Exploration and Appraisal
Safe ELSA® EA: Reliable In-Riser Systems for Safe Drill Stem Testing in Deepwater Environments
Guaranteed Subsea Well Control
Expro’s ELSA® EA (Expro landing string assemblies) in-riser well control systems ensure safe well operations during drill stem testing (DST) from a semi-submersible rig or drillship in up to 10,000 ft of water.
Our subsea landing strings enable rapid shut-in and disconnect. Our range of systems covers large bore, high-pressure, deepwater, and ESP applications, providing the right solution to match your needs.
Operational Applications
Cutting capability
Pump through capability
Independent ball closure
Redundancy
Downhole functionality
Small operating volumes
Advance Exploration and Appraisal Efficiency
Guarantees well isolation
Ability to kill well
Allows one ball to cut coiled tubing or wire, and another ball to seal
Rapid response well isolation and unlatch
Secondary unlatching system
Option for a permanent monitoring cable, SSSV control line, or chemical injection line to pass across the disconnect point of the subsea test
