Stolt Offshore in Houston has successfully completed a deepwater subsea to subsea installation, including one flowline and one umbilical, for Shellâs single well Einset project in the Gulf of Mexico, reports Bjorn Koi, Stoltâs project manager. âSubsea to subsea installations are ârareâ in the industry but may become more prevalent as we move into deeper waters. To date, most subsea tie-backs have been supported by host platforms in shallower water. âIn the case of Einset, we tied back a new deepwater well to existing subsea infrastructure, also located in deepwater. This achievement demonstrates how the industry is applying proven technology while effectively utilizing deepwater construction vessels, such as Stoltâs âSeaway Falconâ,â said Koi.