OVERVIEW

The patented Barracuda™ HEX-Retainer™ is a high expansion basket retainer designed for well isolation or well abandonment. It can be installed anywhere in tubing or casing via slickline, digital slickline or e-line, providing an anchoring platform for sand, proppant, cement plugs and melted metal alloy plugs. The 2-7/8" model can be run through a 2-7/8″ No-Go nipple profile and has an expansion capability of up to 9-5/8″ casing.

The HEX-Retainer is mounted on our HEX-Hanger™ and can be quickly installed via a single run using the battery-powered Electro-SET™ (electro-mechanical setting tool), which is activated by a pre-programmed onboard timer or wireless command. In the case of a metal-alloy plug, the SonicGauge™ Barrier Verification System can be installed on the HEX-Retainer toolstring to measure and transmit pressure data to surface. This data will assure the integrity of the barrier over a multi-year period.

INSTALLATION

• The Electro-SET-HEX-Retainer toolstring is run-in-hole via slickline to depth
• An onboard timer activates the Electro-SET, expanding the HEX-Retainer grippers onto the tubing/casing wall via a soft-set pre-compression mechanism which provides high force distribution and engagement
• The Electro-SET is disengaged from the installed HEX-Retainer via a shear-pin mechanism which simultaneously releases the basket petals, allowing the basket to expand and seat against the tubing wall, sealing the annular space
• The Electro-SET is then pulled-out-of-hole, and the onboard setting log is downloaded to confirm successful installation
• The HEX-Retainer can immediately be used as an anchoring platform for a cement plug or a melted metal alloy plug