexibility. With its advanced sealing mechanisms, selective functionality, and compatibility with multiple installations, it is an essential tool for optimizing well operations and ensuring long-term reliability.

For additional details or customization options, contact your technical representative.