When the issue of subsea wells is broached all too often the top-hole construction is a neglected area. But if Norwegian-based Neodrill get its way that will soon change.
Neodrill’s Conductor Anchor Node (CAN) system uses high load carrying capacity suction anchors to secure seafloor mooring points via a large diameter, relatively short cylinder. Unlike traditional methods, no cement is required, negating the risk of conductor problems due to cementing failure. It also provides a well foundation to be drilled or jetted through, or with a preinstalled short conductor. It already has been proven in 17 installations to date with 14 runs in Norway and one on the U.K. Continental Shelf (UKCS).
However, outside Norway there appears to be a reluctance to adopt what appears to be a valuable tool to reduce costs and speed time to first oil. The technology is at the heart of a new joint industry project (JIP) by the Industry Technology Facilitator (ITF) in collaboration with Maersk Oil, Nexen, Shell, Siccar Point Energy, TechnipFMC and the Oil and Gas Technology Centre. The role of the JIP is to investigate an alternative well foundation technology for subsea E&P wells. The aim is to examine the versatility and robustness of CAN technology as an alternative well foundation for most seabed soils.